To avoid damaging the keypad, do not use sharp
objects (pens, pencils, etc.) to activate switches.
1.1INTRODUCTION
This manual describes how to service the
®
Alaris
8110 Series) and Alaris
Module”,
Syringe Module (“Syringe Module”,
®
PCA Module (“PCA
8120
Series). Use this manual in
conjunction with the following Alaris
documents and software:
•Alaris
®
Point-of-Care unit (“PC Unit”,
Series) / Alaris®Pump Module (“Pump
Module”,
8100 Series) Technical Service
Manual
®
•Alaris
System Directions for Use (DFU)
•Maintenance Software and User Manual
(Software v7.x or later)
PRODUCT NAME NOTE: The “Alaris
System” was formerly known as the “Medley
System” and is described in the Alaris
System DFU.
This manual is intended for personnel
experienced in analysis, troubleshooting,
and repair of analog/digital microprocessorbased electronic equipment.
®
System
8000
®
®
™
CAUTION
Any attempt to service this product by anyone
other than an authorized CareFusion Service
Representative while the product is under
warranty may invalidate the warranty.
If either module requires service while under
warranty, it must be serviced only by
CareFusion authorized service
personnel. Refer to the “Warranty” and
“Service Information” sections of the Alaris
®
System DFU.
The Alaris®System is a modular infusion
and monitoring system intended for use in
adult, pediatric and neonatal healthcare.
The Syringe Module is intended for facilities
that use syringe pumps to deliver fluids,
medications, blood, and blood products
using continuous or intermittent delivery
through clinically acceptable routes of
administration, such as intravenous (
intra-arterial (
IA), subcutaneous, epidural,
IV),
enteral, or irrigation of fluid spaces.
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
1-1
Page 12
The PCA Module is intended for facilities
that use syringe pumps to deliver fluids or
medications using continuous or intermittent
delivery through clinically acceptable routes
of administration, such as intravenous (
IV),
subcutaneous, or epidural.
Refer to the product-specific (Syringe
Module or PCA Module) section of the
Alaris
®
System DFU for a list of features and
detailed information regarding setup and
operation.
1.2PRECAUTION DEFINITIONS
Refer to the Alaris
®
System DFU .
1.3SPECIFICATIONS
Refer to the product-specific section of the
Alaris
®
System DFU.
1.4OPERATING FEATURES, CONTROLS
AND INDICATORS
Refer to the product-specific section of the
Alaris
®
System DFU.
1.5ACCESSORIES
The Syringe Module uses standard, singleuse, disposable syringes (with luer-lock
connectors) and administration sets
designed for use on syringe pumps.
The PCA Module uses standard or pre-filled,
single-use disposable syringes (with luerlock connectors) and non-dedicated
administration sets with integrated antisiphon valves designed for use on syringetype PCA devices. For specific
administration set instructions, reference the
directions for use provided with the set.
1.6ALARMS, ERRORS, MESSAGES
Alarm messages are displayed on the
scrolling Message Display bar. Refer to the
product-specific section of the Alaris
®
System DFU for detailed information.
1.6.1Silencing Alarms
All alarms can be temporarily silenced by
pressing the
SILENCE key on the PC Unit.
1.7TRUMPET AND START-UP CURVES
Refer to the product-specific section of the
Alaris
®
System DFU.
Use only specified syringes and
administration sets with the Syringe and
PCA Modules. Using other syringes or
administration sets can cause improper
instrument operation, inaccurate fluid
delivery or pressure sensing, or other
potential hazards. For a list of compatible
syringes, refer to the product-specific
section of the Alaris
®
System DFU. For a list
of compatible administration sets, refer to
the module’s Administration Set
Compatibility Card/Insert (provided
separately).
WARNING
If an alarm condition on the module occurs
while the audio alarm is silenced, the only
alarm indications will be visual displays and
symbols related to the alarm condition.
WARNING
GENERAL INFORMATION
1-2Alaris
®
Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
1.1INTRODUCTION (Continued)
Page 13
GENERAL INFORMATION
1-3Alaris
®
Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
CHSE HDcheese head (screw)
DB0database zero
DFUDirections for Use
IAintra-arterial
IUIinter-unit interface
NEOInear end of infusion
TR HDtruss head (screw)
VDACvoltage DAC
Table 1-1. Abbreviations, Acronyms
Various abbreviations and acronyms are used throughout this manual. The following are those that are
not commonly known or easily recognized.
Page 14
GENERAL INFORMATION
1-4Alaris
®
Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
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Page 15
2 CHECKOUT & CONFIGURATION
Page 16
Page 17
Chapter 2 — CHECKOUT AND CONFIGURATION
CAUTION
Should an instrument be jarred severely or
dropped, remove it from use immediately. It
should be thoroughly tested and inspected by
qualified service personnel to ensure proper
function prior to reuse.
2.1INTRODUCTION
This chapter describes initial setup and
configuration for the Syringe and PCA
Modules.
NOTE: Due to product changes over time,
configurations described in this chapter may
differ from the instrument under service. If
there are any questions, contact CareFusion
Technical Support.
2.2NEW INSTRUMENT CHECKOUT
Prior to placing a new instrument in use,
perform a check-in procedure using the
Maintenance Software.
When powering up the instrument, verify the
instrument beeps and all display
LED
segments flash. This confirms that the
instrument has performed its self test and is
operating correctly. During operation, the
instrument continually performs a self test,
and will alarm and display a message if it
detects an internal malfunction.
Contact CareFusion authorized service
personnel if the instrument has physical
damage, fails to satisfactorily pass the
startup sequence, fails a self test, or
continues to alarm.
®
Syringe Module (8110 Series)
®
PCA Module (8120 Series)
Alaris
Technical Service Manual
2-1Alaris
Page 18
2.3CONFIGURATION OPTIONS AND
DEFAULTS - SYRINGE MODULE
NOTES:
•Changes to the factory default values are
retained after a power cycle.
•If Factory Default is Yes, then all the
configuration settings are set to their
factory default.
•If Factory Default is No, then one or
more of the configuration settings has
been changed. Setting Factory Default
to Yes sets all configuration settings to
their factory default.
•With the Profiles feature enabled, the
settings are configured independently for
each profile. A hospital-defined, bestpractice data set must be uploaded to
enable the Profiles feature. Date and
Time is a system setting and is the same
in all profiles.
Refer to the Alaris®System DFU for the
following:
•System Settings
•Shared Infusion Settings (Pump Module
and Syringe Module)
•Syringe Module Settings
2.3.1Factory Default Setting
To allow changes to System Configuration
parameters:
1. Hold
OPTIONS key at power up.
2. Press Factory default soft key.
3. Press No soft key.
4. To accept change, press
EXIT soft key.
•Option setting changes and main
System Config - Module
screen
displays.
2.4CONFIGURATION SETUP - SYRINGE
MODULE
NOTES:
• Pressing the EXIT soft key while in a
System Config - Module screen
immediately powers the system down, with
no “Powering Down” display.
• Pressing the EXIT soft key while in a
System Config - Syringe screen returns
the display to the main System Config -
Module screen.
CHECKOUT AND CONFIGURATION
2-2
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
>Select an Option
or EXIT
EXIT
Factory default:
Yes
System Config - Module 1 of 2
PC Unit
Shared Infusion Settings
Pump Module
SPO2 Module
PAGE
DOWN
EXIT
System Configuration
Factory Default
Settings?
Yes
No
Selection of Yes sets all
System Configuration
parameters to the factory
default setting.
Page 19
NOTES: (Continued)
• Pressing the
CONFIRM soft key while in a
System Configuration option screen:
♦ accepts existing setting or setting
change
♦ displays next option setting screen (if
applicable) or returns display to System
Config - Syringe screen
• Pressing the PC Unit
CANCEL key while in
a System Configuration option screen:
♦ leaves setting unchanged
♦ returns display to System Config -
Syringe screen
To access System Configuration options:
1. Hold
OPTIONS key at power up.
2. Press
PAGE DOWN soft key.
3. Press Syringe Module soft key.
4. To view additional options, press
PAGE
DOWN
soft key.
2.4.1All Mode
Enabling All mode allows
ALL to be
selected as the volume to be infused (VTBI),
to deliver the entire contents of the syringe.
syringe contents. A small percentage of the
syringe contents will be left available for
KVO operation.
CAUTION
System Config - Module 1 of 2
Factory default:
Shared Infusion Settings
PC Unit
Pump Module
SPO2 Module
>Select an Option
or EXIT
EXIT
No
PAGE
DOWN
System Config - Syringe 1 of 2
All Mode:
Auto Pressure:
Back Off:
Fast Start:
KVO:
>Select an Option
or EXIT
EXIT
Disabled
Disabled
Disabled
Disabled
Disabled
PAGE
DOWN
System Config - Syringe 2 of 2
Max rate:
Near End:
Pressure limit-Disc:1000
Pressure limit-NoDisc: Med
Priming:Disabled
>Select an Option
or EXIT
PAGE
EXIT
UP
999 mL/h
Disabled
mmHg
System Config - Module 2 of 2
Syringe Module
EtCO2 Module
>Select an Option
or EXIT
PAGE
EXIT
UP
Page 20
1. After accessing System Config Syringe options display, press All Mode
soft key.
2. To change option setting, press soft key
next to applicable option (Enable or
Disable).
•Option setting changes and System
Config - Syringe page
1 displays.
2.4.2Auto Pressure
Enabling Auto Pressure allows the Auto
Pressure option to be displayed in the
Pressure Limit screen when a pressure
sensing disc is in use. Auto Pressure
automatically sets the alarm limit for a
shorter time to alarm, as follows:
•If current pressure is
100 mmHg or less,
system adds
30 mmHg to current
pressure, to create a new alarm limit.
•If current pressure is greater than
100 mmHg, system adds 30% to current
pressure, to create a new alarm limit.
1. After accessing System Config -
Syringe options display, press Auto
Pressure soft key.
2. To change option setting, press soft key
next to applicable option (Enable or
Disable).
•Option setting changes and System
Config - Syringe page 1 displays.
2.4.3Back Off
When Back Off mode is enabled and a
pressure sensing disc is in use, the motor
reverses plunger movement during an
occlusion until the pressure returns to
preocclusion levels, automatically reducing
bolus flow.
1. After accessing System Config -Syringe options display, press Back Off
pressure sensing disc is in use, the
instrument runs at an increased rate when
an infusion starts, taking up any slack in the
drive mechanism.
1. After accessing System Config -
Syringe options display, press Fast
Start soft key.
2. To change option setting, press soft key
next to applicable option (Enable or
Disable).
•Option setting changes and SystemConfig - Syringe page
1 displays.
2.4.5KVO
Enabling
KVO allows some infusions to
automatically switch into
KVO (keep vein
open) mode upon completion. The
KVO
option setting cannot be changed after the
instrument is powered on and a profile
selected.
NOTE: In the following procedure, the KVO
option is changed to Enable. Changing the
option setting to Disable, disables the
Change Rate and Change Volume soft
keys, as displayed in step 1.
1. After accessing System Config -Syringe options display, press KVO soft
volume of fluid to be delivered to prime the
administration set before connecting to a
patient or following a syringe change. When
priming, a single continuous press of the
PRIME soft key delivers up to
2 mL of
priming fluid.
1. After accessing System Config -Syringe options display, page
2, press
Priming soft key.
2. To change option setting, press soft key
next to applicable option (Enable or
Disable).
•Option setting changes and System
Config - Syringe page
2 displays.
2.5CONFIGURATION SETUP - SHARED
INFUSION - PUMP AND SYRINGE
MODULES
Refer to the
8000/8100 Series Technical
Service Manual.
2.6CONFIGURATION OPTIONS AND
DEFAULTS - PCA MODULE
NOTE: With the Profiles feature enabled, the
settings are configured independently for
each profile. A hospital-defined, bestpractice data set must be uploaded to enable
the Profiles feature. Date and Time is a
system setting and is the same in all profiles.
System Settings: Refer to the PC Unit
section of the Alaris®System
DFU.
PCA Module Settings: Refer to the PCA
Module section of the Alaris
®
System DFU.
PCA Module Configuration Parameters:
Select system configuration settings for the
PCA Module during data set development,
then upload them as part of the data.
These requirements and guidelines are
intended to complement the intent of Joint
Commission on Accreditation of Healthcare
Organizations (
JCAHO) requirements.
3.2REGULAR AND PREVENTIVE
MAINTENANCE INSPECTIONS,
CALIBRA TION
Use the Maintenance Software to perform
calibration and preventive maintenance.
Contact CareFusion Technical Support
for help obtaining or using Maintenance
Software.
3.3CLEANING
Refer to the Alaris
®
System DFU.
®
Syringe Module (8110 Series)
®
PCA Module (8120 Series)
Alaris
Technical Service Manual
3-1Alaris
Page 30
PREVENTIVE MAINTENANCE
3-2
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
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Page 31
4 PRINCIPLES OF OPERATION
Page 32
Page 33
Chapter 4 — PRINCIPLES OF OPERATION
4-1Alaris
®
Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
4.1INTRODUCTION
This chapter describes the principles of
operation for the Syringe and PCA Modules.
Refer to the PC Unit/Pump Module
(
8000
/8100 Series) Technical Service Manual
for PC Unit information.
4.2GENERAL INFORMATION
The Syringe and PCA Modules function as
part of the Alaris
®
System, and function only
when attached to a PC Unit.
•PCA Module: the PCA Module includes
a locking security door and patient
handset. Only one PCA Module can be
attached to the PC Unit, and the PCA
Module must be attached directly to the
right of the PC Unit.
•Syringe Module: the Syringe Module
includes a pressure sensing subsystem
for use with administration sets that
include pressure discs. Up to four
Syringe Modules can be attached to the
PC unit.
•Both modules can be used in conjunction
with any combination of other Alaris
®
Modules.
Both modules are appropriate for
intermittent or continuous delivery of
IV
fluids. Both modules can provide smooth
delivery of small quantities of
IV fluid within a
very low contained volume. Both modules
include these advanced features: bolus
delivery, drug library, drug dose calculator,
loading dose, titrate without stopping,
syringe size detector, one-handed syringe
loading, several modes of delivery, multichannel coordinated infusion, and dose
limits.
Page 34
PRINCIPLES OF OPERATION
4.2GENERAL INFORMATION (Continued)
Both the Syringe and PCA Modules include
display, logic, drivetrain, drive head, plunger,
and force sensor subsystems.
NOTE: All circuit boards in the Syringe and
PCA Modules are not field repairable and
must be returned to a CareFusion
Service Center for repair.
4.3DISPLAY BOARD ASSEMBL Y
The keypad sends signals to the
microcontroller on the Display Board, whose
function is to manage displayed information.
The Logic Board provides
5V power to the
Display Board through a 10-pin connector.
4.3.1Microcontroller
The Display Board's microcontroller
provides four keypad functions: Channel
Select, Pause, Channel Off, and Restart.
The microcontroller controls the keypad
backlight and the Alarm, Infusing, and
Standby
The microcontroller controls the
LEDs.
LED display
driver for the Channel Identification
(Channel ID) and 7–segment rate displays.
The microcontroller also drives the scrolling
alphanumeric display that shows module
status (such as "
CHANNEL MALFUNCTION").
"
INFUSION COMPLETE" or
The microcontroller performs safety
monitoring and generates alerts (including
the Alarm LED and applicable error
messages) if critical circuitry does not
function properly.
The display driver uses a discrete resistor
for brightness control. Module software
provides three brightness levels: low (
full brightness), used when the PC Unit is
operating on battery power; medium (
full brightness), used when the PC Unit is
operating on AC power; and high (100%
brightness) is the maximum level possible.
Rate:
The display driver controls the five
7
–segment displays used for the Rate
display: three
7–segment displays and two
small 7–segment displays (the smaller
displays show fractional digits). The five
displays show infusion rates from
to 999 mL/h. The Rate display is readable in
normal hospital lighting conditions from a
distance of
15 feet and provides a 45°
viewing angle.
Channel Identification:
The display driver controls the
Channel
A
through H. The Channel
ID display, which can display letters
14–segment
ID display is
readable in normal hospital lighting
conditions from a distance of
provides a
viewing angle.
45°
15 feet and
4.3.3Comparator/Safety Monitor
The comparator/safety monitor circuit
detects short or open failures of the Alarm
LED or rate display and sends that
information to the microcontroller. This
ensures correct alarm notification and
prevents the module from displaying an
invalid infusion rate.
4.3.4Status and Backlight LEDs
27% of
47% of
0.01 mL/h
4.3.2LED Display Driver
The microcontroller communicates serially
with the LED driver for the
7-segment LED display.
4-2
Alaris®Syringe Module (8110 Series)
®
PCA Module (8120 Series)
Alaris
Technical Service Manual
8-digit,
A constant current drives and ensures
consistent brightness levels for the three
status
LEDs (Alarm, Infusing, Standby) and
the keypad backlight LED.
Page 35
4.4LOGIC BOARD ASSEMBLY
The Logic Board receives its power from the
8V supply on the PC Unit via the IUI
connector. The Logic Board contains
DC-to-
DC converters to convert the +8V supply to
+3.3V, +5V, and
+15V supplies,
and a
variable voltage supply to the motor. The
Logic Board also contains an inverting
circuit to produce a -
5V supply. The field-
programmable gate array (
FPGA) on the
Logic Board controls the supply voltages
(
5V, 3.3V) to the digital and analog sensors.
The Logic Board monitors the supply
voltages and analog sensor signals, and
sets up the nominal power level for any
particular pumping rate. Incoming analog
sensor signals (from the pressure sensor,
force sensor, syringe sizer, and plunger
position sensor) are filtered and buffered,
and then fed to the
ADC as inputs.
The Logic Board includes a processor, a
1M x 8 flash ROM, 512K x 8 static RAM, and
a watchdog timer circuit. The watchdog
timer circuit has a 1.6–second timeout that
can put the Syringe or PCA Module into a
safe state if the Logic Board main processor
fails.
The Logic Board reads and writes to the
FPGA via I/O address space. The FPGA
contains the digital logic for generating
control signals for ADC, DAC, sensors, motor
feedback circuitry, module detection and
identification circuit interface, and 10-phase
step signals for the motor drive circuitry.
The
FPGA also generates a master RESET
signal for the module.
The Logic Board’s main processor
communicates with the Display Board’s
microcontroller via a serial channel. The
Logic Board provides the Power-On Reset
signal to the Display Board. Upon keypad
input to the Display Board, the Logic Board
receives a Channel Off signal to stop the
motor.
The Logic Board contains
IUI interface
circuitry that allows it to communicate with
the PC Unit.
The digital sensor interface on the Logic
Board contains current sense circuitry,
which reads output signals from the
photointerrupters on the lever detect sensor,
nut engaged sensor, and flange sensor. On
the Syringe Module only, the Logic Board
also reads signals from the
SET IN sensor
(pressure sensor).
The motor drive circuitry on the Logic Board
uses a variable voltage supply to drive a
5
-phase stepper motor and save power,
depending on the torque loading. A
combination of software settings and motor
feedback loop circuitry adjusts the motor
supply voltage in response to detected
motor loading. The motor feedback loop
starts with a nominal voltage based on
pumping rate, and adjusts motor voltage as
needed to maintain constant peak motor
current levels, independent of torque load.
The motor feedback loop keeps the voltage
range constant for any given pumping rate.
4.5DRIVETRAIN ASSEMBLY
The drivetrain is a linear positioning device.
The geared stepper motor powers the
drivetrain, and the linear motion of the
drivetrain controls the drive head to push
the syringe plunger accurately and with
enough force to deliver medication from
many different syringes. Because system
positioning is open loop, the mechanical
parts and assembly must maintain a high
degree of accuracy.
PRINCIPLES OF OPERATION
4-3
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
Page 36
4.6DRIVE HEAD
The drive head captures the syringe by the
syringe plunger and uses the drivetrain to
drive the plunger in a controlled fashion.
The drive head has claw-like arms (plunger
grippers) that capture the syringe plunger.
The plunger grippers allow the drive head to
capture a wide variety of syringes (see the
Syringe or PCA Module section of the
Alaris
®
System DFU and Set Compatibility
Card for more information on suitable
syringes).
To load a syringe into the drive head, the
gripper control/drive head release lever
rotates
90° clockwise. This rotates an inner
shaft, which is connected to a slide plate.
Two holes in the slide plate interface with
two pinion gears that make direct contact
with the plunger grippers. Once the slide
plate moves back, the gears rotate and the
plunger grippers open to accept the syringe
plunger flange.
Once the syringe is loaded, a plunger detect
flag interfaces with an optical switch to
indicate that a syringe is properly loaded
into the plunger grippers. The drive head
also includes a flag that indicates the drive
head position, preventing an infusion from
beginning prematurely.
Several other components of the drive head
control the opening and closing of the split
nuts on the leadscrew. A pull rod cam
attached to the end of the rotating shaft in
the drive head interfaces with a rod and
head piece that can rotate to lift the rod
attached to the drivetrain carriage and cam
lock at the other end, allowing the split nuts
to open. Once the rotating shaft rotates
clockwise to load a syringe and then
released, a torsion spring returns the gripper
control to its original position. This torsion
spring ensures that the gripper control
returns to its vertical (closed) position and
confirms that the split nuts are closed.
The drivetrain is contained in the lower and
upper housings. The lower housing is also
attached to the drive tube that connects to
the drivetrain carriage at the opposite end.
A plastic sleeve over the drive tube provides
environmental and
ESD protection to the flex
circuit routed up to the drive head.
4.7PLUNGER HEAD BOARD ASSEMBLY
A strain gauge on the Plunger Head Board
senses the force applied to the syringe
plunger: the greater the force, the more
negative the amplifier output . The resulting
signal is inverted and offset on the Logic
Board.
The optical switches on the Plunger Head
Board detect whether a syringe is properly
loaded and whether the plunger grippers are
position to capture a syringe plunger. When
either optical switch is unblocked, currentsensing circuitry on the Logic Board detects
a current from the switch.
4.8FORCE SENSOR SUBSYSTEM
The force sensor subsystem includes a
force sensor mounted in the drive head,
rather than at the drivetrain as in other
designs.
The cantilevered force sensor contact plate
pivots on a lock plate mounted to the
underside of the lower housing. The force
sensor is positioned so that the cantilevered
contact plate acts as a moment arm from
the pivot point, providing mechanical
advantage from the syringe force to the
force sensor.
PRINCIPLES OF OPERATION
4-4
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
Page 37
This mechanical advantage amplifies the
input for a given force from a syringe, which
improves system resolution. Improved
resolution is particularly beneficial for
smaller syringes with lower syringe forces.
A protrusion on the contact plate
concentrates force from all syringe sizes to
a specific location on the contact plate,
which minimizes the effect of variations in
syringe loading and in the syringe push
button geometry inherent in plastic syringes.
The protrusion also creates a longer
moment arm for smaller size syringes,
because they contact the protrusion further
from the contact plate pivot. This increases
the sensor force of small size syringes,
allowing better system resolution. A silicone
seal is also trapped between the force
sensor and the lower housing.
The pressure sensor subsystem includes
the Pressure Sensor Board Assembly, disc
detect system, and related hardware. The
pressure sensor subsystem is only activated
when an administration set with a pressure
disc is used and the pressure disc is
installed, and enhances overall pressure
detection in the patient line.
The Pressure Sensor Board includes: a
pressure sensing transducer that makes
intimate contact with a flexible membrane
(pressure disc) on the administration set.
The pressure of the fluid in the
administration set is transmitted through the
membrane and into the gel of the sensor,
where it is measured by a piezoresistive
pressure transducer.
Circuitry on the Pressure Sensor Board
amplifies pressure transducer output. The
board also includes an optical switch that
detects the presence of an administration
set pressure disc.
4.10PATIENT HANDSET CIRCUIT AND
DOOR LOCK SENSOR CIRCUIT (PCA
MODULE ONLY)
The PCA Module Logic Board includes a
patient handset circuit, which senses
whether a dose request cord is attached. A
button on the dose request cord allows a
patient to request a dose of analgesia
according to clinician-programmed
parameters.
The PCA Module Logic Board also includes
a door lock sensor circuit that detects the
position of the door lock (
UNLOCK,
PROGRAM, or LOCK):
•
UNLOCK allows syringe loading or
unloading, or access to the latch that
allows the PCA Module to be detached.
•
PROGRAM allows changes to
programmed parameters without
interrupting an infusion.
•
LOCK is the only position that allows an
infusion to start.
PRINCIPLES OF OPERATION
4-5
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
4.8FORCE SENSOR SUBSYSTEM
(Continued)
Page 38
PRINCIPLES OF OPERATION
4-6
Alaris®Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
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Page 39
PRINCIPLES OF OPERATION
Figure 4-1.Block Diagram: Syringe and PCA Modules
4-7
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
ALARM
LED (red)
INFUSE
LED (green)
STANDBY
LED (yellow)
7-segment
driver/check
circuit
LED
driver/check
circuit
Display board
microcontroller
7-Segment
Displays
Scrolling
Displays
Channel
ID Display
Keypad
backlight
Keypad
Select
Pause
Channel Off
Restart
Handset
LED
Patient
Handset
Circuit
Door Lock
Sensor Circuit
Door Lock Sensor
Patient Switch
Model 8120 PCA Module Only
Channel Off
Power On Reset
FPGA
Logic board
microcontroller
Address
Latch
Watchdog/
System Reset
Address/
Data/Control Bus
Flash
ROM
Static RAM DUART
Transceiver
Left IUI Connector
Right IUI Connector
12-Bit ADC
8 Channel
8-Bit DAC
(parallel) &
Amp
Variable
Motor
Voltage Drive
5-Phase
Stepper
Motor Driver
Unit Detect
& ID Circuit
Sensors Signal
Conditioning &
Drive Circuit
Force Sensor Out
Plunger Sensor Position
Motor Drive Voltage
Pressure Disc Sensor (8110 only)
Syringe Size Sensor
Pressure Sensor Current Sense
+3.3V
+5V
Plunger Detect Sensor
Lever Detect Sensor
Flange Sensor
Split Nut Engaged Sensor
Set In Sensor (8110 only)
Door Lock Sensor (8120 only)
DC/DC
Converter &
Regulators
2.5V
Reference
Circuit
+3.3 V
+5V
-5 V
+15 V
From IUI Connectors
5V+2.5V Ref
Model 8110 Syringe Module Only
Amp, Current
Sense & Test
Circuit
Pressure
Disc
Set In
Sensor
Motor
Connection
Flex Cable
Connection
Plunger
Position
Sensor
5-Phase
Stepper Motor
Syringe Barrel
Gripper
Split Nut Engaged
Sensor
Carriage Flex
Circuit
Drivetrain
Assembly
Flange Sensor
Flex Cable
Syringe Size
Sensor
Flex
Cable
Drive Head
Amp
Plunger
Force
Sensor
Plunger Detect
Sensor
Lever Detect
Sensor
Page 40
PRINCIPLES OF OPERATION
4-8Alaris
®
Syringe Module (8110 Series)
Alaris
®
PCA Module (8120 Series)
Technical Service Manual
THIS PAGE
INTENTIONALLY
LEFT BLANK
Page 41
5A CORRECTIVE MAINTENANCE
SYRINGE MODULE
Page 42
Page 43
Chapter 5A — CORRECTIVE MAINTENANCE
Syringe Module
5A-1
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
WARNING
Disconnect the instrument from the Alaris
®
System before performing maintenance. Only
qualified personnel using proper grounding
techniques should open the instrument case.
CAUTION
CMOS devices are sensitive to static electrical
charges and may be damaged during repair if the
repair activity is not performed in an electrostatic
discharge (
approved
ESD) protected environment using
ESD protective procedures, including
personnel grounding.
NOTES:
• Replacing the Complete Housing Assembly,
Force Sensor Assembly or Logic Board
Assembly in a Syringe Module with version
earlier software requires special calibration
equipment. Until version
the Syringe Module, these assemblies must be
replaced at the depot. Call CareFusion
Technical Support (
assistance and information.
7.1 or later is installed in
800.854.7128 ext. 6003) for
7.0 or
5.1INTRODUCTION
This chapter describes how to disassemble
and reassemble the Syringe Module.
For more efficient repair, read the “Principles
of Operation” chapter for information on the
mechanical and electrical functions of the
Syringe Module.
The surface mount devices on the circuit
boards are not field repairable. Return
circuit boards to an authorized CareFusion
Service Center for repair. Attempting
circuit board repairs voids all warranties.
Whenever the Syringe Module is repaired,
perform the minimum tests required for new
instrument checkout using Maintenance
Software.
For information on replacement parts, see
the “Illustrated Parts Breakdown” chapter.
Following any level of maintenance, perform
the applicable tests (refer to “Level of
Testing Guidelines” table).
• Due to product changes over time, components/
assemblies illustrated in this chapter may differ
from the disassembled instrument. If there are
any questions, contact CareFusion Technical
Support.
Page 44
Follow these procedures in order for the
most efficient disassembly of Syringe
Module subassemblies. To reassemble the
Syringe Module, reverse the disassembly
steps.
Before adhering gaskets and labels to the
instrument, clean the surface with a cotton
swab or soft cloth lightly dampened with
70%
Isopropyl Alcohol.
CORRECTIVE MAINTENANCE
Syringe Module
5A-2
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY
To avoid the risk of electrical hazard or
damage to the instrument circuitry, do not
spray fluids directly onto the instrument or
allow fluids to enter the instrument.
CAUTION
Table 5A-1.Required Materials, Supplies and Tools - Syringe Module
NOTE: Contact/source information is subject to change.
•Silicone Grease, Dow Corning Molykote 33, or equivalent (http://www.dowcorning.com)
•
#1 Phillips Screwdriver
•
#2 Phillips Screwdriver
•Small Diagonal Cutters
•Lint-free cloth (such as, Kimwipes or lint-free tissue)
•Torque Screwdriver with a minimum range of 3-15 in-lbs. Recommend torque screwdriver, MicroAdjustable, TT #844SC5002 or TT #304TO034.
•Torx Bit, Size
T6, 1
15
/16” Length, TT #758SC0301
The following items may be purchased from McMaster-Carr (562.692.5911; http://www.mcmaster.com).
•Insert-Bit Holder,
¼” Hex Drive, 6” Length, #7225A42
•Insert-Bit, 0.05” Hex Size, ¼” Hex Shank, 1” Length, #8526A46 (used for 0.05” Park Position Collar
Setscrew)
•Slotted Screwdriver,
1
/8” Tip Width, 3” Long Blade, #5682A37
Page 45
5.2.1Removing Latch Assembly and Feet
1. Remove two (
2) screws attaching Latch
Assembly to bottom of Rear Case and
remove Latch Assembly Components.
2. Pull two (2) Feet from underside of
module.
NOTE: When reinstalling the Compression
Spring, be sure to orient as shown during
reassembly.
During Reassembly:
Apply thin layer of Dow Corning Molykote 33
(or equivalent) silicone grease to Feet.
NOTE: The Feet press-fit into the module.
5A-3
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Rear Case
Latch Screws
5.2DISASSEMBLY/REASSEMBLY (Continued)
Compression Spring
Feet
Page 46
CORRECTIVE MAINTENANCE
Syringe Module
5A-4
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.2Removing IUI Connector Assemblies
Remove two (
2) screws attaching each IUI
(left and right) to module.
During Reassembly:
•Do not mix gray (old) and black (new) IUI
Connectors.
•Ensure ground clips are still installed on
both
IUI connectors.
•To install Right
IUI Connector Gasket,
remove protective backing and adhere to
IUI Connector.
•To install Left
IUI Connector Seal,
position seal on one end of connector
and stretch to other end to conform to
connector body. Gently press on seal to
seat completely. Use lint-free swab to
apply alcohol to top, sides, and bottom of
seal for lubrication while installing to Rear
Case. Do not apply alcohol to contacts
or connector.
IUI Connector, Left
IUI Connector, Right
IUI Connector Seal, Left
IUI Connector Gasket, Right
Ground clip at each mounting
hole on both IUI Connectors.
Page 47
5A-5
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.3Separating Rear Case from Chassis
Assembly
1. Remove four (
4) screws (and associated
washers) attaching Rear Case to
chassis assembly.
2. Separate Rear Case from Front Case by
pulling Rear Case away from chassis
assembly.
During Reassembly:
•Ensure Silicone Tubing gasket in Rear
Case is in place and undamaged. (See
Figure
7A-12
)
•Raise Drive Head to highest position
before sliding Chassis Assembly into
Rear Case.
•Ensure wiper assembly seals between
cutout in rear case.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Rear Case Assembly
Chassis Assembly
Page 48
CORRECTIVE MAINTENANCE
Syringe Module
5A-6
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.4Removing Handle
Remove six (
6) screws attaching left and
right handles to each other and to module.
Right Handle
Left Handle
Rear Case
Page 49
5A-7
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.5Removing Flex Cable Retainer
1. Peel Flex Cable Retainer from Internal
Frame.
2. Use a cotton swab or soft cloth lightly
dampened with
70% Isopropyl Alcohol to
remove adhesive debris from Internal
Frame.
During Reassembly: (see Figure
7A-11)
1. Ensure Internal Frame surface (where
retainer is adhered) is clean and free of
adhesive debris.
2. Remove protective backing from
replacement retainer and adhere
retainer to Internal Frame.
3. If necessary, bend retainer on each fold
line at a
90° angle, toward front of
instrument.
4. Lay retainer over Flex Cable and tuck
inside Front Case.
Flex Cable Retainer
Retainer tucks into
Front Case here.
Retainer adheres to
Internal Frame here.
Page 50
5.2.6Removing IUI Board Assembly
1. If present, remove Retainer Clip from
Dual Connector Cable-IUI Board
connection.
2. Disconnect Dual Connector Cable from
IUI Board
J2.
3. Disconnect Syringe Size Sensor
harness from
IUI Board J4.
4. Disconnect Flex Cable from
IUI Board
J3.
5. Use small diagonal cutters to lift and
remove snap rivet from
IUI Board.
6. Remove
IUI Board Assembly.
During Reassembly:
Route Dual Connector Cable and Syringe
Size Sensor harness under
IUI Support
Bracket.
CORRECTIVE MAINTENANCE
Syringe Module
5A-8
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
Dual Connector Cable
IUI Board Assembly
Snap Rivet
Flex Cable
Syringe Size
Sensor
Harness
IUI Support Bracket
Do not cut rivet.
CAUTION
Retainer Clip
Page 51
5A-9
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.7Removing Logic Board Assembly
NOTE: If the Logic Board must be replaced
on a Syringe Module with version 7 or earlier
software, the Logic Board must be replaced
at the depot. See the note at the beginning
of this chapter for more information.
1. If present, remove Retainer Clip from
Dual Connector Cable-Logic Board
connection.
2. Disconnect Dual Connector Cable from
Logic Board
J8.
3. Disconnect Linear Sensor harness from
Logic Board
J12.
4. Remove one (
1) screw attaching Keypad
ground wire and Logic Board to
IUI
Support Bracket.
5. Remove one (
1) screw attaching Logic
Board to Internal Frame Assembly.
6. Disconnect harnesses from following
locations on Logic Board:
Route Dual Connector Cable and Linear
Sensor Harness under
IUI Support Bracket.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Dual Connector Cable
Logic Board Assembly
Internal Frame Assembly
Keypad Ground Wire
Retainer Clip
Linear Sensor Harness
Page 52
CORRECTIVE MAINTENANCE
Syringe Module
5A-10
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.8Removing Internal Frame Assembly
1. Remove three (
3) screws attaching
Internal Frame to Front Case Assembly.
2. Remove
IUI Bracket Strap.
3. Remove one (
1) screw attaching IUI
Support Bracket to IUI Bracket.
4. Remove
IUI Support Bracket and
IUI
Bracket.
5. Remove two (
2) screws attaching
Internal Frame to Drivetrain Assembly.
6. Remove Internal Frame.
During Reassembly:
Route Linear Sensor Harness between IUI
Bracket and Internal Frame.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Drivetrain Assembly
IUI Bracket
Internal Frame
IUI Bracket
Strap
IUI Support Bracket
Front Case Assembly
Linear Sensor Harness
To replace an Internal Frame whose Barrel
Clamp Assembly has a park position “pin”
(rather than a “collar”), replace with Front
Case Assembly Kit (Table 7A-1, item 9).
CAUTION
-- Barrel Clamp Assembly (Partial View) --
Park Position “Collar”Park Position “Pin”
Page 53
5A-11
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.9Removing Drivetrain Assembly
1. Remove five (
5) screws attaching
Drivetrain Assembly to Front Case.
2. Remove Drivetrain Assembly.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Drivetrain Assembly
Front Case
Page 54
CORRECTIVE MAINTENANCE
Syringe Module
5A-12
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.10 Removing Display Board Assembly
1. Disconnect harness/flex cable from
following locations on Display Board:
J1 (keypad)
J4 (backlight)
2. Remove Display Board.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Display Board Assembly
LED Backlight Harness
Keypad Flex Cable
Page 55
5A-13
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.11 Removing Pressure Sensor Board
Assembly
1. Disconnect Pressure Sensor Harness
from Pressure Sensor Board.
2. Remove four (
4) screws attaching Base
Disk Holder to Top Disk Holder and
Front Case.
3. Remove Base Disk Holder and Pressure
Sensor Board Assembly.
During Reassembly:
When installing an old version of Base Disk
Holder, use 4-40 x
5
/
16 screws (item 486) in
upper mountings, and
4-40 x
3
/16
screws
(item
484
) in lower mountings. When
installing a newer version of Base Disk
Holder, use
4-40 x
5
/16
(item 486) for all
mountings. (Reference Figure
7A-4.)
5.2DISASSEMBLY/REASSEMBLY (Continued)
Pressure Sensor Board AssemblyPressure Sensor
Harness
Base Disk Holder (old)
(See CAUTION statement)
To avoid damage to the Front Case when
reinstalling the Base Disk Holder, use
correct size screws (reference Figure
7A-4).
CAUTION
Base Disk Holder (new)
(See CAUTION statement)
No boss
Boss
4-40 x
5
/16 (4 PL)
4-40 x
5
/16
(upper mountings)
4-40 x
3
/
16
(lower mountings)
Page 56
CORRECTIVE MAINTENANCE
Syringe Module
5A-14
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.12 Removing Top Disk Holder
1. Remove two (
2) screws attaching Top
Disk Holder to Front Case.
2. Remove Top Disk Holder.
NOTE: When replacing the Top Disk Holder,
remove the Flag Disk Holder and Spring from
the old part and reuse.
During Reassembly:
•Set spring torque by inserting end of
Spring in hole of Flag Disk Holder and
winding holder counterclockwise.
•Ensure Silicone Tubing and Gasket in
Top Disk Holder mounting area on Front
Case are in place and undamaged. (See
Figure
7A-5)
5.2DISASSEMBLY/REASSEMBLY (Continued)
Flag Disk Holder
Spring
Top Disk Holder
To replace “Older Version” Top Disk Holder
(see below), replace with Front Case
Assembly Kit (Table
7A-1, item
9).
CAUTION
“Older Version”
Top Disk Holder
See CAUTION
statement above.
Page 57
5A-15
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.13 Removing Sensor Board Assembly
1. Remove Flag Leaf Spring and Barrel
Position Flag as required.
2. Remove one (
1) screw attaching Sensor
Board to Front Case.
3. Remove Sensor Board.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Sensor Board
Barrel
Position Flag
Flag Leaf
Spring
Page 58
CORRECTIVE MAINTENANCE
Syringe Module
5A-16
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.14 Removing Syringe Size Sensor
Assembly
1. Remove one (
1) screw attaching Syringe
Size Sensor Assembly and Shaft
Support to Front Case.
2. Remove Syringe Size Sensor Assembly.
During Reassembly:
1. Insert tab on Syringe Size Sensor
Assembly into Potentiometer Extension
Guide.
2. Secure Syringe Size Sensor Assembly
to Front Case.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Syringe Size Sensor Assembly
Potentiometer Extension Guide
Page 59
5A-17
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.15 Removing Syringe Barrel Clamp
Assembly
1. Loosen set screw securing park position
collar to Barrel Clamp and remove collar.
2. Remove Potentiometer Extension
Guide.
3. Remove one (
1) screw attaching Shaft
Support to Front Case.
4. Remove Retaining Rings, Compression
Spring, Bushing and Barrel Clamp.
During Reassembly:
1. If Shaft Seal has been removed:
a. Reinstall with wide lip facing Front
Case.
b. Use a #2 flat-bladed screwdriver to
carefully push around edges of seal
until it is fully seated into Front Case
recess.
c. Verify seal is completely seated by
slowly pulling Barrel Clamp out ½ to
1 inch and then slowly pushing it
back in, ensuring seal does not
move out of recess.
2. Potentiometer Extension Guide:
a. Fully retract Barrel Clamp (seat
against Front Case).
b. Insert Potentiometer Extension
Guide through Shaft Support and
“snap” into place on shaft.
3. Tighten park position collar setscrew
against flat on end of shaft.
5.2DISASSEMBLY/REASSEMBLY (Continued)
To replace a Syringe Barrel Clamp
Assembly with a park position “pin” (rather
than a “collar”), replace with Front Case
Assembly Kit (Table 7A-1, item 9).
1. Remove two (2) screws attaching Status
Indicator Lens to Front Case.
2. Remove Status Indicator Lens.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Status Indicator Lens
Front Case
Page 62
CORRECTIVE MAINTENANCE
Syringe Module
5A-20
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.17 Removing Housing Assembly and
Guide Rod
NOTE: If the Housing Assembly must be
replaced on a Syringe Module with version
7
or earlier software, the Housing Assembly
must be replaced at the depot. See the note
at the beginning of this chapter for more
information.
1. Pull Linear Sensor Harness loose from
clamps on Top Plate.
2. Remove two (
2) screws attaching Top
Plate to Extrusion Frame.
3. Gently place assembly in a standing
position and orient it with motor facing
inward.
4. Rotate knob (gripper control) to
disengage plunger grippers and slowly
raise Housing Assembly until Carriage
Assembly nears top of Extrusion Frame.
5. Angle Housing Assembly away from
Linear Sensor Assembly so that
Conductive Wiper does not contact
Linear Sensor.
6. Gently remove Housing Assembly.
7. Lift Guide Rod from Bottom Plate and
remove.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Linear Sensor Harness
Housing Assembly
Guide Rod
Extrusion Frame
Leadscrew
Assembly
Wiper Assembly
Top Plate
Carriage Assembly
Harness Clamp (2 PL)
Conductive
Wiper
(Reference)
Use EXTREME CAUTION
when removing
Housing Assembly. If the Conductive Wiper
is damaged, replace the entire
Lower
Housing/Carriage Assembly.
CAUTION
Knob (gripper control)
When performing the next step, use care to
avoid damaging the leadscrew pulley.
CAUTION
Page 63
5A-21
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.18 Removing Motor/Pulley Assembly
1. Remove four (
4) screws attaching
Motor/Pulley Assembly to Bottom Plate.
2. Remove Motor Belt.
3. Remove Motor/Pulley Assembly.
During Reassembly:
1. To prevent pinion damage, install
Motor/Pulley Assembly through Bottom
Plate at a slight angle.
2. Install Motor Belt:
a. Install wide end of belt onto
leadscrew pulley.
b. Tilt Motor/Pulley Assembly and
install other end of belt onto motor
pulley. Do not stretch belt to fit over
pulley.
3. Screw Motor/Pulley Assembly in place.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Motor Belt
Motor/Pulley Assembly
Bottom Plate
Page 64
CORRECTIVE MAINTENANCE
Syringe Module
5A-22
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.19 Removing Leadscrew Assembly and
Bottom Plate
1. Remove two (
2) screws attaching
Leadscrew Assembly to Bottom Plate.
2. Remove Leadscrew Assembly.
3. Remove remaining screw attaching
Bottom Plate to Extrusion Frame.
4. Remove Bottom Plate.
During Reassembly:
If replacing Bottom Plate, remove bushings
and grommets from old plate and install into
new plate.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Leadscrew Assembly
Bushing (8 PL)
Bottom Plate
Extrusion Frame
Grommet (4 PL)
Page 65
5A-23
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.20 Removing Linear Sensor Assembly
1. Peel Linear Sensor Assembly off
Extrusion Frame.
2. Use alcohol to clean adhesive debris
from Extrusion Frame.
During Reassembly:
1. Ensure Extrusion Frame surface is
clean.
2. Before adhering Linear Sensor
Assembly to Extrusion Frame:
a. Remove protective backing from
Linear Sensor.
b. Align hole in Linear Sensor
Assembly with hole in Extrusion
Frame.
3. Use a burnishing tool to ensure that
Linear Sensor Assembly is securely
adhered to Extrusion Frame.
4. Clean Linear Sensor Assembly surface
using alcohol and lint-free cloth (such as
Kimwipes or lint-free tissue).
5.2DISASSEMBLY/REASSEMBLY (Continued)
To avoid damaging the Linear Sensor
Assembly, do not touch with bare hands.
CAUTION
Alignment Hole
Extrusion Frame
Linear Sensor Assembly
Page 66
CORRECTIVE MAINTENANCE
Syringe Module
5A-24
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.21 Removing Force Sensor and Actuator
Knob Assemblies
NOTE: If the Force Sensor Assembly must
be replaced on a Syringe Module with version
7 or earlier software, the Force Sensor
Assembly must be replaced at the depot.
See the note at the beginning of this chapter
for more information.
1. Loosen four (
4) screws attaching Upper
Housing to Lower Housing just far
enough to remove Upper Housing,
leaving O-Rings attached to screws.
NOTE: To avoid losing O-Rings, push
each screw upward to grab and hold its
O-Ring before removing screws from
Upper Housing.
2. Disconnect flex cable from Force Sensor
Board
J1.
3. Lift Force Sensor Board off mounting
posts.
4. Remove Actuator Knob Assembly.
5. Remove four (
4) screws attaching Force
Sensor Assembly to Lower Housing.
6. Remove Force Sensor Assembly.
7. Remove Force Sensor Lock Plate, Force
Sensor Plate, Force Sensor Seal and
Upper Housing.
During Reassembly: (see Figure 7A-1)
•Ensure Silicone Tubing gasket in Upper
Housing is undamaged and is in place.
•Ensure Plunger Flag (part of Lower
Housing Assembly) and Force Sensor
Assembly plunger are seated in Force
Sensor Seal.
•Ensure Force Sensor Assembly flex
cable is tucked inside upper and lower
housings.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Upper Housing
(Silicone Tubing
gasket not shown
)
Force Sensor
Board Assembly
(P/O Force Sensor
Assembly Kit)
Actuator Knob
Assembly
Force Sensor
Assembly Kit
Lower
Housing/Carriage
Assembly Kit
Force Sensor Seal
Force Sensor
Lock Plate
Force Sensor Plate
Wiper Assembly, Top Plate, and
Carriage Assembly are not shown.
O-Rings (4 PL)
Plunger
To avoid damaging Lower Housing, use
Nylok screws to install Force Sensor
Assembly.
CAUTION
Nylok Screws
(4 PL, P/O Force
Sensor Assembly
Kit and Lower
Housing Carriage
Assembly Kit)
Page 67
5A-25
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
Actuator Knob
Compression
Spring
Interrupter Flag
Screw
Pullrod Cam
Slide Plate
5.2.22 Removing Actuator Knob Assembly
Parts
1. Use a small pair of needle-nose pliers to
gently pull Interrupter Flag from Actuator
Knob Assembly.
2. Remove screw to remove Slide Plate,
Compression Spring, and Pullrod Cam.
During Reassembly:
•Install Slide Plate and Compression
Spring onto Actuator Knob, compress
Spring with Pullrod Cam, then install
screw.
Page 68
CORRECTIVE MAINTENANCE
Syringe Module
5A-26
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Table 5A-2.Torque Values - Syringe Module
Functional ApplicationItem DescriptionTorque Value
DRIVETRAIN ASSEMBLY
Bottom Plate6-32 x
7
/1612 in-lb
Leadscrew Assembly6-32 x
7
/1612 in-lb
Motor/Pulley AssemblyM2.5 x 124 in-lb
Top Plate6-32 x
7
/
166 in-lb
FINAL ASSEMBLY
Handle Assembly4-40 x
3
/46 in-lb
IUI Connectors6-32 x
7
/1612 in-lb
Latch Assembly4-40 x
5
/166 in-lb
Rear Case - Front Case4-40 x
5
/166 in-lb
Rear Case - Internal Frame6-32 x
7
/
1612 in-lb
FRONT CASE ASSEMBLY
Disk Holder, Base - Disk Holder 4-40 x
5
/166 in-lb
Disk Holder, Base - Front Case4-40 x
1
/46 in-lb
Disk Holder, Top4-40 x
3
/166 in-lb
Drivetrain Assembly - Front Case4-40 x
5
/
166 in-lb
Internal Frame - Drivetrain Assembly6-32 x
5
/1612 in-lb
Internal Frame - Front Case4-40 x
5
/166 in-lb
IUI Support Bracket6-32 x
5
/
1612 in-lb
Logic Board Assembly4-40 x
5
/166 in-lb
Park Position Collarsetscrew - no
nylon patch6 in-lb
setscrew - with nylon patch10 in-lb
Sensor Board Assembly4-20 x
5
/166 in-lb
Status Indicator Lens4-20 x
5
/
166 in-lb
Syringe Barrel Clamp Assembly4-40 x
5
/166 in-lb
Syringe Size Sensor Assembly4-40 x
5
/166 in-lb
HOUSING / CARRIAGE ASSEMBLY
Actuator Knob Assembly4-40 x
1
/46 in-lb
Force Sensor Assembly2-56 x
3
/166 in-lb
Upper - Lower Housing4-20 x 18 in-lb
Page 69
5A-27
CORRECTIVE MAINTENANCE
Syringe Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Table 5A-3.Level of Testing Guidelines - Syringe Module
Actuator Knob Assy.NNXNXN
Disc Holder, Top / BaseNN
Display Board Assy.NNNNN
Drivetrain Assy.NN N XNNN
Force Sensor Assy.NNNNXN
Front CaseNXNNN XNN
Handle Assy.N
Housing/Carriage Assy., LowerNNN XNNN
Housing Assy., CompleteNN N XNXN
Internal Frame Assy.NN
IUI Board Assy.NXNNXNXN
IUI Connector Assy.NN
Latch Assy.N
Leadscrew Assy.NNXNXN
Logic Board Assy.NNN N N N N N NN
Pressure Sensor Board Assy.NNN N N
Rear CaseNN
Sensor Board Assy.NN N XNXN
Status Indicator LensNNNN
Syringe Barrel Clamp assy.NNN N
Syringe Size Sensor Assy.NNN NN
Channel ID/IUI Connector Test
Barrel Size Calibration
Plunger Position Calibration
Plunger Force Sensor
Calibration
Binary Switches Test
Pressure Disc Accuracy
Verification
Keypad Test
Plunger Force Accuracy
Verification
Alarm Test
Plunger Position Accuracy
Verification
Barrel Size Accuracy Verification
Pressure Disc/Sensor
Calibration
Tests to Perform
N
= Required
X = If verification fails.
Blank = Not Applicable
Repair/Replacement of: Ð
Simultaneous Display Test
Visual/Instrument Inspection
-- Continued Next Page --
Page 70
CORRECTIVE MAINTENANCE
Syringe Module
5A-28
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
NOTES:
• Use the Maintenance Software to perform testing and calibration.
• After performing any calibration procedure, always perform the
associated verification test.
Table 5A-3.Level of Testing Guidelines - Syringe Module (Continued)
Miscellaneous: Ð
Instrument DroppedNNNNN NNNNN
Instrument Software FlashedN
New Instrument CheckoutNNNNN NNNNN
No Fault Found
NNNNNN
(instrument not opened)
No Fault Found
NNNNN NNNNN
(instrument opened)
Channel ID/IUI Connector Test
Barrel Size Calibration
Plunger Position Calibration
Plunger Force Sensor
Calibration
Binary Switches Test
Pressure Disc Accuracy
Verification
Keypad Test
Plunger Force Accuracy
Verification
Alarm Test
Plunger Position Accuracy
Verification
Barrel Size Accuracy Verification
Pressure Disc/Sensor
Calibration
Tests to Perform
N
= Required
X = If verification fails.
Blank = Not Applicable
Repair/Replacement of: Ð
Simultaneous Display Test
Visual/Instrument Inspection
Page 71
5B CORRECTIVE MAINTENANCE
PCA MODULE
Page 72
Page 73
Chapter 5B — CORRECTIVE MAINTENANCE
PCA Module
5B-1
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
WARNING
Disconnect the instrument from the Alaris
®
System before performing maintenance. Only
qualified personnel using proper grounding
techniques should open the instrument case.
CAUTION
CMOS devices are sensitive to static electrical
charges and may be damaged during repair if the
repair activity is not performed in an electrostatic
discharge (
ESD) protected environment using
approved ESD protective procedures, including
personnel grounding.
NOTE: Due to product changes over time,
components/assemblies illustrated in this chapter
may differ from the disassembled instrument. If
there are any questions, contact CareFusion
Technical Support.
5.1INTRODUCTION
This chapter describes how to disassemble
and reassemble the PCA Module.
For more efficient repair, read the “Principles
of Operation” chapter for information on the
mechanical and electrical functions of the
PCA Module.
The surface mount devices on the circuit
boards are not field repairable. Return
circuit boards to an authorized CareFusion
Service Center for repair. Attempting
circuit board repairs voids all warranties.
Whenever the PCA Module is repaired,
perform the minimum tests required for new
instrument checkout using Maintenance
Software.
For information on replacement parts, see
the “Illustrated Parts Breakdown” chapter.
Following any level of maintenance, perform
the applicable tests (refer to “Level of
Testing Guidelines” table).
Page 74
Follow these procedures in order for the
most efficient disassembly of PCA Module
subassemblies. To reassemble the PCA
Module, reverse the disassembly steps.
NOTE: Perform all maintenance on an
antistatic surface, preferably a grounded
antistatic mat.
Before adhering gaskets and labels to the
instrument, clean the surface with a cotton
swab or soft cloth lightly dampened with
70% Isopropyl Alcohol.
5B-2
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY
Disconnect the PCA Module from the Alaris
®
System before attempting disassembly.
CAUTION
To avoid the risk of electrical hazard or
damage to the instrument circuitry, do not
spray fluids directly onto the instrument or
allow fluids to enter the instrument.
CAUTION
Table 5B-1.Required Materials, Supplies and Tools - PCA Module
NOTE: Contact/source information is subject to change.
•Silicone grease, Dow Corning Molykote 33, or equivalent (http://www.dowcorning.com)
•
#1 Phillips screwdriver
•
#2 Phillips screwdriver
•Small diagonal cutters
•Lint-free cloth (such as, Kimwipes or lint-free tissue)
The following items are available from
TECHNI-TOOL (800.832.4866
; http://www.techni–tool.com).
•Hex Head Bit,
1
/16 HX, 115/16” Length, TT #758SC0172 (used for 0.062” Park Position Collar Setscrew)
The following items may be purchased from McMaster-Carr (562.692.5911; http://www.mcmaster.com).
•Insert-bit holder,
¼” hex drive, 6” length, #7225A42
•¼” drive 9/16” deep-well socket (available at any hardware or tool store)
•Slotted screwdriver,
1
/
8” tip width, 3” length blade, #5682A37
•Insert-Bit, 0.05” Hex Size, ¼” Hex Shank, 1” Length, #8526A46 (used for 0.05” Park Position Collar
Setscrew)
Page 75
5.2.1Removing Latch Assembly and Feet
1. Remove two (
2) screws attaching Latch
Assembly to bottom of Rear Case and
remove Latch Assembly components.
2. Pull two (
2) Feet from underside of
module.
NOTE: When reinstalling the Compression
Spring, be sure to orient as shown during
reassembly.
During Reassembly:
•When reinstalling Latch Assembly, press
toward outer edge of module and screw
into position.
•Apply thin layer of Dow Corning
Molykote 33 (or equivalent) silicone
grease to Feet.
NOTE: The Feet press-fit into the module.
5B-3
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Feet
Rear Case
5.2DISASSEMBLY/REASSEMBLY (Continued)
Compression Spring
Latch Screws
Page 76
5B-4
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.2Removing IUI Connector Assemblies
Remove two (
2) screws attaching each IUI
(left and right) to module.
During Reassembly:
•Ensure ground clips are still installed on
both
IUI
connectors.
•To install Right
IUI Connector Gasket,
remove protective backing and adhere to
IUI Connector.
•To install Left
IUI Connector Seal,
position seal on one end of connector
and stretch to other end to conform to
connector body. Gently press on seal to
seat completely. Use lint-free swab to
apply alcohol to top, sides, and bottom of
seal for lubrication while installing to Rear
Case. Do not apply alcohol to contacts
or connector.
IUI Connector, Left
IUI Connector, Right
IUI Connector Seal, Left
IUI Connector Gasket, Right
Ground clip at each mounting
hole on both IUI Connectors.
Page 77
5.2.3Removing Handle
1. Remove six (
6
) screws attaching Left
and Right Handles.
2. Remove two (
2) screws attaching Left
Handle to Lock Housing.
3. Detach Left and Right Handles from
each other and module.
During Reassembly:
•Assemble Left Handle over Lock Housing
and ensure that Lock Harness is routed
under Lock Housing boss.
•Use two (
2) screws to attach Left Handle
to Lock Housing.
•Install Right Handle over Left Handle and
secure with six (
6) screws.
5.2DISASSEMBLY/REASSEMBLY (Continued)
5B-5
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Right Handle
Left Handle
Rear Case
Screws attach Left Handle
to Lock Housing
Lock Harness
Lock Housing
Page 78
5B-6
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.4Removing Door Assembly
1. Remove four (
4) T8 Torx Security screws
and four (4) Hinge Bushings attaching
Door Assembly to right side of Front
Case.
2. Unlock Door, and lift Lock Assembly
away from Door. Take care not to pull
on Lock Assembly harness.
3. Remove Door Assembly.
Disassembling Door Assembly:
4. Remove four (
4) screws attaching Front
Door, Rear Door Lockplate, and Rear
Door.
5. Remove seven (
7) screws attaching
Hinge to Front Door and Lockplate.
6. Remove two (
2) screws attaching
Lockplate and Strikeplate Lockplate to
Front Door.
During Reassembly:
Reassembling Door Assembly:
1. Use two (
2) screws to assemble Door
Strikeplate to Front Door.
2. From inside of Door, align Front Door
Lockplate holes with through-holes on
Door. From outside of Door, align holes
on hinge with those on Door and Front
Door Lockplate. Install but only loosely
tighten seven (
7) screws to attach hinge.
Front Case
Door
Assembly
Lock
Assembly
Harness
T8 Torx Security
Screws and Hinge
Bushings (x4)
Page 79
5.2.4Removing Door Assembly (Continued)
3. Align Rear Door Lockplate to inside of
Rear Door. Install but only loosely
tighten four (4) screws on upper section
of hinge.
Reinstalling Door Assembly:
4 Install four (
4) Hinge Bushings into four
(4) slots on lower section of hinge.
5. Install but only loosely tighten four (
4)
T8 Torx Security screws.
6. Close Door in Lock position and align
Door edges (front and back doors flush),
then tighten all screws.
5B-7
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
CORRECTIVE MAINTENANCE
PCA Module
5.2DISASSEMBLY/REASSEMBLY (Continued)
Hinge
Front
Door
Front
Door
Lockplate
Front
Door
Rear Door
Lockplate
Rear Door
Front
Door
Lockplate
Strikeplate
Page 80
5B-8
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.5Removing Rear Case
1. Remove four (
4) screws (and associated
washers) attaching Rear Case to
chassis assembly.
2. Pull Rear Case away from chassis
assembly.
During Reassembly:
•Ensure that Silicone Tubing gasket in
Rear Case is in place and undamaged
(see Figure
7B-10).
•Raise Drive Head to highest position
before sliding Chassis Assembly into
Rear Case.
•Slide edges of Rear Case into Wiper
Assembly flange.
•Route Lock Assembly harness along
flange on Rear Case.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Rear Case Assembly
Chassis Assembly
Slide edge of Rear Case
into Wiper Assembly
flange at reassembly
Drive Head
Lock Assembly Harness
Page 81
5B-9
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.6Removing Flex Cable Retainer
1. Peel Flex Cable Retainer from Internal
Frame.
2. Use a cotton swab or soft cloth lightly
dampened with
70% Isopropyl Alcohol to
remove adhesive debris from Internal
Frame.
During Reassembly: (see Figure
7B-9)
1. Ensure Internal Frame surface (where
retainer is adhered) is clean and free of
adhesive debris.
2. Remove protective backing from
replacement retainer and adhere to
Internal Frame.
3. If necessary, bend retainer on each fold
line at a
90° angle, toward front of
instrument.
4. Lay retainer over Flex Cable and tuck
inside Front Case.
Flex Cable Retainer
Retainer tucks into
Front Case here.
Retainer adheres to
Internal Frame here.
Page 82
5B-10
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
Dual Connector Cable
IUI Board
Snap Rivet
(do not cut)
Flex
Cable
Syringe Size Sensor
IUI Support Bracket
Retainer Clip
5.2.7Removing IUI Board Assembly
1. If present, remove Retainer Clip from
Dual Connector Cable-IUI Board
connection.
2. Disconnect Dual Connector Cable from
IUI Board J2.
3. Disconnect Syringe Size Sensor
harness from
IUI Board J4.
4. Disconnect Flex Cable from
IUI Board
J3
.
5. Use small diagonal cutters to lift and
remove snap rivet from
IUI Board.
6. Remove
IUI Board.
During Reassembly:
Route Dual Connector Cable and Syringe
Size Sensor harness under IUI Support
Bracket.
Do not cut rivet.
CAUTION
Page 83
5B-11
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
Internal Frame Assembly
5.2.8Removing Logic Board Assembly
1. If present, remove Retainer Clip from
Dual Connector Cable-Logic Board
connection.
2. Disconnect Dual Connector Cable from
Logic Board
J8.
3. Disconnect Linear Sensor Harness from
Logic Board
J12.
4. Remove one (
1) screw attaching Logic
Board to
IUI Support Bracket.
5. Remove one (
1) screw attaching Logic
Board to Internal Frame Assembly.
6. Disconnect harnesses from following
locations on Logic Board:
Route Dual Connector Cable and Linear
Sensor Harness under
IUI Support Bracket.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Dual Connector Cable
Logic Board
J12
Linear Sensor Harness
IUI Support Bracket
J8
J11
J4
J7
J13
Retainer Clip
Page 84
5B-12
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.9Removing Internal Frame Assembly
1. Remove one (
1) screw attaching three
(3) ground wires to IUI
Support Bracket.
2. Remove three (
3) screws attaching
Internal Frame to Front Case Assembly.
3. Remove
IUI Bracket Strap.
4. Remove one (
1) screw attaching
IUI
Support Bracket to IUI Bracket.
5. Remove
IUI Support Bracket and IUI
Bracket.
6. Remove two (
2) screws attaching
Internal Frame to Drivetrain Assembly.
7. Remove Internal Frame.
During Reassembly:
•Route Linear Sensor Harness between
IUI Bracket and Internal Frame.
•Route Lock Assembly harness through
top of and under Internal Frame so that
Frame does not pinch harness when
attached to Front Case, and harness can
reach Logic Board
J13.
5.2DISASSEMBLY/REASSEMBLY (Continued)
Drivetrain
Assembly
IUI Bracket
Ground wires
IUI Bracket Strap
IUI Support Bracket
Front Case
Assembly
Linear Sensor Harness
Internal Frame
Lock Assembly
Page 85
5B-13
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2DISASSEMBLY/REASSEMBLY (Continued)
5.2.10 Removing Lock Assembly
1. Already disassembled: Handle, Rear
Case,
IUI
and Logic Boards, and Internal
Frame.
2. Remove Lock Assembly.
NOTE: Remove or install the Lock Assembly
harness carefully to avoid damage to the
harness.
During Reassembly:
Route Lock Assembly harness through top
of and under Internal Frame so that Frame
does not pinch harness when attached to
Front Case, and harness can reach Logic
Board
J13.
Rear Case
Lock Assembly
Lock Assembly harness
Page 86
5B-14
CORRECTIVE MAINTENANCE
PCA Module
Alaris®Syringe Module (8110 Series)
Alaris®PCA Module (8120 Series)
Technical Service Manual
5.2.11 Removing Latch Module and
Drivetrain Assembly
1. Remove two (
2) screws on Latch
Bushings and remove Latch Module
from underside of Drivetrain.