Abbott 4 Series Service manual

LifeCare®

and

HomeCare®

MODEL

INFUSION

For

use

with:

LifeCare

LifeCare

LifeCare

HomeCare

For

country

04,13,15,18,22,27,

29,

36,

Model

Model

Micro

42, 46,

4

4P

Model 4H List 22100,

codes:

54,

88

4

SERIES

PUMPS

List

1814,1914,1915

List 2505,

List

1815,1916,1917

2506

24000

Technical

Service

Manual

Abbott

North

USA

Laboratories

Chicago,

II,

60064

430-01858-003

(Rev.

5/95)

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©Copyright 1995

This

document

retains

all

document

others without

andthe

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exclusive

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ho:-

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Laboratories

party

part

nor

discloseitto

using

this

430-01858-003(Rev. 5/95)

9Lfe.T

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and

HomeCare Model 4 Series

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430-01858-001

430-01858-002

430-01858-A02

(Rev.

(Rev.

(Rev.

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2/93)

4/93)

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Second

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430-01858-B02

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pageas430-01858-B02.

'*•-

436^01858-C02 (Rev.

s;ritr.r?2-..

LifeCare

vita

n

and

r '

HomeCare

(Rev.

6/93)

manuals

part

number

?.;

^-

Model4Series

3':'

11/93)

Updated

copyright

Updated

Section

voltage

in

calibration

cover

page

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and

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test

and

readings

side

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iv

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hardware
Section

4.4.3.5:

hardware

Section

numeric

drivers

Section
enable

protector

Section

and

information;

Section

test

Section

requirements

Section

Section

Section

reading

4.5.4.1:

and

circuitry;

4.5.4.2: Updated display

stretcher

circuitry;

4.5.4.3:

bar

display

4.5.4.4: Updated display

5.2:

5.2.5:

5,2.6:

5.2.9: Update voltage

Step

watchdog

Updated

watchdog

Updated

bar

display

and

Updated

segment

Updated

Updated

Added

3

information;

test

digit

display

numeric

drivers

PVT

Step

5

note;

4-31,

5-3,

5-5,

5-7,

4-22

4-32

5-4

5-6

5-8

4-21,

4-22

4-31,4-32

5-3,

5-4

5-5,

5-6

5-7,

5-8

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identifierinthe

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number

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Section

Figure

distance

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Section

distance

in

Section

materials

Section

shroud
replacement

Section

Updated

5.4.3:

5.4.4:

7-3:

container

7.2.4.4:

container

7.3.1.3:

7.3.1.3:

assembly

8:

Clarified

between

and

between

and

procedure

Updated

back

Added

Updated

page

assembledbyAbbott

on

the

cover

page.

Step

Step

vertical

levelofwater

midline

Clarified

levelofwater

midline

of

vertical

of

Updated

Updated

plunger

guide

specifications

part

number

Laboratories

This

change

3;

5-11,5-12

3

7-7,

set

7-9,

set

7-11,7-12

7-23,

8-1,8-2

back

includeachange

page

manualisidentifiedonthe

7-8

7-10

7-24

page

5-11,5-12

7-7,

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7-11,7-12

7-23

8-1,

back

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7-10

to

8-2

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7-26

430-01858-003 (Rev. 5/95)

Technical Sen/ice^Aaftiial

'•i-j'

5/95)

(Rev.

430-01858-003

iii

4

Series

Model

and

HomeCare

JJeCare

:t«0.

..-,--•'•"l

/•^r.C

-•:

.3(V»v-

History

Change

Insert

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Pages Pages

and

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(Rev.

Third

issue

of

r

Change

Description

5/95)

430-01858-003

Part

Number

Service

Manual.:.; j

Technical

IV

430-01858-003 (Rev. 5/95)

left

blank.

This

page

intentionally

>

i?3

J.A.~J

;>

Change-History

Contents

Contents

.••o

^Il^/

Section

INTRODUCTION

1.1

1.2

1.3

1.4

1.5

1.6

1.7

Section

WARRANTY

Section

SYSTEM

Section

THEORY

4.1

43

1

SCOPE

CONVENTIONS
ACRONYMS

USER

ARTIFACTS

SERIES

INSTRUMENT

1.7.1

1.7.2

1.7.3

2

3

OPERATING

4

OF

GENERAL

4.1.1

4.1.2

4.1.3

4.1.4
EXTERNAL

4^.1
4^.2
4^.3

4.2.4

4.2.5

4.2.6

4.3

OPERATIONAL

4.3.1

43.2

4.33

4.4

MONITORS

4.4.1

AND

ABBREVIATIONS

QUALIFICATIONS

SPECIFIC

UNPACKING

INSPECTION

SELFTEST

OPERATION

FUNCTIONS

CASSETTE

FLOWDETECTOR

ALARMS

4.1.3.1

4.1.3.2

NUMERIC

ACC

FEATURES

INSTALLATION

MANUAL

AUDIBLEALARM
NURSE-CALL

AND

INTERFACE

CONNECTOR
NURSE-CALL
FLOW

RS-485

RS-232I/OPORT
20-MAI/OPORT

MODES

4.3.1.1

4.3.1.2

4.3.13

4.3.1.4

4.3.1.5

43.1.6

DETECTOR

DATAWAY

DESCRIPTION

OF

OPERATION

LOAD/OFF
SELFTESTMODE
LOCAL

REMOTE

BATTERY

SYSTEM

SILENCE/ASK

DATA

FLOW

4.4.1.1

4.4.1.2

4.4.1.3

4.4.1.4

RETENTION

AND

DETECTORS

MONITORING

FLOWDETECTOR

DROP

SIGNAL

CURRENT

SYNCHRONOUS

ALARM

BAR

DISPLAYS

PORTS

J23

JACK

J21

CONNECTOR

I/O

RECHARGE

CONTROL

CONTROL

DISCHARGED

FAILURE

FUNCTION

FUNCTION

AMPLITUDE

PROCEDURE

J22

CONNECTOR

MODE

MODE

MODE

MODE

MODE

SYSTEM

PROCESSOR

MODULATOR

DEMODULATOR

JlOl

,.,.

1-1
1-1

1-2
1-3

1-5

1-5

1-6
1-8
1-9
1-9

1-9

2-1

3-1

4-1

4-1

4-1

4-2
4-2

4-2
4-2

4-2
4-3

4-3
4-4
4-4

4-5

4-5
4-5

4-6

4-6

4-7
4-8
4-8

4-9

4-9

4-10

4-11

4-12

4-12
4-12

4-13

4-14

4-14

4-15

LifeCare

and

HomeCare

Model4Series

v

430-01858-003

(Rev.

5/95)

Contents

4.4.2

4.43

4.5

ELECTRONICS

4.5.1

4.5.2

4.53

4.5.4

4.5.5

4.5.6

4.5.7

4.6

MECHANICAL

4.6.1

4.6.2

4.63

4.7

BATTERY

430-01858-003

4.4.1.5

4.4.1.6

4.4.1.7

PRESSURE

4.4.2.1

4.4.2.2

4.4.23

DROP

FLOW

FLOW

MEASURING

PRESSURE
PRESSURE

OCCLUSION

MALFUNCTION

4.43.1

4.4.3.2

4.43.3

4.43.4

4.4.3.5

4.4.3.6

4.43.7

INTERNAL
ROMTEST

POWER-UPTEST

HARDWARE
HARDWARE

SOFTWARE

MICROPROCESSOR

SUBSYSTEM

MPUPWA

4.5.1.1

4.5.1.2

4.5.1.3

4.5.1.4

4.5.1.5

MOTOR

4.5.2.1

4.5.2.2

4.5.2.3

4.5.2.4

DISPLAYPWA
DISPLAY

4.5.4.1

4.5.4.2

4.5.43

4.5.4.4

4.5.4.5
POWER

4.5.5.1

4.5.5.2

4.5.5.3

4.5.5.4

4.5.5.5

4.5.5.6

4.5.5.7

4.5.5.8

4.5.5.9

4.5.5.10
CURRENT

4.5.6.1

4.5.6.2

CONTROL

4.5.7.1

4.5.7.2

MICROPROCESSOR

MEMORY
MEMORY
MEMORY

I/O

PORTS

DRIVER

I/O

ADDRESS

INPUT

A/DCONVERTER

RS-485

DRIVER

HARDWARE
NUMERIC

DISPLAY

PROTECTOR

NUMERIC
DISPLAYTEST

SUPPLY

UNREGULATED

BATTERYPACK

BATTERY

DIODE

POWER

5

VDC

5

VDC

MOTOR

BATTERY
MEMORY

BOOST

AC

(MAINS)

DCOPERATION

SWITCHES

FRONT

REAR

SUBSYSTEM

CASSETTE

PUMPMECHANISM

MOTOR

AND

OPERATION

(Rev.

5/95)

AMPLITUDE

DETECTOR

ALGORITHM

SENSOR
SENSOR

ALARM

DETECTION

RAM

. . . . .

WATCHDOG
WATCHDOG

WATCHDOG

PRINCIPLES

CIRCUITRY
LATCH
PROTECTOR

PWA

DECODER

DATA

DATAWAY

POWER

REGULATOR
FAILURE

BUFFERS

PWA

WATCHDOG

AND

ENABLE

CIRCUITRY

AND

PWA

CHARGER

CONTROL

VOLTAGE

MONITOR
SUPPLY

CHARGER

BAR

BAR

SWITCH

DETECTOR

OPERATION

PANEL

PANEL

SWITCHES

SWITCHES

PRINCIPLES

MOTOR

OVERVIEW

THRESHOLD

PRESENCE

SYSTEM

PWA

PWA

ALGORITHM

CIRCUITRY

TEST

SANITY

CIRCUITRY

CIRCUITRY

...-.

PORT

DISPLAY

STRETCHER

DISPLAY

DC

POWER

CIRCUITRY

CIRCUITRY

CIRCUITRY

REGULATOR

CIRCUITRY

CIRCUITRY

PWA

. .
DRIVERS

DETECTION

(-004

AND

(-003

AND

TEST

CHECK

OF

OPERATION

.

CIRCUITRY

.

CIRCUITRY

DIGIT

AND

SEGMENT

SUPPLY

CIRCUITRY

CIRCUITRY

OF

OPERATION

vi

DETECTOR

HIGHER)
LOWER)

DRIVERS

DISPLAY

DRIVERS

CIRCUITRY

CIRCUITRY

...

Technical

Service

4-15

4-15

4-16

4-16

4-17
4-17

4-17

4-18

4-18
4-19

4-19

4-19
4-20
4-20

4-20
4-20

4-21
4-21

4-22
4-22
4-22

4-22

4-23

4-26

4-27

4-27

4-27

4-28
4-29

4-29
4-29

4-30

4-30
4-30
4-31

4-31
4-31

4-32

4-32

4-32

4-33
4-34
4-34

4-34
4-35

4-35

4-35

4-36

4-36

4-36

4-37

4-38

4-38

4-39
4-40

4-40

Manual

Contents

\jjyjj~

Sections

MAINTENANCE

5.1 PREVENTIVE MAINTENANCE •'.'".'

5.1.1

5.1.2

5.1.3

5.2

PERFORMANCE

5.2.1

5.2.2

5.2.3

5.2.4

5.2.5

5.2.6

5.2.7

5.2.8

5.2.9

5.2.10

5.2.11

5.2.12

5.2.13

5.3

BATTERY

53.1

53.2

5.4

BATTERY

5.4.1

5.4^

5.4.3

5.4.4

5.5

PVTDATAFORM

AND

SERVICETESTS

INSPECTING THE PUMP

CLEANING

SANITIZING

EQUIPMENT

PUMP

DRY

CASSETTE

TEST

STARTUPTEST

PRESSURE

HIGH

AND

DELIVERY

PIGGYBACK

BATTERY

MALFUNCTION
ELECTRICAL

END

OF

MAINTENANCE

DEPTH
RECHARGING

CIRCUIT

TEST

LOW
BATTERY
BATTERY

THE

THE

VERIFICATION

AND

INSPECTION

SETUP

TEST

FLOW

AUDIBLE

EQUIPMENT

BATTERY

ALARM

ALARM

ACCURACY

TEST

CHARGING

SAFETY

PERFORMANCE

OF

DISCHARGE

ALARM

ALARM
SHUTDOWN
CHARGING

PUMP

PUMP

MATERIALS

TEST

AND

SILENCE

AND

(MODEL

TEST

SIMULATION

TEST

AND

REQUIRED

...];.

....."

....

....

TEST

LOW

TESTS

TEST

TEST

TEST

CIRCUIT

. . . .

4P

ONLY)

....

TEST

VERIFICATION

CHARGER

........

. . .

REQUIRED

SWITCH

FLOW

TEST

: ; .

. .

ALARM

.

TESTS

>:

:

:

TEST

TEST

\

.

(SIMULATED)

. . .

..:.......

.
. .

5-1

5-1
5-1

5-2

5-3
5-3

5-3

5-4

5-4

5-4

5-5

5-6

5-7

5-7

5-8

5-9

5-9
5-9
5-9

5-10

5-10

.

5-10

5-11

5-11

5-11
5-11
5-12

.

5-13

Section

TROUBLESHOOTING

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

Section

6

TECHNICAL

AUDIBLEALARMS
ALARM

ALARM

OBTAINING
PUMP
FVTTROUBLESHOOTING

TEST

TROUBLESHOOTING

CONNECTOR

7

REPLACEABLE

7.1

REPLACEABLE

7.2

ADJUSTMENT

7.2.1

7.2.2

7.2.3

7.2.4

TOOLS

SHROUD

SHROUD

PRESSURE

7.2.4.1

7.2.4.2

7.2.4.3

ASSISTANCE

CONDITIONS

CODES

AN

PARTS

AND

PARTS

PROCEDURES

AND

TAB

REAR

PRESSURE

CALIBRATION

CAUBRATION

ALARM

REPAIRS

LIST

MATERIALS

CHECK

TAB

SENSOR

HISTORY

v .

: .

. .

.

REQUIRED

ADJUSTMENT

CALIBRATION

SENSOR

CALIBRATION

(PRESSURE

.

AND

SENSOR

TEST

(PRESSURE SENSOR PWA-004

SETUP

PWA-003

AND

LOWER)

AND

HIGHER) . .

...

6-1

6-1

6-1

6-2

6-2

6-2
6-4

6-17

6-19

7-1

7-1

7-3
7-3

7-3

7-4

7-5

7-5

7-6

7-8

LifeCare

and

HomeCare

Model 4

Series

vii

430-01858-003 (Rev. 5/95)

Contents

7.2.4.4

7.3

REPLACEMENT

7.3.1

7.3.2

7.3.2.1

7.3.2.2

7.3.2.3

7.33

7.3.4

7.3.4.1

7.3.4.2 FUSE

7.3.5

VELCRO

7.3.6

73.7

73.8

73.9

7.3.10

7.3.11

73.12

73.13

7.3.14

7.3.15

7.3.16

73.17

7.3.18

73.18.1

73.18.2

7.3.19

73.19.1

73.19.2

73.19.3

73.20

7.3.21

73.22

7.3.23

7.3.24

7.3.25

7.3.26

7.3.27

73.28

73.29

TOUCHSWTTCH

TRANSFORMER

7.330

7331

73.32

7.3.33

7.3.34

PRESSURE

SENSOR

TEST

PROCEDURES

SAFETY

REQUIRED

BATTERY

FUSE

AC

AC

NURSE-CALL

FLOW

FLOW

FEMALE

FLOW

CONNECTOR(S)

MAIN
POLE

POLE

AUDIBLE
SHROUD

ACCESSORY

CASE

PWA

AC

AC

AC

PIEZOELECTRIC

FEMALE

MAIN
MAIN
MAIN

FUSEHOLDERREPLACEMENT(115V~)

NURSE-CALL

PRESSURE

SET

RUBBER

MAINS

AND

EQUIPMENT

TOOLS

STANDARD

SPECIALTOOLS

MATERIALS

PACK

REPLACEMENT

FUSE

REPLACEMENT

AND

ANCHOR

POWER

POWER

CORD

CORD

CABLE

DETECTOR

DETECTOR

TERMINAL

DETECTOR

CONTROL

CLAMP

CLAMP

KNOB

SHAFT

ALARM

ASSEMBLY

(ACC)

REPLACEMENT

ONE-PIECE
CLAMSHELL

REPLACEMENT

POWER

DISPLAY

MOTOR

MOTHERBOARD

POWER

(MAINS)

POWER

CORD

POWER

CORD

TERMINAL

CONTROL
CONTROL
CONTROL

JACK

LEVEL

TYPE

SWITCH

FOOT

RECEPTACLE

AND

MATERIALS

HANDTOOLS

REPLACEMENT

FUSE

DRAWER

PAD

REPLACEMENT

STRAIN

PLUG

ASSEMBLY

ASSEMBLY

CONNECTOR

REPLACEMENT

KNOB

LEVEL

CASE

SUPPLY

PWA,

DRIVER

REPLACEMENT

RETAINER

PANEL

ALARM

CONNECTOR

SWITCH
SWITCH
SWITCH

REPLACEMENT

ASSEMBLY

REPLACEMENT

REPLACEMENT

REPLACEMENT

REPLACEMENT

SWITCH

PLUNGER

CONNECTOR

REPLACEMENT

CASE

PWA

DISPLAY

PWA

PWA

CORD

REPLACEMENT

REPLACEMENT

REPLACEMENT

REPLACEMENT

SELECT

REPLACEMENT

PAD

REPLACEMENT

ASSEMBLY

PRECAUTIONS

(115

RELIEF

REPLACEMENT

PLUG

REPLACEMENT

REPLACEMENT

REPLACEMENT

REPLACEMENT

REPLACEMENT

CLIP

SHAFT
SHAFT

WAFER

SWITCH

V~)

REPLACEMENT

BUSHING

REPLACEMENT

AND

CLOSED

HOUSING

REPLACEMENT

GUIDE

DRIVER

P10

REPLACEMENT

(OR

PINS)

PWA,

(115

V~)

REPLACEMENT

AND

CLOSED

ASSEMBLY
ASSEMBLY

REPLACEMENT

REPLACEMENT

(MICRO

REPLACEMENT

(100

V~,

REPLACEMENT

ENTRY

AND

MALE

REPLACEMENT

MPU

(100V-,

ENTRY

REPLACEMENT
LUBRICATION

ONLY)

PWA,

220

(115

(100

PIN

V~)

V~)

V~,

220

AND

220

V~)

(115

V~)

V~)

...

...

. .

7-10

7-11

7-11

7-11

7-12

7-12

7-12

7-13

7-14

7-14

7-15

7-15

7-16

7-16

7-17

7-17

7-18

7-19

7-20
7-20

7-21

7-22
7-23

7-24

7-26

7-26
7-28

7-30

7-30

7-31
7-33

7-34

7-35

7-36

7-36

7-38

7-39

7-40
7-43
7-44

7-45

7-46

7-46

7-47

7-48

7-49

Section

8

SPECIFICATIONS

430-01858-003

(Rev.

5/95)

viii

Technical

Service

8-1

Manual

Rgures

^jjgs/

Section

DRAWINGS

Section

INDEX

9

10

Figures

Figure

Figure

Figure4-3. Pump Cassette

Figure5-1. DeliveryAccuracy Test Setup

Figure7-1. Shroud Tab Check
Figure7-2. Pressure Sensor AdjustmentResistors
Figure7-3. Calibration Test Setup

Figure7-4. Battery Pack Replacement

Figure
Figure

Figure

Figure 7-8. ACC.Connector Pin Arrangement

Figure7-9. Rear Panel Screw Removal (One-Piece Case)

Figure 7-10.

Figure
Figure
Figure
Figure

Figure 7-15.

Figure

Figure7-17.ACPower Cord Replacement
Figure7-18.Touchswitch Panel Replacement
Figure7-19.Piezoelectric AlarmReplacement

Figure

Figure 7-21.Main Control

Figure 7-22.Main Control Switch

Figure 9-1.
Figure 9-2. Schematic,

Figure 9-3. Schematic,

Figure 9-4. Schematic, Interconnect, International, Micro
Figure 9-5. Schematic, Pressure Sensor
Figure 9-6. Schematic, Motherboard
Figure 9-7. Schematic, MPU
Figure 9-8. Schematic, MPU
Figure 9-9. Schematic,

Figure 9-10. Schematic, Motor Driver PWA, Series 4
Figure 9-11.Schematic,
Figure 9-12.Schematic, Display

Figure 9-13. Schematic,

Figure 9-14.Schematic, Power
Figure 9-15.Schematic, Current Boost Charger,

Figure 9-16.IPB for

4-1.

FlowDetectorSchematicDiagram

4-2.

PowerControl Circuitry

7-5.

Main Control Knob Removal

7-6.

PoleClamp Knob Removal

7-7.

Shroud AssemblyPlunger Guide Replacement

Removing

7-11.

Case Screw Removal (Clamshell Case)

7-12.

Openingthe Clamshell Case

7-13.

Shield Removal

7-14.

Heat

PWA

7-16.

Motherboard PWA Removal

Chassis From Cover

Sink

Screw Removal

Removal

(115

7-20.

Main Control Switch Shaft Assembly

Block

Diagram, Series 4

the

Switch

System

System

Motor

Display

Display

Pump

Shaft

Assembly

Shaft

Assembly

Interconnect,

Interconnect, Micro 4/MDL4

PWA,

PWA,

Series 4

PWA,

Micro 4/Model4

Driver

Supply

PWA,
PWA,

Driver

PWA,

MDL

Micro 4

PWA, Micro

PWA,

PWA,

Model

Series 4 .

Micro

4

Series 4

Volt)

with

E-Ring Removal

4P

Micro

4/Model

4/Model

4/Model

MDL

4/PCA

Switch

4/MDL

4

4

Housing

4

4

Removed

9-1

10-1

4-14

4-33

4-39

5-5

7-4
7-6
7-8

7-14

7-20
7-21

7-24

7-26

7-27

7-28

7-29
7-29
7-30
7-31

7-32

7-33

7-35
7-37
7-39

7-42

7-42

7-43

9-3
9-5

9-9

9-13

9-17
9-21
9-25
9-29
9-31

9-33
9-35
9-39

9-43

9-45
9-65

9-69

LifeCare

and

HomeCare

Model4Series

ix

430-01858-003

(Rev.

5/95)

Tables

Tables

Table

1-1.

Conventions

Table

1-2.

Model 4 Series CaseTypes and I/O Capabilities

Table 1-3. Series Specific Features - Model 4 Series
Table 4-1. ACC. Connector
Table 4-2. User Controls and Operating Modes

Table 4-3.

Table

4-4.

ASK

Function Messages

I/O

Address

Table 4-5. Numeric and Bar Displays

Table 5-1. Cleaning Solutions

Table

6-1.

Alarm

Codes

Table 6-2. Troubleshooting
Table 6-3. Troubleshooting Fluid Flow
Table 6-4. Troubleshooting Battery Operations

Table

6-5.

Troubleshooting

Table 6-6. Troubleshootingthe Pump Displays

Table 6-7. TroubleshootingExternal Controls

Table 6-8. Troubleshooting the PumpTouchswitches

Table 6-9. Troubleshooting the Pump Mechanism
Table

6-10.

Troubleshooting the Dataway Function (RS-485 Only)

Table 6-11.Troubleshooting

Table

6-12.

Troubleshooting Miscellaneous Conditions

Table 6-13.Troubleshooting
Table 6-14.

Test

Connector

Table9-1. Drawings
Table9-2. IPB for

the

Table

(J23)

Pump

J23

Pin Arrangement

Audible

Alarms

Core Failures

the

Nurse-Call Alarm

with

the

PVT

Pin

Assignments

1-2

1-6

1-7
4-4
4-6

4-11

4-24

4-29

5-2

6-3

6-4
6-5
6-9

6-11

6-12

6-13

6-13

6-13
6-15

6-16

6-16

6-18
6-19

9-1

9-89

430-01858-003 (Rev. 5/95)

Technical

Service

Manual

^ Section1

INTRODUCTION

LifeCare®

are

identifiedbythe

•
Q

•

•

The

Model4except

LifeCare Micro

and

LifeCare
LifeCare

LifeCare

HomeCare

LifeCare

HomeCare

Model
Model

Micro

Model

Model4isabaseline

that

features

Model4Hversionofthe

For

details

Features.

about

the

1.1

SCOPE

The

manualisorganized

Model

following

4
4P

4H

Dual

Rate

delivery

Model4

various

into

4 SeriesInfusionPumps, herein

model

11

designations:

infusion

automatic

rates

from

hasalimited

pump

configurations,

sections:

pump.

The

LifeCare Model 4Pissimilartothe

piggybackingisavailableonModel 4P.

0.1to99.9

delivery

milliliters

rate

range

refertoSection 1.6,

referred

per

for

home

to asthe pump,

hour

(ml/hr).

care

applications.

Series

The

The

Specific

•

Section

Q

Section2Warranty

•

Section3System

•

Section4TheoryofOperation

•

Section

Q

Section6Troubleshooting

•

Section7Replaceable

•

Section8Specifications

Q

Section9Drawings

•

Section

•

Technical

The

material in

testing,

adjustment

Specific

system

1

Introduction

5

Maintenance

10

Index

Service

this

various

Bulletins

manual

service

procedures, troubleshooting,

instructions

operating

for

manuals.

Operating

and

Parts

is limited to technical information necessary for

tests,

pump

Manual

Service

and

interpreting

Tests

Repairs

and

system

alarm

and

authorized repairsonthe

operation are providedinthe

status

LifeCare

messages,

pump.

and

HomeCare

battery

field

Technical

Service

Manual

1-1

430-01858-003

(Rev.

5/95)

Section1INTRODUCTION

Ifa problem in

contact

Abbott

pump

operation cannot be resolvedusing the information in this manual,

Laboratories (see Section 6.1, Technical Assistance).

Note: Figures are rendered as graphic representations to approximate the actual product;

therefore, figures may

exactly reflect the product. Display screens

and

touchswitch

not

labels may vary slightly,depending on the configuration ofthe pump system in use.

1.2

CONVENTIONS

The conventions listed in Table 1-1, Conventions, are used throughout this manual.

Table

1-1.

Conventions

CONVENTION

Italic

[ALLCAPS]

Reference to a section, figure,

table,orpublication

In-text references to keys
described

in

brackets

APPLICATION

in all

caps

and

are

enclosed

EXAMPLE

(see

Figure5.1, DeliveryAccuracy

Test Setup)

[SILENCE]

ALL

Bold

loovl

115Vf

220

V|

CAPS

Screen

Emphasis

When

specific to a
voltage
an

iconatthe

section.

Whenadescriptionora

the

software

section

versionorfinal

heading.

displays

a description or procedure is

pump

with a particular

rating, this is

beginning of

designated

the

by

procedureisspecific to a

assembly

dash

numberisshowninparentheses

CHK

CAUTION:
grounding

handling

—d

j^vj

particular

DOSE

Use

proper

techniques

ESD

when

components.

To

115

'

follows:

replace

volt

the

pump,

fuse

proceed

seriesorversionofthe

following

in a

as

pump,

the

430-01858-003 (Rev. 5/95)

1-2

LifeCare

and

HomeCare

Mode!4Series

1.3 ACRONYMS AND ABBREVIATIONS

Throughout

information

A

WARNING

ALL

this

as

TIMES.

follows:

THREATENING.

CAUTION:
contains

Note: A

1.3

A

CAUTION

information

note

highlights

ACRONYMS

Acronyms

and

abbreviations

ABSPRES

manual,

CONTAINS

FAILURE

that

warnings, cautions,

WARNING

SPECIAL

TO

usually

could

information

AND

usedinthis

A

Ampere

Absolute

SAFETY

OBSERVE

appears

prevent

that

ABBREVIATIONS

pressure

and

notes

EMPHASIS

A

WARNING

in

front

ofaprocedure

irreversible

helps

explainaconceptora

manual

areasfollows:

are

used

AND

MUST

IS

POTENTIALLY

equipment

to emphasize

BE

OBSERVED

or

statement.

damage

procedure.

important

AT

LIFE

or

failure.

It

CMOS

DIFPRES

DMM

DPM

DSPLN

ECG

EEG

EMG

EMI

ESD

ETO

AC

ACC

A/D

ADC

Ah

AS

dB

DS

Hz

IC

Alternating

current

Accessory

Analog-to-digital

Analog-to-digital

converter

Ampere-hour

Address

Complementary

Decibel

Differential

Digital

Digital

Data

Display

strobe

pressure

multimeter

pressure

strobe

enable

metal

meter

oxide

Electrocardiogram

Electroencephalogram

Electromyogram
Electromagnetic interference

Electrostatic discharge

Ethylene

Hertz

Integrated

oxide

circuit

semiconductor

Technical Service Manual

1 _ o

430-01858-003

(Rev.

5/95)

Section 1

INTRODUCTION

MAL

LEDCATH

ALM

CODE

MFULL

INIT

IOA

IOD

EPB

IRQ

kHz

kPa

KVO

LED

LSB

mA

I/O

IV

Initiate

Input/output

Input/output

Input/output

Illustrated

Interrupt

Intravenous
Kilohertz

Kilopascal

Keep
Light

LED

Least
Milliampere

Malfunction

Message

request

vein

emitting

cathode

significant

full

parts

open

alarm

address

data

breakdown

diode

bit

code

MHz

ml/hr

MPU

MSB

NCALL

OKBATT

ml

ms

mV

N/A

NC

NO

No.

P/N

psi

psig

Megahertz

Milliliter

Milliliter

per

Microprocessor

Millisecond

Most

significant

Millivolt

Not

applicable

Normally

Nurse

Normally

Number

OK

Part

Pounds

Pounds

call

battery

number

closed

open

per

per

square

square

hour

unit

bit

inch

inch

gauge

i.nn'a

(Do\i

PVC

PVT

PWA

PWB

PWRCTL

PWRUP

c,iQx,\

Polyvinyl

Performance

Printed

Printed

Power

Power

wiring

wiring

control

up

chloride

verification

assembly

board

1

.4

test

LifeCareand HomeCare

Model

4 Series

1.4

USER

QUALIFICATIONS

\|§py

SFTWRREV

UART

VMEM

VMOT

WDSTB

RAM

ROM

RST

RTS

TRE

VDC

SD

SW

HA

V

jiF

Random

Read

Reset

Requesttosend

Serial

Software

Switch

Transmit

Universal

Volt

Volt

Voltage

Motor

Watchdog

Microampere

Microfarad

access

only

Data

revision

enable

asynchronous

direct

memory

voltage

memory

current

strobe

memory

receiver/transmitter

requester

Microsecond

\xs

1.4

USER

The

Model 4 Series

of

licensed

in

the

QUALIFICATIONS

physicians,

useofthe

infusion

andbylicensedorcertified

pump

pumps

andinthe

are

administration

1.5

ARTIFACTS

Nonhazardous,

administered

standards,

EEG

machines.

the

monitoring

its

sensing

physiological signals. To determine if

causedbythe

thatitis temporarily

it

was

probably

maintenance
appropriate

low-level

using

but

may

create

These

machineisnot

electrodes,

pump

caused

of

the

monitoring

electrical

potentials

infusion devices. These potentials

artifactsonvoltage-sensing

artifacts

varyata

operating

these

instead

not

deliveringfluid.

artifacts

of some

by electronic noise generated by

monitoring

system

equipment

documentation

for

useatthe

healthcare

of

intravenous

are

commonly

equipment

rate

thatisassociated

correctlyorhas

may

be

accentuated

the

abnormalityinthe

other

sourceinthe

Disappearanceofthe

should

for

eliminate

setup

directionorunder

professionals

(IV)

fluids.

observed

are

well

within

suchasECG,

with

the

looseordefective

so

as

to

monitoring

environment,

abnormality

the

pump.

the

artifact

and

maintenance

the

supervision

who

are

trained

when

fluids

accepted safety

EMG,

infusion

rate.

connections

simulate

actual

equipment

set

the

pump

indicates

Proper

setup

Refer to

instructions.

are

and

If

to

is

so

that

and

the

Nj|^j^

Technical

Service

Manual

1-5

430-01858-003 (Rev. 5/95)

Section1INTRODUCTION

1.6

SERIES

Features

Model 4 Series

Model4Series.

Note:

When

case.

Model

Model

specific to

Case

Case

pumps

4

SPECIFIC

the

Case

Types

type

A:

One-piece

type

B:

Clamshell

with

Type A

Table

Numbers*

1-2.

List

1814

1914

FEATURES

Model 4

and

cases

Model4Series

Series

I/O

Capabilities,

case

case

are

factory refurbished,

Final

850-01401-001

850-01401-003

850-01614-001,-002,

infusion

Case

Types

Assembly

-011

pumps

and

Number*

-003,

are

summarized

in

Table 1-3, Series Specific Features -

they

are

and

-007,

refurbished

I/O

Capabilities

-009,

Type

Type

with

Case

Type

A

A

Table 1-2,

a Type B

I/O

RS-232

None

Model

Micro

4P

1915

2505

2506

1815

1916

1917

850-01401-004

850-01401-013,

850-01614-005,

850-01614-014

850-01401-005,

850-01401-006,

850-01401-014,-017,-021

850-01400-001

850-01400-003

850-01627-001,

850-01400-004

850-01400-006,

-015,

-022

-006,

and

-007,

-008,

-002,

-007,

above

-016,

-008,

-009

-010,

-009

-008

-018,

-010

-011

-020,

Type

TypeB

Type

TypeB

Type

Type

TypeB

Type

Type

Type

TypeB

A

RS-485

RS-485

A

RS-485

RS-485

A

None

RS-485

A

RS-485

RS-232

A

None

A

RS-485

A

RS-485

430-01858-003 (Rev. 5/95)

850-01627-005,

850-01627-015

-006,

and

1-6

010

above

LifeCare

and

Type

TypeB

HomeCare

A

Mode!4Series

RS-485

RS-485

Table

1-2.

Model4Series

Case

Types

and

1.6

I/O

Capabilities

SERIES

SPECIFIC

FEATURES

N||^/

Model

*

Model

List

List

(see

4H

number

Characteristic

numbers

Table 1-2)

Piggyback pump

List

Numbers*

22100

24000

and

final

Table

set?

1814

1914
1915

No

850-01557-001

850-01557-004

850-01557-006,

assembly

1-3.

Series

Model

4

Final

Assembly

number

Specific

Model 4

2505

2506

Yes

Number*

-007,

-008

are locatedonthe

Model4Series

•

Infusion

Model

Features

Series

4P

Case

Type

Type

Type

TypeB

rearofthe

pump.

Pump

Model

1815

1916

1917

No No

4

Micro

22100

24000

A

A

Model

I/O

20

mA

RS-485

RS-485

4H

Set

type switch?

Row

alarms

Row

detector

required?

Pump

cycle delivery

characteristics:

Numberofdrops

falling in IV

chamber

filling

set

during

stage

drip

No

Software

below
FLOW
KVO

Software

232

HI
LOW
KVO

and

FLOW

FLOW

version,

232:

version

above:

Optional

Approximately

one

1/15

ml drop

No

Software

232
HI

LOW

KVO

and

FLOW

FLOW

version

above:

Optional

Approximately
one

1/15 ml drop

Yes:

Type A for 1/60ml

drops

TypeB

for

1/15

ml

drops

Software

below

FLOW

KVO

Software

232

HI
LOW
KVO

Yes

232:

and

FLOW

FLOW

version,

version

above:

Approximately

four 1/60 mldrops

No

Software

below

FLOW
KVO

Software

232

HI
LOW
KVO

232:

and

FLOW

FLOW

version,

version

above:

Optional

Approximately
one

1/15 ml drop

Average delivery

increment during

pumping

Technical

stage

Service

Manual

Nottoexceed

5.6

u.L

Nottoexceed

5.6

uL

1-7

Nottoexceed

2.8

\iL

Nottoexceed

5.6

^L

430-01858-003 (Rev. 5/95)

Sectionl

INTRODUCTION

Characteristic

KVO

rate

Note: Rate may be

lessifset

rateislower

delivery

Flow monitoring:

Operating angle

from

vertical

Row

alarm

monitoring

Table

1-3.

Model

4ml/hr

0°-25°

Number of

minus

number

Series

4

drops

pumping cycles is

> 5

with

number

drops

and

number

of

cycles

both

to

zero

whenever

either

reaches

Specific

4ml/hr

0°-25°

Number of drops

of

minus

pumping cycles is

of

> 5

drops

set

of cycles both

to

12

either

Features - Model 4

Model 4

Model

with

zero

number

number

and

number

whenever

reaches

Series

4P

of

set

12

Infusion

Model

Micro

1

ml/hr

0°-15°

Type A: Number

ofdrops divided

by 4 minus

number

of

pumping cycles is

> 5

with

drops

and

ofcycles both

to

zero

either

reaches

TypeB:

Model

Series

Pump

4

of

number

number

whenever

Same

4

4

0°-25°

Numberof drops

minus

pumping cycles is

> 5

drops

of

of

to

set

either

12

as

Model

ml/hr

with

cycles

zero

number

number

and

number

both

whenever

reaches

4H

of

of

set

12

1.7

INSTRUMENT

PROCEDURE

The

instrument

self

test.

CAUTION:
two-way

CAUTION:

unpacking,

receipt

Note:

the

for

of

Do

battery

24

hours.

radiosinclose

installation

Useofradio

Product

inspection,

pump.

not

Do

place

is fully charged,

INSTALLATION

procedure

frequency

proximity

damage

and

self

not

place

the

pumpinserviceif

connect

may

the

consistsofthree

emitting

of

this

device

occur

test.

pump

the

unless

The

in

the

batteryisnot

pump

steps:

devices

may

such

affect

proper

battery

may

serviceifit

to alternating

unpacking,

as

cellular

its

operation.

care

is

not

be

fully

fails

the

self

fully

charged.Tomake

current

inspection,

telephones

exercised

charged

test.

(AC)

(mains) power

and

and

during

upon

certain

430-01858-003 (Rev. 5/95)

1-8

LifeCare

and

HomeCare

Model4Series

mjy-y

1.7.1

UNPACKING

Use

care

when

for

returning

container

1.7.2

the

also

INSPECTION

unpacking

pumptothe

the

pump.

factoryincaseitis

containsacopyofthe

Retain

system

1.7

INSTRUMENT

the

packing

damagedorfails

operating

manual.

slip

and

INSTALLATION

save

all

the

self

packing

test.

The

PROCEDURE

material

shipping

Inspect

the

the

delivering

CAUTION:

damaged;

1.7.3

SELF

contact

TEST

Note:Donot

the

self

test,

1.

Connect

2.

Connect

3.

Set

the

medium,

4.

Turn

5.

The

operations:

-

Initializes

been

packing

carrier

Inspect

place

proceed

the
the

AUD. ALM.

or

the

main

pump

reached

container

immediately.

the

pump

Abbott

the

power
flow

Laboratories

pumpinservice

as

follows:

cord

detectortothe

switchonthe

high.

control

switch

automatically

all

data

except

for

shipping

for

damage.

to a

properly

enters

historyifthe

damage.

(see

until

FLOW DET.

backofthe

to

LOCK/ON.

the

Should

Do

not

Section

the

self

grounded

pumptothe

self-test

four-hour

any

use

the

6.1,

Technical

test

has

AC

(mains)

receptacle

mode

data

damagebefound,

pumpifit

Assistance).

been

conducted.

outlet.

on

the

backofthe

desired

and

retention

volume

performs

interval

appears

To

level: low,

the

following

contact

to

be

conduct

pump.

has

-

-

-

-

-

If

the

Section

Technical

Tests

Checks

Illuminates

legends

Activates

Checks

pump

6.1,

Service

fails

Technical

random

failure

audible

critical

the

Manual

access

monitor

all

numeric

alarm

data

self

test,donot

Assistance).

memory

test

elements,

integrity

(RAM)

status

message

placeitin

1-9

and

read

display

service;

only

contact

memory

elements,

Abbott

(ROM)

and

front

Laboratories

430-01858-003

panel

(Rev.

(see

5/95)

4

Series

Model

and

HomeCare

UfeCare

1-10

430-01858-003 (Rev. 5/95)

left

blank.

This

page intentionally

Section

1 INTRODUCTION

^ Section 2

WARRANTY

Subject

Abbott,

and

periodofone

a
in

purchase.

fitness

Purchaser's

product
such

the

to

the

terms

warrants

be

free

from

year

material

causebebasedincontract,

price

and

Abbott

for a

particular

exclusive

Innoevent

of

workmanship

such

and

that

(a)

defectsinmaterial

after

makes

purpose,orany

remedy

shall

product,

consequential, or special

Warranty

The

altered,

judgment,

been

The

performs or

having

documentation

repairor
items

product

foregoing

or

to

altered,

foregoing

been

other

used

returnedtoAbbott

warranty

other

affect

effaced,

its

or

warranty

attempts

to perform

trained

and

approved spare parts. For purposesofthe

service"

means

stabilityorreliability,orin

by

suchasbatteries, flow detectors, detachable AC power cords,

conditions

the

product

purchase,

under

no

other

shall

Abbott's

and

herein,

shall

and

workmanship

and

(b)

the

normal

warranties,

other

be,atAbbott's

liability

negligence,

in

no

event

arising

damagesorlosses

mustbeproperly

shallbevoidinthe

than

in

accordance

removed.

event

shallalsobevoidinthe

any

majorrepair or

an

authorized

any

repairor service

representative

Abbott

Laboratories,

conformtoAbbott's

under

replaceable

use

and

service

expressorimplied,asto

matter.

option,

outofany

strict

liability,

shall

Abbott

or for

lost

packaged

the

product

with

product

the

event

event

any

other

normal

battery

the

shallbefree from

for a

repairorreplacementofthe

cause

other

tortorotherwise)

be

business,

and

has

been

manuals

the

serialorlot

person,

including

serviceonthe

of

Abbott

preceding sentence, "major

other

than

the

replacementofaccessory

herein

standard

use

and

periodof90

merchantability,

whatsoever

liable

for

revenues,

sent

freight prepaid.

misused,

so

as,

the

product

and

and

patient

referredtoas

specifications

service

days

incidental,

for

defects

after

(whether

exceed

or profits.

damaged,

in

Abbott's

number

has

Purchaser,

without

using

Abbott

pendants.

In

providing

responsibility or liability for

or service, regardlessofwhether

service. It

representative performingrepair or service is

Technical Service Manual 2 -1 430-01858-003(Rev.5/95)

any

is

understood

parts

for repair or service

the

actions or inactionsofthe

such

person

and

acknowledged

notanauthorized

has

of

been

that

the

product,

person performing

trained to perform

any

person

agentofAbbott.

Abbott

other

shall

such

than

have

such

repair or

an

no

repair

Abbott

LifeCareand HomeCare Model4 Series

2-2

430-01858-003 (Rev. 5/95)

left

blank.

This

page

intentionally

2

WARRANTY

Section

430-01858-003 (Rev. 5/95)

-1

Technical Service Manual 3

the

of

Operating

Assistance).

(see

Section 6.1,

a copy

insert

System

Laboratories

reference,

Abbott

contact

here.

For

convenient

MANUAL

available,

manual

pump.

every

HomeCare Model 4 Series Infusion Pumps

and

OPERATING

is

not

manual

operating

with

LifeCare

system

included

of

the

Technical

If

an

operating

appropriate

Manual is

A

copy

SYSTEM

^ Section 3

Series

(Rev.

and

Model 4

HomeCare

3 - 2 LifeCare

5/95)

430-01858-003

left

blank.

This

page

intentionally

MANUAL

OPERATING

3

SYSTEM

Section

Section

4

THEORY

This

section

Related
general

operation,

mechanical

Note:

an

Whenasignal

active

4.1

GENERAL

The

Model4Series

housed

mechanical
include

driver

The

pumping

(one

1/15

mechanism.

pumping

motor

milliliter

describes

drawings
functionsofthe

monitors

low

positive

printed

are

subsystem

signal.

displacement

subassemblies

wiring

mechanism

volumeiscalculatedasa

revolution

(ml)offluidina

OF

the

providedinSection 9, Drawings.

pump

and

detectors,

principlesofoperation.

nameisfollowedbyan

OPERATION

theory

of

operation

and

providesabrief

electronics

for

subsystem

asterisk,

FUNCTIONS

infusion

assemblies

pump

pump.

used

for

operation

(PWA),

contains

The

motor

the

electromechanical

driverishoused

and

controlofthe

battery

is stepper-motor driven to

functionofthe

equals

one

primed

pump

pump

stroke

chamber).

the

Model4Series

The

theoryofoperation

overviewofexternal

principles

suchasINIT ,

with

pump.

pack,

the

display

enableasimple

numberofstepsofthe

which

equals

the

drivers

all

The

panel,

control

of

asterisk

the

displacement

infusion

interface

operation,

withacassette

electrical

subassemblies

and

pump.

describes

ports,

and

indicates

and

the

pump

logic. The

stepper

motor

of

N^ggi/

The

flow

detector

to

the

numberofmotor

motor

number

revolutions

of

drops

DELIVERED

4.1.1

CASSETTE

The

cassetteisdesigned

An

air-trap

trappedinthe

chamber.
open,

resultinginno

pumpedtothe

The

cassette

compression

be

carried

pump

on

the

chamber

The

into

operation

model

monitors

fluid drops. The control logic

revolutions.

by

more

than

by

more

light

emitting

holds

chamber,anair

compressibilityofthe

deliveryofsolution.

patient.

must

be

than

diode

withanoutlet

air

bubble

correctly

chamberorfails to

the

compression

stops

and

a flow/KVO

and

versionofthe

When

four,

four, a flow

(LED)

bubblesoroutgassing

the

or

the

display

valve

that

numberofdrops

number

alarm

indicates

requires

maybecarried

air

primed.

clear

sufficient

chamber.

pump.

bubble

alarm

prevents

This

outlet

Incorrect

air

from

In

either

or low flow/KVO

compares

of

motor

is

generated

the

natureofthe

hydraulic

from

solution.

through

the

outlet

valve

feature

cassette

the

air

case,ifthe

the

exceeds

revolutions

pressuretooperate.

the

cassettetothe

valve

prevents

priming

trap,

permitting

flow

detectorisattached,

alarm

numberofdrops

the

number

exceeds

and

the

VOLUME

flow problem.

If

too

much

pumping

from

being

air

from

leaves

air

in

the

sounds,

depending

the

air

forced

being

the

air

to

of

is

Technical Service Manual

4-1

430-01858-003 (Rev. 5/95)

Section4THEORY

4.1.2

OF

OPERATION

FLOW DETECTOR

The

flow

detector

providesacomparative

rateiscorrect
clean,

often

Useofthe

Table 1-3,

4.1.3

dry,

and

tracedtodirtyorimproperly

flow

Series

ALARMS

The

operational

messages

pump.

4.1.3.1

AUDIBLE

are

performs

The

flow

correctly

detectorismandatory

Specific

failures

displayed

ALARM

dual

valuetothe

detectorisphotoelectric.Itis
mounted

Features

described

on

functions:itindicates

control

on

theIVset

placed

-Model 4 Series).

throughout

the

VOLUME DELIVERED

logicsothe

flow detectors.

in

some

thereisfluid flowinthe

essential

drip

chamber

applications

Section 4

pump

cause

display

can

determineifthe

that

the

flow

assembly.

and

optionalinothers

an

alarmtosound.

on

the

Flow

front

line,

and
flow

detector

alarms

panelofthe

be

are

{see

Alarm

^J

RefertoFigure 9-14,

is

generatedbythe

The

piezoelectricalarm

Q6isactivated.

Power

Supply

piezoelectric

transducer

Q6isturned

PWA Schematic, Micro

alarm

producesa

on

by

piezoelectric alarm transducer signals

by

interrupt

RECHARGE position.

ALM.

alarm

4.1.3.2

NURSE-CALL

Referto Figure9-14,

is

activated

switchisin
and

initiate

actively

low de-energizes

4.1.4

NUMERIC

request

level

whenever

the

LOCK/ON

(INTT*).

high

RSTatpin5of

switch

ALARM

Power

The

the

Kl

AND

(IRQ)

The

whenever

piezoelectricalarm

on

the

backofthe

SupplyPWASchematic, Micro

the

Kl

nurse-call

position.

purposeofIN1T*

U7B oranactively

nurse-call

BAR

relay,

DISPLAYS

transducer,

the

signals

AUDIO,

the

locatedonthe

2.7

kilohertz(kHz) frequency after

TONE

AUDIO

main

2, and AUDIO 1. Q6 is turned

control switch is

transducer

pump.

relayisde-energized

Kl

is controlledbysignals

is to drive

Kl

high

NCALLatpin6of

causinganalarm.

4/Model4.The

sideofthe

or

reset

(RST)

volume

4/Model4.The

when

is controlledbythe

while

nurse

the

power is

audible

clamp

transistor

to

produce

in

the

LOAD/OFF

nurse-call

the

master

call (NCALL),

turned

U7B

while

alarm

casting.

the

off

AUD.

alarm

control

RST,

on.

An

INTT*

is

^J

RefertoFigure

Micro 4.

DELIVERED,

seven-segment,

430-01858-003 (Rev. 5/95) 4 - 2 LifeCare and HomeCare Model4 Series

There

9-11,

Display

are

VOLUME

plus

decimal, LED display.

PWA Schematic, MDL4,orFigure

four

numeric

DELIVERED,

displays

and

9-12,

Display

used

in

the

pump:

DELIVERY

The

LifeCare Micro LED display

RATE.

PWASchematic,

DOSE

Each

LIMIT,

display

DOSE

contains

is

an

a

extra
receive

The

bar

are

backlighted

The

legends

only)

DET.

4.2

digit

for

input/output

display

REMOTE,

are

each

contains

displaying

data0(IODO)

provides

by

two

backlighted

four

LEDs

decimal

points.

Each

through

colored

LED

bars,

backlighting.

yellow

and

OPERATING (Model 4

byayellow

andisbacklighted

bar

LED

display

IOD7.

The

red,

respectively,

and

4H

containing

byared

legends

only),

four

bar.

4.2

EXTERNAL

INTERFACE

sharesacommon

BATT

LEDs.

(DS4)

and

contain

and

PIGGYBACK

The

and

two

legend

PORTS

data

bus

LOW

(DS5)

LEDs

each.

(Model 4P

NO FLOW

to

EXTERNAL

External

the

System

Micro

(ACC.)

Additionally,

(I/O)

Series

interface

4.2.1

ACC

ACC.

supply
of

the

names,

The

stopping

that

stage.

pumpingisinhibited.

pump

interface

pump

and

are

Interconnect

4/MDL

4 (International).

connector

certain

connector

Case

ports

JlOl,

Types

follows.

CONNECTOR

connector

PWA

pump.

and

RATE1*and

and

correspond

As

enters

J23isa

connector

Table

descriptions.

starting

inputs,

the

ports

showninFigure

J23,

and

4-1,ACC. Connector

RATE

with

when

failure

INTERFACE

on

the

Model4Series

9-2,

Schematic,

Micro

External

nurse-call

pump

versions

an

RS-232

I/O

Capabilities). A

I/O

J23

12-pin,

J16.

2*

the

each

RATE1*and

When

mode.

male

The

ACC.

signals

pump.

As

incremental

only

System

4/MDL4;and

Interconnect

interface

connector

are

equipped

port,ora

descriptionofModel4infusion

connector

connector

J23

PinArrangement,

are

bidirectional

outputs,

RATE1*and

delivery

RATE2*are

oneofthese

PORTS

infusion

J21,

withanRS-485

20-mA

that

allows

step

held

rate

pump

Figure

ports

include

and

I/O

provides

external

and

(32

below

signalsisheld

are

Schematic,

9-4,

Interconnect

the

flow

detector

Dataway

port

(refer to

accessto7

monitoring

provides

provide

an

RATE2*are

per

cycle)

0.5

volt

located

Model

following:

Table

pinsonthe

pin

external

low-going

during

direct

below

on

the

4P; Figure

Schematic,

accessory

connector

input/output

1-2,

pump

and

numbers,

means

the

pumping

current

0.5

VDC,

back

of

9-3,

J22.

Model

external

power

control

signal

for

pulses

(VDC)

the

4

The

CYCLE* signalistransmittedatthe

The

ALARM*

Technical

signal

Service

Manual 4 - 3

goes

low

when

completionofeach

the

pump

enters

the

alarm

pumping

stateorthe

cycle.

failure

430-01858-003

mode.

(Rev. 5/95)

Section4THEORYOFOPERATION

Table

4-1.

ACC.

Connector

J23

Pin

Arrangement

ACC.

Diagram

7^"

~~^S

CONNECTOR

94F18027

Pin

1

2

5

6

8

9

10

11

12

Signal

+5V

AUDIO

GND

BATTERY

MONITOR

CYCLE*

RATET

RATE

DOSE
COMPLETE*

ALARM*

Name

2

2*

Description

Digital +5 VDC

supply

Audible alarm signal

Digitalground

Battery

Pulse

completion of

monitor

transmitted

at

each

cycle

External bidirectional

start

and

stop

control

External bidirectional

start

and

stop

control

Dose

complete alarm signal

Alarm signal

the

pumping

pump

pump

4.2.2

NURSE-CALL

The

nurse-call

is

used

to

nurse-call

An

alarm
PWAisenergized.
(NO)ora
For NC

reconnection.

4.2.3

operation,

FLOW

The

flow

on

the

power

more

information.

jack

clear

the

system

signalissent

normally

See

DETECTOR

detector

connector

supply

JACK

J21isa

drip

when

the

from

J21

standard,

shield

on

pumpisinanalarm

the

pump
Dependingonthe
closed

Section

the

(NC)

power

4.1.3.2,

switch

supply

CONNECTOR

J22isa

PWA

connector

two-contact

the

pump.

A

phone

switch

state.

when

the

nurse-call

hospital

nurse-call

system

configurationisrequired.

PWA

must

be

returnedtothe

Nurse-CaR

Alarm,

for

J22

7-pin

male

connector

J16.

See

Section

4.4.1,

jack.Aright

closure

relayKlon

software,anormally
The

more

information.

that

provides

Flow

angle

activates

the

factory

settingisNO.

factory for

accessto4

Monitoring

phone

the

power

System,

plug

hospital

supply

open

jumper

pins

for

430-01858-003 (Rev. 5/95)

4-4

LifeCare

and

HomeCare

Model4Series

4.2.4

4.2

EXTERNAL

INTERFACE

PORTS

>|$g^/

RS-485

Certain

Dataway

Capabilities, for a

capability.

The

RS

and

receive information between a

external

nurse

canbeobtained

limits

A

universal

driver

Section

To

use

modeisaccessed

mode,aDataway

withoutacommand

command,

makes

be

disabled.

remote

DATAWAY

versions

I/O

connector

485

Dataway

host

device

station

can

PWA.

4.5.2,

the

certain

operations.

console.

be

transmitted

asynchronous

Foradetailed

Motor DriverPWA,

Dataway

or

any

that

See

of

the

listofthe

I/O

suchasa

from

the

interface,

from

timerinthe

to

other

continued

Section

I/O

Model 4

JlOl.

connectorisa

Information

pump

to

transmit/receive

the

external

the

pump.

command

4.3.1,

Series

See

Model 4 Series

hospital

through

the

pump

description

and

the

pump

pump

fromaremote

interactive

ModesofOperation,

CONNECTOR

infusion

Table 1-2, Model 4

bidirectional,

maximum

patient

such

as

the

from

the

(UART) device,

of

Section

mustbeoperatinginthe

device

through

producesaDataway

Each

time

communications

pump

infusion

serial

of 31 electrically

data

management

status,

I/O

the

4.5.2.4,

alarm

port.

host

device.

operation

RS-485

the

the

pump

device,

for

JlOl

are

equipped

Series

pumps

data

history,ormalfunction

Information

Ul,ismounted

Dataway

I/O

alarmifone

receives a

the

timerisreset

with

additional

Case

with

interface

connected

systemora

suchasratesordose

of

the

remote

interface.

the

external

information

Dataway

Port

reset

with

an

RS-485

Types

RS-485

usedtotransmit

pumps

and

Dataway

and

computerized

on

the

UART,

mode.

When

minute

The

in

remote
remote

passes

Dataway

This

function

device

on

cannot

local

I/O

an

codes

motor

see

timer

and

Note:

and

number

to

4.2.5

For

Interface Manual,

430-01761

any

external

RS-232

This

technical

4.2.6

20-MA

This

technical

detailed

device.

I/O

PORT

service

I/O

PORT

service

Dataway

UfeCare

-XXX.

manual

manual

This

technical

information,

Model 4 Series Infusion

manual

does

does

shouldberead

not

support

not

support

the

the

see

the

Pumps

before

RS-232

20-mA

Technical Specification Guide

RS-485

connecting

I/O

port.

I/O

port.

Dataway,

the

Dataway

Manual

port

V%r>

Technical

Service

Manual 4 • 5

430-01858-003

(Rev. 5/95)

Section4THEORY

4.3

OF

OPERATION

OPERATIONAL

This

section

the

data

4.3.1

MODES

The

Model4Series

1.

2.

3.

4.

5.

6.

Certain

by

the

pump.

describes

retention

function.

OF

OPERATION

infusion

Load/Off

Self

Local

Remote

Battery

System

recharge

test

control

control

discharged

failure

modesofoperation

See

Table4-2, User Controls

the

DESCRIPTION

six

modesofpump

pump

are

has

user

six

controlled.

and

operation,

the

silence/ASK

modesofoperationasfollows:

Other

OperatingModes, for

modesofoperation

additional

function,

are

controlled

information.

and

User

Control

LOAD/LOCK

control

DELIVERY

RATE

set

switch

volume
delivered

CLEAR

switch

DOSE

LIMIT

set

switch

Dose

LIMIT

ON/OFF

CLEAR

switch

Table

Load/

Off

Self

Test

X X X

4-2.

Reset

X

X

D

X

User

Local

Controls

and

ModeofOperation

Control

Operate

X X

Alarm

Operating

Remote

Control

Modes

Battery

Discharged

X X

System

Failure

X

START
switch

RESET

switch

430-01858-003 (Rev. 5/95)

X R X

X X X

4-6

LifeCare

and

HomeCare

Model4Series

User

Control

Load/

Off

Table

Self

Test

4-2.

Reset

User

Local

Controls

and

ModeofOperation

Control

Operate

Alarm

Operating

Remote

Control

4.3

Modes

OPERATIONAL

Battery

Discharged

DESCRIPTION

System

Failure

SILENCE

switch

Audible

level

switch

Occlusion

pressure

selector

switch

Set

type

switch

(Microonly)

Note:

during

4.3.1.1

X =

reset

LOAD/OFF

To

enter

the

RECHARGE.

mode:

X X

X X X

X X X

active

state;

time-out

RECHARGE

pump

The

load/off

following

D =

alarm.

X X X

X X X

X

X

active

only

when

MODE

recharge

conditions

mode,

occur

X X

dose

turn

when

X X

control

the

main

the

pumpisin

function

X

X X X

X X

X X

control

is ON; R =

switchtoLOAD/OFF

the

load/off

active

recharge

only

•

Pump

Q

Displays

•

Cassette

Q

Mechanism

•

Nurse-call

Q

Dataisretained

The

following

Q

Failure

Q

Current

•

Dose

•

Audible

Q

Audible

•

Pump

additional

ceases

operation

and

legends

clamps

and

pivot

alarm

as

events

monitor

alarms

limitisenabled

alarm
alarm

retains

occur

is

and

is
is

operating

information)

are

not

illuminated

plunger

shroud

armisraisedtoits

is

disabled

specifiedinSection

when

the

pumpisin

tested

failure

enabled
silenced

or

messages

disabled

or

disabled

and

history

are

highest

4.3.3,

are

data

unlocked

position

Data

the

load/off

cleared

for

for

for

Retention

four

hours

cassette

cassette

recharge

insertion

or

removal

insertionorremoval

Function.

mode:

[see

Section

4.3.3

for

Technical

Service

Manual

4-7

430-01858-003 (Rev. 5/95)

Section4THEORY

4.3.1.2

OF

OPERATION

SELF

To

TEST

enter

performs

• All

Q

•

data

been

RAM

Failure

• All

illuminated

Q

Audible

•

Critical

If

any

self

See

Table

successful,

4.3.1.3

LOCAL

MODE

the

pump

the

reached
and

monitor

numeric

data

test

self

test

mode,

following

except

ROM

operationsinself

history

are

test

dataisinitialized if

tested

status

elements, message display elements,

alarm

fails,

is

activated

integrityischecked

the

pump

enters

6-1, Alarm Codes, for a

the

pump

CONTROL

automatically

MODE

turn

the

is

checked

the

system

listoferror

enters

test

main

mode:

failure

the

control

the

codes

local

switchtoLOCK/ON.

four-hour

mode

and

control

data

and

front panel legends

andanerror

descriptions.

mode.

retention

interval

codeisdisplayed.

If

all

The

tests

pump

has

are

are

The

pump

mode,

Controls

If

transmits

does

When

Exit

or

Dataway

system

The

The

front

and

the

pump

status

not

permit

the

codeistransmitted,

the

local

by

sendingacommand

I/O

failure,orwhenadischarged

local

control

reset

successful

pressing

the

Note:Ifthe

dose,

operating

etc.),

parameters

enters

and

Operating

has

remote

control

Connector

state

self

test

[RESET]

pump

the

the

local

rear

panel

Modes).

an

RS-485

messages

control

modebyturning

JlOl).

mode

is

user

has

always

The

user

touchswitch.

must

be

should

and

control

mode

touchswitches

Dataway

and

permits

unless

the

from

REMOTE

the

Exit

from

the

battery

three

activity

the

first

state

can

also

stopped

press

critical

the

data

following a

control

I/O

port

connectedtoa

interrogation

remote

host

legendisilluminated

the

main

control

remote

the

host

local

is detected.

states:

reset,

enteredinthe

switch

during

the

operation

[RESET]

storedinRAM

successful

pump

operations

self

remote

from

the

remote

terminal

transmits

switchtoLOAD/OFF

terminal

control

[see

mode

operating,

local

control

pumptothe

for

touchswitch

that

reset

any

reason

first. [RESET] will

would

test.

[see

host

terminal.

instruction

on

the

Section

occurs

and

alarm.

mode

stateatany

(alarm,

otherwise

In

local

control

Table 4-2, User

terminal,

The

pump

code.

pump.

RECHARGE,

4.2.4,

RS-485

automatically

following a

time

change

save

be

lost

it

at

by

of

The

following

•

The

Q

The

representing

approximately

430-01858-003 (Rev. 5/95) 4 • 8 LifeCare and HomeCare Model 4

conditions

pumping

message

occurinthe

reset

mechanismisstopped

panel

the

1.3

displays

volume

seconds

two

deliveredinmilliliters.

state:

and

the

alternating

cassette

messages:

plungerisretracted

RESET

Each

message

and

is

displayed

a

number

for

Series

•

The

Q If

flashes

•

All

The

operating

to

parameters

The

following

•

The

•

The

Q

All

touchswitches

pressure

active

Q

All

The

alarm

the

alarm

main

alarm

alarm

the

alarms

pump

user-set

front

alarm

soundsabeep

reset

state

RESET,

are

stateisthe

setbythe

conditions

mechanism

panel

select

circuits

exceeds

and

prevented

delivery

and

switch,

stateisentered

stateisaccomplished

control

state:

switch

to

onceaminute

five

minutes,

sounds

normal

user.

occurinthe

except

pumping

The

drives

the

operating

the

rateiscontinuously

controls

the

are

active

when

LOAD/OFF

main

and

are

control

the

an

alarm

by

pressing

RECHARGE.

the

pump

alarm

the

reset

timer,

state

during

state

canbeentered

operating

cassetteatthe

state:

indicatedonthe

inhibited

switch.

set

type

except

The

switch

conditionisdetected

the

[RESET]

automatically

cassette,

which

delivery

the

audible

(Micro only)

touchswitch

The

following

4.3

and

the

pump

only

rate

delivery

[RESET]

level

by

conditions

OPERATIONAL

enters

system

operates

from

setbythe

rate

and

switch,

on

the

the

pump.

orbyturning

DESCRIPTION

the

alarm

failure

according

the

reset

user

display

[SILENCE]

the

occlusion

back

panel

Exit

occurinthe

state,

alarms

state.

are

from

the

•

The

rate,orit

•

The

pumping

delivery

mechanism

canbestopped,

rate

display

can

either

depending

flashes

either

L zeros, as requiredby the alarmtype

• If

other

display

•

The

•

The

Q

The

•

The

[SILENCE]

4.3.1.4

REMOTE

The

remote

pump

models

control,

controls
touchswitches.

[PIGGYBACK]

alarm conditions

shows

nurse-call

alarm

[SILENCE]

message

all

alarmsinsequence

system

soundsapattern

touchswitch

display

touchswitchispressed,

CONTROL

control

the

REMOTE legendonthe

canbeused:

mode

equipped

The

touchswitches

with

the

[DOSE

occur

signals

shows

that

is

activated

either

before

MODE

canbeentered

the

RS-485

front panel is

main

control

LIMIT],

(4P only)

[DELIVERY

are

switch,

drive

the

on

the

alarm

the

number

the

existing

an

alarm

the

the

only

Dataway

inactiveinthe

condition

so

that

appropriate

appropriate

from

I/O

and

RATE],

cassetteatthe

type

representing

conditionisreset,

exists

the

alarm

can

alarm

response.

the

local control

port.

When

illuminated

the

[RESET],

remote

and

[LIMIT

keep

vein

open

the

KVO

the

be

silenced

indication,

the

only

[SILENCE],

ON/OFF/CLEAR],

control

or,

mode

and

pumpisin

four front panel

and

mode.

(KVO)

rateorall

message

when

only

the

on

remote

[START]

and

4.3.1.5

BATTERY

The

battery

DISCHARGED

discharged

batterypowerand

Technical

Service

Manual

MODE

mode

the

batterypackbecomesdischarged to

is entered automatically

4 • 9 430-01858-003 (Rev.

when

the

pump

the

point where proper operating

is operating on

5/95)

Section4THEORY

OF

OPERATION

power

cannolongerbesupplied.

+7.15VDC.

•

Main

power

Q

History

Q

Pumpisinoperable

Q

Alarm

sounds

• Critical

Exit

from

the

•

Connect

•

Turn

the

pump

mode.

4.3.1.6

automatically

SYSTEM

The

system

mechanical

failure

failure

state

During

supplyisshut

data

memory

data

required

battery

the

pumptoAC

main

FAILURE

modeisentered

or

electrical

and

the

this

modeofoperation,

powerislost

and

all

a

continuous

for

continuing

discharged

(mains)

control

switchtoLOAD/OFF

completesaself

MODE

elements.

peripheral

Battery

discharged voltageisbetween

the

following

conditions

off

communications

tone

pump

and

control

functions

operationiserased

modeisaccomplishedbyperforming

whenever

There

failure

powerorreplace

RECHARGE

test

followinganexit

the

pump

are

two

states

state.

the

battery

and

from

detectsamalfunctioninanyofits

defined

for

+6.85

VDC

occur:

are

suspended

the

following:

pack.

thentoLOCK/ON.

the

this

battery

condition:

discharged

the

and

The

core

Core failure

failureinthe

failure

•

Pump

•

Pump

Q

Nurse-call

•

ASK

Q

Core

Peripheral

conditions:

Q

Malfunctioninthe

•

Mechanical

Q

Failureinnoncritical

•

Short-duration,

•

Any

In

the

stateisentered

microprocessororcore

state:

soundsacontinuous

operation

function

failure

failure

control

peripheral

when

stops

system

error

alarmisactivated

is

inhibited

codeisdisplayed

stateisentered

failure

failure

electric

nonpermanent

overridebythe

failure

state,

the

alarm

when

monitor

circuitry

failure

the

following

failure

circuitry.

monitor

The

tone

(unless

the

microprocessor

circuitry

failureinthe

monitor

conditions

detectsapermanentorlong-duration

following

preventedbythe

conditions

failure)

detects

oneofthe

occurinthe

following

microprocessor

occur:

core

•

Pump

•

VOLUME

Q

Alarm

430-01858-003(Rev. 5/95)

operation

DELTVERED

sounds

stops

display

flashes

MALFUNCT

4-10

LifeCare and HomeCare

Model

4 Series

\sf^y

•

Oneormoreofthe

VOLUME

pressed

Exit

from

the

•

Turn

the

Q

Pump

4.3.2

automatically

DELIVERED

simultaneously

system

main

failure

control

failure

display

codes

when

showninTable

two

touchswitches,

6-1,

modeisaccomplishedbyeitherofthe

switch

enters

to

the

LOAD/OFF

battery

RECHARGE

discharged

mode

4.3

OPERATIONAL

Alarm

Codes,

[SILENCE]

following:

and

DESCRIPTION

appear

[RESET],

on

the

are

SILENCE/ASK

The

[SILENCE]

depending

When

alarms

When

the

for

the

touchswitch

causes

the

Function Messages.

displayed

messages

Touchswitches

[SILENCE]

touchswitch

on

the

pump

one

minute,

pump

aloneorsimultaneously

VOLUME

continuously

are

displayedinsequence

FUNCTION

on

stateofthe

isinan

except

is

in

DELIVERED

Duringanocclusion

alarm

the

while

Table

pump.

low

local

the

Power

the

pump

state,

battery,

or

with

displaytodisplay

front

panel

pressing

the

whichissilenced

remote

control

another

alarm,

the

[SILENCE]

touchswitch

the

message

touchswitchispressed,

when

4-3.

ASK

Condition

on

the

touchswitchisreleased.

Function

Messages

performs

for five

modes,

messages

and

OCCLUSION

oneoftwo

touchswitch

silences

minutes.

pressing

foratleast

the

1.25

listedinTable

pertainingtothe

the

remaining

Messages

PRESSURE

SWITCH

MAX

MID
MIN

POSITION

PRES

PRES
PRES

functions,

all

[SILENCE]

seconds

4-3,

ASK

alarm is

applicable

[SILENCE]

[SILENCE]

[SILENCE][CLEAR]

[SILENCE][RESET]

Technical

Service

Manual

Power

on (Microonly)

Occlusion

Absolute

alarm

pressure

Differential

Amplifier saturation

Power

Malfunction

on

4-11

pressure

SET

TYPE

SWITCH

TYPE

A

TYPEB

ABS

PRES

DIF

PRES

ABS

PRES

SFTWR

MALALMCODE

430-01858-003 (Rev. 5/95)

REV

Section4THEORY

OF

OPERATION

Table

4-3.

ASK

Function

Messages

Touchswitches

[SILENCE][START]

4.3.3

DATA

Critical

touchswitch

Critical

of

dose

of

any

returning

RETENTION

operating

is

pressed

data

includes

function,

other

the

features

main

dataisautomatically

and

all

data

volume

criticaltopump

control

periodisexceeded,orwhen

mode.

History

power

Once

dataisheldinnonvolatile

are

lost,orthe

critical

data

has

pump

been

pumpispoweredonagain.

Condition

Pump

operating

FUNCTION

storedinmemory

the

main

control

requiredtodefine

delivered, delivery rate,

switchtoLOCK/ON.

the

pumpisin

memory

entersamalfunction

erased,

the

switchisturnedtoLOAD/OFF

operation.

either

andisnot

memory

for four

the

modeofoperation,

dose

limit,

dose

The

memory

Critical

the

values

dataiserased

battery

lost

unless

state.

reverttodefault

discharged

Messages

NUMBER

3 BITS = 1 psi (6.9 kPa)

hours

delivered,

hold

AC

OF

BITS

when

the

[RESETI

RECHARGE.

activity

and

state,

the

timeisrestored

when

the

four-hour

modeorthe

(mains)

values,

and

failure

battery

when

state
state

by

the

4.4

MONITORS

Monitors
system,

systems

4.4.1

FLOW

Refer

Interconnect

Micro

sensor),

the

The

voltage

power

usedasan
data

to

4/MDL

motor

flow

supply

bus

and

detectorsinthe

the

pressure

and

circuitry

MONITORING

Figure

Schematic,

4, International

the

drop

driver

detector

pulse

through

PWA.

inputtothe

and

usedasinputtothe

9-2,

signal

PWA.

clips

The

AND

Model4Series

measuring

are

describedinthe

System

processoronthe

onto

the

J22

outputofthe

motor

system,

Interconnect Schematic, Model 4P; Figure 9-3,

Micro

The

the

drip

flow

driver

DETECTORS

infusion

and

the

following

SYSTEM

4/MDL

flow monitoring

detector

PWA,

microprocessoronthe

4; or

power

chamberofthe

connectortothe

drop

detector

whereitis

pump

malfunction

sections.

Figure

system

supply

circuitryonthe

convertedtodata

consistofthe

detection

9-4,

Interconnect

flow

monitoring

circuitry.

Schematic,

consistsofa flow detector (drop

PWA,

and

associated circuitry

administration

drop

microprocessor

set

detector

power

for

and

provides a

circuitryonthe

supply

the

system

unit

(MPU) PWA.

These

System

on

PWA

I/O

is

The

flow

monitoring

fallinginthe

or

other

430-01858-003 (Rev. 5/95)

drip

flow

interruptions.

chamber

system

checks

and

for a correspondence

the

numberofpump

4-12

between

cyclestodetect

LifeCare and HomeCare Model 4

the

numberofdrops

fluid

supply

depletion

Series

\^^y

In

the

Micro

made.

[SILENCE]

This

pump,

selection

touchswitch

the

flow

may

for

detector

be

read

more

than

also

on

checks

the

1.25

which

VOLUME

seconds.

4.4

set

type

switch

DELIVERED

MONITORS

selection

display

AND

by

DETECTORS

has

holding

been

the

Note:

andisan

Series).

4.4.1.1

The

flow

detectorisrequired

optional

accessory

for

for

others

some

versionsofthe

[see Table 1-3, Series Specific Features - Model 4

FLOWDETECTOR

RefertoFigure 4-1, Flow Detector Schematic Diagram.

drops

falling

Ql

through

(not

illustrated).

that

clipstothe

Diodes

through
wiring
phototransistors.

infrared

signal,SNSROUT,

Drop

Signal

within

the

Q3; two diodes, DS1

All

componentsofthe

drip

chamber.

DS1

and

DS2

Q3.

The

resulting

board

(PWB)

and

Whenadrop

energyisreduced,

whichistransferredtothe

Processor).

drip

chamber.

emit

narrow

currents

represent

resultingina

The

flow

and

DS2;

and

flow

detector

beamsofinfrared

are

summedatthe

the

total

infrared

falls

through

corresponding

detector

infrared

reside

the

dropsignal

Model4Series

The

flow

detector

consistsofthree

and

limited

withinapolycarbonate

light

acceptance

toward

outputofthe

energy

infrared

emitted

beam,

current

reductioninthe

processor

infusion

optically

pumps

senses

phototransistors,

angle

filters

housing

phototransistors

photo

from

the

sensor

the

diodestothe

total

amount

Ql

printed

of

output

(refertoSection 4.4.1.2,

Technical Service Manual

4-13

430-01858-003 (Rev. 5/95)

Section4THEORY

OF

OPERATION

!PHOTO SENSOR PWB

CI

0.001

uF

PHOTO

2

(MATCHED)

EMITTER

TIL31

PWB

RED

WHT

Figure 4-1. Flow Detector

Schematic

Diagram

ELECTROSTATIC

SHIELD

X

BLK|_ij^GND"

GRN

|3<SNSR

-p<+5

-|^<LED

P22

OUT

VDC

CATH

94F13005

4.4.1.2

DROP

The

and

interference

SIGNAL

drop signal

rejects

extraneous

(EMI),

PROCESSOR

processor

splashes,

accepts

signals producedbydrops

signals produced

and

condensationon

signalprocessorcircuitryisresidentonthe

components:

amplitude

4.4.13

CURRENT

RefertoFigure9-14,

modulator
by

the

2.38

430-01858-003 (Rev. 5/95)

current

threshold

amplitude

detector.

AMPLITUDE

Power

consistsofU6D,

kHz

clock

signal,

modulator,

MODULATOR

Supply PWASchematic, Micro

and

transistor

DSLDCK. DSLDCKisbufferedbyU6D

fallinginthe

by

external light sources, electromagnetic

the

power

wallsofthe

supply

PWA

synchronous

drip chamber.

and

consistsofthe

demodulator,

4/Model4.The

Q3.

The

current

amplitude

drip

current

modulatorisdriven

priortoturning

4-14

LifeCare

and

HomeCare

chamber

The

drop

following

and

drop

amplitude

on

Model4Series

4.4

MONITORS

AND

DETECTORS

transistor

through

return

LED

percent

for

phototransistors

abilityofthe

4.4.1.4

SYNCHRONOUS

RefertoFigure 9-14,

demodulator

R18,

associated

DEMCLK

DSLDCK

is

delayedbyabout

active, flow

Q3

resistor

lineasthe

CATH

duty

provides

cycle.

systemtoreject

consistsofa

integrated

components.

clocks,

hasa25

detector

without

R12

signal,

circuit

which

percent

loading

the

priortobeing

LED

CATH (refer to Figure

peak

currents

When

Ql

transistor

through

extraneous

DEMODULATOR

Power

Supply PWA Schematic, Micro

bandpass

(IC)

U3A,

The

synchronous

are

both

duty

53

milliseconds

diodes

DSl

clock

line.

transferredtothe

of

approximately

Q3isoff,

Q3 to reduce gain

infrared

filter

that

holding

2.38

cycle

and

capacitor C3,

kHz

while

(ms)

with

DS2

are

Figure 4-1, Flow DetectorSchematic Diagram).

is

closed.

approximately53ms

at

pin2or

capacitor

With

pin10of

C3.

this

clock

before

U3A, allowing

phasing, flow detector diodes

the

photo

sensor

SNSR

OUTtoreach

The

output

4-1,

photo

Flow

100

of

transistor

detector

Detector

milliamperes

resistorRl1

non

linearity,

light.

4/Model

includes

demodulator

signals

DEMCLK

capacitors

and

buffer

is

that

differinphase

hasa12.5

driven

respecttoDSLDCK.

enabled

Whenever

PWA

and

pin4of

DEMCLKisactive,

DSl

and

outputatP22-3

peak

provides

amplifier

percent

Whenever

DS2

(SNSR

value

before

Q3isconditioned

diodes

Schematic

DSl

(mA)

Diagram).

witha25

a low-level

which

4.

C6

enhances

The

synchronous

and

C8,

U1A

by

the

DSLDCK

and

duty

duty

cycle

DSLDCK

U3Aisopen

pin1of

are

turned

OUT)issampled

being

and

DS2

current

resistor

with

cycle.

that

(refer to

U3A

on

fully

stored

the

its

and

is

in

4.4.1.5

DROP

AMPLITUDE

RefertoFigure 9-14,

threshold
and

associated

reflections

80

millivolts

Resistors

and
an

integrator

for

the

is

rejected.

Upon

microprocessor
the

microprocessor.

approximately

splashes

4.4.1.6

detector

and

Rl,

the

pulse-width

signaltobe

acceptance

from

components.

splashes

(mV)

that

R2,

and

whose

accepted.

thatadrop

128

the

main

THRESHOLD

Power

provides

Supply PWASchematic, Micro

pulse-width

The

and

accepts

exceed3ms.

R15

formareference

discriminator

output

voltage

Any

ofasignal,

has

The

microprocessor

ms.

DRPAK*

drop

from

drop

U1D.

must

signal

drop

been

resets

setting

discrimination

amplitude

signals

withaduration

voltage

Diode

exceed

thatisless

latch

detected.

acknowledges

U6A.

The

U6A

again

DETECTOR

4/Model4.The

and

threshold

divider

CR1,

2.54

detector

resistor

VDC

for

(the

thanorequaltothe

U6A

outputs

The

DROP

lineissampled

DROPbyissuing

128

ms

pulse

and

being

drop

amplitude

consistsofU1C,

rejects

above

both

R3,

the

the

and

threshold

capacitor

reference

2.54

DROP

to

U1D,

short-duration

comparator

voltageofU1D)

VDC

indicate

every5ms

DRPAK* for

widthofDRPAK*

countedaslegitimate

U6A,

value

of

U1C

CI

form

reference

to

the

by

prevents

drops.

^Hisi/

FLOW

Refer

detected
connected,

Technical

DETECTOR

PRESENCE

to Figure 4-1, FlowDetectorSchematic

by

then

Service

measuring

the

Manual

the

voltage

LED

levelofLED CATH

cathode

DETECTION

Diagram

(LED CATH)

equals+5VDC

4-15

The

presenceofthe

voltage

level. If

minus

flow

the

flow

the

combined

430-01858-003

detector

detector

voltage

(Rev. 5/95)

is

is

Section4THEORY

OF

OPERATION

dropofDSl

CATHisapproximately0VDC.

The

voltage levelofLED CATH is

located

4/Model

CATH is greater

levelofLED

4.4.1.7

FLOW

The

microprocessor

the

number

expects
depends

typeByields

position,

numberofdrops.

of

drops.

a

countof12, or

drops

exceeds

cycles

flow,

the

either

of

flow condition,

the

flow

and

on

the

DS2. If

motor

the

driver

4 or Figure9-10, MotorDriver PWASchematic, Series 4). If

than

1VDC,

CATHisless

than1VDC,

ALGORITHM

U3onthe

of

one

upon

the

The

exceeds

pump

alarm.

drops

1/15

the

one

MPU

drop

the

the

stops.

detectedinthe

ml

drop

per

set

type:

set

drop

per

pump

divides

For

and

when

the

set

typeB,the

cycle

the

pumpisstopped.

numberofpump

numberofdropsbymore

For

low

the

alarmissounded,

flow detector is

measuredbyU3,

PWA

(refer to Figure 9-9, Motor Driver PWA Schematic, Micro

then

the

flow detector is

MPU PWA

drip

pump

cycle. For

typeAyields

cycle (15

actual

counters

number

effective

are

cyclesbymore

flow,

the

not

connected,

then

the

flow

retains

chamber.

countofthe

the

four

drops

drops/ml).Ifthe

of

drops

numberofdrops

resettozero

If,

than

four, a flow

pump

cyclestothe

and

the

then

the

analog-to-digital (A/D)

assumedtobe

detectorisassumed

numberofpump

For

Models

Micro,

per

the

numberofdrops

pump

set

by

fourtoascertain

equals

when

eitherofthe

during

the

than

four, orifthe

countto12,

alarmisgenerated.

KVO

preset

message

display

the

voltage levelofLED

the

voltage levelofLED

present;ifthe

to

be

4, 4P,

and

cycle (60

type

switchisin

the

counters

4H,

drops/ml);

actual

the

numberofpump

minimum

indicates

converter

voltage

absent.

cycles

the

expected

an

effective

number

reaches

number

For

rate. For

the

nature

and

MPU

the

high

set

A

of

For

the

drops

assures
drops

the

[START]

check

Micro, a flow

are

detected

that

the

detected.

touchswitch

cassette

alarmissoundedifless

The

alarm

during

numberofdrops

also

any

one

occursifthe

pump

expected for

numberofdropsiscounted

has

been

pressed.

than

cycle. In

dropisexpected;analarmissoundedifmore

4.4.2

PRESSURE

The

pressure

The

pressure

sensor.

MEASURING

measuring

measuring

system

system

SYSTEM

measures

consistsofthe

pressure

set

type

switchisin

addition,

the

set

type

correspondstothe

during

For

three

than

the

first

set

type

A, four

drops are detected. For

two

drops

within

pressure

the

sensor

theAposition

the

Micro

complete

drops

are

detected.

cassette

PWA

and

microprocessor

number

pump

and

and

cycle

are

expected;

set

typeB,one

distal

the

tubing.

pressure

no

of

after

a

430-01858-003 (Rev. 5/95)

4-16

UfeCare and HomeCare Model 4

Series

4.4.2.1

PRESSURE

The

pressure

in

the

cassette

fluid

through

tubing.

differential
pressures
exceeded,

MicroprocessorU3on

an

SENSOR

sensor

plunger

the

cassette

pressure

encountered

occlusion

PWA

PWA

measures

arm.

The

strainisproportionaltothe

outlet

(difference

during
alarmisgenerated

valve,

the

MPU PWA

between

delivery).

(-004

the

AND

pressure

and

therefore

monitors

the

pressure

When

and

HIGHER)

within

the

absolute

pump

4.4

MONITORS

the

cassettebysensing

force

requiredtomove

reflects

both

requiredtoinitiate

operation

the

the

absolute

differential

ceases.

pressureinthe

AND

DETECTORS

pressure

delivery

pressure

the

strain

distal

and

limit

the

the

and

is

Pressure

electrical
gauge

RefertoFigure 9-5,

and

PWA

andRlbalance

Resistor
7

hertz

output

pressure
and

differential

4A2.2

PRESSURE

The

mounted

of

the

sensor

the

temperature

sensingisaccomplished

resistanceofthe

connectstothe

+STROUT,

stable

R2

(Hz) for

to

hold

the

amplifier,

-STROUT

sets

noise

the

desired level.

filter

on

circuitry

output.

SENSOR

pressure

pressure

PWA formanactive

cassette

measuring

onabeam

sensor

pivot

compensation.

strain

pressure

Pressure

full-bridge

Ul.

CapacitorsCIand

and

the

gain

and,incombination

suppression.

the

power

for

stable

system

attachedtothe

PWA.

arm

and

senses

with

a full-bridge

gaugeis350

sensor

Sensor

strain

+STROUT priortoinputatUl,

The

supply
amplifier,

PWA

PWA

PWA Schematic, Micro

gauge

ResistorsR5andR6attenuate

PRESSURE.SIGNAL

PWA. Capacitors

Ul.

(-003

usesadual

endofthe

The

strain gauge

halfofthe

the

bridge

strain

ohms

through

outputs,

C2 filter

with

Resistor

AND

LOWER)

element,

cassette

rosette

circuit

duetopivot

strain

are

gauge

after

activationby+5AN.

a four-wire

transferredtothe

high

capacitor

output

C4

R4

and

90

plunger

and

The

straingauge RM is aligned along

arm

mountedtoa

jacketed

4/Model

frequency

and

capacitor

degree,

4 (Sheet 2).

pressure

noise.

pins13and

C8,

rolls

the

the

PRESSURE_SIGNAL

is

directedtoa two-pole

C5

are

partofthe

C3 are

strain

pivot

arm

and

componentsofthe

flexure.

Resistor

cable.

Resistors

5, respectively.

bandwidth

gauge rosette

R90

beam.

The

The

strain

-STROUT

sensor

R3

sample

partofthe

components

pressure

provides

at

Referto Figure 9-5, Pressure SensorPWASchematic, Micro

Ul

and

U2

and

associated components residing on

gain, chopper-stabilized amplifier for

Resistor R4 provides offset

The

outputofthe

U12B

amplification

converter.
is

4.4.2.3

and

associated

U1onthe

suppliedtoUl

OCCLUSION

for

pressure

components

the

pressure

pressure

by

U4

ALARM

Pressureismeasuredbytaking

stroke

endofthe

and

the

strainatthe

intake

phaseofthe

adjustment

sensor

on

the

topofthe

PWA is transferred to

form a

signal

sensor

power

ALGORITHM

the

difference

pump

the

low-level signal generatedbythe

and resistor R5 controls sensitivity adjustment.

low-pass

beforeitis

PWA

requires-5VDCaswellas+5

supply

PWA.

between

pump

cycle).

The

the

pressure

appliedtothe

stroke

differenceisduetothe

4/Model

pressure

U12Bonthe

the

strainatthe

(that

is,atthe

filter

4 (Sheet 1). Amplifiers

sensor

that

motor

beginning

the rubber diaphragm as the plunger moves up and down, and the

Technical

Service

Manual

4-17

430-01858-003

PWA form a high

strain gauge.

power

provides additional

bottomofthe

supply

driver PWA

VDC.

The-5VDC

PWA.

A/D

pump

andatthe

passive

force

stretch

caused by

(Rev.

5/95)

of

Section4THEORY

OF

OPERATION

backpressure.

square

inch

[SILENCE]

nominal

stretch

value

and

outputtogive

duetocassette

The

difference is displayed in

gauge (psig))

touchswitches

for

the

differenceis62

cassette

the

absolute

and

mechanism

outlet

(34.5 kilopascals (kPa)) for

The

pressure

been

pressedisstoredasthe

from

the

differential

The

differential

back

panel.

the

[SILENCE]

differential

(55.2 ±

pressureisgreater

pressureisgreater

displayed

differential

touchswitch

measured

pressures

pressure.

The

pressure

20.7

kPa),

and

pressure)

for

measured

pressure

setting

touchswitch

limit

and

than

than

an

occlusion

canbecalledupto

more

than

during

MIN

in

the

VOLUME DELIVERED displayifthe

are

pressed

simultaneously

bitsat0.0

valve

opening

pressure

pressure)

reading.

differences,

absolute

the

pressure

second

intake

reference pressure.

during

the

third

limitisselectedbythe

may

be

read

from

the

for longer

than

to 12 ±4 psig(82.8 ±

pressureis4 ±2

the

limit

15 ± 5

alarm

setbythe

psig

(103.5±34.5

will

occlusion

result

the

1.25

seconds.

bits

(approximately three

while

the

psig (due

onlytothe

andissubtracted

The

reading

resultinginan

hasagreat

overall

readings.

phase

and

occlusion

after

This

reference

subsequent

pressure

the

VOLUME DELIVERED

1.25

seconds.

27.6

kPa), MID

psig

(27.6 ±

kPa),

The

typeofocclusion

message

pressure

displaybypressing

pressure

13.8

switch,orif

an

OCCLUSION

bits

per

pound

[START]

pump

is operating.

passive

from

diaphragm

the

amplifier

dealofvariability

toleranceof± 5

[START]

touchswitch

pressureissubtracted

pump

cycles to give

switch

locatedonthe

displaybypressing

MAX

pressure

sets

setsitto 8 ±3

kPa). If

the

message

alarm

differential

the

measured

(absolute

the

[SILENCE]

will

per

and
The

psig

has

the

the

psig

be

or

An

absolute

0.175

LOCK/ON,orduring

4.4.3

VDC

MALFUNCTION

The

malfunction

stagesofpump

LOCK/ONorLOAD/OFF

Alarm

by

pressing

malfunction

RAM

for

4.4.3.1

INTERNAL

When

the

occlusion

or

greater

detection

activity:

and

failure

the

alarmissounding.

use

with

RAM

main

control

alarm

than

pumping.

during

RECHARGE,

codes

are

[SILENCE]

the

RS-485

TEST

switchisturnedtoLOCK/ON,

occursifthe

4.4

VDC

either

DETECTION

circuitry

listedinTable

and

Dataway

the

[RESET]

Alarm

detects

self

and

I/O

and

RAMisexercisedbywritingacheckerboard

and

reading

is

foundtobe

the

inverseofthat

defective,amalfunction

pattern

to verify

alarm

pressure

when

CIRCUITRY

hardware

test

when

during

6-1,

Alarm

touchswitches

failure

port.

patterntoall

that

occurs.

amplifier

the

main

output

control

malfunctionsatany

the

main

control

normal

operation.

Codes.

These

simultaneously

codes

every

are

also

every

byteinthe

bits,

readingitback,

bit

is fully functional. If

remains

less

switchisturned

oneofthree

switchisrotated

codes

are

called

while

storedinthe

microprocessor

then

than

to

to

up

the

external

writing

any

bit

430-01858-003 (Rev. 5/95)

4-18

LifeCare

and

HomeCare

Model

4 Series

4.4.3.2

ROM

After

and

do

4.4.3.3

POWER-UP

Refer

Micro

TEST

the

RAM

test,acomplex

compared

not

match,

againstachecksum

the

ROMisdefective,

TEST

to

Figure

9-7,

MPU

4/Model4.ResistorR2and

whichisreadatpin4of
after

pump

four-hour

(e.g.,

sets

critical

ifitis

initializationtodistinguish

data

retention

the

delivery

dataisleftasis.

still

low,amalfunction

mathematical

PWA

Schematic,

capacitor C8 form

microprocessor

period. If

rate,

turns

the

Following

alarm

checksumisgenerated

storedinROM.Ifthe

andamalfunction

Series4or

the

the

the

occurs.

buffer
between
PWR UP

dose

external

U8.

The
a cold
lineislow, U8

limit

off, etc.).Ifthe

RAM

test,

4.4

MONITORS

using

calculated

alarm

Figure

power-up

and

occurs.

9-8,

(PWRUP)

MPU

stored

PWA

PWRUPlineistested
powerup

andarestart

initializes

PWR

UP

lineishigh,

the

PWRUPlineistested

AND

DETECTORS

all

ROM

checksums

Schematic,

detector

immediately

during

all critical

bytes,

signal

the

data

the

again;

Ni^s/

4.4.3.4

HARDWARE

The

hardware

microprocessorbycomparinga25-Hz

fixed

frequency

significantly

nurse-call

relay,

RefertoFigure 9-13,
comparison,
25-Hz
(the

main

24.4-Hz

(counterAequals

outputatU15

one

counter

the

other

counter

both

inputsofU17B

theJandKinputs

The

outputofU17D

the

process.

If

one

counter

the

time

the

WATCHDOG

watchdog

signal

different,

and

on

derived

the

attemptstorestart

Display

the

four-bit

program

binary

signal

signal)orcounter

Q3A

and

to go low,

(either

(either

other

reaches

are

counter

and

counterAor

the

are

high,

low

producesnochangeinthe

not

only

counterAor

the

display

from

the

hardware

driver

signal

generatedbythe

reference oscillator

watchdog

the

microprocessor.

DriverPWA Schematic,

counter

watchdog

B (WDSTB)

Q4A;

allowing

counterB)has

count

its

outputislow.

clocks

reaches

U16

receives

strobe

(WDSTB)atpin

reaches

counterBequals

the

outputofU17Dtogo

of

12,

its

the

flip-flop,

counterB)has

the

countof12,

PWA

monitors

main

Yl.Ifthe

sounds

Series

the

Q3B

reachedatleast
respective

Clocking

state,

but

also

not

its

a

4. In

the

24.4-Hz

countof12,

and

Q4

the

J-K

and

clears

reachedatleast

respective

the

functionality

program

two

continuous

performing

signalatpin1and

9.

When

either

its

respective

Q4B)ishigh;

high

and

the

countof8bythe

output

the

the

willbehigh.

flip-flop

flip-flop
U16

Q4

output

U18B

countertorestart

the

of

witha24.4

frequencies

tone,

the

sets

frequency

counter

output

causing

clock

U18B. If

while

remains

countof8

willbelow,

the

Hz

are
the

the

the

time

Since

both

reset

by

resulting in the outputofU17Bbeing hi^tiand settingthe J-K flip-flop U18Bto cause the

reset

(RST)

linetogo

through

sounds

microprocessor

capacitor

the

alarm

monitors

MALFUNCTION

in

the

set

state

untilitis

switch

from

LOAD/OFF

oscillatorisoperating

andisoperatingatthe

high

and

CIO,

keeps

tone

continuously,

the

messageifthe

reset

RECHARGEtoLOCK/ON.

properly,

proper

the

RST

linetogo low.

the

motor

RST

RST

by

the

rate,

power

supply

and

activates

line

through

the

lineisfoundtobe

an

INIT

pulse

generated

This

microprocessorissuccessfully

andifeither

fails,

This

resets

disabledtoprevent

the

nurse-call

I/O

input

high.

process

buffer

The

by

U18B

turning

assures

passing

the

motor

willbedisabled.

the

microprocessor

further

alarm.

U8

and

flashes

flip-flop

the

main

that

the

the

sanity

pumping,

The

the

remains

control

reference

check

A

Technical Service Manual

4-19

430-01858-003 (Rev. 5/95)

Section4THEORY

4.4.3.5

OF

OPERATION

HARDWARE

WATCHDOG

TEST

Refer to Figure9-13, Display Driver PWASchematic, Series 4.

tested

are performed, one

toggled to

on

2.5

the

the

the

watchdog

malfunctionifthe

performsnotest,

4.43.6

SOFTWARE

If

hardware

pump

watchdogisan

the

from RAM

passages

alarm

each

time

the

each

cause

the

display

seconds,

a hardware watchdog malfunction,

driver PWA

the

microprocessor

malfunction is stored

data

next

retention

time

malfunction.

period (four hours)

the

pumpisturned

lineislow.

but

WATCHDOG

the

microprocessor

watchdogatthe

at

an

incorrect rate,

independent

motor

flag.

and

The

software

predicts

differs from

sounds.

main

control

time

and

Again,

preparestorepeat

successfully

proper

the

the

detected occurrencesbymore

switchisturnedtoLOAD/OFF

the

pumpisturned

and

subsequent

checks

displayed

off,

the

The

the

software

subroutine,

watchdog

to see

the

has

not

WDSTBisheld

microprocessor

third

time

the

passes

rate,

the

butasoftware

watchdog

andisnot

also performs calculationsonthe

passageofthe

off. During

which

resetting

that

the

next

time

elapsed. If

of

RST

the

the

low long

monitors

the

pumpisturned

cycle

the

next

timeitis

hardware watchdog

malfunction

detects

affectedbythe

motor flag. If

than

The

hardware watchdog is

RECHARGE.

the

first test, WDSTB is

resultsinthe

the

microprocessor.

line

has

been

pump

is activated, as long as

high

frequency

Two

settingofU18B

After

set

high;ifnot,

test

is passed,

enoughtocauseahardware

the

RST

line

and

stores

off,

the

microprocessor

the

the

20

turned

test

causes

condition.

presenceorabsence

predicted

percent, a

off.

and

strobes

the

motor

The

software

rate

information

numberofflag

malfunction

tests

a

the

to

of

4.4.3.7

MICROPROCESSOR

The

microprocessor

outputs

microprocessor
accumulator

is

reasonable

testisnot

malfunction

and

the

that

passed,

condition a

nurse-call

and

certainty

sanity

the

microprocessor

sanity

index

WDSTBisnot

alarm

4.5

ELECTRONICS

OF

The

major

OPERATION

electronics

functions:

Q

Controls

subsystemofthe

delivery

SANITY

check

check

register,

that

consistsofa

must

includes

and

RAM

the

microprocessorisfunctional,

sent,

continuous

sounds.

tone

SUBSYSTEM

Model 4 Series

rateassetbythe

CHECK

setofinstructions

perform

many

causing

of

locations.Ifthe

a hardware

sounds,

front

panel

without

the

commonly

the

motor

infusion

controls

with

known

error

sanity

and

watchdog

power

every

used

checkispassed,

WDSTBissent.Ifthe

25

instructions,

malfunction.Inthis

supplyisshut

PRINCIPLES

pump

performs

inputs

ms.

the

and

The

the

there

down,

following

430-01858-003 (Rev. 5/95) 4 - 20 LifeCare and HomeCare Model 4

Series

•

Provides

•

Processes

•

Displays

•

Provides

•

Allows

•

Furnishes
monitoring

I/O

• Provides

and

The

electronics

PWAs

and

•

MPU

Q

Motor

•

Display

Q

Display

•

Power

•

Pressure

Q

Motherboard

Q

Current

dose

limit

signals

rate,

dose,

audible

capabilitytouse

communications

and/or

port

internal

safety

subsystemofthe

associated

PWA

driver

supply

PWA

driver

sensor

boost

PWA

PWA

PWA

PWA

charger

capability

from

the

flow

volume,

alarm,

indicationofany

the

hospital

between

controlofpump

monitors

and

self-checkingfunctionstomonitor

Model 4 Series

interconnect

PWA

PWA

cabling:

4.5

ELECTRONICS

detector

and

and

status

the

information

alarmormalfunction

nurse-call

pump

and

system

host

operationifthe

infusion

SUBSYSTEM

pressure

PRINCIPLES

sensor

condition

asanalarm

computerorterminal

pumpisequipped

pump

consistsofthe

OF

OPERATION

indicator

for

withaDataway

pump

performance

following

remote

c

The

operationofthe

PWA

(-004

and

Higher),

the

motherboard

operation

(see

functionsofthe

since

they

areanintegral

principlesofoperation

the

alarm

4.5.1

MPU

circuitry,

PWA

RefertoFigure

Micro

4/Model4.The

microprocessor

pump

components

MPU PWA

circuitry,

4.5.1.1

and

PWA

Figure

power

9-7,

circuitry

consists

I/O

ports.

through

MICROPROCESSOR

pressure

and

has

9-6,

supply

for

sensor

Section

no

active

Motherboard

PWA

partofthe

the

remainderofthe

PWAisdescribedinSection

4.4.2.2,

Pressure

components,itis

PWA

Schematic,

are

describedinSection

monitoring

and

PWAs,aswellasthe

follow.

MPU PWA Schematic,

Series4or

MPU PWA provides microprocessor

of

control,

memory

the

connector

circuitry,

MPU

P5. In

PWA

exchanges

additiontothe

memory

CIRCUITRY

Sensor

not

detection

Figure

control

data,

latch

4.4.2.1,

PWA

(-003

and

coveredinthe

Series

4.4,

4).

In

Monitors

functionsofthe

control

9-8,

MPU PWA

for

the

control,

microprocessor

circuitry,

memory

Pressure

Lower).

principles

addition,

and

pump.

switches

Schematic,

pump.

and

status

circuitry,

Sensor

Since

of

some

Detectors,

The

and

Through

with

the

protector

nIIUs/

RefertoFigure

Micro

oscillator

Technical Service Manual

4/Model

Yl.

9-7,

4.

Microprocessor

MPU

PWA

The

microprocessor

Schematic,

U3isa

Series4or

circuitry

complementary

4-21

Figure

consists

metal

9-8,

MPU

of

microprocessor

oxide

semiconductor

PWA

Schematic,

U3

and

(CMOS)

430-01858-003 (Rev. 5/95)

Section4THEORY

IC

that

provides central processing for

OF

bidirectional ports

bus

(BO

through

OPERATION

(PAO

throughPA07 and

B7),anaddress

bus

the

pump. U3 contains 112
PBO

throughPB07), a multiplexed address data

(A8

through

A12), a timer,

bytesofRAM,two 8-bit

and

oscillator

Yl.

OscillatorYlconsistsofthe

and

C4.

Ylisinternally dividedbyfive to provide a 1 MHz

4.5.1.2

MEMORY

CIRCUITRY

5 megahertz

(MHz)

crystal

Y2,

resistor

system

Rl,

and

frequency.

capacitors C3

Refer to Figure 9-7, MPU PWA Schematic, Series 4 or Figure 9-8, MPUPWA Schematic,

Micro

4/Model

2KX

8 IC. U5ismapped

by

the

voltage

operation.

disabledbythe

batteries

VMEM

ROMU9isan8K

U2AandUlA.

4.5.1.3

provides

MEMORY

After

remain

4.

The

memory

the

four

memory

into

(VMEM) signal. VMEM is a 5 VDC signal during normal

hour

circuitry

memory

memory

consistsofRAM

addresses

0(i6) to 3FF(i6)byICUl1A. U5 is

retention period

U5

has

and

passed

MCU PWA,VMEM remains activeatapproximately

charged or AC (mains) power is available.

non-volatile

x 8 IC. U9ismapped

LATCH

retentionofalarm

CIRCUITRY

into

and

memory

malfunction

addresses

The

ROM

U9.

RAM

U5isa

powered

pump

and

system

2.3

VDC as long as

uninterrupted

codes.

from 400(16)to1FFF(16)

power

activity

the

by

is
of

Memory

address-then-data

RAM or ROM,
B7,
byte
multiplexed,
busisthen

or

ROMisenabled,

4.5.1.4

MEMORY

Memory

non-I/O

microprocessor

and

into

latch

the

the

address

memory

the

prepared

PROTECTOR

protector

pumps).

is

low

complete

powerup

RAMCSline (U5-18)

to

the

5

VDC

4.5.1.5

I/O

RAM.

power

PORTS

At

the

decays

providedbyIC

bus

configuration.

order

address

strobe

latch

for

depending

circuitryisprovided

UllB

high

(AS) line (U3-6) goes lowtolatch

U4.

Since

memory

the

read or write operation.

on

and

UllC

and

powerdown.

through

U4.

byte

the

address

the

address

CIRCUITRY

prevent

ICsUlIC

MicroprocessorU3hasamultiplexed

Duringamicroprocessor

appearsonthe

high

order

address

is availableinparallel.

decodingbyICs U2A, U1A,

by

ICs

UllB

the

U5 RAM from accepting data during

During

andUlIB,

powerup,

microprocessor

When

and

and

initiationofpowerdown, REGON goes low,

and

the

microcomputer

shuts

down.

read or

write

busasBO

the

BO

bits

(A8

through

through

The

B7

A12) are

microprocessor

theDSline goes high,

andUl1A.

UllC

(also

PWR

UPislow, forcing

preventing

holding

U2C

any

and

data

CS

highasthe

cycle from

through

address

not

the

RAM

U2D

for

the

transfer

^^

Communication
I/O

ports:

system

430-01858-003 (Rev. 5/95) 4 - 22 LifeCare and HomeCare Model 4

components

the

between

interrupt

with

the

MPU PWA

request

which

(IRQ*)

the

MPU

and

line,

the

and

PWA

pump
the

must

is provided

reset

(RST) line.

communicate

through

Since

cannot

two

eight-bit

manyofthe

dosoat

the

Series

1

MHz

microprocessor

through

The

IOD7

The

configured

and

the

portBlines

are

configuredasan

portAlines

for

IOA5

enables

strobetothe

control

microprocessor.

4.5.2

switch

two

eight-bit

are

are

output

the

hardware

and

frequency,

ports.

designated

eight-bit,

designated

only.

IOAO

microprocessor

watchdog.

the

RST

4.5

separate

input/output

bidirectional

input/output

through

IOA3

address

The

IRQ*

line

is

used

ELECTRONICS

I/O

busses

data

address

form

decoder.

SUBSYSTEM

for

address

(IOD)0through

I/O

data

bus.

(IOA) 0

the

I/O

address

WDSTB

lineisusedtosense

by

the

hardware

PRINCIPLES

and

data

IOD7. IODO

through

bus.

is

the

the

positionofthe

watchdog

OF

OPERATION

are

provided

through

IOA5

IOA4isunused

and

are

microprocessor

main

to

reset

the

MOTOR

RefertoFigure

Driver

an

Dataway

A/D

PWA

Schematic,

converter,

port.

DRIVER

9-9,

Motor Driver PWA Schematic, Micro

andaUART

For

I/O

PWA

Series4.The

whichisonly

addresses,

motor

see

driver

Table

PWA

usedifthe

4-4,

I/O

4/Model4or

consistsofthe

pumpisequipped

Address

Table.

Figure

I/O

address

with

9-10,

decoder,

an

Motor

RS-485

Technical Service Manual 4 - 23 430-01858-003 (Rev. 5/95)

Section4THEORY

OF

OPERATION

Table

4-4.

I/O

Address

Table

Address

00

Device

LEDbars

SHIFT

0-1

and

numeric digitaldisplay drivers

REGISTER

LED

bars:

LOCATIONS:

BIT

LEGEND

0-1 Flow detector inoperative

2 Battery operation
3 Low (battery)

4-5 Piggyback (Model 4P)

4-5 Operating (other models)

6-7

For

numeric displays below: BIT SEGMENT

0 a

1 b

2 c

3 d

4 e

5 f

6 g

Remote

control

7 Decimal point

2 RATE, left

ADULT

most

digit 100 10

MICRO

3 next digit 10 1
4 next digit 1 0.1

5 DOSE, left most digit 1000 100

6
7

8

9 DOSE
10

11

next

digit

next

digit

next

digit 1 0.1

LIMIT,

left

most

digit 1000

100
10

100

next digit 100 10

next

digit 10 1

10

12 next digit 1 0.1

13

14

15

RATE

DOSE

dP

dP

dP

1

01

02

430-01858-003 (Rev. 5/95)

Messages/volume-delivered display

A/D

and

shift register clock

Bits

0-5

Bits

6-7

converter

Bits

0-4

ASCII

Unused

multiplexer

unused

Code

5 A/D converter multiplexerleast significant bit (LSB)

6 A/D converter multiplexer

7 A/Dconverter multiplexermost significantbit

Addr 0 (00000000)

Pressure

amplifier

1 (00100000) Battery voltage / 2

2 (01000000) Drop

3 (01100000)

4 (10000000)
5 (10100000) Digit

sensor

Pressure

Segment

check

LED

select

check

voltage

anode

voltage

6 (11000000) +2.5 V reference
7 (11100000) +5 V analog supply

4-24

LifeCare

and

(MSB)

HomeCare

Model4Series

Table

4-4.

4.5

ELECTRONICS

I/O

Address

SUBSYSTEM

Table

PRINCIPLES

OF

OPERATION

Address

03

04

05

Device

Motor winding

energizer

Bits 0-3 Phasing (1=winding energized)

Miscellaneous

Bits 0 Drop

outputs

(active high

sensor

LEDcontrol (0=on)

unless

1 Nurse-call (1=on)

2

3

Message

Power

display

supply control (1=on)

clear

4 Motor/cassette interrupter LEDcontrol (0=on)

5 RTS flag (SIO port) (Model 4P only)

5
6 Audible

7

Miscellaneous

Bits 0

1

2 Accessory port

3 Accessory port

4 I/OA1signal

Pressure

Accessory

outputs

Accessory
Accessory

sensor

tone

control (1=on)

port

port
port

400

Pk det.

rate

stroke

rate

dose

dose

kHz

bit 1

bit 2

(CMimit

(0=limit

5 Motor voltage off(0=limit reached)
6 Drop acknowledge bit (0=acknowledge)
7 (Reserved for shift register input)

noted)

(0=clear)

reset

enable

(1=reset)

reached)

reached)

(0=enabled)

06

07

Keyboard buffer number1 (1=key

Bits

0
1

2
3
4
5

6

7

Miscellaneous

Bits

0

1
2

Increase
Decrease

Clear
Silence
Reset
Dose

Increase

Decrease

inputs,

1st

Start

Power
Drop-sensed

volume

limit

buffer

switch

up

rate

rate

on/off/clear

dose

dose

signal

3 Motorflag (interrupter) signal

4

5

6 Micro

Watchdog

Accessory

cassette

reset

port

7 Message-display-full signal

pressed)

limit

limit

signal

stop

bit 1

interruptersignal

n||^/

Technical

Service

Manual

4-25

430-01858-003

(Rev.

5/95)

Section4THEORY

OF

OPERATION

Table

4-4.

I/O

Address

Table

Address

08

09

10

Miscellaneous inputs,

Bits 0

1

Digit

Accessory

2 UARTtransmit buffer empty

3

4

UART

Set

1=Set

5 Mode switch ([PIGGYBACK] touchswitch on front panel)

(Model4Ponly)

A/D

UART

Bits 0

6-7

5-7

converter

status

Unused

Unused

output

bits

Date

1 Parity error (PE)

2 Framing error (FE)

3 Overflow error (OE)

4 Transmitter ready (TRE)
5 Transmitter buffer ready (TBRE)

6-7

Unused

Device

2nd

buffer

driver shift registeroutput bit

port

stop

bit 2

reset

bit

type

0=Set

type A (60 drops/ml)

type

B (15 drops/ml)

(Model4Ponly)

(All

other

Models)

received (DR)

^nsT

4.5.2.1

I/O

11-15

11

12

13

14

15

ADDRESS

Unused (Model4Ponly)

UART

UART

receive

transmit

character

character

Display checking multiplexer

Bit

0-2

Bit3unused

Bit

Unused

Unused

segment

4-7

digit driver

driver

check

check

DECODER

RefertoFigure 9-9, Motor Driver PWA Schematic, Micro

Driver

which

lines

The

addresses

U10

devices,

PWA

Schematic,

consists

of

Series4.The

ICs

U8, U9,

IOA0, IOA1, IOA2, IOA3,

four

I/O

address

are

disabled

correspondstoone

listed

in

lines

Table

unless

external

4-4,

and

U10.

and

IOA5

IOAO

through

IOA5isactive

device

I/O

Address

motor

with

driver

These

from

IOA3

which

Table,

PWA

address

the

microprocessor,

define

flow).

Each

the

include

oneof16

I/O

4/Model4or

contains

decoders

the

possible

address

data

bus

the

front

Figure 9-10, Motor

I/O

address

receive

U3,

on

the

the

I/O

five

MPU PWA.

devices.

decodedbyU8,

communicates.

panel

displays

decoder,

address

All

U9,

and

These

and

430-01858-003 (Rev. 5/95)

4-26

LifeCare

and

HomeCare

Mode!4Series

4.5

ELECTRONICS

SUBSYSTEM

PRINCIPLES

OF

OPERATION

keyboard,

buffers,

4.5.2.2

INPUT

RefertoFigure

Driver

buffer

supply

is

placed

microprocessor,

4.5.2.3

A/D

RefertoFigure

Driver

is

an

the

A/D

converter

and

miscellaneous

PWA

DATA

Schematic,

BUFFERS

9-9,

Motor

U8isresetatpowerup

PWA,

the

display

on

the

eight-bit

U3,

and

CONVERTER

9-9,

Motor

PWA

Schematic,

eight

channel,

multiplexed-input,

converterisclockedbya

associated

eight-bit

generatedbythe

controlledbyaddress

channels

circuitry.

bidirectional

three

follow:

The

I/O

A2,

and

multiplexer,

input

buffers

Driver

Series

PWA

4.

Data

andisgatedbyA7*. U7

driver PWA,

I/O

data

off-boardtothe

Driver

Series

400

4.

kHz

PWA

The

signal

eight-bit

data

bus.

most

significant

and

output

and

Schematic,

buffer

the

motor

bus

(IOD0-IOD7)

motor

Schematic,

A/D

eight-bit

generated

output

Input

bitsofthe

UART

output

U7isenabled

driver PWA,

driver

converter,

is

connected

channel

status,

three

latches.

Micro

4/Model4or

when

and

U8

input

and

the

and

transmitted

PWA

Micro

4/Model4or

U3orU5

binary

on

the

output

display

to

the

on

selectioniscontrolledbythe

I/O

address

bus.

enableiscontrolledbyaddress

transmit

Figure

A8*isactive

data

from

front

panel.

to

the

Figure

the

motor

converter.

driver

MPU

PWAbyU4

PWA

Conversion

A9.

The

and

receive

9-10,

low.

the

This

MPU

9-10,

driver

The

through

address

timing

eight

Motor

Data

power

data

PWA

Motor

PWA,

A/D

and

the

is

input

1.

Channel0measures

2.

Channel1monitors

pumpisoperatingonbattery

3.

Channel

4.

Channel3monitors

5.

Channel4measures

6.

Channel5measures

7.

Channel6monitors

8.

Channel7monitors

The

A/D

scaled.

the

4.5.2.4

For

converted

RS-485

On

versionsofthe

motor

Table

driver

1-3,

2

determines

converter

uses

example,

outputisexpressed

DATAWAY

Model4Series

PWA

has

Series

Specific

using

pressure.

the

unregulated

ifaflow

the

settingofthe

the

LED

the

LED

the

power

the+5VDC

the+5REF

an

input

PORT

an

interface

Features

DC

power

pack

andifthe

detector

is

connected.

occlusion

anode

cathode

voltagesofthe

supply

voltagesofthe

reference

reference

lineasthe

reference

voltageof2.5

as

10000000(2).

infusion

with

pump

the

RS-485

- Model 4 Series).

battery

supply.

VDC:

that

have

This

supply

packislow.

pressure

numeric

numeric

voltage

voltage

2.5

VDC/5x256

an

Dataway

I/O

voltagetodetermineifthe

select

switch.

and

and

(2.5

VDC

from

which

RS-485

function

port

Dataway

through

utilizes

( U2 for RS-485 receive/transmit functions during remote operation from a

^"^

Onversions of the

port,

the

UARTdeviceonthe

Model4Series

motor

infusion

pump that do not havean

driver PWA is designated U1

and

is configured for serial

bar

displays.

bar

displays.

nominal).

all

inputs

= 128.

JlOl

host

computer.

RS-485

are

Thus,

port,

the

(see

the

UART

Dataway

Technical Service Manual 4 -

27

430-01858-003 (Rev. 5/95)

Section4THEORY

OF

OPERATION

data receive/transmit functions through

supported

The

RS-485 station ID

buffer

address

into

U3

high.

downconverter.

determine

The

RS-485

a high-speed differential tri-state

RTSCTL signal,

output

on

the

signal.

onlyactive

When

is

active

The

RS-485

identical to U12,

software,

output

RRI

input

the

RRI

by

software.

bits

U4.

This

buffer

15* (the

when

When

address

enabled, U3 provides a data

the

baud

requesttosend

places

outputofU10,

14 (address 14*

This

downconverter

rate

inputtothe

whichisapplied to

latch

U6.

The

inputs

MPU PWA,

The

operationofU12 is

when

RTSCTLishigh,

high.

the

(pin 25)ofthe

(pin 20)ofthe

signalisconnectedtothe

serial

UART

thus

effecting microprocessor controlofU12bymeansofthe

the

pumpisin

the

RTSB

data

lines (SDA

but

with

Ul

transmits

UAKT, or receives serial data from

UART.

(address

data

(RTS)

bits

representing

pin

9) is active low.

UART

lines

bus/line

the

to U6 are

such

that

a transmitting

line is active high;

and

a different external configuration.

serial

The

TRO signal is connected to

RO

the

power

0-5 and

outputofU10,

translates

Ul.

(RTSA

the

the

address

output

the

and

supply

PWA. These functions are

device address parity bit)

These

pin

to U2

status

RTSB)

bitsonthe

data

10, invertedbyU15) is active

which

of

are

connectedtoU12,

outputs

the

I/O

is

station

data

are

an

transceiver. This device is controlledbythe

DI

inputofU12 from

the

I/O

data

bus

bits

the

RSTA

and

RSTB

mode

as instructedbythe

when

SDB) are connected to U13,

datatothe

RS-485

the

output

0-7

from

05

(pin 15)ofthe

the

microprocessor

outputsofthis

host

RTSCTL is low,

the

whichisfunctionally

When

Dataway port

commanded

via

RS-485 Dataway port via

theDIinput

outputofU13.

input

bus

when

then

latched

eight-stage

ID

bits

which

RTSCTL

device

computer.

RSTA

the

TR03

to U13

not

to

to

is

are

line

by

the

and

The

operationofU13iscontrolledbythe

outputofUl

on

the

determines

the

SDA

(pin

24)

MPU

PWAtoserveasa

whether

line

or

on

whichisinvertedbyU15.

U13

is functioning as a serial data transmitting/receiving device

the

SDB

line.

data

ECTRE

ECTREisalso

inputtothe

signal

microprocessor.

from

the

senttothe

transmit

data

The

stateofECTRE

enable

buffer,

153

DISPLAY

Referto Figure9-11, DisplayPWASchematic,

Micro 4.

numeric

numeric

displays,

displays

showninTable4-5, Numeric

(Model4P only), BATT, LOW, NO FLOW DET, and REMOTE (Dataway option only).

The

alphanumeric

by

the

decoder/driver

the

ASCII

address

decodes

lineAlis

them,

line indicates

microprocessor

The

MCLR line is toggled before

and

reset

PWA

The

display

and

are

message

code

for

oneofthe

toggled.

then

that

the

setsamalfunction

the

character

PWA

contains

LED bars.

for

delivery

rate,

and

BarDisplays,are forbacklighting

display (DS2)

Ul.

The

decoder/driver,

eight

The

decoder/driver

drives

the

eight

eighth character

the

address

to

MDL

4 or Figure9-12, DisplayPWASchematic,

an

eight-character alphanumeric display,

The

alphanumeric display is for messages.

dose

limit,

and

dose

consistsof16-segment

characters

16-segment

has

alarmtoassure

from

stores

been

usedinthe

the

I/O

these

charactersinan

displaysata

written. If

that

all

characters

delivered.

the

serial

data

400

this

line does

The

legends PIGGYBACK

LED characters driven

access

bus

each

Hz rate.

have

display is updated (every40ms) to clear

zero.

LED

mode,

time

internal

The

not

go high,

been

The

received.

the

(TRE)

U7,

three
three

bars,

accepts

the

I/O

RAM,

MFULL

the

display

^^

on

as

430-01858-003 (Rev. 5/95) 4 - 28 LifeCare and HomeCare Model 4

Series

The

numeric

PWA

andbydigit drivers

the

microprocessor

The

segment

transistors

for

the

seven-segment

U4,

whichisclocked

J23

Pin Arrangement^. Peak

RN6/RN7.

and

drivers

U2/U3,

RN6

must

bar

displays

U7/U3onthe

every5ms.

found

and

current-limiting

displays

by

the

havealower

on

display

numeric display LEDs, because

the

LEDsinthe

while

because

the

numeric

the

Legend

bars

numeric

displays.

displays remain illuminated for

are

dimmer

for

Table

4.5

ELECTRONICS

are drivenbysegment

display driver PWA. All displays are refreshed

the

display PWA

resistors

is decodedbythe

enable

current

value

the

LEDs in

The

equal

line

is limited to

than

bars

currents.

4-5. Numeric

Micro

microprocessor

DSPLEN*

RN7toequalize

the

bars

remain

and

Bar

SUBSYSTEM

drivers

consist

RN6/RN7.

of

PRINCIPLES

U2/U3/U4

eight-bit

The

drive for

latch

andiswrittentolatch

[see

Table

approximately

the

4-1, ACC. Connector

44

mA

currentsinthe

have higher forward voltages

illuminated

72

microseconds (us) every 5

Displays

Display

4,4H

for 1.3

ms

OF

on

the

by

4P

the

every 5

OPERATION

display

by

U4, drive

bars

and

resistors

bar

and

than

ms,

ms,

PIGGYBACK

OPERATING

BATT

LOW

NO

FLOW

REMOTE

4.5.4

DISPLAY

DET

DRIVER

DS4

DS5

DS6

DS7

DS8

PWA

DS3

DS4

DS5

DS6

DS7

Refer to Figure 9-13, Display Driver PWA Schematic, Series 4.

consistsofthe

drivers, display

segment

4.5.4.1

drivers.

HARDWARE

following circuitry: hardware watchdog,

enable

The

stretcher

following

WATCHDOG

and

sections

display protector,

detail

these

circuitries.

CIRCUITRY

numeric

and

The

display driver PWA

and

numeric

DS3

DS4

DS5

DS6

DS7

bar

display digit

and

bar

display

Referto Figure9-13, DisplayDriver

of

the

hardware

4.5.4.2

NUMERIC

watchdog

AND

circuitry, refer to Section 4.4.3.4, Hardware Watchdog.

BAR

DISPLAY

Refer to Figure9-13, Display Driver

are selected

Technical

Service

using

Manual

digit drivers U7/U3 and shift registers U2 and U8, which are serially

PWA

Schematic, Series 4. For a functional description

DIGIT

PWA

Schematic, Series 4. Numeric

4-29

DRIVERS

CIRCUITRY

and

bar displays

430-01858-003 (Rev. 5/95)

Section4THEORYOFOPERATION

cascaded. IOD7 provides

outputtothe

inputofU8. Each

a Darlington transistor capableofsinking

numeric

the

Before
clocking 16 times

segments.

shift

registerisa logic 1.

the

bar or numeric displays are illuminated,

with

clock gated through U13A

the

illuminate

lines

KO

enabled until

bar displays, numericones

and

Kl

low,bytogglingAltwice while IOD7is held high. The

the

display protector times

the

serialdata inputto U8, which in

outputofthe

The

Darlington transistor is activatedifthe

a logical0 at

by

the

A1FST (Al

IOD7.

digit drivers

the

current from eight LEDs,

Clockingis accomplished using

Fast)

(1)

areclockedinto

out

(1.3 ms). The numeric displays are

turn

U7/U3,KOto K15,

corresponding position

the

shift registers are cleared

signal from

the

firsttwo positions, pulling

provides a serial data

consists

whether

the

400-kHz

the

output

buffers. To

bar

displays are

bar

illuminated seriallybyclearingthe shift registersagain, then clocking through a one

Each

digitisilluminated

segment

4.5.4.3

DISPLAY

CIRCUITRY

Referto

shift registers

enable

drivers

ENABLE

Figure

9-13, DisplayDriver

U8/U2

stretcher

during

sets

down-counterU5onthe

the

microcomputer

Section

4.5.4.5,

Display

for approximately72ms;

the

brief

off

periods between digits.

STRETCHER

PWA

AND

Schematic,

the

DISPLAY

Series4. The numeric and bardisplay

are enabled by the display enable

a lower limit on

display driver

to access

Test).

the

A/D

the

length

PWA

The display enable stretcherallows

converter during

segment

(DSPLEN*)

of

DSPLEN*

the

data

is latched

PROTECTOR

signal. The display

using

display

presettable

test

into

time

(refer to

of

or \

in

>**#

by

(1).

the

for

4.5.4.4

NUMERIC
Refer to Figure9-13, Display Driver

DISPLAYON*line,
at

pins4to7and

AND

AO*.

10 to 13.

BAR

holds

DISPLAY

the

When

PWA

output

DISPLAY ON*goes high,

down from 27ata 400-kHz rate. When

resultinginan

pulse.

The display protector disables

If

the

microcomputer

to

prevent

display driver PWA.

from U19, allowing it to

the

counter will reach a

causing

the

U19 clocking so

4.5.43

DISPLAY

output

pulse

lasting approximately

DSPLEN*ifDISPLAY

LED

destruction.

should

When

fail, a

The

the

display protector

DISPLAY

countata 6.25 kHz rate. If

countofeight within 1.3

DISPLEN* signaltogo high,

thatitremainsata

TEST

character

countofeight

SEGMENT

Schematic, Series 4.

pin14ofU5high

the

counter reaches zero,

67.5

ON*

that

remains

consistsofbinary

ON*

signal goes low,

the

ms.

which

disables

the

until

DRIVERS

An

active low signal on

and

jams

the

counter

the

counterU5beginstocount

the

\ls longer

than

the

is active low longer

illuminated

the

resetcondition is removed

DISPLAY

ON*

The Q3A

digitdrivers.

resetbythe

willbeturned

counter

signal remains low,

output

Q3A

DISPLAY ON*signal.

with

output

goes low,

DISPLAY ON*

than

U19onthe

then

goes high,

also

disables

1.3

the

data

ms.

off

RefertoFigure

is

turnedtoLOCK/ON,

430-01858-003 (Rev. 5/95) 4 - 30 LifeCare

9-13,

Display

a hardware

Driver

PWA Schematic,

test

is performed to verify proper functioningofall

Series4.After

the

main

and

HomeCare Model 4

control

switch

Series

4.5

ELECTRONICS

SUBSYSTEM

PRINCIPLES

OF

OPERATION

displays.

message-full

The

Eight-bit
Ul

andUl1,

voltage

oneata
digit. (For

points
point) of
LED failsinthe

After

visual

The

numeric

latch

across

time.

are

checked.)

each

the

hardware

test.

operationofthe

(MFULL)

and

bar

U9, clockedbyA13,

which

one

segmentismeasured

The

testisrepeated

those

digit

digits

are

openorshort

test,

Becausenosingle

characters0and*are

4.5.5

POWER

RefertoFigure

Power

an

describes

power

elsewhere

for

internal

supply

SUPPLY

the

8 VDC,

the

power

in

Section

Model 4

9-14,

PWAisan

signal

displays

route

the

reserved

Then,

illuminated

all

displayed

PWA

Power

Series

2.5

ampere-hour

circuitry

integral

4.

message

is received

are

contains

LED

cathode

after

tested

display

by

the

and

while

for

each

segment

for

decimal

two

segments

while

circuit

segmentsofall

character

(the

the

condition,

displays

turns

alternatelytoilluminate

Supply

PWA

infusion

used

for

Schematic,

pumpsisobtained

(Ah)

(9000

these

power

partofother

driverisverified

sending

eight

measuring

addresses

anode

each

voltagestothe

segmentofthe

(except

pointsinthe

center

digit

drivers

the

MPU will

horizontal

are

on

allofthe

Micro

coulombs)

supplies.

functionsinthe

by

checking

characters.

the

for

voltage

the

two

across

analog

A/D

converter.

digitisilluminated,

for

the

decimal

Micro

are

illuminated

message

all

4/Model

from

pump,

segment

only

and

individually checked. If

signal

a malfunction.

for

2.5

display

segments.

4.

AC (mains)

battery

Someofthe

pack.

system

circuitryonthe

andisdescribed

that

the

each

LED.

multiplexers,

The

point)ineach

the

decimal

the

decimal

any

seconds

segments,

as

the

powerorfrom

This

section

a

4.5.5.1

UNREGULATED

RefertoFigure9-14,

Power

voltageisappliedtothe

The

secondaryofTl

through

J10

to

produces

the

AC (mains)

outputisfilteredbythe

4.5.5.2

BATTERY

RefertoFigure 9-14,

pack

powers

control

switchisrotated

approximately

CAUTION:

a

fully-charged

capacity

to

AC

(mains)

the

The

for

emergency

PACK

Power

pump

four

hoursofoperationata delivery

battery

condition.

power

except

DC

POWER

Supply

PWASchematic, Micro

SUPPLY

primaryoftransformer

14.2

VAC

under

inputs

2200

microfarad

Supply

and

memoryifAC

to LOCK/ON. A

charger

To

or

portable

during

of

the

(p.F)

PWA Schematic, Micro

(mains)

fully-charged

circuitryisdesigned

prevent

operation,
ambulatory

Tl

no-load

diode

capacitor

powerisnot

discharge

the

use.

CIRCUITRY

4/Model4.The

through

conditions,

rectifier

C31.

4/Model

battery

rateof125

to

maintain

and

to

pump

should

the

power

bridge

available

pack

ml/hr.

maintain

AC

cord

supplying

CR14.

4.

An8VDC

when

normally

the

battery

full

always

be

(mains)

and

this

The

the

provides

operating

connected

power

fuse(s).

voltage

rectifier

battery

main

pack

in

Technical

Service

Manual 4 - 31

430-01858-003

(Rev. 5/95)

Section4THEORYOFOPERATION

4.5.5.3

BATTERY

Refer to Figure9-14, Power Supply PWASchematic,

circuitry

current-limited

The

constant

Ql,

and

outputofthe

junctionofQ21,

voltageto9.8

CHARGER

is located

source

voltage

associated

battery

which

VDC±0.04

CIRCUITRY

on

the

power

andasupplemental

source

consistsofa difference amplifier,Ul1A,

components.

supply

Transistor Q21 is an adjustable voltage reference.

chargeriscontrolledbythe

is nominally

VDC

intoa20

2.5

VDC. Resistor

mA

Micro

PWA

and

current

source.

amplified differenceofthe

load.

Current limiting is performedbytransistor Q20, which

flowing

limits

from

battery

supply

way,

supply,

Diode

connected

fails. Fuse F2 prevents damage to cables

the

through

the

output

the

unregulated DC

charger

and

motor

the

battery

making

CR8

isolates

to AC (mains) power. FuseFlpreventslarge overcharge

inputofthe

resistor

R62.Ifthe

currentbyreducing

supply

depends

regulators

charger

the

regulators.

most

the

on

the

increases,

uses

efficient

battery

total

only

current

passes

through

the

battery

through R62, so

system

the

excess

useofthe

charger from

and

R62

charger

drain.

voltage level

current

unregulated

As

available from

the

battery

printed circuit wiringifa

4/Model4.

consists

The

of

a constant-voltage,

transistors

R79isusedtoset

senses

the

the

exceeds

output

that

the

current

across

ground

0.9A,Q20

voltages.

current

drawnbythe5VDC

R62

decreases. In

the

DC

supply

pack

capacity.

when

currentsifthe

battery charger

Q19

voltageatthe

the

charger

return

current

turnsonand

All

the

current

limitingofthe

unregulated

the

pump

is

charger

short

occurs

and

The

this

DC

not

at

4.5.5.4

DIODE

RefertoFigure

CR12
regulators.
supplies

(mains) power,

CR12isreverse-biased

through

4.5.5.5

POWER

Refer to Figure 9-14,

circuitryonthe

U2B,

components.

POWER

form

powertothe

diode

CONTROL

U2C,

and

9-14,

an

automatic

When

the

CR11.

power

U2E;

SWITCH

Power

Supply

power

the

pump

regulators

unregulated

and

current

CIRCUITRY

Power

gates

Supply PWA Schematic,

supply

U7A,

CIRCUITRY

PWA Schematic, Micro

switch

is

not

through

DC

supply

flows from

PWA

consistsoftransistors

U5B,

that

connected to AC (mains) power,

diode CR12.

voltage is greater

U5C

and

determines

the

unregulated

Micro

U5D;

latches

4/Model

the

When

the

than

DC

4/Model4.The

Q18

and

U6B

4.

source

pumpisconnectedtoAC

the

supplytothe

Q13;

and

Referto Figure 4-2, Power Control Circuitry. During normal operation,

high

and

OK

is

transistors
U10.

When

for four

to

hours,

transistor

battery

Q18

and

the

microcomputer

POWER

Q18.

(OKBATT*) is low.

Q13

saturated

goes low.

The

same

effectisobtained

shuts

Since

The

power control

and

power appliedtothe5VDC

off

power after

IRQ* is high,

when

the

latch

the

IRQ*

battery

latch

pump

U6C is

U6C is reset,

set,

shutoff

Diodes

of

power

the

battery

battery

power control

Schmitt

U6C;

and

the

POWER signal

regulator

has

been

txirning

pointissensed

CR11

to

and

the

pack

voltage, so

regulators

triggers

associated

keeping

amplifier

turned

off

off

power

430-01858-003 (Rev. 5/95) 4 • 32 LifeCare

and

HomeCare Model 4

Series

by

the

battery

of

the

stateofIRQ*.

After

pump

control

the

baseoftransistor

andtothe

Q18,

turning

reference

power

switch.

Schmitt-trigger

Q17.

microcomputer.

U6C

reset

and

INIT*

is

high

INTT*
the

main

the

main

alarm

FROM

MOTOR

DRIVER

assures

long

also

through

POWER

«

SWDC/RAWDC

that

enoughtoallow

energizes

control

control

monitor

When

has

and

been

the

Q18

on

Q13

and

At

the

INTT*

goes low for approximately 100

charging

switch

switchisturned

gate

capacitor

the

OKBATT* signal is low

the

nurse-call
activates

U7D

and

OKBATT* goes

shut

off,

main

control

through
inverters

capacitor

U2B

applying

same

time,

C29ofthe

the

microcomputer

relaytoverifyitisinthe

the

to

LOCK/ON.

assures

TO

MOTOR

VOLTAGE

REGULATOR

AND+5V
REGULATOR

REGULATOR

that

4.5

high,

power

ELECTRONICS

exceptinthis

oniscontrolled

SUBSYSTEM

case,

by

switchisturnedtoLOCK/ON,

C12

and

resistor

and

U2C

through

powertothe5VDC

IRQ*

goes

low,

generating

ms,

battery

and

that

and

monitor

the

the

keeping

power

R27

resistor

regulator

through

power control (PWRCTL) signal

supplytoinitialize.

non

nurse-call

the

system.

The

IRQ*

powerisnot

IRQ*

low

shut

remains

state

offbythe

^>R23

7

OK

|_T

BAT-

PRINCIPLES

OF

OPERATION

actionisindependent

the

actionofthe

powerisapplied

(power

R26;

an

the

U2E,

alarm

enables

amplifier

power

supply

this

interrupt

control

U6B,

state

by

low

foraslong

the

saturates

U10

to

and

the

audible

microprocessor.

\

INIT

U6C

S2

R2 Q2

main

to

PWA)

and

the

latch

CR3.

time

as

Uq^USBj)

Figure 4-2.

4.5.5.6

5

VDC

REGULATOR

CIRCUITRY

Refer to Figure 9-14, Power Supply PWA Schematic, Micro

of

the5VDC

voltage

emitter

deterrnines

amplifier

5

VDC.

the

regulatortooperate

regulatorisdividedbyresistors

and

the

reference voltageof2.5

voltageoftransistor

the

base

currentofthe

controls

The

series

transistor

pass

Q16

Q4tokeep

transistorisoperatedina

withalow

Power

VDC

follows

series

the

pass

the

input-output

Control

R58

Circuitry

and

R59.

is amplifiedbyerror

outputofU10A

transistor

error

closetozero

common-emitter

voltage

POWER

CONTROL

4/Model4.The

The

difference

amplifier

and,

Q4.

By

feedback

and

the

differential.

CR5

R28

^f-V\^-|

94F18025

output

together

action,

output

mode,

between

U10A

with

the

voltage

which

voltage

this

The

R56,

error

allows

at

The

regulator

exceeds

Technical

output

approximately

Service

Manual

currentissensedbyresistor

0.6

VDC,

transistor

Q15

4-33

R54.

turns

When

on,

increasing

the

voltage

drop

across

the

feedback

430-01858-003 (Rev. 5/95)

R54

voltage

Section4THEORY

from

the

R58-R59 divider to

pass

transistor,

4.5.5.7

5

VDC

FAILURE

OF

OPERATION

and

the

limiting

DETECTOR

error amplifier,

the

output

thus

reducing

currenttoapproximately

the

CIRCUITRY

base

1.1 A.

drive to

the

series

RefertoFigure

supplyisdetectedbytransistors

power

to

supply

supply

the

baseoftransistor

failure, Q23 switchesonand

continuously.

baseoftransistor

current

the

the

4.5.5.8

away

main

baseofQ23,

MOTOR

9-14,

Power

PWA.

When

If +5 VDCispresent,

Q22

through

from

Q23,

control

switchisturned

and

the

VOLTAGE

Supply

the

main

Q23

through

resistor

thus,

the

audible

REGULATOR

PWA Schematic, Micro

Q22

and

Q23,

control

grounds

audio

to

alarmissilent.

switchisturnedtoLOCK/ON,

resistor

the

INIT*

R84;

R82. In

the

audio 1 line, causing

line is

this

1 line is

LOAD/OFF

Refer to Figure 9-14, Power Supply PWA Schematic,

regulatorissimilartothe

approximately

is performed

approximately

4.5.5.9

1.4A,anditincorporatesaremote

by

transistor

zero.

+5

Q8,

VDC

which

regulator,

when

except

turned

4/Model

and

resistors

the

high

(+5

switches

high

and

the

RECHARGE,

Micro

4/Model 4.

that

its

shutdown

on

reduces

4.

Lossofthe+5VDC

R82

through

absenceof+5

the

VDC)

andisapplied to

Q22

on

and

audible

no

alarmissilent

current

The

output

feature.

currentislimited

Remote

the

reference voltage to

R84

on

the

SWDCisapplied

VDC

due

to a

alarm to sound

the

shunts

is

available

motor

the

base

voltage

shutdown

to

to

If

BATTERY

MONITOR

RefertoFigure 9-14,

circuitryislocated

A/D

converter.

generatesalow

The

voltageatthe

by

resistors

diode

CR3

assure

With

the

pump

8.2

VDC

whichisdetected

the

BATT

and

If AC (mains)

voltage

illuminates

As

7.65

If

battery

(between

the

VDC,

which

battery

the

discharge

6.85

REGCK

battery

R45, R77,

that

connectedtoAC

LOW

powerisdisconnected,

is

the

BATT

packisdischarged

BATT

VDC

CIRCUITRY

Power

on

inputtothe

legends

detected

LOW

the

power

controls

alarm

and

R76

the

filter

by

legend.

legend

Supply

whenalow

regulators,

for

capacitor

the

off.

by

the

flashes,

continuessothat

and

7.15

VDC),

PWA Schematic, Micro

supply

(mains) power,

microprocessor

the

the

PWA

BATT

A/D

the

and

battery

less

converter

C29ischarged

regulator

One

output,

LOW

condition

the

drop

the

(through

input

microprocessor

and

the

the

the

voltageatthe

the

OKBATT*

battery

alarm

voltage fallstobetween

sounds,

line

4/Model4.The

REGCK,isconnectedtothe

legends

across

and

comparator

after

Q13

collector

occurs.

the

the

A/D

on

the

transistor

U12A

pumpispowered

voltageislarger

converter),

voltage decreasestothe

(through

comparator

goes

and

high,

the

A/D

the

nurse-callisactivated.

U12A

turning

battery

front

Q13,isscaled

panel

IC

and

U6B

monitor

battery

converter),

7.35

VDC

falls

below

off

the

regulator.

and

and

on.

than

turns

and

and

VREF

430-01858-003

(Rev. 5/95) 4 -

34

LifeCare

and

HomeCare

Mode) 4

Series

4.5

ELECTRONICS

4.5.5.10

^

MEMORY

SUPPLY

CIRCUITRY

SUBSYSTEM

PRINCIPLES

OF

OPERATION

RefertoFigure

power

memoryisnot

when

Q14,

memory

PWA

Whenever

saturated
to

RAWDC

regulator

4.5.6

supply

the

pumpisdisconnected

and

Schottky

power

the5VDC

transistor

approximately

line

for

CURRENT

RefertoFigure

charger

contains

PWAisinstalledincertain

the

Differential

•

•

Window

•

60

minute

Q

200

mA

(transistors

•

AC

(mains)

9-14,

PWA

lost

supply

Power

contain

when

diode

Q10

Supply

provision

the

main

CR9onthe

that

powers

regulatorison,

from

2.3Vandissupplied

and

resistor

VMEM.

R51,

BOOST

9-15,

Current

following circuitry:

amplifier

comparator

battery

constant

Q3, Q4,

detector

(U3)

with

charger

current

Q5,

(transistor

PWA

Schematic,

for

powering

control

from

AC

(mains)

power

RAMs

voltage

the

5 V

supply.

from AC (mains)

with

voltage reference

CHARGER

Boost

Charger

Model 4

and

20

hysteresis

timer

source

Q6)

Ql)

mA

(U2)

Micro

4/Model

the

RAMssothat

switchisturnedtoLOAD/OFF

supply

U5

power.

and

memory

When

Transistor

PWA

composealow-quiescent-current

U6

and

controls

(VMEM)issupplied

the

5 V

powerorthe

4.

volatile

Q10,

gateUl1onthe

regulator

batteries

transistor

PWA

Schematic, MDL

Series

shut-off

(Ul)

pumps.

(transistors

circuitry

Q7, Q8,

The

4/PCA.

current

(Q2)

Q9)

and

Some

versionsofthe

RECHARGE

voltage

is off,

Q14

serving

The

boost

associated

data

reference

through

VMEM

through

current

charger

stored

MPU

drops

as

boost

PWA

logic

in

or

the

the

the

|^,

The

current

power

4.5.6.1

AC

RefertoFigure

with

operation,asdescribedinthe

(MAINS)

associated

hysteresis.
the

battery

and

Q4,

The

clock

is

pending

DECODE

disabled,

DECODE

on

the

Technical Service Manual 4 - 35 430-01858-003 (Rev. 5/95)

boost

charger

OPERATION

9-15,

capacitors

When

voltage

and

frequencyoftimer

the

signal

and

signal

SET

input

the

reaches

triggering

biasingofthe

on

output

removes

also

pin1of

PWA

Current

battery

Boost

and

is initially

10 VDC,

the

timer,

U2isdetermined

U2

pin13ofU2goes

the

supplytotransistor

locksin the

U2.

functions

following

Charger

resistors,

connected,

the

U2.

program

timer,

U2,

during

Schematic,

pump

sections.

functions

the

outputofUl

by

capacitor

inputs

high

Q9,

A,

which

causing

preventing

AC

(mains)

MDL

4/PCA.

asawindow

outputofUlisat

goes low, disabling

C5

and

B, C,

and

disables

battery

power

Voltage

and

detector

comparator

logic

transistors

resistor

D.

Upon

Q5,

since

chargingtostop.

R9;

time-out,

Q4isalready

high.

operationbyplacingalogic

battery

Ul,

with

After

Q3

time-out

the

The

high

Section4THEORYOFOPERATION

The

AC

pump

timer

and

(mains)/DC

operates

U2

and

keeps

transistors

Ql

detector

on

AC (mains) power,

off.

consistsoftransistor

the

collectorofQlisat

Ql

Q6. During DC operation,

and

associated

resistors.

logic low,

the

+VRDC signal isatground

When

enabling

the

the

level

Currentislimitedto200

dividedbythe

is

enabled

IC

U3-B,

Currentissensed

PWA.

is

also

When

the

referencedat500

switchestoa logic

Q19)onthe

4.5.6.2

DC

OPERATION

resistance

and

disabledbytransistor

acts

as

a differential

across

current

input

to

mV

high

power

supply

mAbythe

valueofresistorR17. Transistor Q7 actsas a power

resistor

drops

below

comparator

from

the

and

turns

PWA

RefertoFigure 9-15, Current

operatesonbattery

the

voltage

transistors

4.5.7

detector

Q3,

Q4,

power

Ul

and

and

switches

Q5.

quotientofthe

Q9.

amplifier

R62inthe

withagainofapproximately

battery

approximately20mA,

U3-A,

battery

Resistor

Boost

the

Transistor

pin

6),isat

charger circuitryonthe

on

transistor

R26

Charger Schematic,

battery

to logic

Q6

pack

high

remains

voltage-base-emitteroftransistor

20

charging

100

Q2, disabling

and

capacitorC8

circuitryofthe

the

outputofU3-B,

mV

or below. Pin 3ofU3-A

MDL

power

the

actasa

4/PCA

supply

charging

noise

When

drainstoapproximately8VDC,

which

resets

disabled

the

because

timer

Qlisdisabled.

switch

decibels

power

supply

pin1(which

PWA.

circuit

(Q1

filter to Q8.

the

pump

pin4of

U2,

enabling

Q8

that

(dB).

is

U3-A

and

CONTROL

Control

are

4.5.7.1

FRONT

The

touchswitches,

switches

describedinthe

front

panelofthe

1.

2.

3.

4.

5.

6. DELIVERY RATE

7. DELIVERY RATE

8.

9.

10.

SWITCHES

are

locatedonboth

following

PANEL

as

[START]

[RESET]
[SILENCE]

[CLEAR]

[LIMIT

DOSE

DOSE

[PIGGYBACK] (4P

SWITCHES

pump

follows:

ON

OFF

LIMIT/DOSE DELIVERED

LIMIT/DOSE DELIVERED

sections.

contains

CLEAR]

[ft]
[U]

only)

the

front

nineorten

and

the

backofthe

(dependingonthe

[ft]

[U]

pump.

model)

These

switches

membrane-type

430-01858-003 (Rev. 5/95) 4 - 36 LifeCare

and

HomeCare Model 4

Series

The

front

ground.

network

by

PWA

A

touchswitch

Touchswitch

RN1onthe

the

microprocessor

when

short

panel

enabled

beep

always

touchswitches

closures

display

circuitry

by

A6*

sounds

whenever

soundsabeep

driver

and

are

normally

are

converted

PWA.

through

A7*.

an

whenitis

4.5

The

tri-state

active

ELECTRONICS

open

withacommon

to logic

stateofthe

buffers

touchswitch

pressed,

SUBSYSTEM

levelsbypull-up

front

U3

and

is

whetheritis

PRINCIPLES

panel

UIOonthe

pressed.

OF

OPERATION

return

resistorsinresistor

touchswitchesisread

activeornot.

connected

motor

The

to

driver

[SILENCE]

Note:

2-1/2

When

minutes,

a front

or

failstoopen

messageisdisplayed.

The

front

panel

to a shaft.

permit

switch

resultifthe

cassette

wafer.

connected.

control

switchisturned

4.5.7.2

REAR

circuitryonthe

PANEL

User-accessible

follows:

the

the

The

backpressure

settings

(27.6±

This

slide

occlusion

Micro

drip

shield.

occlusion

(MIN, MID, MAX) correspond to differential

13.8

switch

switch,

The

The

main

The

only,

necessary

kPa),

can

depending

also

shaftofthe

insertion,

nurse

control

power

to

switches

pressure

set

pressure

8±3psig(55.2±20.7kPa),

be

panel

houses

the

main

and

call

switch

control

power

LOCK/ON.

SWITCHES

on

setting

type

switch

setting

to

cause

either

a vertically

on

pump

touchswitch

after

being

main

control

operates

enable

were

turnedtoLOAD/OFF

switch

supply

the

back

switch

(SW4). A

switch
the

configuration.

is

closed,analarm

control

switch,

switch

the

nurse-call

switch

PWA

wafer

through

prevents

sendsapower

panelofthe

(SW2),

legend

allows

pump

to

and12±4

mounted

pressed

drives

the

Model 4

audible

for

these

the

sound

alarm

toggle

continuously

sounds

whichisa

the

cassette

enable

false

wafer

nurse-call

RECHARGE

on

SWDC

line

Series

alarm

switchesison

user

to

an

occlusion

threshold

psig

(82.8±27.6

switchora

for

and

a MALFUNCTION

rotating

locking

and

the

alarms

with

command

when

infusion

level

switch

select

the

alarm.

pressuresof4±

kPa),

horizontally

approximately

knob

connected

mechanism

power

the

the

that

nurse-call

to

the

main

control

control

pump

(SW3),

the

and

label

increase

The

respectively.

mounted

to

would

power

are

as

on

above

in

three

2 psig

The

occlusion

connectedtoinput3on

switch

settings

The

of

In

Q6
audible

position.

MIN,

audible

three

positions:

the

HIGH

on

the

alarmisactivated.

piezoelectric
R25

remainsinseries

the

piezoelectric

The

set

type

alarm criteria to

for a 15

Technical Service Manual 4 - 37 430-01858-003 (Rev. 5/95)

drops/ml

pressure

MID,

alarm

position,

power

alarm,

switch,

OCSEL

and

level

HIGH,

supply

limiting

alarm,

on

suit

the

set.

setting

the

A/D

switch

converter,

changes

and

levels are O VDC, +2.5 VDC,

MAX,

switch

the

with

The

respectively.

(AUD. ALM.)

medium,

or LOW.

piezoelectric

PWA, allowing

In

the

medium

the

currenttoapproximately

the

piezoelectric alarm,

further

the

reducing

Micro

pump

typeofset

positionofthe

sets

alarmisconnected

maximum

position,

the

currenttoabout

only,

being used:

switch is

the

levelonthe

enables

the

audible

current

R25isswitched

and

allows

type

the

A for a 60

sensedbythe

the

microcomputertoread

and

+5

VDC

alarm

directlytothe

flow (above

1.9

mA.

signal

which

sound

In

the

OCSEL,

which

correspond

intensitytoone

driver

2.7
in

mA)

series

LOW

transistor

when

position,

R19isconnectedinparallel

0.3

mA

usertoselect

drops/ml

the

set,

MPU PWA

flow

and

through

the

with

the

with

monitor

type

the

the

is

to

B

Section4THEORYOFOPERATION

STYPE signal. The STYPE signal governs how many drops

rate

settings

MECHANICAL

OF

The

the

describedinthe

Operationally,

cassette

LOCK/ON.

pivot

the

one-way

OPERATION

principle mechanical elementsofthe

cassette,

armofthe

motor

and

controls

pump

the

receptacleonthe

This

mechanism,

following sections.

mechanical

action also

pumpatthe

drives

fluid flow

the

pivot

through

the

high

and

SUBSYSTEM

and

elements

frontofthe

turnsonthe

topofits stroke.

arm

up

and

the

fluid lines.

low flow alarm operation.

LifeCare Model 4 Series infusion

motor

functionasfollows:

pump

when

power to

When

down,

and

and

motor

the

the

pump

the

valving

main

must

be presentto

PRINCIPLES

drivers.

the

control

motordrivers

[START]

inside

These

cassetteislocked

switchisturned

touchswitch is pressed,

the

cassette

match

pump

elements

and

places

include

into

causes

the

are

the

to

the

a

CASSETTE

The

pump

volumetrically. A spring-loaded

pressure

valve (5 to 7

cannot

cassette

developedinthe

pounds

be

achieved

when

operates

compression

per square

too

much

on

outlet

inch

a fluid

valveis biasedto

chamber

displacement

exceeds

(psi) (34.5 to 48.3

air is

presentinthe

permit

the

mechanical

kPa)).

compression

therefore mechanicallyimpossible forair tobepumpedthrough

lineofthe

The

cassette

trap

and

lies

between

when

The

into

the

immediately

pressure

is

metered

In

the

causingadropinpressureinthe

and

begins

administration

has

two

chamber

prevents

the

two-stage

compression

collects

them

the

diaphragmiscompressedbythe

from entering

inlet

pumping

closes

increases

outofthe

beyond

second stageofthe

opening

the

the

next

inlet

cycle.

set.

chambers

any

bubbles

and

outletvalves.

cycle begins

chamberbythe

the

inlet

valve, preventing backflow to

that

compression

pump

valve. Fluid

separatedbythe

that

may

forminthe

the

compression chamber.

The

volume of

plunger [see Figure 4-3, Pump Cassette).

with

the

pump

requiredtoopen

chamber

cycle,

compression

then

motor.

into

the

refills

diaphragm

inletvalve

and

partofthe

the

compression

diaphragm being moved

The

resulting

the

the

outlet

the

distal

valve, a

tubingtothe

returnstoits

chamber,

the

allowing

compression

principle

flow

only

to

when

resistanceofthe

The

necessary pressure

the

cassette

siphon

The

increaseinfluid

chamber

tube.A2.5mlair

set

above

compression

chamber

about

fluid container.

precise

patient.

original position,

the

outlet

deliver

the

chamber.

into

the

fluid

internal

It

the

distal

cassette

chamber

changes

1/16

inch

pressure

As

volumeoffluid

valvetoclose,

and

the

system

^J

is

the

To

prime

outlet

adjust

compression

position

430-01858-003 (Rev. 5/95) 4 - 38 UfeCare

the

pump

valve. A

fluid flow

chamber.

and

the

cassette,anover-travel positionofthe

detent

outlet

with

holds

the

After

valve

the

plungerinthis

manual

priming,

closestoprevent

flow control

the

clamp

plunger is

fluid flow.

plunger

priming position, so

and

remove

returnedtoits

mechanically

that

the

air

bubbles

operating

and

HomeCare

(undetented)

opens

user

from

Model 4

the

can

the

Series

4.6

MECHANICAL

SUBSYSTEM

PRINCIPLES

OF

OPERATION

Note:

The

4P,or4H

pump,

switch

an

must

appears

for

the

appropriate

PROXIMAL

LifeCare

pump

alarm

after

(AIR

microcassette

without

sounds

be

turned

the

[START]

microcassette

INLET

CHAMBER

TRAP)

using

and

the

to

LOAD/OFF

cannot

force. If a

pump

be

inserted

non-microcassette

will

not

RECHARGE.

touchswitchispressedifthe

(type Aortype

PLUNGER

VALVE

start.

B).

into

To

The

the

reset

set

cassette

is

inserted

the

pump,

CHECK

type

switch

portofthe

into

the

main

CASSETTE

(Micro)isnot

COMPRESSION
CHAMBER

PLUNGER

OUTLET

Model

the

Micro

control

message

TIP

VALVE

4,

set

4.6.2

PUMP

The

pump

•

Locksapump

•

Causes
length

•

Measures

STANDPIPE

MECHANISM

mechanism

the

appropriatetodeliver

backpressurebymeasuring

set

cassette

performs

cassette

plungertocycle

Figure 4-3.

the

following

into

place

1/15

mloffluid

Pump

major

once

the

TO

PATIENT

Cassette

functions:

per

pump

force

requiredtodrive

motor

SPRING

94F18030

revolution,

the

cassette

with

stroke

plunger

With

the

main

control

insertedorremoved from

ascertain

Technical

proper

Service

seatingofthe

Manual

switch

the

turned

cassette

cassette.

to

LOAD/OFF

receptacle. A

4-39

RECHARGE,

detenting

the

cassette

action

allows

430-01858-003 (Rev. 5/95)

the

can

user

be

to

Section4THEORYOFOPERATION

Turning

the

main

mechanism to lock

mechanism

When

4.6.3

one

pump

motion

the

MOTOR

The

pumping

by

the

microprocessor

Ul1,which

PWA

motor

The

motor

the

to

and

taming

reduced

motor

and

CR1

to firmly grasp

[START]

stroke per

throughacam

AND

actionofthe

sequential energizingofthe

through

controls

RV1

and

RV2

coilisturned

is operatedinoneoftwo

appropriate coilsbyturningonthe

on

the

by

turning

supply

on

off,

the

motherboard

control

the

switch

from

LOAD/OFF

cassette firmly in the receptacle and

the

ballofthe

touchswitchispressed,

motor

rotation.

arrangement

MOTOR

mechanism

The

DRIVERS

is controlledbya four-phase stepping

four windings.

the

I/O

data

bus.

the

motor

are varistors

off.

drive

used

transistors

to limit

modes.

proper drive transistors. In

off

the

the

motor

holding

supply,

current

PWA.

is suppliedbythe

RECHARGEtoLOCK/ON

the

pumping portionofthe

cassette plunger.

the

pumping

portionofthe

mechanism

motorrotation is translated into linear

motor

The

pump

Winding energizing

Ql,

Q2,

the

back

In

the

stepping

+5VDC

but

motor

the

holding

leavingonthe

5 VDC digital

Q3,

and

EMF

mode,

supply

mode,

drive

motor

which

is controlledbythe

dataislatchedinUl

Q4onthe

motor

is generated

full

current

for approximately 10

the

motor

transistors.

supply

through

causes

executes

pumping

rotated

driver

when

is applied

current

With

R12

the

or

a

ms

is

the

The

motor

the

output

VMOFF is

PWA

to

ground

BATTERY

The

pumpisintendedtooperate

emergency

include

cord.

locationtoanother.Anew,

of

operationata

If

the

than
of

the

be

immediately

The

pump

to

remain

symbol

voltage

regulator

latchU5orU7onthe

When

oneofthe

VMOFFishigh,itturns

and

shuts

two

off

the

OPERATION

backup

AC (mains)

An

instance

battery

125

pump

packisnot

ml/hr,

andtoavoid

shouldbeconnectedtoAC

fully charged.

illuminates

or

temporary

power

of

temporary

delivery

battery

cormectedtoAC

powerisexhaustedata fasterrate. To

whenthe pumpis

(VMOT)

signal

motor

failureorinadvertent

fully-charged

rateof125

newornot

damagetothe

The

AC

is turnedon andoffby the microcomputer through J

motor

lines

(mains)

driver

connected to

onQ8which,inturn,

power

on

portable operation.

portable

(mains) power

supply.

battery

operation

battery

ml/hr.

fully charged, orifthe

battery
power

(mains)

operatingonbattery

PWA,

which

the

baseofQ8

controls

shunts

OVERVIEW

poweronan

disconnectionofthe

pack

pack,

when

power

whenever

symbol

exception

Examples

includes

provides

delivery rate

the

AC

the

low

turns

power.

the

signal

on

the

power

the

+2.5

VDC

basis

only,

of

emergency

AC (mains)

patient

approximately

assure

(mains)

battery

possibletoallow

off

transfer

continued

power

alarm

and

the

settingishigher

battery

line

VMOFF.

reference

such

from

four

operation

cord

sounds.

the

***^

supply

as

backup

power

one

hours

should

battery

power

^J

Factors

and

430-01858-003 (Rev. 5/95) 4 -40 LifeCareand HomeCareModel4 Series

that

the

lengthofthe

most

commonly

recharge

affect

period.

battery

As

life are

a general rule,

the

depth

the

and

frequencyofdischarge

more

often

the

battery

is

4.7

BATTERY

OPERATION

OVERVIEW

discharged and recharged, the sooner it

damage is leaving the battery in a less

will

need replacement. The primary cause of

than

fully charged state for

any

period of time.

. Battery damage can occur in a matter of hours and cause a permanent loss ofbattery

%b/ capacity. The

amount

of lost capacity depends on

the

degree of discharge,

the

storage

temperature, and the length oftime the battery was stored in a discharged state.

Note: A permanentlydamaged batterycannot be recharged to full capacity.

When the battery discharges below the acceptable levelwhile

alarm

continue operating

sounds

and

the

the

BATT

pump

LOWmessage displays. Althoughitis

on battery poweratthis point,

the

the

pump

not

battery

is operating, the

recommended to

will continue

providing poweruntil discharged.At this point, the pump enters the battery discharged

mode

and

operation

CAUTION:Assoonasthe

power.

ceases.

low

battery

alarm

occurs,

connect

the

pumptoAC

(mains)

Rechargingoccursany timethe pumpis connected toAC(mains)power. It is recommended

that

the

available

to

be

on

dependent

See

Section

pump

battery

for

be connected to AC (mains) power whenever practicable to maximize

charge during

the

battery

5.3,

Battery

Maintenance, for

to

recharge.

transport

Recharging

or ambulation.

while

more

information.

The

power switch does

the

pump

is

operatingisrate

not

have

Technical

Service

Manual

4-

41

430-01858-003

(Rev.

5/95)

Ss^

4

Series

Model

and

HomeCare

LifeCare

4-42

5/95)

(Rev.

430-01858-003

left

blank.

This

page

intentionally

Sa#

OF

OPERATION

4

THEORY

Section

^ Section 5

MAINTENANCE

TESTS

This

section

test

(PVT),

Series

infusion

PREVENTIVE

A

preventive

of

the

sanitizing,

Performance

Asaminimum

schedule

serviceorafter

and

pump.

and

during

contains

battery

pumps.

maintenance

Such

preventive

maintenance

a program

checking

Verification

requirement,

use.Inaddition,

any

repair

programisimportant

for proper operationofthe

Test

procedure.

AND

maintenance

information

MAINTENANCE

includes

clean

the

pump

clean

the

information,aperformance

for

for

periodic inspection, exterior cleaning

after

pump

and

the

longevity

pump

each

run

SERVICE

LifeCare

use.

the

and

and

trouble-free

using

the

Establisharegular

PVTaspartofany

verification

HomeCare

Model

operation

and

PVTinSection 5.2,

cleaning

scheduled

4

5.1.1

INSPECTING

Inspect
instrument

cleaning.

Inspect

•

•

• Pole

•

•

•

•

Q

•

•

Q

Q

Power

Pump

Main

Front

Accessory

Flow

Faceplate

Pressure

Screws

Flow

Accessories

Q

Plunger

the

pump

connections,ordamaged

Replace

the

following

and

case

clamp

control

and

detector

detector

any

accessory

and

switch

the

connector

connector

pads

guide

THE

periodically for

damagedordefective

subassemblies

pads

rear

(feet)

cords

panel

(ACC.)

PUMP

switches

(FLOW

signsofdefects

cables.

for

DET.)

Also

inspect

external

missingordamaged

such

the

parts.

as

pump

parts

worn

after

and

accessories,

repair

for

and

cosmetic

broken

during

defects:

Technical Service Manual

5-1

430-01858-003 (Rev. 5/95)

Section5MAINTENANCE

5.1.2

AND

SERVICE

TESTS

CLEANING

The

following

and

promote

Follow

hospital

THE

procedures

trouble-free

protocol for

are

instrument

DISCONNECT THE PUMP FROM

INSTRUMENT.
ELECTRICAL

CAUTION:
instrument.

CAUTION:
components
solutions
and,

not

potentially,

combinations

Clean

the

water.

plastic,

the

exposed

cleaning

Remove

such

Do

FAILURE

SHOCK.

not

immerse

Do

not

allow

Certain

made

from

recommended

void

of

isopropyl

surfacesofthe

solutions

soap

residue

as

isopropyl

cleaning

some

the

listedinTable 5-1, Cleaning Solutions,ora

alcoholoracetone.

PUMP

designedtomaintain

operation.

establishing

TO

COMPLY

the

liquids

and

plastic

by

Abbott

product

alcohol

pump

with

the

WARNING

AC

(MAINS) POWER PRIOR TO CLEANING THE

WITH

pump

to

enter

sanitizing

materials.

Laboratories

warranty.

and

dimethyl

with

clear

water.

the

pump

in

the

cleaning

THIS

liquids.

pump

compounds

Using

Do
benzyl

a soft, lint-free

Do

not

Do

not

use

pump,

schedule.

WARNING

Immersion

electronics

abrasive

may

result

not

use

ammonium

cloth

use

solvents

abrasive

sustain

COULD

could

compartment.

may

cleaners

in

compounds

dampened

mild

that

cleaners.

system

slowly

product

RESULT

damage

or

longevity,

IN

the

degrade

cleaning

damage

containing

chloride.

with

one

solutionofsoapy

are

harmful

of

to

CAUTION:

in

Table

5-1.

manufacturer

CAUTION:

Cleaning

Vesphene®

Manu-Klenz®

Formula

Super

Household

LifeCare®

Germicidal
Towelette

C™

Edisonite®

To

avoid

The

for

Do

not

Solution

Use

bleach

pump

disinfecting

specific

spray

damage,

properties

information.

cleaning

Table

5-1.

Manufacturer

solutions

Calgon Vestal Laboratories

Calgon Vestal Laboratories

Diversey Corporation

S.M.Edison

Various

Manufactured

Laboratories

cleaning

Cleaning

Chemical

for

Abbott

solutions

of

cleaning

toward

Solutions

Co.

shouldbeused

solutions

any

openingsinthe

Preparation

Per

manufacturer's

Per

manufacturer's

Per

manufacturer's

Per

manufacturer's

Per

hospital

exceed

water

Per

manufacturer's

recommendation;

procedures;

one

part

onlyasdirected

vary;

consult

pump.

recommendation

recommendation

recommendation

recommendation

do not

bleachinten

use

undiluted

the

parts

430-01858-003 (Rev. 5/95)

5-2

LifeCare

and

HomeCare

Model4Series

5.1.3

5.2

PERFORMANCE

VERIFICATION

TEST

SANITIZING

Sanitize

Cleaning

CAUTION:

radiation.

Note:

the

Solutions.

These

Not

all

external

Do

cleaning

THE

surfacesofthe

not

sterilize

methods

5.2

PERFORMANCE

As a

part

ofapreventive

conducted

requirements.

The

PVTisused

pump

The

PVT

malfunctioning

a preventive

verification

asaresultofthe

periodically

for

overall

troubleshooting.

can

be

used

pump,

maintenance

beforeapumpisreturnedtoservice

PVT,

PUMP

pump

the

pump

may

solutions

cause

are

the

sanitizers.

VERIFICATION

maintenance

per

hospital

verificationofpump

The

PVT

consistsofthe

for

diagnostic

and

for verificationofthe

schedule.Inaddition,

refertoTable

procedures

6-13,

usingacleaning

using

schedule,itis

heat,

instrument

Check

for

performance

tests

describedinthe

purposes

after

Troubleshooting

during

overall

the

PVT

repair.Ifany

solution

steam,

to

product

ethylene

malfunction.

labeling.

TEST

recommended

compliance

andasa

performanceofa

shouldbeused

with

diagnostic

the

troubleshooting

malfunctionisdetected

the

PVT.

listedinTable 5-1,

oxide

that

with

(ETO),

the

PVT

accreditation

tool

during

following sections.

of

pumpaspart

for

performance

or

be

a

of

\p,

Note:

and

5.2.1

EQUIPMENT

The

for

Technical Service Manual 5 - 3 430-01858-003 (Rev. 5/95)

The

PVT

mustbeperformed

reliable

product

evaluation

AND

following

the

Model4Series

•

Digital

•

Abbott

•

Dry

•

Waste

Q

21-gauge

•

Glassorflexible IV

• IV

Q

Safety

Q

Digital

• Three-way stopcock, List

Q

Accessory

•

Malfunction

pressure

LifeCare

cassette

water

pole

analyzer,

multimeter

equipment

infusion

meter

IV

collection

Butterfly®

Dynatech

connector

simulator

and

(DPM),

set,

container

needle,

containerofsterile

(DMM),

cable,

exactlyasdescribedinthis

information.

MATERIALS

materials,orequivalents,

pump:

List

No.

Nevada®

Fluke®

No.

P/N

plug,

Bio-Tek®

3704

List

No.

3233

561-D1617

List

No.

DPM

(List

No.

4492

water

Model

Model

561-81620-001

(tap

23ID

77

manualtoassure

REQUIRED

are

requiredtoperform

II

9243

for

Micro)

water

maybeusedasan

effective

the

PVT

alternate)

Section5MAINTENANCE

•

•

5.2.2

Graduate,

Flow

25

detector,

ml

AND

List

SERVICE

(0.2

graduations)

No.

1907-25

TESTS

PUMP

Before

described

5.2.3

DRY

To

Note:Ifthe

Shroud

starting

CASSETTE

perform

Rear

1.

Insertadry

2.

Turn

LOCK/ON

3.

Verify
both

4.

Turn

cassette

INSPECTION

the

test

in

Section

the

locking

Tab

the

that

the

the

5.1.1,

dry

cassette

tabs

Adjustment

cassette

main

position

the

rear

left

and

main

control

should

withdraw

procedures,

Inspecting

TEST

test,

proceedasfollows:

do

not

seat

into

the

control

right

switch

without

locking

bindingordragging.

tabs

sidesofthe

switchtoLOAD/OFF

freely.

perform a

the

Pump.

properly,

shroud.

to

LOCK/ON.

are

cassette.

thorough

adjust

The

themasdescribedinSection 7.2.3,

cassette

seatedinthe

RECHARGE.

should

The

cassette

inspection

slideinfreely.

switch

should

hold

Remove

of

the

down

the

pump

move

notches

cassette.

to

as

the

on

The

5.2.4

TEST

DURING

Note:

the

container)

Accuracy

Before

For

set

(using a rigid container)orto

performing

1.

Attach

IV pole

appropriate

2.

Connect

the

3.

Turn

cassette

4. Have a

SETUP

PUMP

all

testing,

must

Test

Setup).

the

and

the

IV

container.

the

into

waste

TESTING,DONOT

the

vertical

be

18 ± 6

the

appropriate

prime

system

flow

main

control

the

water

inches

PVT,

set

LifeCare

the

operating

detectortothe

switchtothe

pump

receptacle.

receptacleathand.

distance

up

set.

WARNING

CONNECT

from

the

fluid levelinthe

(46 ± 15

the

pumpasfollows:

settothe

(For

the

manual).

pump,

LOAD

THE

PUMPTOA

the

cassette

centimeters

IVcontainer;

correct

priming

butdonot

OFF

RECHARGE

The

pumpisnow

PATIENT.

midlinetothe

container

(cm)) (see Figure 5-1, Delivery

hang

the

procedure,

attachitto

the

position

set

up

vent

filter

(using a non-rigid

container

from

refer to

drip

chamber

and

insert

for testing.

in

the
the

of

the

430-01858-003 (Rev. 5/95) 5 - 4 LifeCare and HomeCare Model 4 Series

5.2.5

5.2

PERFORMANCE

VERIFICATION

TEST

START

To

perform

1.

2.

3.

Set

up

Turn

the

display

Gently

UP

the

the

the

wiggle

iUuminateonthe

4.

Disconnect

illuminates.

the

tests.

WATER

(BOTTLE OR BAG)

FLOW

DETECTOR

TEST

start

up

test,

proceed as follows:

pumpasdescribedinSection

main

control

legends

the

the

pump

Connect

switchtoLOCK/ON

iUuminate,

flow

detector

front

panel

display

from AC (mains)

the

pump

andadouble

connector.

to AC (mains)

5.2.4,

The

legend.

power

Test

Setup.

and

verify

that

confirmation

NO

and

FLOW

verify

DET

the

powertocomplete

all

beep

battery

LED

segments

sounds.

message

message

the

should

BATT

remainder

and

not

of

IV

INFUSION

21-GAU6E

BUTTERFLY

GRADUATED

CYLINDER

25

PUMP

SET

mL

18

± 6

INCHES

(46.±15

MIDLINE

0 ± 6

?

(0

±

INCHES

15

CM)

Figure 5-1. Delivery Accuracy

CM)*

VERTICAL DISTANCE

FILTER

CONTAINER; VERTICAL DISTANCE

TO

USINGANON-RIGID

Test

FLUID

CASSETTE

Setup

IN

THE

LEVEL IN THE CONTAINER

94F18004

IS

SET

USINGARIGID

CONTAINER.

TO VENT

IS

Technical

Service

Manual

5-5

430-01858-003 (Rev. 5/95)

Section5MAINTENANCE

5.2.6

AND

SERVICE

TESTS

PRESSURE

TEST

AND

SILENCE

SWITCH

Ifthe pump fails the pressure test, and the pressure sensor

the test failure, refer to Section 7.2.4, Pressure Sensor

the

pressure

1.

Set

Make

midline

2. Connect

to

Note:

3.

Set
hold

DELIVERED display.

corresponding

4.

Set

5.

With

pump
occlusion,

6.

An

VOLUME DELIVERED

Press
should

switch
for

the

test

and

up

the

test

air.

certain

Turn

The

the

the

the

of

the

cassette.

the

DPM

the

DPM

pressure

[SILENCEJ

changeinthe

the

delivery

the

pressure

strokes,

the

pressure

alarm

one

should

and

hold

show

DIF

settingisdisplayed

flash,

three-way

followedbythe

stopcock.

silence switch test, proceedasfollows:

equipment as shown in

waterinthe

containerisat

Figure

to the end ofthe setwith a three-waystopcock. Openthe stopcock

main

control

must

be

switch on

touchswitch

Change

rateto300

switch

verify

sound

the

PRES.

the

display.

[SILENCE]

switchtoLOCK/ON.

0 ± 6

inches

the

backofthe

the

(0 ± 15 cm)

and

switch

read

settingtoMAX,

VOLUMEDELIVEREDdisplay.

ml/hr

set

DPM

should

andaflashing

When

for

(99.9

to MIN,

reads

read

The

touchswitch;

the

[SILENCE]

one

flash

pressure

ml/hr

press

0,

then

4.0

±1.5

OCCLUDED

DELIVERY RATE

(for

the

switch

Calibration

5-1, Delivery Accuracy Test Setup.

18

± 6

from

pumptothe

the

switch position on

for

Micro).

the

[START]

close

psig

(27.6 ±

the

VOLUME DELIVERED

touchswitchisreleased,

Micro,

setting).

PWA

inches

the

MIN

then

touchswitch.

the

three-way

10.3

message

display

the

set

Press

TEST

is suspected ofcausing

and Test To perform

(46 ± 15 cm)

midlineofthe

position. Press

MIN,

kPa).

should

should

typeAorBis

[RESET]

above

cassette.

the

VOLUME

and

observe

After

stopcock. At

appearinthe

flash

display

the

pressure

displayed

then

release

the

and

the

three

000.

Repeat

read:

respectively.

Note:

Note:Itis

of

7.

Start

[SILENCE]

If

8.

Press

Note:

differences,

pressure

430-01858-003(Rev. 5/95) 5 - 6

Steps5and6for

8.0±2.5

After

the

possibletogetanabsolute

the

absolute

the

pump.

touchswitch;

the

display

[RESET]

The

occlusion

resultinginthe

readings.

psig

MAX

pressure

At

reads

and

MID

and

(55.2 ± 17.3 kPa)

pressure

occlusion

the

DIF

PRES,

disconnect

pressure

test,donot

tolerance

(15 ±

VOLUME DELIVERED

repeat

the

reading

overall

MAX

pressure

(15.0±4.5

4.5

the

DPM.

varies

toleranceof±

pressures;atocclusion,

and

psig

step.

12.0 ±

release

readingatthe

psig,

(103.5

widely

3.5

psig (82.8 ±

the

three-way

103.5±31.1

±31.1

display

duetocassette

4.5

kPa))

should

psig

LifeCare

(31.1 kPa) for

and

MAX

press

HomeCare

pressure

24.2

stopcock.

position

kPa).

and

read

ABS

and

mechanism

Model

should

kPa),

because

hold

the

PRES.

absolute

4 Series

^J

5.2.7

52

PERFORMANCE

VERIFICATION

TEST

HIGH

FLOW

(SIMULATED)

The

high

flow

alarm

With

the

equipment

1.

Connect

chamber.

2.

Set

to

position

3.

Usingapencilorsimilar

about

display

the

4.

Observe

Turn

5.

Set

6.

Press

strokes,

-

Alarm

the

the

delivery

twiceasecond;

flashes

other

models.

the

the

main

the

dose

Model4,4H,

Micro:

the

observe

tone

ALARM

AND

test

and

setupas

flow detector to

rate

to 1

A).

Press

the

note

HI

FLOW

The

DELIVERY RATE

control

limitto50

99.9

ml/hr;

[START]

4P:

the

switch

300

set

touchswitch. After

following:

AND

AUDIBLE

the

low flow

described

the

ml/hr,

[STARTJ

object

that

after

five

pump

ml,

ml/hr

type

operations

display

to

and

switchtoposition

LOW

alarm

FLOW

ALARM

test

canbeperformedinone

ALARM

TESTS

sequence.

in Section 5.2.4, TestSetup, proceedasfollows:

rearofthe

and

the

touchswitch.

interrupt

the

alarm

strokes

flashes

LOAD

set

the

pump,

dose

the

sounds

for

cease.

OFF

RECHARGE.

delivery

butdonot

attach

limit to50ml (Micro:

drop

path

within

and

the

VOLUME

the

000.

Model

Press

4P

the

and

[RESET]

rateasfollows:

it to

Set

type

the

flow

DELIVERED

flashes

touchswitch.

the

switch

detector

FLOW

A

the

pump

completes approximately five

drip

for

- VOLUME

the

- DELIVERY RATE

7.

Switch

volume

8.

Press

5.2.8

DELIVERY

Note:

re-release

Laboratories

To

Accuracy

perform

1.

Set

a

25mlgraduated

Note:

(ASTM

DELIVERED

Model

the

the

alarm

changes.

[RESET]

4P,

and

volume

touchswitch.

display

ACCURACY

testingisfor

test.Ifthereisany

(see

Section

the

delivery

up

the

equipment

Useacylinder

E694)orbetter

6.1,

accuracy

cylinderorburette.

display

FLOW

levels

and

KVO

flashes

through

Confirm

alternates

for

KVO

LOW,

between

the

Models4,4H,

rateof4

medium,

alarm

and

LOW

ml/hr

messages

TEST

informational

concernasto

Technical

test,

proceedasfollows:

as

showninFigure5-1, Delivery Accuracy

or

burette

(with

0.2mlgraduations).

purposes

the

accuracyofthe

Assistance).

certified

only,

or

calibrated

andisnottobe

FLOW

and

(1.0

ml/hr

and

HIGH. Verify

cease.

pump,

to

ClassAtolerances

and

KVO

Micro

for

the

used

returnitto

Test

Setup,

for

Micro)

that

as

Abbott

using

the

a

2.

Check

3.

Attach

theIVset

TechnicalService Manual 5 - 7 430-01858-003 (Rev. 5/95)

the

cassette

a flow

and

and

tubing

detectortothe

prime.

Turn

drip

the

for

air

chamber.

main

and

clearifnecessary.

Attacha21-gauge

control

switchtoLOCK/ON.

Butterfly

needle

to

Section5MAINTENANCE

4.

Tap

the

needle

5.

Insert

is

dry).

the

Press the

DELIVERED.

6.

Set

the

delivery

-

Model4,4P:

-

7.

Model

-

Micro:

Press

Verify

4H:

Delivery

the

[START]

the

volumeinthe

AND

SERVICE

to eliminate

Butterfly

Press

rate

Delivery

Delivery

TESTS

any

needle

[LIMIT

into

ON/OFF

[CLEAR]

and

dose

rate:

rate:

350

rate:

99.9

touchswitch

graduate

drop of

the

wateronits

25 ml

graduated

CLEAR]

toclear

limitsasfollows:

400

ml/h;

VOLUME

ml/h;

ml/h;

and

is between 19

Dose:

Dose:

Dose:

allow

20

the

tip.

cylinder (confirm

touchswitch

DELIVERED.

20

ml

20

ml

ml

pumptooperate

and

21 ml.

twice

until

the

to reset

the

dose

cylinder

DOSE

end.

J

>mcs/

5.2.9

Note:

OFF

8.

Turn

9. If

Laboratories

Priortoeach

RECHARGE to

the

main

the

test

PIGGYBACK

The

piggyback

proceedasfollows:

1.

Set

2.

With
the

3.

Set

[PIGGYBACK]

secondary

detector

extinguishes

4.

Press

5.

Observe

and

6. Aftera

PRIMARY

testisconducted

up

the

the

dose

DOSE

the

primary

to

the

that

XXXX ML

rninimumof12

control

fails,

retest

(see

TEST

pump

limit

LIMIT

rateto200

touchswitch

dose

the

and

[START]

pumping

alternately,

and

XXXX ML

delivery
place

switch

accuracy

the

pistoninthe

to

withanew

Section

6.1,

Technical

(MODEL

on

the

as

describedinSection

off,

remove

display

limit

drip

the

touchswitch

and

NO FLOW DET

ml/hr,

and

to1ml.

chamber.

PIGGYBACK

occurs,

and

the

the

seconds,

alternately,

test,

turn

the

START/HOME position.

LOAD

OFF

RECHARGE.

cassette.Ifthe

Assistance).

4P

ONLY)

Model 4P only. To

5.2.4,

TestSetup.

the

flow

detector

and

the

set

the

secondary

Reconnect

Confirm

display

from piggyback

VOLUME DELIVERED

rotating

verify

that

and

legend

the

the

from

display

primary

the

flow

the

NO FLOW

mode.

barisdisplayed.

VOLUMEDELIVERED

rotating

main

control

test

fails

perform

the

pump

legend

dose

rate

detector

iUuminates.

illuminate.

limitto1

to

display

barisdisplayed.

switchtoLOAD/

again,

the

300

and

DET

contact

piggyback

and

observe

ml.

ml/hr,

attach

display

shows

display

Abbott

test,

that

Press

the

and

the

the

flow

legend

SECNDRY

shows

Note:

otherwise,

7.

When

verify

8.

Press

430-01858-003 (Rev. 5/95) 5 - 8 LifeCare and HomeCare Model 4

The

a CHK RATE

KVO

and

that

the

the

[RESET]

secondary

DOSE

rate

message

END

must

be

flashes.

occur

alternatelyonthe

DOSE DELIVERED display

touchswitch.

equaltoor

shows

greater

VOLUME DELIVERED

0001

ml,

than

and

the

pumping

primary

display,

stops.

rate;

Series

5.2.10

5.2

PERFORMANCE

VERIFICATION

TEST

BATTERY

To perform

1.

Disconnect

2.

Set

into

CHARGING

the

battery

the

DMMtomeasure

the

ACC.

DMM readingisgreater

3. Connect the

the

DC voltage reading,

4.

Disconnect

5.2.11

MALFUNCTION

To perform

1.

2.

3.

4.

5.

the

malfunction simulation test, proceed as follows:

Insert

pump.

Press

the

malfunction

the

DELIVERED

sounds.

Press

the

[RESET]

Press

the

[START]

Disconnect

LOAD/OFF

TEST

charging test, proceed as follows:

the

pump

connector

pump

the

accessory

from AC (mains) power.

VDC,

then

insert

and

connect

than

or equalto +8.4 VDC.

to AC (mains)

but

connector

not

power;

greater

cable.

SIMULATION

[START]

display,

touchswitch

touchswitch

the

malfunction

RECHARGE,

simulator

touchswitch.

000

flashes

then

plug

Observe

on

and

confirm

and

confirm

simulator

remove

one

the

endofthe

other

endtothe

accessory

DMM.

connector

Verify

the DMM reading should be greater

than

+11.0 VDC.

TEST

into

the

ACC.

connectoronthe

the

DELIVERY

plug,

the

cassette.

MALFUNCT

the

alarm

pumping

turn

flashes

RATE

continues.

does

the

main

display,

not

occur.

control

on

and

that

backofthe

the

VOLUME

the

switch

cable

the

than

alarm

to

5.2.12

ELECTRICAL

To perform

analyzer,

1.

2.

5.2.13

END

If all

tests

to

Section6,Troubleshooting.

TechnicalService

the

electrical safetytest, connect

then

proceedasfollows:

Connectacase-to-ground

level

than

Using

AC

(mains)

0.1

ohm

OF

have

switch.

50

the

PERFORMANCE

Manual

\u\.

safety

connector

(100

been

The

milliohms).

successful,

SAFETY

leakage

analyzer,

and

TEST

lead

from

current

measure

the

return

the

pump

AC (mains) powercord to

the

safety

shouldbeat

the

pole

clamp

VERIFICATION

the

pump

5 - 9 430-01858-003(Rev. 5/95)

analyzer

least2microamperes

resistance

shaft

to service. If

sockettothe

between

Resistance

anyofthe

the

should

TEST

ground

the

audible

(pA)

lugofthe

not

tests

safety

alarm

but

less

exceed

fail, refer

Section 5 MAINTENANCE AND

SERVICE

TESTS

5.3

BATTERY MAINTENANCE j

Proper battery use

the battery pack require replacement, refer to

Whenthe pump is neither connectedtoAC(mains)

retains50percentofa full

5.3.1

DEPTH

OF

Whenthe batterypack is discharged

sounds and the

CAUTION:

power.

When

and

maintenance are essential for optimum pump operation. Should

charge

DISCHARGE

BATT

LOW

message is illuminatedon the front panel display legend.

the

low

battery

foratleast

below

7.4

alarm sounds,

Section

one

VDC

7.3.3,

power,

month.

Battery

nor operating,the battery pack

PackReplacement

whilethe pumpis operating,analarm

connect

the

pump

to

AC (mains)

Although continuing to operate the pump is not recommended, the battery pack provides

power

activates

If

compromised

a

the

lead

battery

until

discharged to approximately 7.0 VDC. At

and

pump

pack

duetosulfation,areductionincharge

precipitate.

operation

ceases.

is frequently discharged to

the

7.0

dead

battery

carrying

VDC,

ability,

the

dead

threshold,

and

the

battery

battery

formation

alarm

life is

of

5.3.2

RECHARGING

Recharging
recommended
maximizeavailable

not

havetobeonfor

Note:Apermanently

occurs

that

any

time

the

pump

battery

the

damaged

be

charge

batterytorecharge.

the

pump

connected

during

battery

is

connected

to AC (mains) power

transportorambulation.

pack

cannotberechargedtofull

to AC (mains) power.

whenever

The

power

capacity.

It

practicable

switch

does

is

to

430-01858-003 (Rev. 5/95)

5-10

LifeCareand HomeCareModel4 Series

5.4

5.4

BATTERY

CIRCUIT

ALARM

AND

CHARGER

TESTS

BATTERY

CHARGER

The

battery

1.

2.

3.

5Zl

TEST

Equipment

Q

DMM,

Q

Parallel

Q

Adjustable

5Z2

circuit

Low

battery

Battery

Battery

EQUIPMENT

required for

Fluke

network,

CIRCUIT

alarm

alarm

shutdown

charging

Model

DC

power

TESTS

and

charger

test

test

circuit

test

REQUIRED

the

battery

77,orequivalent

P/N

561-88419-001

supply

ALARM

tests

consistofthree

circuit alarm

(0-10 VDC)

and

AND

tests:

charger

testsisas

follows:

LOW

To

BATTERY

perform

1.

Disconnect

2.

Remove

Battery

3.

Set

power

Monitor

4.

Turn

muminated

touchswitch.

5.

Slowly

legend.

battery

5.4.3

BATTERY

To

perform

the

low

battery

the

the

battery

Pack

Replacement, for

the

DMMtomeasure

supply

the

reduce

voltageonthe

the

voltage

main

When

leads

on

the

the

SHUTDOWN

the

battery

ALARM

alarm

pump

the

from

pack

to

with

control

front

power

BATT

DMM

shutdown

test,

AC

cover

VDC,

the

the

switch

panel

supply

LOW

test,

TEST

proceedasfollows:

(mains) power.

on

the

instructions

then

disconnect

adjustable

DMM.

DC

to LOCK/ON.

display

test

voltage

message

should

starts

read

TEST

proceedasfollows:

bottom

on

battery

power

legend

while

between

of

the

the

battery

supply,

Confirm

at

all

observing

flashing

+7.35

pump.

pack

times.

and

and

See

removal.

pack

adjusted

the

BATT

Press

the

front

the

alarm

+7.65

and

VDC.

Section

connect

to

+8.5

message

the

panel

sounds,

7.3.3,

the

VDC.

is

(START)

display

the

•^tex

1.

Continuetoreduce

2.

The

voltage

shuts

Technical Service Manual

down.

must

the

read

power

between

supply

+6.85

voltage

and

5-11

until

+7.15

the

VDC

pump

immediately

shuts

430-01858-003 (Rev. 5/95)

down.

before

the

pump

Section5MAINTENANCE

3.

Turn

the

main

AND

control

SERVICE

TESTS

switchtoLOAD/OFF

RECHARGE.

Note:

voltage

5.4.4

BATTERY

To

check

2. Connect

3.

4.

5.

the

1.

Disconnect

described in Section 7.3.3, Battery PackReplacement Disconnect

from

Connect

and

following:

-

Pump

-

Pump

Turn

Remove

the

The

reading

CHARGING

battery

the

internal

the

the

measure

models
models

the

main

the

battery

voltage readingatthis

takeninSection

5.4.2,

CIRCUIT

charger

the

pump

parallel

pumptoAC

the

control

parallel

pack

circuitry, proceedasfollows:

from AC (mains) power. Remove

charging

circuit

networktothe

(mains) power,

voltage

with
without

network.

wires

boost

boost

switch

are

across

charger

charger

to

Reconnect

not

pinched.

point

must

beatleast

Low

Battery

TEST

(red

and

black

charging circuit plug.

turn

the

main

the

network.

PWA:

15.0

VDC±2.5

PWA

9.40

LOAD/OFF

RECHARGE.

and

re-install

Replace

Alarm

the

leads).

control

The

DMM

VDC±0.1

the

the

battery

0.3

VDC

less

Test,

Step

5.

battery

switchtoLOCK/ON,

should

VDC

VDC

battery

pack

pack

the

pack.

cover.

battery

indicate

Verify

than

cover

the

as

pack

the

that

\

W^

430-01858-003(Rev. 5/95)

5-12

LifeCare

and HomeCare

Model

4 Series

5.5

5.5

PVT

DATA

FORM

PVT

List

Number:

Inspection

1.

Inspect

foreign

2.

Inspect

3.

Inspect

4.

Verify

damage.

5.

Inspect

material.

6.

Inspect

housing

7.

Inspect

8. Verify

do

not

9. Verify
Inspect

10.

Velcro®

11.

Inspect

12.

Inspect

DATA

the

electrical

material.

the

case

for

the

pole

clamp

that

the

main

the

front

the

ACC.

and

brokenorbent

the

faceplate for

that

the

four

have

excessive

that

all

screws

the

flow

detector

strap is present.

any

accessories

the

plunger

FORM

cord

and

cracksorstains.

and

pads

and

and

bottom

control

rear

FLOW

wear.

are

guide

switch

panel

DET.
pins.

any

pressure

tight

for spillsordamage

for spillsordamage.

for

Serial

nurse-call

for

switches

connectors

damage.

has

no

cable

for

damage.

pads

cracksorother

Number:

for

damage

cracksorother

damageorforeign

for

cracked

(feet)

are

present

and

verify

that

damage.

or

and

the

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass
Pass

Pass

Pass

Fail,

Fail.

Fail.

Fail.

Fail.

Fail.

Fail.

Fail.

Fail.
Fail.

Fail.

Fail.

L^

^^

Dry

Cassette

1.

Verify

2.

Verify

bindingordragging.

3.

Verify

right

4.

Turn

remove

Start-Up

Verify

1.

that

Turn

LED

2. Verify

produce

3.

Disconnect

BATT

Test

thatadry

thatthe

that

sidesofthe

the

main

the

Test

theTVsetisprimed.

the

main

segments

that

the

illuminates.

cassette

main

the

rear

cassette.

control

cassette.

control

and

wiggling

NO FLOW

the

unit

slides

control

locking

Verify

display

the

from

switch

tabs

switch

switch

flow

DET

to LOAD/OFF RECHARGE

that

to LOCK/ON

legends

detector

message.

AC (mains) power,

into

are

the

rotates

seated

light

the

shroud

properly

on

cassette

and

momentarily.

connection

and

easily.

without

both

the

withdraws

verify

that

does

not

verify

left

and

freely.

that

and

all

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Fail.

Fail.

Fail.

Fail.

Fail.

Fail.

Fail.

Technical

Service

Manual

5-13

430-01858-003

(Rev.5/95)

Section5MAINTENANCE

AND

SERVICE

TESTS

Pressure

1.

2.

Test

and

Press

and

hold

DELIVERED

display

MIN-MID-MAX

Check

occlusion

Silence

[SILENCEl

Switch

and

indicates

settings

(i.e., MID PRES).

pressureatMIN

Test

verify

the

that

correct switch

pressure

the

setting

VOLUME

MIN: (Specification = 4 ± 1.5 psig (27.6 ± 10.3 kPa))

3. Verify OCCLUDED

4. Verify

the

5. After

that

after

VOLUME DELIVERED

releasing

typeAorBfor

6.

Check

occlusionatthe

MID:

MAX:

7.

Check

display

absolute

indicates

MAX: (Specification = 15 ±

High

Flow

Alarm

Set

the

Press

1.

2.

3.

delivery

[START],

The

alarm

The

FLOW

The

DELIVERY RATE

rateto1

then

toneisactivated

message

flashesinVOLUME DELIVERED display.

pressing

[SILENCEl, DIF PRESisdisplayed

display.

[SILENCEl verify

micro)isdisplayed

MID

(Specification

(Specification = 12 ±

occlusion

DIF

Test

interrupt

alarm.

PRES,

ml/hr

the

and

= 8 ±

repeat

(01.0

flow

that

for

MAX

2.5

3.5

If

VOLUME

test.

4.5

for

micro).

detector

pressure

one

flash.

pressure

psig

(55.2±17.3

psig

psig

rapidly

switch

(82.8 ±

DELIVERED

(103.5

flashes

display

flashes

000

setting

and

for

record.

in

setting

(set

switch settings.

kPa))

24.2

kPa))

±31.1

and

kPa))

observe:

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Fail

>^ay

Fail

Fail

Fail

Fail

Fail

Fail

Fail

Fail

Fail

Fail

Low

Flow/Audible

Models4,4H,

Micro:

Press

set

[START]

1.

Alarm

2.

VOLUME DELIVERED

and

the

delivery

and

toneisactivated

3. DELIVERY RATE

4.

Switch

HIGH.

Delivery

Deliver20ml

Use

the

Models4,and

Model
Micro:

the

Verify

Accuracy

following

4H:

350

99.9

ml/hr.

alarm

intoa25

4P:

ml/hr

Delivery:

Piggyback

Set

primary

secondary

1.

Press

DELIVERED

alternately,

2. Verify

Test

rateto200

rateto300

[START]

and

that

afteraminimumof12

DELIVERED
and

the

rotating

3.

Verify

display

LIMIT

thatafter dose limitis met, the

shows

display

Alarm

4P:

Test

set

rateto99.9

verify

that

display

volume

that

the

Test

ml

graduate,

rates:

400

ml/hr

ml

(Range=19to21 ml)

(Model

4P

ml/hr,

ml/hr,

and

verify

display

display

the

shows

rotating

shows

barisdisplayed.

KVO

and

shows

0001

the

delivery

after

display

flashes

levels

volume

Only)

dose

dose

pumping

DOSE

ML.

rateto300

ml/hr

and

select

five strokes:

flashes

through

changes.

limit

limit

SECNDRY

barisdisplayed.

FLOW

004

(01.0 for Micro)

LOW,

0.2

graduations.

to 1mland

to 1 ml.

occurs,

and

seconds,

PRIMARY

and

VOLUME

END

alternately,

ml/hr.

set

and

KVO

medium,

the

the

VOLUME

XXXX ML

the

VOLUME

XXXXML

DELIVERED

andthe

type

A

and

alternately,

DOSE

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Pass

Fail_

Fail

Fail

Fail

Fail

Fail__

Fail

Fail_

s^/

}

****

430-01858-003(Rev. 5/95)

5-14

LifeCare

and HomeCare

Model

4 Series

5.5

PVT

DATA

FORM

Battery

1. With

accessory

DMM

Battery

Acceptable
Connect

2.

Charging

Acceptable

greater

Malfunction

1.

Insert

and

and

2.

Press

3.

Press

Electrical

1. Record

(Acceptable

Record

2.
(Acceptable

Charging

the

pump

Test

disconnected from AC (mains) power,

connector

and

record

Voltage:

resultisgreater

AC (mains)

Batt

Voltage: VDC.

resultisgreater

than

11.0

Simulation

the

malfunction

press

[START].

an

audible

alarm

[RESET]. Verify
[START]. Verify

Safety

leakage

Test

current:

result:2to50nA)

ground

lug

result:<0.1

cable

the

reading:

VDC.

Power

VDC.

Test

simulator

Verify

occurs.

alarm

pumping

resistance:

into

the

ACC.

connector;

thanorequalto8.4

and

record

than

reading:

the

readinginStep1,but

plug into

that

MALFUNCT

continuestosound.

does

not

occur.

ohm)

the

and

VDC.

ACC.

000

insert

connect

connector

(Rate)

the

to

not

flash

Pass

Pass

Pass

Pass
Pass

Pass

Pass

Fail__

Fail_

Fail_

Fail_
Fail__

Fail

Fail

Performance

Test

Equipment

Pressure

Safety

DMM#

Gauge

Analyzer

Verification

#

#

Test

performed

by

Date

Technical

Service

Manual

5-15

430-01858-003

(Rev.

5/95)

4 Series

Model

and HomeCare

LifeCare

5-16

430-01858-003 (Rev.5/95)

left

blank.

This

page

intentionally

ANDSERVICE TESTS

MAINTENANCE

Section 5

Section

6

TROUBLESHOOTING

This

error

the

6.1

section

codes,

ACC.

contains

and

connector

informationonobtaining

troubleshooting

asatest

the

connector.

pump.

The

technical

section

assistance,

also

provides

alarm

messages

and

informationonusing

TECHNICAL

For

technical

manuals

Operations.

Send

all

From

outside

ContactanAbbott
information

Series

Infusion

63.

assistance,

within

authorized,

the

about

Pumps.

ASSISTANCE

product

the

United

prepaid

United

States,

Laboratories representative or call Technical

the

Abbott

return

States,

returnstothe

Technical

960

Mountain

contact

authorization,

contact

1-800-241-4002

Abbott

Laboratories

Support

Linda

View,

the

Abbott

following

Operations

Vista

Avenue

California

nearest

andtoorder

Laboratories

address:

94043

Abbott

Laboratories extended warranty program for

parts,

accessories,

Technical

Support

Laboratories representative.

Support

Operations for

the

Model 4

or

AUDIBLE

An

audible alarm

tone

patternofshort-long-short-long.

pumpisin

detects

Technical

an

alarm

Service

an

Manual

ALARMS

sounds

alarm

condition.

state.

eitheracontinuous

These

The

pump

automatically

6 -1 430-01858-003

alarm tone, indicating a power failure, or a

short-long-short-long

enters

an

alarm

tones

state

indicate

whenever

(Rev.

the

5/95)

it

Section6TROUBLESHOOTING

6.3

ALARM

CONDITIONS

When the pump enters an alarm condition, access the alarm history data screen as

described

conditions occur,

alarm and failure codesas they appear on the

malfunctionmodeand in the alarm and failurehistory.

in

Section 6.5, Obtaining an Alarm History. If one or more alarm codes or

consult

one of

the

followingtables: Table6-1, AlarmCodes, details

VOLUME

DELIVERED

Table

6-2through

display duringthe

Table

the

6-12list

failure symptoms by category and provide alarm codes, possible causes, and corrective

actions for each condition. For additional information, referto

Operation: Section4.3.1.3, Local

6A

ALARM

CODES

Control

Mode;

and Section 4.3.1.6, System

Section

4.3.1,

Failure

Modes

Mode.

of

A rolling history of up to 32 alarms and pump failures is available when the pump is

connected to AC(mains) power or batterypower. Toaccess the alarm historyscreen, refer

to

Section

Note: Loss of
The

command

codes

6.5,

alarm

fromaremote

in

order

ObtaininganAlarm

both

AC (mains)

and

failure

of

occurrence.

history

terminal,

History.

and

DC (battery) power will

is also available

the

pump

will

through

transmit

erase

alarm

the

Dataway

the

last32alarms

and

I/O

failure

port

and

data.

Upon

failure

6.5

OBTAINING

When

mode,

1.25

display.

continuously
displayedinsequence

Table

Alarm

Alarm

touchswitches

Alarm

the

pumpisinamalfunction

press

secondstocause

6-1,

codes

codes

codes

the

During

while

Alarm

Codes,

01

through

21

through

simultaneously,

80

through

[SILENCEl

an

AN

alarm

occlusion

the

touchswitches

when

describes

17

76

87

ALARM

and

[RESET]

and

failure

alarm,

the

touchswitches

pump

are

accessible

are

accessible

or

through

are

I/O

stateineither

touchswitches

codestoappear

the

message

are

pressed;

alarm

through

eitherbypressing

the

RS-485

RS-485

Dataway

HISTORY

local

control

pertainingtothe

the

remaining

are

released.

codes.

the

RS-485

Datawayata

error

modeorremote

simultaneously

on

the

VOLUME DELIVERED

applicable

Dataway

the

[SILENCE)

remote

codes.

control

for

at

least

alarmisdisplayed

messages

only.

and

station.

are

[RESET]

•>^fr

430-01858-003 (Rev. 5/95)

6-2

LifeCare

and

HomeCare Model 4

Series

Table

6-1.

Alarm

Codes

6.5

OBTAINING

AN

ALARM

HISTORY

^ijig/

L,

Code

01

02
04

05

06

07
08

10

11

12

13
14

15

17

21

22
23

24

25

Explanation

OPERATION

High flow

Low

flow

Occluded,

Occluded,

Dose

Check

Wrong

Battery

Reset

Flow

Dataway

absolute

differential

end

cassette

cassette

power

time-out

detector

lost

(low algorithm)

(interrupter detected)

low

inoperative

Occluded, amplifier saturation pulsedatlowfrequency

Check

Check

CORE

ROM

Critical

Failure monitor

Failure monitor

Processor

DISPLAY

rate

dose

failure

data

corrupted

does

does

self-check

not

reset

processor

when

pulsedathigh frequency

not reset processorwhen pulsed at lowfrequency

failure

31
32
33
34
35

41

42
43

51

61
63
64
65

66

67

Message

Numeric (rate, dose,

Numeric display

Numeric
Numeric

EXTERNAL

display filled, reply not received

dose

limit)

display shift registerfailure

display
display

CONTROL

segment

digit driver failure
data

failure

failure

External control UARTframing error

External

RAM

read/write

failure

Accessory port failure

TOUCHSWITCH

Touchswitch

MECHANISM

Motor

will

Motor slipping or

Motor

slipped3timesin10

Motor

stalled

Volume

not

owed

closed

home

stuck

too

longer

great

(motor slipping)

than

cycles

164

seconds

Rate/flag conflictasdetected by software

Technical

Service

Manual

6-3

430-01858-003 (Rev. 5/95)

Section6TROUBLESHOOTING

Table

6-1.

Alarm

Codes

Code

71

72

73

74

75

76

80
81
82

83

84

85

86

87

Explanation

MISCELLANEOUS

Power-up line

Software

not

does

executed

not go high

within5ms

within

160 ms

Processorfailure detected byfailure monitor

Pressure

A/D

sensor

amplifier saturated

converterfailure

(0V,

2.5V,

5Vtests)

Microcassette interrupter failure

DATAWAY

(RS-485 ONLY)

Invalid request; not in remote

mode

reset

not correct

dose

off

dose

operate

checksum

off

error

Invalid request; not in

Invalid request;

Invalid request; primary
Invalid request; secondary

Invalid request; not in

Transmission

Illegal

command

incorrect,

6.6

PUMP

Before

LOAD/OFF

or

Inspecting
Table

possible
by

in

troubleshooting

malfunction

6-2

causes

observation

memory.

No

audible

TROUBLESHOOTING

an

alarm

RECHARGE

persists,

the

Pump,

through

and

only,

Symptom

alarm

thentoLOCK/ON

inspect

then

perform

Table

6-12

remedies.
anddonot

Table

6-2.

Defective piezoelectric

Defective power supply PWA

the

the

show

Fault

cause

Troubleshooting

or

malfunction,

pump

corrective

failure

symptoms

the

Possible

turn

the

main

and

allow

the

self

testtocomplete.Ifthe

for

signsofdamageasdescribedinSection

action

symptoms

listed

specifiedinthis

by

category,

withoutanalarm

control

section.

and

code

switch

describe

are

detected

pumptosoundanalarmorstoreanalarm

Audible

Cause

alarm

Alarms

Replace

(see

Replace

(see

Corrective

piezoelectric

Action

Section 7.3.24)

power

supply PWA

Section 7.3.19.1)

alarm

to

alarm

5.1.1,

their

code

Unabletochange

volume

Continuous

audible

all LED displays blank

430-01858-003 (Rev. 5/95)

alarm

alarm,

Defective

alarm

level

Discharged battery

6-4

switch

Replace

(see

Section 7.3.15)

Recharge

LifeCare

and

alarm

battery

HomeCare

level switch

Model4Series

Table

6-3.

Troubleshooting

Fluid

Flow

6.6

PUMP

TROUBLESHOOTING

Alarm

Code

01

LED

Message

or

Symptom

High flow Drip

more

fill

Drip

above

Excessive agitation of

drip

during patient

Airin line (when using

vented

flexible containers only)

Possible

chamber

than

one

Cause

forming

drop

stroke of pump

chamber

score

chamber

filled

mark

or IV line

ambulation

pump

set

and

per

Corrective

ReplaceIVset

system

Action

(see

operating

Drain fluid from drip

chamber

below

closureofslide
suspended

(see

manual).

[RESET]

Stabilize

Remove

and

sterile

from

and

until fluid is

mark.

system

and

flow

filter from

cap

off

protective

spike.

continue

Check

drip

operating

Press

[START]

detector

vent

Reprime

clamp

chamber

with

cover

manual

just

on

spike

set

Dirty or defective flow

detector

Defective

flow

detector

circuitry

Cleanorreplace
detector
operating

Replace

PWA

(see

(see

system

manual)

power

Section 7.3.19.1)

flow

supply

Technical

Service

Manual

6-5

430-01858-003

(Rev.

5/95)

Section6TROUBLESHOOTING

Table

6-3.

Troubleshooting

Fluid Flow

Alarm

Code

02

Low

LED

or

flow

Message

Symptom

Flow

Possible

detector

Cause

not

positioned correctly on

drip

chamber

Fluid level too high in

drip

chamber

Tilted drip

chamber

Empty fluid container

Airin

cassette

chamber

Less

than

fill

stroke of pump

one

pumping

drop

per

Corrective

Position

correctly

operating

flow

(see

manual)

Action

detector

system

Adjust fluid level to

check

slide

clamp

closure

Adjust drip

vertical

Replace

Reprime

Upper

or

airincassette

pumping

Open

set

(see

chamber

container

set

line

clamp

chamber.

clamporreprime

system

operating manual)

mark,

to

closed

04

Occluded,

absolute

Dirtyor defective flow

detector

Defective

flow

detector

circuitry

Excessive

Closed

backpressure

clamp on IV

set.

Cleanorreplace

detector

(see

system

operating manual)

Replace

PWA

(see

power

Section

supply

7.3.19.1)

Eliminate

restricted

Replace

(see

Open

cause

flow

flow

detector

Section 7.3.9)

clamp

flow

of

430-01858-003 (Rev. 5/95)

6-6

LifeCare

and

HomeCare

Model4Series

Alarm

Code

LED

or

Symptom

Table

Message

6-3.

Troubleshooting

Possible

Fluid

Cause

Flow

6.6

PUMP

TROUBLESHOOTING

Corrective

Action

05

06

07

08

Occluded,

Dose

end

CHECK

Wrong

cassette

differential

CASSETTE

Restrictions,

pinched
clogged

Pressure

such

as

tubing

or

filter

setting switch

inwrong position or faulty

Pressure

saturated

Dose

dose

Cassette

sensor

delivered

limit

not properly

PWA

equals

primed

Set

type switch in wrong

position (Micro only)

Wrong

cassette

installed

Find

and

remedy

restriction

Set

pressure
proper
replace

position or

(see

7.3.31)

Perform

calibration

pressure

and

Section 7.2.4)

Clear

dose

delivered

Reprime

Change

cassette

set

type switch

setting

Install proper

line

switch to

Section

sensor

test

cassette

(see

Technical

Service

Manual

6-7

430-01858-003 (Rev. 5/95)

Section6TROUBLESHOOTING

Table

6-3.

Troubleshooting

Fluid Flow

Alarm

Code

12

Flow

LED

Message

or

Symptom

detector

inoperative

Possible

Flow

detector

connected

DET.

connector

to

Cause

not

FLOW

of pump.

Defective

Flow detector

flow

detector

presence

detection circuitry

defective

Corrective

Connect

(see

system

at

back

manual)

Replace

(see

Section 7.3.9)

flow

operating

flow

Action

detector

detector

Check DRPCH signal at

P6, pin43on motor

driver PWA. Signal

should
1
detectorisnot

connected

than1VDC

detectorisconnected.

VDC

be
when

less

and

flow

when

than

greater

flow

If

DRPCH signal is

incorrect,
supply PWA

replace

(see

power

Section 7.3.19.1).

Repair

connections

any

faulty

14

Occluded, amplifier failure

Dirtyflow

or

terminals

detector

pins

Misadjustedordefective

pressure

measuring

system.

Replace

connector

flow

pins

detector

(see

Section 7.3.11), or flow

detector

(see

Insert primed
and

not

pressure

pins 1

plug terminals

Section 7.3.10)

cassette

turn

pumponbut

start.

Measure

filter output,

and

5 on

motherboard. Voltage

should
+0.25

not,

be

and+0.97

see

between

Section

VDC.

5.2.6

do

J7,

If

430-01858-003 (Rev. 5/95)

6-8

LifeCare

and

HomeCare

Model4Series

Table

6-3.

Troubleshooting

Fluid

Flow

6.6

PUMP

TROUBLESHOOTING

Alarm

Code

15

17

N/A

LED

Message

or

Symptom

Check

Check

Pump

than

delivers

than

rate

dose

delivers

less

setting,orconsistently

lessormore

setting.

fluid

fluid

Possible

Delivery rate is

when

pumpisstarted

single

solution

Secondary

Cause

000

mode

rate is

than primary rate in

piggyback

Secondary

rateisgreater

300

Dose

mode

or primary

than

ml/hr

limitis0000

(000.0 for Micro)

cassette

Airin

chamber

Excessive

pumping

backpressure

less

in

Corrective

Set

delivery rate to

desired

value

Increase

to a

value

primary

Reset

ml/hr

Set

value

rate

any

dose

Reprime

Eliminate
restricted

Action

secondary

greater

rate

limittodesired

than

over

set

cause

of

flow

rate

300

Alarm

Code

10

N/A

Symptom

Low

battery

Screen

blank,

inoperative,
alarm

(ornoalarm)

battery

power

Table

6-4.

pump

continuous

Defective

Misadjusted pump

mechanism

Incorrect

frequency

Troubleshooting

Discharged battery

Discharged battery

on

Possible

set

MPU

Battery

Cause

oscillator

Operations

Use

another

Contact
Laboratories

Check

set

Abbott

AS frequency on

MPU PWA U3, pin 6. If

not

1.0

MHz

±0.1%,

replace

MPU PWA

(see

Section 7.3.19.2)

Corrective

Connect

AC (mains)

Connect

AC (mains)

pump

power

pump

power

Action

to

to

Technical

Service

Manual

6-9

430-01858-003 (Rev. 5/95)

Section6TROUBLESHOOTING

Alarm

Code

Symptom

Table

6-4.

Troubleshooting

Battery Operations

Possible

Cause

Corrective

Action

N/A

Operates

connected

power

on battery when

to AC (mains)

BlownAC (mains) power

fuse

Looseordefective

AC (mains)

power

cord

or powercord plug

Replace

Section 7.3.4)

measure

currentat350

fuse

(see

and

AC (mains)

ml/hr

(99.9 ml/hr, micro) with

dose

limit

active

For

100to120

VAC

devices,ifcurrent

exceeds

200

mA

RMS

(175 mA, micro), replace

power

supply PWA

(see

Section 7.3.19.1)

For

220to240

devices,ifcurrent

exceeds

replace

PWA

power

(see

100

Section

VAC

mA

supply

RMS,

7.3.19.1)

Check

power

Replace

Section

power

cord

power

7.3.20

cord

plug

cord

or

and

(see

Section 7.3.21)

430-01858-003 (Rev. 5/95)

Defective power supply

PWA

Replace

(see

Replace

PWA

power

cord

Section 7.3.7)

power

supply

(see

Section

7.3.19.1)

Defective primary circuit AC (mains) voltage on

component

power

supply PWA

between

should

between

measure

Otherwise,

pins 2

and

11

and17VAC.

check

P10

and

replaceasnecessary:

AC (mains)

(Section
Section 7.3.21),

cord

7.3.20

or

P10

(Section 7.3.25),

f

useholder

7.3.4.2

or

Section

(Section

7.3.29), or power supply

PWA

(Section 7.3.19.1)

6-10

LifeCare

and

HomeCare

Model4Series

plug

3

Alarm

Code

N/A

Table

6-4.

Troubleshooting

Symptom

No

battery

short

battery

operation

or

Defective battery

operating time to low battery

alarm

Possible

Battery

Cause

Operat

pack

6.6

ions

Whenever

the

circuit

checked

Section

PUMP

TROUBLESHOOTING

Corrective

pack

battery

should

as

5.4.4

Action

a

defective

is replaced,

charging

be

described

in

Alarm

Code

Table

Symptom

6-5.

Troubleshooting

Discharged battery

pack

/^}—^X

f//r^^Y\\

1

[U<?fiCL/y^\

WB^y

^^^C~~~~\^^

ACC.

CONNECTOR

Possible

Core

Cause

\

MF18027

Failures

Replace

PWA

(see

power

Section

supply

7.3.19.1)

Before recharging, with

pump

disconnected

from

AC (mains) power,

measure

at

pin 6

(pin 5) of

connector).

voltageisless

7.2

battery

battery voltage

and

J23

VDC,

replace

pack

ground

(ACC.

Ifbattery

than

the

(see

Section 7.3.3)

Recharge

Corrective

battery

Action

pack

21

22

23

24

Technical

ROM

failure

Critical

data

Watchdog

processor

high frequency, or,

Watchdog

processor

low

frequency

Service

Manual

corrupted

does

when

does

when

not

reset

pulsed

not

reset

pulsed

Defective

PWA

Defective MPU PWA,

microprocessor,

only memories

Signal

generated

at

program is significantly

higher or lower

reference

at

Defective display driver
PWA, watchdog circuitry

Defective

6-11

ROM,

than

oscillator

MPU

MPU

read

by

PWA

Replace

MPU PWA

Section 7.3.19.2)

Replace

MPU PWA

Section 7.3.19.2)

Turn

main

control

off

and

on

three

times.

pump

still fails,

replace

display driver PWA

Section 7.3.19.2). If

pump
replace

continues

MPU PWA

to fail,

Section 7.3.19.2)

Replace

MPU PWA

Section 7.3.19.2)

430-01858-003 (Rev. 5/95)

(see

(see

switch

If

(see

(see

(see

Section6TROUBLESHOOTING

Alarm

Code

25

Alarm

Code

31

32

Table

Symptom

Sanity

check

failure

Table

Symptom

Message

display filled,

reply not received

Numeric

display

registerfailure

6-5.

Troubleshooting

6-6.

Troubleshooting

shift

Core

Failures

Possible

Defective

PWA

Possible

Cause

ROM,

the

Cause

MPU

Pump

Microprocessordid not

receive proper signal,
indicating not all

characters

to

decoder/driver

were

written

Microprocessorfailed to

clear digit driver shift

registers on display

driver

PWA

Replace

Section 7.3.19.2)

Displays

Check

connection;

display PWA

Section 7.3.19.2) iffaulty

Replace

PWAormotor

PWA

7.3.19.2)

Corrective

MPU PWA

Corrective

for proper

display driver

(see

Action

(see

Action

replace

(see

driver

Section

34

33

35

Numeric display

failure

segment

Numeric display digit failure

Numeric display

greater

than

nine

data

failure

Defective

display,

Defective

displays or

drivers

numeric

segment

numeric

segment

drivers

Defective display driver
PWA, digit drivers

Defective

MPU

PWA

Replace

PWA

display driver

(see

Section

7.3.19.2)

Replace

PWA

display driver

(see

Section

7.3.19.2)

Replace

PWA

display driver

(see

Section

7.3.19.2)

Replace

MPU PWA

Section 7.3.19.2)

(see

430-01858-003 (Rev. 5/95)

6-12

LifeCare

and

HomeCare

Model4Series

Table

6-7.

Troubleshooting

External

6.6

Controls

PUMP

TROUBLESHOOTING

Alarm

Code

41

42

43

Symptom

External UARTframing

error

External

RAM

failure

Accessory port failure

Table

6-8.

Troubleshooting

Possible

Defective

Defective

Cause

UART

MPU

PWA

ACRT1(RATE1)or
ACRT2 (RATE 2)

shortedtoground

Defective

motor

driver

PWA, output latch

circuitry

the

Pump

Corrective

Replace

PWA

7.3.19.2)

Replace

Section

Both
ground or high together.

Check

port,orreplace
pinsasnecessary

Replace

PWA

7.3.19.2)

Touchswitches

motor

(see

Section

MPU PWA

7.3.19.2)

signals

signals,

motor driver

(see

Section

Action

driver

must

clean

shorted

(see

be

Alarm

Code

51

Alarm

Code

61

Symptom

Touchswitch closed longer

than

163

seconds

Table

6-9.

Troubleshooting

Symptom

Motor

will

not

home

Possible

One

or more front

switch

signals

Cause

panel

shorted

ground

the

Pump

Possible

Mechanism

Cause

Misadjustedordefective
motor interrupter

Motor flag is

broken

loose

or

Defective motor voltage

supply

circuit

Corrective

to

Replace
replace

touchswitch

front

assemblyasnecessary

(see

Section 7.3.23)

Corrective

Contact

Laboratories

Contact

Laboratories

Abbott

Abbott

Replace power supply

PWA

(see

7.3.19.1)

Action

or

panel

Action

Section

Technical

Service

Manual

Defective
PWA

6-13

motor

driver

Replace

PWA

(see

motor

Section

driver

7.3.19.2)

430-01858-003 (Rev. 5/95)

Section6TROUBLESHOOTING

Alarm

Code

63

64

66

Table 6-9. Troubleshooting

Symptom

Motorslipping or stuck

Motor slipped

three

times

in10cycles

Volume owed too great
because

motor slipping

the

Pump Mechanism

Possible

Defective

transistor

Cause

motor

Motor flag interrupter

defective

Defective

motor

Motorflag interrupter

defective

Motorflag detector

defective, dirty, broken,
or misadjusted

Defective power supply

PWA, motor flag

circuitry, motor voltage

regulator

Corrective

Replace

(see

PWA

Action

motordriver

Section

7.3.19.2)

Contact

Laboratories

Contact
Laboratories

Contact

Laboratories

Contact

Laboratories

Abbott

Abbott

Abbott

Abbott

Replace power supply

PWA

(see

Section

7.3.19.1),

check

motor

flag circuitry ground of

Q8onpower

PWA,

VMOT

measure

5 ±

supply

should

0.2

VDC

67

N/A

Rate/flag conflict

detected

Volume
because

by software

owed

too

motorslipping

as

great

Motor flag interrupter not

positioned correctly.

Pumping mechanism

binding or

Defective

stuck

MPU

PWA

Defective power supply

PWA, motor flag

circuitry, motor voltage

regulator

Motorflag interrupter

not

positioned correctly.
Pumping mechanism

binding or

stuck

Remove

of

measure

and

(measurements
pump

Replace

Q81;

0.20

ground for

VMOT

between

VDC

in reset)

MPU PWA

base

should

0.05

with

Section 7.3.19.2)

Replace
PWA

7.3.19.1),

(see

power

Section

check

supply

motor

flag circuitry ground of

Q8onpower

PWA, VMOT

measure

Remove

of

Q81;

measure
and

0.20

(measurements
pump

in reset)

supply

should

5 ±

0.2

ground for

VMOT

should

between

VDC

VDC

0.05

with

(see

base

430-01858-003 (Rev. 5/95)

6-14

LifeCare

and

HomeCare

Model4Series

Alarm

Code

Table

Symptom

6-9.

Troubleshooting

the

Possible

Pump

Cause

6.6

Mechanism

PUMP

TROUBLESHOOTING

Corrective

Action

N/A

Alarm

Code

13

80

81

82

Rate/flag conflict

detected

Table

by software

6-10.

Troubleshooting

Symptom

Dataway

N/A

N/A

N/A

lost Dataway

as

Defective

the

communications

Installation

Dataway

Invalid

remote

Invalid

reset

Invalid request;

not

MPU

PWA

Dataway Function (RS-485 Only)

Possible

Cause

error

error

in

connector

request;

request;

not

not in

in

mode

correct

Replace

MPU PWA

(see

Section 7.3.19.2)

Corrective

RefertoLifeCare

4

Series

Action

Model

InfusionPumps

RS-485 Dataway

Technical Specification

Guide

and

Interface

Manual,

430-01761-XXX

P/N

83

84

85

86

87

N/A

N/A

N/A

N/A

N/A

Invalid request; primary

dose

off

Invalid

secondary

Invalid

operate

Transmission

checksum

Illegal

request;

dose

request;

incorrect;

error

command

off

not in

Technical

Service

Manual

6-15

430-01858-003 (Rev. 5/95)

Section6TROUBLESHOOTING

Table

6-11.

Troubleshooting

the

Nurse-Call

Alarm

Symptom

Nurse-call

does

activate during

malfunction

Alarm

Code

11

Reset

minutes

not

alarm

Table

Symptom

more

or

6-12.

than

Possible

Cause

Defective power supply PWA,

nurse-call

Defective

Troubleshooting

five

circuits

main

Pump

longer

control

Miscellaneous

Possible

idle in

than

five minutes

switch

Cause

reset

Corrective

Replace

(see

Section

Replace

Check

circuits

power

main control switch.

continuity of nurse-call

NCC,

Action

supply PWA

7.3.19.1)

NC1,

power supply PWA with main

control

LOAD/OFF

switchinboth

RECHARGE

LOCK/ON positions

Conditions

Corrective

mode

Press

[START],

[RESET],orturn

off

NC2

Action

press

pump

on

and

N/A

71

72

73

Screen

blank, pump

inoperative,

alarm

(or no alarm) on

AC (mains)

Power-up line

high within

power

Software

within 5

Watchdog

processor

160msof

on

not

ms

has

failure

continuous

power

does

not go

executed

period

caught

+5 VDC power supply

has

failed

Loose

PWAs

Defective MPU PWA,

input buffer

Defective ROM, MPU

PWA

Oneormore

improperly

defective

PWAs

connected

Replace
PWA

7.3.19.1)

RefertoSection

Reseat

Replace

Section 7.3.19.2)

Replace

Section 7.3.19.2)

Check

or

PWAs

Iffailure

Abbott

power

(see

Section

PWAs

MPU

MPU PWA

connections

persists,

Laboratories

supply

4.5.6.1

PWA

contact

(see

(see

of

all

430-01858-003 (Rev. 5/95)

6-16

LifeCare

and

HomeCare

Model4Series