CareFusion 8400ST, 8400STi User manual

8400STº

&

8400ST%

VOLUME

SERVICE

NOTE:
This

to

The

information

the

8400ST®°i

8400ST®

alsoapplies

is

located

name

is

referred

to

in

the

VENTILATOR

MANUAL

to

the

8400ST%;,

back

throughout

of

the

manual

Specific

the

contents

information

under

Addendums.

of

this

manual.

pertaining

only

©

1995

Bird

Products

Corporation

EE

aa

Bird

1100

(619)

(800/

©

Products

Corporation

Bird

Center

778-7200 M TLX:

328-4139 m FAX:

Drive,

Palm

Springs,

9103805605

(619)

778-7269

CA

92262

Bird

Products

Corporation

MANUAL

REVISION

8400ST

Service

/8400STi

Manual

Date

March

1998

Revision

pee

Rev.

Pages

D

Service

Manual

本

March

1898

Rev.

D

This

_

Corporation

Products

activity

trained

CORPORATION
UNAUTHORIZED
UNAUTHORIZED

service

Corporation

on

or

WARNING

manual

trained

its

products

authorized

is

and

IS

NOT
REPAIRS,
PROCEDURES.

intended

authorized

does

personnel.

not

by

other

RESPONSIBLE

for

condone

than

OR

use

service

Bird

BIRD

ANY

!

by

Bird

or

approve

Products

PRODUCTS

REPAIRS

Products

personnel.

FOR

Bird

of

service

Corporation

ANY

MADE

BY

Use

installation,

and

the

injury

shall

All

Products

warranty

of

the

equipment

equipment.

including

bear

maintenance

(see

warranty

incorrect

removal,

full

responsibility

card)

Corporation

status

part

servicing,

may

This

of

result

may

death.

performed

must

the

or

the

in

damage

also

The

be

service

subject

result

purchaser

and

within

authorized

representative

unit.

failure

checkout

liability

to

or

in

damage

and

the

applicable

exercise

or

calibration

possible

to

installer

for

the

above.

in

advance

in

order

due

care

malfunction

property

of

warranty

by

to

in

of

parts

and

these

Bird

parts

period

retain

the

of

the

CONTENTS

-

GENERAL

SECTION

INFORMATION

1:

Introduction,

-

Overhaul

Definition

.ee

of

Repair - Maintenance

PAGE

'

1-1

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

MAINTENANCE

SECTION

SECTION

2:

3:

4:

5:

6:

7:

8:

9:

SpecificationS

Description

Assembly

Overview
System

M

PNEUMALIC

E

8400ST

Warnings,

Cleaning

OVERHAUL

Maintenance

8400ST

of

the

Display,

Instructions

of

the

8400ST

OperatiOn

....ononoocononcnonnnonoranonnroncnanaconconoconcanocraronon

Circuit

Cauiions

and

Boards

and

Sterilization

Service

Tools & Equipment

Controls

nr

Volume

Theory

NoteS

..........

Policy

List

ーー

昌和

and

Alarm

2-1

Indicator...............

3-1

4-1

Ventilator

ee

nora

onareorancoronons

of

Operation.............................

irene

rire

rire

receiver

ee

rene

nine

eeeeeneno

아아아

once

5-1

5-2

5-9

6-1

7-1

8-1

9-1

SECTION

SECTION

SECTION

SECTION

SECTION

10:

11:

12:

13:

14:

NES

Disassembly

Assembly

Critical

μμ

Component

Operational
&

Performance

画

Pre-CalbratiOn

B

Calibration

m

Post

Calibration/Final

E

Pertormance

IM

inserer

Removal/Replacement

Verification

TeSt

Procedures

issssseisnsnesnesnse

μϱ””ϱϱϱϱἛϱἛϱρρυ---

sise

Assembly

κ

μμ

μμ

esse

neee

aeeereeemeeremerenesenn

ke

ste v snes

steen

renen

Procedures..............

sarao

esser

sr

10-1

11-1

12-1

13-1

14-1

sense

INDEX

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

15:

16:

17:

18:

19:

20:

21:

Troubleshootind

m

Clinica!

m

Electronic

Schemalics・

DrawindS

AS

APPend

m

Explanation

Service

Non-Recoverable

Warranty

ϱ.ϱϱΓϱΓϱϱϱίμυ-

of

Bulletins

.......--cccsececetecsscessecesesssecccasesesesseresstseetareesaetesorsnsssseeessess

PAGE

ito

ee

rroccrnicroniono

A

15-1

16-1

17-1

18-1

Abbreviations

"sise

"Ventinop"Codes..............................-0004.......

19-1

20-1

21-1

O

1997

Contact

Dealer

_

Customer

Bird

Products

ORDERING

your

Bird

or

Bird

Products Corporation

Service

1100

Paim

(760)

(800)

Fax:

Corporation

INFORMATION

Products

Department

Bird

Center

Springs,

778-7200

328-4139

(760)

778-7274

Corporation

directly:

Drive

CA

92262

or

TECHNICAL

Contact

Bird

Technical

Paim

Products

Service

1100

Bird

Springs,

(760)

778-7200

BIRD

(800)

[(800)

INFORMATION

Corporation

Department

Center

CA 92262

directly:

Drive

or

HELPLINE

934-BIRD

934-2473]

SECTION

Introduction

1

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

1

INTRODUCTION

The

8400ST

Manual
theories
bleshooting,

instructions
technician

lator.

The

Service

for

use

that

is, a person

8400ST

authorized
ter.

Any
dures
should

that

be
Corporation
specific
theory

of
Operating
or

Sections 2 through 7 of
Service
oughly

familiar
Maintenance
service

INGS,

given

CAUTIONS,

particular

‘Sections 8 through

the

details

replacement

the

8400ST
structured
problem

replacing
manual
repair
on

of,

the

printed

however,
provided
complete

subassemblies

by

factory

Volume

contains

of

operation,

replacement,

to

assist a qualified

in

the

Manual

by

an

authorized

that

service

repairs,

exceed

referred

operating

operation,

Instruction

personnel

on

to a

that

does

for

complete

to

technical

seminar

by

Bird’s

Technical

with

procedures

this

equipment.

attention.

related

of

defective

ventilator.

around

defective

defective

not

example,

circuit

give

can

trained

pneumatic

maintenance

adjustments,

the

to

instructions

should

the

and

17

to

the

cover

schematic

the

information.

technical

Ventilator

Service

and

calibration,

and

maintenance

service

of

is

specifically

service

has

attended

conducted

Service

Training

or

scope

the

Service

of

Bird

this

Products

Center.

and

refer

to

the

8400ST

Manual,

P/N

this

manual.

become

Operating

before

The

NOTES

of

this

manual

the

diagnoses

subassemblies

This

manual

concept

of

subassembly

subassembly.

diagnoses

component

board

subassemblies;

information

service

be

technician

replaced

personnel.

electronic

trou-

the

venti-

intended

person;

a

or

Cen-

proce-

manual

For

clinical

L1141,

thor-

and

attempting

WARN-

should

isolating

Defective
in

be

cover

and

of

is

a

and

The
and
failures

is

the

field

Only

factory
attempt
ventilator.
are

diagnosis

based

Bird's

on
subassembly
training

on

how

maintenance

The

maintenance

ventilator

nance

includes

through

follows:

Every

Every

Every

15,000

1000

3000

5000

hours:

The 15,000
any

factory
important,
done

using
nents
tion.

in
considered

trained

however,

only

provided

addition,

complete

Performance
performed
this

manual,

All

repair

15,000

facility

available

in

and

hour

where

to

technicians.

trained

personnel

and

repair

service

fault

analysis

level

and

also

to

perform

of

the

ventilator.

schedule

preventative

the

first

15,000

hours:

examine

replace
necessary.

hours:

verify
calibration.

hours:

replace

filter

COMPLETE

OVERHAUL

hour

overhaul

service

that

the

maintenance

by

Bird

Products Corpora-

no

overhaul

until

Verification

accordance

maintenance,

overhaul,

proper

qualified,

can

service

trained

should

of a 8400ST

training

and

classes

repair

include

the

15,000

for a 8400ST

mainte-

hours

inlet

as

transducer

bacteria

in

patient

may

be

done

technician.

the

overhaul

compo-

should

an

Operational

test

has

been

with

Section

including

be

done

equipment

service

at

the

detailed

hour

as

filter;

circuit.

by

It

is

be

be

14

of

the

at

any

is

SECTION

2

Specifications

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION
PRODUCT

2

SPECIFICATIONS

CONTROLS

Power

Modes

*Tidal

Peak

*Breath

Volume

Flow

Rate

Waveforms

Pressure
Assist

Support

Sensitivity

PEEP/CPAP

Manual

Inspiratory

Sigh

Alarm

Alarm

AC

Alarm

Back

“Maximum
blender.

Breath

Hold

Sigh

Volume..............

Sigh

High

Silence

Reset

Line/ALT

Volume

Up

Breath

Minute

Volume

Control

Assist/Control,

Square,

-1

Touch

6

On/Off

Pressure

PWR

]

Rate

- 1

Limit...........

Source

Capability - 56 L @

50

10

Decelerating

Off

to

to

-20

cmH,O,

0

to

Button

seconds

Sigh/100

1.5x

Tidal

(up

(up

to

Touch

for

On/Off

(VO)

SIMV

&

CPAP

to

2000

to

120

Ipm

0

to

80

bpm

50

cmH,O

OFF

30

cmH,O

Activated

(maximum)

breaths

Volume

to

3000

1.5x

140

cmH,O)

-

60

seconds

Button

Slide

Switch

AC

or

Operation

74

to

84

0

to

80

bpm

50

PSIG

intet

ml

mi)

set

DC

dB

to

MONITORS

Power

Minute

-

Tidal

Breath

“ON”

Volume

Volume

Rate

ーー

LE Ratio

Airway

Battery

Patient

Pressure

"ON"

Inspiratory

Hourmeter

ALARMS

.

High

Pressure

Low

Peak

Low

Baseline

Low

Minute

High

Breath

Low

Inlet

Apnea

Interval

Ventilator

CIRC

|;

Mode

1:1.0

Effort

Limit

Pressure

-

Pressure

Volume

Rate

Gas

Inoperative

Switch

Position

Green

to

99

-20

Yellow

0

Off,

-20

17

10

Red

Flashing

Rotating

Indicator

0

to

130.0

0

to

9999

0

to

255

or

1.0

to

(INVERSE)

to

140

cmH,0

Indicator

Yellow

Indicator

to

99,999

1

to

140

cmH,O

2 to

140

cmH,O

to

+30

cmH,O

01099.9Ｌ

Sto

150

PSIG

(1.19

to

Internal

kg/cm?)

60

seconds

Indicator

Display

Display

Lamp

L

mi

bpm

99:1

Lamp

Lamp

hours

7

bpm

Lamp

2-1

INPUTS

Electrical

100

VAC + 10% - 15%,

§0/60
120

50/60
220

50/60

240
50/60

11.8 - 16VDC, 5 amps

Hz,

0.75

amps

VAC + 10% - 15%,

Hz,

0.58

amps

VAC + 10% - 15%,

Hz,

0.35

amps

VAC + 10% - 15%,

Hz,

0.32

amps

Pneumatic

30 - 70

OUTPUTS

Data

PSIG

Link

(2.10 - 4.90

Optical

Interface

PHYSICAL

WEIGHTS & DIMENSIONS

Dimensions

Ventilator

only

Ventilator & Stand

Ventilator & Compressor

-

-

-

-
(maximum)

kg/cm?)

Link

Module-RS232

H - 9"

W - 16"

D-

13

H - 51

W - 21”

D - 24"

Н - 55"

W - 16"

D - 25

Fuse

Rating

1.25SB

1.00SB

.63SB

.63SB

for

8400ST

(22.9cm)
(40.6cm)

1/2"

(34.3cm)

1/2"

(130.8cm)

(53.3cm)

(60.9cm)

(138.7ст}

(40.6cm)

'/2"(64.8)

Weight

Ventilator

Ventilator & Stand

Ventilator & Compressor

SHIPPING

Dimensions

Ventilator

Ventilator & Stand

Ventilator
&

Compressor

Weight

Ventilator

Ventilator & Stand

Ventilator

&

Compressor

NOTE:

without

only

INFORMATION

only

w/Accessories

only

w/Accessories

Product

notice.

specifications

32

80

185

H - 15"

W - 19"

D - 18"

H-40'/"

W - 30

D - 22

-

W - 24"

D - 19"

H - 38

W - 22"

D - 35

38

95

63

142

are

subject

Ibs

(14.5kg)

Ibs

(36.4kg)

Ibs.

(84.1kg)

(38.1cm)

(48.3cm)

(45.7cm)

(102cm)

‘/e"

(76.5cm)

7%"

(58cm)

31"

(78.7ст)
(60.9cm)
(48.3cm)

‘/2"

(97.4cm)

(55.9cm)

"42"

(90.2cm)

lbs

(17.3kg)

Ibs

(43.2kg)

lbs

(28.6

lbs

(64.5kg)

to

change

kg)

SECTION

3

Description

and

of

Alarm

the

Display,

Controls

Indicator

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

DESCRIPTION

Assist | SIMV

Control | CPAP

3

OF

THE

DISPLAY,

CONTROLS

AND

ALARM

INDICATORS

FRONT

PANEL

8400ST

3-1

DESCRIPTION

E

CONTROLS

OF

THE

DISPLAY,

CONTROLS

AND

ALARM

INDICATORS

Control | CPAP

MODE

Dual
basic

Two

are
set

SIMV

Two
operating
selected,

the

is

selected,
decelerates
the

CONTROL

function

operating

basic

used

up

any one

and

waveform

peak

mechanical

control

operating

in

conjunction

CPAP.

selections.

inspiratory

flow

setting.

flow

to

for

mode.

selections

with

of

four

ventilation

options

is

50%

delivered

are

When a square

flow

When

initially

of

the

selecting

available

is

delivered

delivered

peak

breath.

flow

(=

CONTROL

breath

modes:

decelerating

flow setting

delivery

and

rate

and

for

each

waveform

at a

constant

waveform

at

the

waveform

引

CPAP

sensitivity

Control,

peak

at

Assist/Control,

of

the

two

flow

rate

flow

the

conclusion

and

controls

basic

delivery

equal

flow

delivery

setting,

then

to

is

to

of

Tidal

Voll

KM

~

O

Peak

Flow

(Ut

TIDAL

Sets

assisted

ㅣ

PEAK

Sets
assisted

waveform,

phase.
before

VOLUME

the

volume
and

Range:

FLOW

the

maximum

and

this

For

deceleration.

Range:

of

Apnea

CONTROL

Apnea

is

decelerating

CONTROL

gas

delivered

Back

50

to

2000

flow

delivered

Back

the

flow

10

to

3-2

to

Up

Ventilation

mi

to

Up

Ventilation

rate

delivered

waveform,

120

lpm

the

patient

the

for

this

for

breaths.

patient

breaths.

is

the

the

during

entire

peak

controlled,

controlled,

For

square

inspiratory

flow

delivered

_©_

Rate

MM

ーー

©

PEEp

eno)

.

7

_—-

ce

a

BREATH

Sets

the

patient
of

ventilation.

PEEP/CPAP

Establishes
exhalation
baseline

SENSITIVITY

Sets
spontaneous

RATE

number

per

minute

Range:

the

and

pressure.

Range: 0 to

the

trigger

CONTROL

of

ventilator

in

the

0 to

CONTROL

pressure

the

start

CONTROL

level

below

(CPAP),

initiated

Control,

80

bpm

in

the

of

the

next

30

cmH,O

baseline

pressure

breaths

Assist/Control

patient

supported,

circuit

inspiration.

pressure

and

to

be

delivered

and

SIMV

between

Also

known

for

the

assisted

to

the

modes

the

end

of

as

initiation

of

breaths.

©

PRESSURE

Pressure

Support

lO

Back

Up

Breath

Rate

tbpml

Sets
breath.

NOTE:
total

NOTE:
inspiratory

BACK

Sets

Back

lower

Range:

the

inspiratory

This

control

Range:

This

patient

the

Up

than

pressure

Pressure

time

UP

BREATH

breath

Breath

the

-1

to

SUPPORT

patient

is

OFF, 0 to

control

control

sets

Support

limit.

RATE

rate

to

Rate

-20

cmH,O,

CONTROL

circuit

functional

50

the

pressure

equals

(See

be

cannot

Breath

PEEP + Pressure

in

the

Description

used

be

Rate

OFF

pressure

in

SIMV/CPAP

cmH,O

8400ST

during

set

to

setting.

during a spontaneous

mode

level

above

Support.

has a preset 3 second

of

Indicators

Apnea

any

Back

value

only.

PEEP.

in

this

Up

Ventilation.

(other

than

The

section.)

zero)

3-3

DESCRIPTION

w

ALARMS

High

Peak

Pressure

temH.0O)

OF

THE

DISPLAY,

HIGH

This

alarm
patient
immediately:

1.

Both

2.

The

ratory
ventilator
kinks
and

.

If

the
normal
mains
seconds
longer

CONTROLS

PRESSURE

establishes

system.

audible

ventilator

flow

or

the

patient

ventilation

above

than 3 seconds,

Once

and

will

is

stopped

is

operating

occlusions,

audible

and/or

portion

pressure

the

is

AND

LIMIT

the

maximum

violated,

visual

be

High

indicators

forced

and

correctly

patient

of

resets

will

resume.

Pressure

above

the

ALARM

ALARM

the

following

into

an

the

exhalation

and

pressure

the

alarm

to

baseline
If

the

Alarm

baseline

following

INDICATORS

allowable

events

will

be

activated.

exhalation

valve

there

pressure

are

will

be

will

cease.

within 3 seconds,

ventilator

Limit

will

occur:

pressure

state,

opens.

no

reset

pressure

for

more

plus 3 cmH,O

in

will

occur

i.e.,

If

patient

to

baseline

than

the

inspi-

the

circuit

re-

0.3

for

M

The

to

decrease,

valve,

Ш

At

attempt
the

M

Once

m

The

the

The

value

times

breath.

safety

back

baseline

to

give

sequence

corrected,

High

reset

button

of

the

the

set

High

The

value

Range: 1 to

Silence:
Audible:
Visual:

system

via a bleed

to

baseline

pressure + 3

another

will

repeat

the

Pressure

is

activated.

alarm

setting

Pressure

cannot

140

Yes

Intermittent

Flashing

solenoid

orifice

pressure.

breath.

as

ventilator

Limit

exceed

cmH,O

Digital

will

cmH,0,

explained

indicator

is

automatically

Limit

“Beep”

open

in

the

mainflow

the

If

the

problem

will

resume

will

upon

the

the

140

Display

and

pressure

outlet

ventilator

is

above.

normal

remain

delivery

cmH,O

flashing

increased

maximum.

will

check

will

reset

not

resolved,

operation.

until

to

1'/2

of a Sigh

begin

and

NOTE:

This

alarm

cannot

be

set

below

3-4

PEEP

+1

cmH,

0.

Low

Peak

Pressure

{emtt20)

|

9

Low

PEEP/

CPAP

Pressure

ο

χο

O

LOW

The
tails
breath.

LOW

The

pressure

ventilation

:

PEAK

Low

Peak

to

exceed

This

Range:

Silence:

Audible:

Visual:

PEEP/CPAP

Low

PEEP/CPAP
drops

cycle

Range:

Silence:

PRESSURE

Pressure

the

alarm

alarm

is

Off, 2 to

Yes

Intermittent

Flashing

PRESSURE

below

for

longer

-20

to

Yes

ALARM

alarm

setting

active

the

for

140

Digital

Pressure

alarm

than

+30

cmH,O

is

activated

during

all

breath

cmH,O

“Beep”

Display

ALARM

Alarm

setting

0.5

seconds.

if

the

the

inspiratory

types.

-

is

activated

at

any

time during

airway

phase

if

the

pressure

of

a

airway

the

Audible:

Visual:

NOTE:

to

detect

controlled.

LOW

‘Low

Minute

Vol.

m

This

ured
not
applies

Low

return

MINUTE

alarm

by

exceed

is

the

the

to

all

Range: 0 to-99.9
Silence:
Audible:

Intermittent

Flashing

PEEP/CPAP

of

ventilatory

VOLUME

activated

volume

breath

monitoring

alarm

types.

Yes

Intermittent

“Beep”

Digital

alarm

drive

ALARM

whenever

setting.

L

The

“Beep”

Display

can

be

of a patient

the

minute

system

at

Low

set

below

previously

ventilation,

the

exhalation

Minute

Volume

zero

baseline

being

as

meas-

valve,

Alarm

does

Visual:

Flashing

Digital

3-5

Display

DESCRIPTION

OF

THE

DISPLAY,

CONTROLS

AND

ALARM

INDICATORS

High

Breath

Rate

{bpm)

Apnea

Interval

{sec.)

HIGH

The

(spontaneous

|

9

APNEA

This

or

audible

is

BREATH

High

Breath

Range: 3 to
Silence:
Audible:
Visual:

INTERVAL

alarm

spontaneous)

initiated.

sets

and

visual

Apnea

Range:
Silence:
Audible:
Visual:

RATE

Rate

plus

the

are

10

Flashing

ALARM

alarm

machine)

150

Yes

Intermittent

Flashing

apnea

sensed

alarm

Interval

to

60

Yes

Intermittent

is

activated

exceeds

bpm

“Beep”

Digital

time

interval.

within

is

activated

alarm

Digital

is

seconds

“Beep”

Display;

the

Display

If

the

selected

and

Apnea

active

in

if

the

alarm

no

breaths

all

modes.

total

breath

setting.

(either

time

interval,

Back

Up

rate

machine

an

Ventilation

"AP"

alternates

FLOW

The

ducer.
operation

Depression
alarm

Depression
until a flow
ventilator.

TRANSDUCER

8400ST

If

the

of

Ш

An

audible

“.--”

appears

window.

m

The

Monitor

and

Breath

for

60

transducer

is

designed

flow

transducer

the

ventilator,

alarm

in

section

Rate.

of

the

Alarm

seconds.

of

the

Alarm

DISCONNECT

to

sounds

the

Low

Silence

Reset

assembly

with

operate

assembly

the

will

with

following

Minute

sequentially

button

button

is

again

Apnea

Volume

Interval

ALARM

or

without

is

disconnected

will

occur:

display

will

silence

will

defeat

connected

setting

the

alarm

only

the

the

flow

trans-

during

setting

audible

to

display

I:E

Ratio

audible

the

alarm

ALARM

SILENCE

ALARM
LOUDNESS

Sitence

Reset

e

)

Allows
nal.
period

NOTE:

power

button
sumed.

ALARM

Resets
no

ventilator

Will

ALARM

Located
audible

the

Activating

will

to

for

longer

not

operator

restore

Duration:

During

the

ventilator,

3-5

seconds

RESET

the

visual

exists.

operation.

reset a Ventilator

LOUDNESS

on

the

alarm

to

this

control

the

60

an

alarm

alarm
Resets

Defeats

rear

panel,

level.

temporarily

audible

seconds

condition

continuous

will

indication

disable

again,

silence

Apnea

Inoperative

the

within

alarm.

resulting

depression

the

of

Back

flow

transducer

alarm

the

audible

the

60

second

from

of

alarm

any

Up

condition.

loudness

until

alarm

ventilation

disconnect

knob

alarm

silence

loss

of

electrical

the

alarm

power

condition

is

which

to

normal

alarm.

varies

sig-

silence

re-

the

D

Low

Inlet

Gas

CEB

Ventlnop.

LOW

Alarm

pressure

drops

and

visual

alarm

a)
b)

c)

d)

Range:

INLET

is

below

can

Low
Clogged
Regulator

System

GAS

activated

drops

16

Ventilator

be

caused

inlet

inlet

pressure

Silence:

Audible:

Visual:

74dB

below

PSIG

gas

malfunction

to

84dB © 1

ALARM

whenever

17

PSIG

(1.12

Inoperative

by

any

pressure
filter

iransducer

No

Continuous

Flashing

3-7

meter

ventilator

(1.19

kg/cm?).

kg/cm?)

of

LED

for 1 second,

state

the

following

malfunction

Tone

interna!

will

be

signaled.

conditions:

system

If

this

pressure

an

audible

gas

The

DESCRIPTION

«ib

Low

Inlet

GERD

Vent

Inop.

OF

Gas

THE

DISPLAY,

VENTILATOR
This

delivery

patient

The
following

*a)

*b)

c)

*

These
ventilator
been

CONTROLS

INOPERATIVE

alarm

Ventilator

condition

and

activate a safety

to

breathe

Inoperative

conditions

Loss

of

electrical

Extended
PSIG

cm?)

Asystem
system,

corrected.

(1.12

for i sec.

either

are

recoverable

will

resume

AND

causes

spontaneously

state

occur:

power

low

ventilator

kg/cm?)

failure

or

is

detected

electrical

Ventilator

normal

ALARM

ALARM

the

ventilator

system,

from

will

be

inlet

gas

greater

or

operation

than

by

the

mechanical,

Inoperative

INDICATORS

to

cease

allowing

“room”

activated

pressure,

ventilator

once

the

air.

24

PSIG

conditions,

the

normal

non-apneic

if

any

less

(1.68

control

conditions

of

the

than

kg/

The

gas

16

have

Silence:

]

Audible:
Visual:

“CIRC”

This

faults
pressure

pressure

displayed

alarm.

transducer

alarm:

DISPLAY

alarm

m

While

than

longer

detects

by

comparing

transducer

mismatch

in

The

Inspiration:

in

29

than

a)

Loss

b)

Loss

c)

System
Continuous
Flashing

possible

pressure

occurs, a “CIRC”

the

“Monitors”

following

and

the

machine

the

inspiratory

cmH,O

100

above

msec,

of

Electrical

of

Iniet
failure:

Alarm

LED

patient

measurements

and

the

machine

display

differences

pressure

phase,

or 9 cmH,O

the

alarm

Power:

Gas

Pressure:

no

circuit

pressure

message

window

between

transducer

if

the

below

will

yes

no

or

pressure

from

transducer.

will

along

the

machine

activate.

with an

airway

pressure

airway

transducer

the

airway

be

visually

pressure

will

activate

pressure

Ifa

audible

the

is

more

for

3-8

“CIRC”

DISPLAY

m

Exhalation:

(Cor't)

While

than

longer

Once
tion
machine

PEEP
10 - 12

an

attempt

mismatch

pressures

mal

The

a)

b)

in

29

than 1 second,

activated,

phase

ventilation.

following

with

pressure)

control.

seconds,

to

condition

drops

Blocked

Occluded
breathing

the

exhalation

cmH,O

above

the

the

higher

fed

If

the

the

allow

the

below

conditions

airway

or

kinked

circuit

phase,

or 9 cmH,O

the

alarm

ventilator

to

mismatch

safety

patient

no

longer

PEEP

pressure

is

of

the

the

exhalation

and

to

exists

+ 3

can

cause

inspiratory

if

the

machine

below

will

activate.

immediately

two

pressures

servo

condition

exhalation

breathe

cmH,O

sensing

continues

spontaneously.

and

the

the

this

alarm

port

or

expiratory

pressure

airway

forced

(either

for

purposes

valves

higher

unit

will

to

be

is

pressure

to

the

exhala-

airway

for

greater

will

be

opened

When

of

the

two

resume

activated:

limb

of

more

for

or

of

than

nor-

*

in

the

c)

NOTE:

the

0.05

rise

to

patient

“CIRC”

lieved.

the

ventilator

not

resolved,

been

Transducer
pressure

Silence:
Audible:
Visual:

When

to

0.1

100

cmH,O.

airway

alarm

Once

implemented.

failure

transducer)

Flashing

the

airway

Ipm

pressure.

notification, a solenoid

the

pressure

resets
the

process

(either

No

Intermittent

pressure

Purge

The

pressure

Approximately

and

attempts

"BEEP"

Digital

Flow

causes

is

relieved

will

repeat

airway

Display

sensing

seen

opens

back

to

cycle

until

pressure

port

becomes

the

manometer

on

the

manometer

10

seconds

and

pressure

to

baseline

again.

corrective

or

machine

from

If

the

action

blocked,

pressure

is

not

the

is

re-

+3

cmH,O,

blockage

has

to

is

DESCRIPTION

OF

THE

DISPLAY,

MODE/WAVEFORM

CONTROLS

AND

ALARM

DISCREPANCY

INDICATORS

DISPLAY

M

INDICATORS

Rotating

gives

properly

waveform

audible
is

attained.

Should

lator
tings
audible

Should

ventilator

waveform

alerts

PRESSURE

illumination

visual

located

selection.

alarm

the

is

in

operation,

for

mode

alerts

the

power-up, a default

will

will

be

Silence:

Audible:

Visual:

of

indication

in

one

Accompanying

that

will

mode

mode

switch

the

and

waveform.

will

be

activated.

switch

be

selected.

activated.

Yes

Intermittent

Rotating

corner

SUPPORT

one

corner

that

the

mode

of

the

available positions

only

reset

when

not

be

properly

8400ST

not

square

INSPIRATORY

will

Concurrently,

be

properly

position

Concurrently,

“BEEP”

illumination

in

of a four

selection

the

stay

“Monitors”

corner

visual

correct

positioned

in

the

the

positioned

of

SIMV

the

visual

of

one

TIME

square,

switch

for

mode

display

switch

previous

and

corner

display

LIMIT

positioning

while

visual

during

decelerating

and audible

of a

is

not

and

is

an

venti-

set-

and

initial

four

window.

Pressure

inspiratory

the

peak

tial

air
terminated
flash.

em

Patient

Effort

PATIENT

Indicates
ity

setting.

breath

Support

time

value

leak

in

and

EFFORT

when

This

types:

on

the

limit.

Should

during

the

the

an

Assisted,

that

system),

Pressure

INDICATOR

inspiratory

indicator

3-10

8400ST

inspiratory

breath

the

Pressure

Support

effort

will

flash

Pressure

incorporates a preset 3 second

flow

fail

to

(as

might

Support

control

meets

at

Supported

or

the

initiation

reach

occur

with a substan-

breath

digital

exceeds

of

and

Spontaneous.

25%

will

display

the

sensitiv-

the

following

of

be

will

-

EE

RATIO

LED

FLASHING

m

MONITORS

am

Power

am

Battery

O

+.

Indicates

flash

as

and

flow

the

set

POWER

Green
is

“ON”

Power

BATTERY

Yellow

external

VDC.

NOTE:

Source)

MONITOR

an

inverse

long

as

the

create

parameters

"ON”

Indicator

and

switch

Indicator

12

Back

position.

an

INDICATOR

lamp,

AC

power

is

in

INDICATOR

lamp,

VDC

SELECT

power

panel

l'E

ratio

combination

inverse

no

AC

switch

BUTTON

l'E

longer

illuminates

is

connected

Line

position.

illuminates

source.

must

has

been

of

set

ratio.

create

when

when

Input

be

in

set.
breath

The

an

inverse

the

and

power

the

This

rate,

flashing

main

the

AC

unit

is

operating

must

DC

(ALT

indicator

tidal

volume

will

stop

l'E

ratio.

power

Line/ALT

switch

be

11.8 - 16

PWR

will

when

」

from

Depression

parameters.

1)

Minute

When

on

Min,

Vol.

jumps

MINUTE

Displays

flow

transducer.

average

Total

1000

Updated

Breath

mi)

of

this

Volume;
pressed
from 4 to

VOLUME

minute

as

on a breath

repeatedly,

follows:

Rate X Sum

button

2)

Tidal

1.

DISPLAY

volume

Minute

by

3-11

allows

of
volume

Of

breath

for

visual

Volume;

sequentially

all

breath

Last 8 Tidal

3)

:E

types

is

calculated

basis.

displays 1 through

display

Ratio;

as

Volumes

4)

measured

on

of

monitored

Breath

an

eight

(ml)/8 X (1L/

Rate.
4,

by

the

breath

then

DESCRIPTION

an

Tidal

OF

Vol.

THE

TIDAL

Displays
volume
a

DISPLAY,

VOLUME

tidal

monitoring

breath

by

CONTROLS

DISPLAY

volume

system.

breath

basis.

for

AND

all

breath
The

ALARM

types

tidal

INDICATORS

as

measured

volume

display

by

the

is

updated

on

Range: 0 to

-

=

Breath | Rate

EE

RATIO

Displays

and

by

breath

will

BREATH

Displays
eight
formula:

the

expiratory

display

the

breath

8

Breaths/Sum

DISPLAY

value

time

basis.

Range:

RATE

If

- - -

-.

DISPLAY

average

average)

9999

m!

calculated

for

machine

breath

1:1.0

breath

for

Of

The

as

rate

is

to

99,

rate

all

breath

Last 8 Breath

the

breaths

set

to

or

1:0

per

types

ratio

between

only.

"0",

then

to

99:1

minute

according

Periods

inspiratory

Updated

KE

(calculated

(min)

on a breath

ratio

window

on an

to

the

time

following

Updated

NOTE:
tected
zero,
tion

will

m

MISCELLANEOUS

AIRWAY

Displays

on a breath

If

an

inspiration

within

the

apnea

begin.

PRESSURE

airway

Range: - 20

the

Apnea

alarm

pressure.

by

breath

(mechanical

interval

will

be

DISPLAY

to

140

3-12

basis.

or

spontaneous)

setting

initiated

cmH,O

and

the

Apnea

breath

Back

is

rate

not

will

display

Up

ventila-

de-

Manual

MANUAL

BREATH

BUTTON

Used

Tidal

settings.
ratory
ignored.

Manual

state.

insp.

Hold

INSPIRATORY

When

occur

the

first.

pressure

to

deliver a single,

Volume,

Manual

or

minimum

Manuai

Breath

ihis

button

after

the

button

lation

During
interval
inadvertent

SIGH

is

During

valve

will

from

the

inspiratory

timer

apnea

“ON/OFF”

Waveform

Breath

exhalation

Breath

is

non-functional

HOLD

is

depressed

end

of

the

released

the

inspiratory

remain

the

will

or 6 seconds

airway

hold,

also

be on

alarms.

BUTTON

operator

and

Peak

requests

phases

available

BUTTON

and

next

volume

hoid,

closed

to

pressure

both

hold

initiated

Flow

are

which occur

of

all

in all

modes

during

both

allow

the

to

Ventilator

held,

an

mandated

has

elapsed,

the

flow

reading

manometer.

breath

prevent

controlled

per

during

breath

of

inspiratory

valve

of

rate

breath

breath.

contro!

types

ventilation.
Inoperative

breath
whichever

and

static

timer

stacking

panel

the

inspi-

are

hold

will

until

either

occurs

the

exha-

inspiratory

and

apnea

and

Activates
once

equal

equal
matically
cmH,O)
modes

AC

LINE

ALT

PWR

SOURCE

12-16

VDC

AC/DC

Switches
external

the

automatic

every

to

to

100

1'/2 x the

the

Peak

increased

during a Sigh

of

ventilation.

Range:

SWITCH

power

power

breaths.

Tidal

source

supply.

Flow

to

1'/ x set

breath.

75

to

3-13

Volume

setting.

Sigh

The

3000

from

function

Sigh

breath

setting,

The

high

value

Sigh

function

mi

AC

LINE

allowing a Sigh

is a controlled

delivered

pressure

(up

to a maximum

available

to

12

VDC

at a

limit

alternate

breath

breath

flow

rate

is

auto-

of

140

in

all

DESCRIPTION

OF

THE

DISPLAY,

CONTROLS

AND

ALARM

INDICATORS

DATA

LINK

HOURS

DATA

Provides

HOURMETER

The

is

operated.

hour.

actual

nance

POWER

Power

cord

DC

LINK

.

optical

hourmeter

activated

and

INPUT

whenever

The

The

hourmeter
usage
schedules.

MODULE

module

encloses

.

connection

records

meter

hours

turns

RECEPTACLE

the

is

allows

as

well

AC

fuse

the

package

.

of

the

8400ST

total

hours

ventilator

non-resettable

the

clinician

as

for

power

On(l)

of

is

AC

and

establishing

and

for

over

to

other

ventilator

line

records

to

determine

Off(O),

current

devices.

operation.

or

12VDC

to

routine

accepts
protection.

-

battery

the

whole

the

mainte-

power

It

Allows
emergency

for

attachment

or

transport

of

an

external

application.

12

VDC

power

supply

for

3-14

SECTION

4

Assembly

Instructions

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

ASSEMBLY

4

INSTRUCTIONS

Prior

to

setting

Ventilator,

and

understand

Cautions

the

and

6

up

the

8400ST

operator

Section 6 -

Notes.”

1.
directed

the

Then

>.

this

İ

pins

diagonal

shown.

to

“

3.
onto

04820)
place
screws
with

Volume

must

first

“Warnings,

Assemble

on

Addenda

go

to

step 2 on

page.

(P/N

04825)

corners

Finger

secure.

Install

ventilator

stand

and

with

(P/N

9/16"

Allen

read

stand

page

A-1

Section.

tighten

(P/N

secure

two

(2)

03275)
wrench.

as

in

as

in

NOTE:

position

to

in

Alignment

ventilator

stand.

pins

(P/N

in

place

一

for

4.

Install

MicroBlender

female

bracket

ventilator

(P/N

04820).

5.

Attach

supply

09520)
adapter

then

connect

adaptorto

outlet
croBlender

other

hose

to

fitting

lator.

hose
oxygen
(P/N

00060)

inlets.

04875)
attachment

the

3800

into

dovetail

provided

stand

one end

hose

(P/N

to

90°

elbow

(P/N

00066),
elbow

auxiliapy 一 一

of

3800

and

end

of

supply

DISS

at

Next,

(P/N

hose

(Not

back

connect

02899)
assembly

to

shown.)

Male

of

on

of

Mi-

the

venti-

air

and

blender

一

一

WARNING:

WHEN

DER
8400ST
CONNECT
BLENDER
AUXILIARY
BLENDER
TION
OXYGEN

FLOW

4-1

USING

IN

CONJUNCTION

VOLUME

WILL

SETTINGS

THE

P/N

09520,

HOSE

OUTLET

AUXILIARY

ENSURE

DELIVERY

3800

VENTILATOR,

ASSEMBLY,

OF

MICROBLEN-

WITH

THE

VENTILATOR/

OF

THE

OUTLET

ACCURACY

AT

THE

THE

VENTILATOR.

THE

ALWAYS

TO

THE

BLENDER.

CONNEC-

OF

LOWER

6/97

ASSEMBLY

WARNING:

ASSEMBLY

INSTRUCTIONS

6.

Install

Humidifier

into

female
provided
tor

Stand

04820).

7.

Wick

and

Heater

Assembly
as

follows:

OF

THE

HUMIDIFIER

the

Heated

Controller

dovetail

on

Ventila-

(P/N

Installation

Module

Instructions body.

c)

Insert a new
below.
packaged,

*

Peel

*

“Pop”

*

Insert

top

*

Gently
meets
3/8
below
bend
of

For

open

wick

wick

of

main

top

inch

the

or

wick

wick

the

individually

sterilized

bag.

into

through

Do

not

insert

body.

push

the

cap.

of

the

wick

main

fold

exposed

by

forcing

following

wick:

cylindrical

bottom

wick

Approximately

will

body.

it

further.

the

wick

through

in

until

extend

Do

not

portion

steps

shape.

of

main

it

HEATER

TION

OTHER

MAY

TER

FEED

TION

a)

or

b)

MODULE

OF

THE

THAN

CAUSE

SYSTEM

OF

THE

Inspect
center

is

tip

card

and

Twist

main

facing

the

body

the

AND/OR

WICK

IN A SEQUENCE

DESCRIBED

A

FAILURE

AND

HEATER

metal

of

occluded

water

top

cap.

replace

top

cap

so

that

rear

of

INSER-

BELOW

OF

THE

MALFUNC-

MODULE.

feed

tube

If

the

tube

deformed,

or

with

new

clockwise

the

inlet

the

Heater

WA-

in

is

dis-

Top

onto

port

Module.

bent

Cap.

the

is

d)

Float

Apply

assembly

Float

e)

Hand-tighten

Cap

Heater

8.

Attach

midifier

Outlet

Controller

ports

pad

should

even

pressure

for

insertion

Assembly.

the

Assembly

Module.

the

Heater

with

positioned

be

free

Dual

on

the

Module

inlet

the

as

shown.

of

damage.

to

upper

into

Float

Humidifier

to

lower

Bottom

the

Hu-

and

float

00423

04709.

To

Heated

Inlet

20225

(Labeled~"To

09534

\

|

N

|

Humidifier

09531

09531

09532

To

Ventilator

Outlet

|

04709

Port

Flow

Humidifier")

Exhalation

\

Valve

20005

20107

(Diaphragm
not

09531

;

09413

'

09413

10081R

Transducer

(not

included)

Body

pictured

20107)

Out

09531

Assembly

TH

2

===

In

=

OIE

N

=

n

*

ο

Transducer

/

ο

ὁ

ο

O

OO

—,

—

기

ㅇㅇ

1

Connector

\

©

A

-

04709

|

09532

Fa

0%

P/N

10172

Kit

(autoclavable)

20225

09531
04709
09534
00423

Patient

Patient

Circuit

90°
Mainflow
22mm

Breathing

includes:

“Wÿye”

Tubing - 30"

Elbow

adapter

Bacteria

I.D.

Cuff

Circuit

w/temp

port

Smooth-Bor®

Filter

Adapter

09532

09413
20005
20107

4-3

Circuit
Watertrap

Exhalation
Exhalation

Tubing - 18"

Vaive
Valve

Smooth-Bor®

Body
Diaphragm

ASSEMBLY

9.

Assemble

tor

breathing

a)

Attach

04709)
"Το
of

b)

Attach
(P/N

adapter,
mainflow

c)

Insert
onto
bacteria
male
(P/N

Attach

Humidifier

d)

Connect
(P/N
Heater
one

NOTE:

(P/N

the

Bird

09413)

inspiratory

breathing

densate

from

INSTRUCTIONS

the

8400ST

circuit

90°

to

as

elbow

ventilator

Humidifier",

adapter

directed

one end

09532)
and

to

the

bacteria

the

22mm

outflow

side

filter,

end

of

90°

04709)

entire

into

assembly

Heater

one

end

09531)

to

Module,

leg

of

watertrap

breathing

have

been

and

expiratory

circuit

to

collect

the

humidifier

Volume

follows:

adapter

outlet

with

male

down.

of

short

circuit

the 90°

other

filter

elbow

end

(P/N

female

of

the

mainflow

then

connect
elbow
cuff

adapter

(P/N

to

Module.

of

circuit

outlet

and

of

the

(P/N

circuit

water

incorporated

limbs

excess

gas.

Ventila-

(P/N

labeled

portion

tubing

to

the

09534).

adapter

22mm

00423).

inlet

of

tubing

Humidifier

other

end

to

09413).

traps

into

of

the

con-

tory

other
ing

NOTE:

(P/N

Once

20005)

Exhalation

safety

tab

will

placement.

i)

Connect
patient

to

and
valve

10.

Secure

into

the

patient

sensor

plug

side

of

patient

end

to

watertrap

。

/

the

Exhalation

is

properly

Valve

remaining

the

Assembly, a spring

engage

the

circuit

other

body

end

on

remote

"Wye"

into

the

Humidifier

“Wye”,

one

leg

of

(P/N

9)

09413).

Install

tion

Diaphragm
(P/N

onto

h)

Install

'

last

leg

tion

(P/N

onto

Valve

installed

and

ensure

piece

tubing

of

to

front

of

(P/N

watertrap,

exhalation

of

ventilator.

temperature

and

insert

Controller.

and

remain-

Exhala-

Valve

20107)

ventilator.

Exhala-

Valve

into

the

Body

20005)

ventilator.

Body

the

loaded

the

09531)

sensor

remote

e)

NOTE:
(P/N

20225)

of

Humidifier

f}

Connect

tubing

leg
end

“Wye”

Inspiratory

second

(P/N

09531)

of

watertrap,

to

inspiratory

(P/N

20225).

side

has a large

Temperature

Connect a third

tubing

(P/N

09531)

piece

to

and

side

of

patient

port

Probe.

piece

to

of

patient

remaining

the

other

of

patient

“Wye”

for

attachment

of

circuit

the

expira-

©

11.

Flow

installation:

Transducer

(P/N

a)

10081R)

Install
portion

Fiow

Assembly

connector)
the
ticle

ventilator

and

wise

position.

male

of

the

Transducer

(gray

female

on

front

casting

turn

clock-

to

lock

into
recep-

of

into

NOTE:
be
alignment.

NOTE:
sure

the

above

When

heard

Position

lines

right

and

side

properly

the

so

that

of

installed, a click

reference

b)

the

Flow

they

are

the

ventilator

marks

Attach

end
Transducer

Assembly

the

Valve

(P/N

outlet

sure

arrow

body

transducer

pointing
direction

flow.

Transducer

directed

will

opposite

of

Flow

Exhalation

Body

20005)
port.

that

on

of

the

in

towards

as

shown

will

be

into

Be

the
the

flow

is

the

of

gas

Pres-

in

c)

Ensure

secure.

WARNING:

BEFORE
“PRESSURE
CIRCUIT

HEATER
LEAK
DAMAGED
SECTION

For

additional

Heated

MicroBlender,

instruction

L1001 - Bird

L1008 - Bird

PATIENT

INCLUDING
MODULE

DUE

TO

COMPONENTS.

14 - PERFORMANCE

Humidifier

manuals:

Instruction

Instruction

all

connections

APPLICATION,

TEST”

THE

HUMIDIFIER

FOR

MISASSEMBLY

information

and

refer

to

Heated

3800

on

Bird

the

following

Humidifier

Manual

MicroBlender

Manual

are

PATIENT

POSSIBLE

OR

(SEE

TEST)

the

Bird

3800

AIR

SECTION

5

Overview

Ventilator

of

the

System

8400ST

Operation

Volume

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION
OVERVIEW

m

PNEUMATIC

OPERATION

E

INTRODUCTION

The

8400ST

tronically

vated
range
system
a

main
processor
control
controls
breath
valve

motion

controlled,

device

of

patients.

is

based

processor, a flow

and a display/exhalation

processor.

overall

rate

timing

control

of

flow

5

OF

THE 8400ST

THEORY

Volume

capable

processors

and

Ventilator

pneumatically

of

The

on

three

The

ventilator

and

exhalation

VENTILATOR

OF

is

an

elec-

acti-

supporting a wide

electronic

microprocessors:

valve

main

functions

volume

control

control

control

valve

processor

such

while

valves.

the

the
actual

as

SYSTEM

The

main

Control

gas
the
flow

Exhalation

The

shown
nents
and

OPERATION

pneumatic

electro-mechanical

Valve

delivery

Flow

Control

from

the

main

flow

in

Figure

are

described

keyed

system

and

to

the

patient

Valve.

of

to

the

Exhalation

patient

Valve

gas

1.

The

numbers

is

based

valves,

is

controlled

while

is

controlled

through

Pneumatic

in

the

following

in

on

the

Valve.

all

exhaled

by

the

8400ST

Figure

two

Flow

All

by

the

is

compo-

pages

1.

FIGURE

ЖОСЯ

PRESSURE

SENSE

LINES

1.

PNEUMATIC

SCHEMATIC,

5-1

8400ST

VOLUME

VENTILATOR

OVERVIEW

M

GAS

INLET

Blended

gas

connected

The

ventilator

the

3800

MicroBlender

PSIG
mixed
ized,
of
the
cm2)

inlet

gas

the

alternate

delivering

range

to

of

the

tor.

The

incoming

a

Coalescing

liquid
stream.
the

removal

nants.

and

This

filter

bowl. A drain
of

NOTES:

m

Coalescing

filtering

microns
microns.

aerosol

and

OF

THE

FILTER

ILL.

8400ST

(2)

n

VENTILATOR

from

an

external

to

the

Blended

is

designed

pressure
from

flow
30-70

blended

blended

Filter

solid

contamination

accumulated

to

any

other

device

in

excess

PSIG

gas

(2)

particles

filter

is

particles

solid

particles

operating

the

gas

which

is

99.97%

source

Gas

Inlet

to

be

used

at

blender.

source

must

of

(2.10-4.90

inlet

passes

from

provided

liquid

down

down

is

be

capable

75

Ipm

to

the

through

reduces

the

gas

is

collected

for

contami-

efficient

to

.75

to

is

(1).

with

50

When

util-

within

kg/

ventila-

both

in

in

.3

SYSTEM

E

The
ambient

PSIG.
in

the

applied

E

"

Filtered
Accumulator
mulator
augmenting
inspiration
MicroBlender
proximately
pressures
cm2)
deliver
flow
the

phase.

vessel,

panied
shown

OPERATION

RELIEF

Relief

event

Valve

if

the

This

to

the

VALVE(3)

protects

excessive

ACCUMULATOR(4)

gas

then

(4).

is

to

store

the

flow

75

of

50

respectively,

flow

rates

capacity

accumulator

Since

charging

by

large

on

page

(3)

vents

inlet

pressure

the

unit.

passes

The

pressurized

blender

demands.

is

capable

lpm

with

and

35

while

up

to

is

provided

during

the

Accumulator

and

pressure

5-3,

Figure

inlet

gas

exceeds

pneumatic

inlet

pressure

into a 1.1

purpose

flow

of

inlet

PSIG

the

120

the

discharging

of

the

gas

during

The

3800

delivering

and

(3.50-2.45

ventilator

Ipm.

This

from

gas stored

exhalation

is a rigid

variations

2.

to

100

system

is

liter

Accu-

for

high

ap-

outlet

can

extra

is

accom-
as

kg/

in

m

The

flow

of

gas

filter

is

from

the

be

removed

contamination.

and

through

inside

out.

examined

the

coalescing

The

filter

must

internally

for

tions
the

the

5-2

It

should

shown

accumulator

patient

be

noted

in

circuit.

that

the

pressure

Figure 2 occur

and

are

not

transmitted

only

fluctua-

within

to

120 —

Flow

ο

(Ipm)

Inspiratory

©

Inspiration

Phase

;

<

Exhalation

Phase

>

T

M

σι

+

©

n

Pressure

一

(PSIG)

D

인

Accumulator

M

REGULATOR(5)

FIGURE

2.

ACCUMULATOR

PRESSURE

WITH

Tim

RESPECT

3.

Pilot

Valve.

4.

Driving

ducer

E

PULSATION

~

TO

PATIENT

pressure

pressure

sensing

DAMPENER(6)

INSPIRATORY

for

actuating

for

the

lines

purge

the

Flow

Trans-

functions.

FLOW

Satety

A

precision

establishes

.

PSIG
used

1.

2.

(1.40

for

the

Aprecise
the

Flow

of

accurate

Driving
Pressure

pneumatic

the

system

kg/cm2).

following

stable

Control

pressure

Line

flow

Purge

supply
Valve

control.

for

Regulator

pressure

This

pressure

functions:

pressure

for

purposes

the

airway

function.

(5)

at

20

is

to

-

The
chamber

200
of

very

turn

in

order
pressure.
tions,

5-3

Pulsation

with a volume

ml.

The

Flow

fast

changes

forces

the

to

maintain a constant

During

pressure

Dampener

Control

regulator

these

fluctuations

(6)

of

in

gas

to

transient

is a rigid

approximately

Valve

is

flow

which

respond

system

flow

occur

due

capable

in

rapidly

condi-

to

the

OVERVIEW

OF

THE

8400ST

VENTILATOR

SYSTEM

OPERATION

response
tion
Flow
mizing

M

FLOW

time

Dampener

Control

the

pressure

CONTROL

of

the

acts

Vaive

and

À

Gas

flow

to

the

patient

Flow

Control

electro-mechanical
of

the

electro-mechanical
formed
tling

flow

Valve

to

linear

through a variable

(7).

device.

motion

Regulator.

as a buffer

Regulator

fluctuations.

VALVE(7)

is

controlled

The

driver

required

The

between

valve

Rotary

is

for

poppet

Pulsa-

the

by

mini-

by

the

is

an

motion

trans-

throt-

type

orifice.
brated
tween

the

cm2)
sonic
approximately 3 PSIG
flow
downstream

(210

combination

relationship
cal
used

control

range
approximate
optical
position.

The
flow

The

valve

to

obtain a known

position

system

flow

through

cmH,0)

driver

by

following

delivery

pressure

through

up

to a downstream

the
pressures

of

between

position

the

Microprocessor

flow

and

of

the

valve

resolution

sensor

for

is

designed

and

orifice

the

valve

in

the

patient

features

and

volume

is

detects

table

describes

various

and

relationship

opening.

at

20

PSIG

variable

pressure

(210

is

unaffected

of

up

leads

the

electro-mechani-

flow

to

the

0-120

of 1 Ipm/step.

the

‘zero’

breath

(1.40

orifice

cmH,O).

to 3 PSIG

circuit.

to a known

rate

which

Controller

patient.

Ipm

with

flow

the

method

types:

cali-

be-

With

kg/

is

of

Mass

by

This

is

to

The

an

An

of

BREATH

Volume

Spontaneous

Pressure

Controlled

TYPE

Support

METHOD

Using

the

seguence

settings.

Using
Microprocessor

required

Identical
maintain

the

known

Microprocessor

to

feedback

to

maintain a stable

to

spontaneous

the

OF

relationship

Controller

satisfy

pressure

the

from

the

Controller

support

INSPIRATORY

between

moves

tidal

volume,

airway

breath

pressure

moves

the

PEEP/CPAP

except

setting.

FLOW

valve

the

valve

peak

flow,

transducer,

valve

to

pressure.

the

flow

DELIVERY

position

in a predetermined

provide

and

and

waveform

the

flow

is

controlled

-

flow

as

rate,

to

5-4

m

CHECK

VALVE(8)

3.

In
Valve
and
controls
level.

conjunction

(7),

Microprocessor

Airway

Pressure

PEEP/CPAP

with

the

Flow

Controller

Transducer

to

the

Control

(10),

desired

The

orificed
combination
diaphragm
the

patient

This

is
through
ventilator

Ш

EXHALATION

to
is

critical

the

in

B

Check

with

breathing

Safety

an

Valve

the

insure

when

one

the

Valve

inoperative

VALVE(9)

IAE

(8)

works

exhalation

way

spontaneously.

patient

(12)

valve

gas

flow

is

breathing

with

condition.

in

the

when

Additionally,
phragm

taneous

flow.

m

AIRWAY

the

exhalation

acts

as a check

breathing

PRESSURE

to

TRANSDUCER(10)

AS

LAMA

The

Airway

converts

analog
Microprocessor

following

Pressure

airway

signal.

functions:

pressure

This

Control

valve

valve

insure

one

J

Transducer

to

an

signal

is

used

system

dia-

during

electrical

way

(10)

by

for

spon-

gas

the

the

All

exhaled
trolled
of

exhaled
valve
tro-mechanical
forms

processor

1.

2.

is

Closes
circuit

Opens

exhalation

gas

by

the

Exhalation

gases

controlled

the

following

Control:

the

exhalation

during

wide

for

from

the

patient

Valve

through a large

by a linear

actuator.

functions

all

types

at

the

minimum

The

leg

of

inspiration.

beginning

flow

is

con-

(9).

The

poppet

motion

valve

under

of

elec-

per-

Micro-

the

patient

of

resistance.

flow

m

m

m

m

m

m

5-5

PEEP/CPAP

Pressure

High

Low

Low

Detection

Supported

Pressure

Peak

PEEP/CPAP

control

Limit

Pressure

Alarm

of

Patient

Breathing

Alarm

Alarm

Initiated

Breaths

OVERVIEW

m

SAFETY

The

safety

Solenoid

(12).

is

system

chamber.

poppet
patient

lost

state,

upper
ambient
Valve

spontaneously

m

During

open,

or

the

chamber

poppet

MACHINE
TRANSDUCER(13)

OF

SYSTEM(11)(12)

system

(11)

normal

passing

pressure

This

and

seals

system.

the

unit

Solenoid

pressure.

THE

8400ST

consists

that

drives

20

to

closes

the

When

is

in a Ventilator

of

the

allowing

from

PRESSURE

p

zz

|

the

operation

PSIG

the

upper

the

inspiratory

electrical

closes,

Safety

This

opens

the

‘room’

ZEZE

Z

|

VENTILATOR

(1.40

safety

of a Safety

Safety

the

solenoid

kg/cm2)

safety

valve

leg

power

Inoperative

venting

patient

air.

Vaive

the

to

the

to

Safety

Valve

valve

of

the

is

inspire

SYSTEM

The

monitors
transducer
the
certain
cessor

sure

within a predetermined

(see

allows

sure

inspiration.

an

monitor

m

The

provides-a
through
This

into

fixed

orifice

-10
blocked,

ducer

Check
the
pressure

OPERATION

Machine

Airway

phases
Controller

signals.

"CIRC

for

drops

audible

AIRWAY

PURGE(14)(15)(16)(17)

ainvay

prevents moisture

the

orifices

(16)

lpm

will

Valve

pneumatic

Pressure

machine

is

used

Pressure

of

inspiration,
compares

The

two

Display"

transducer

in

the

patient

If

this

test

alarm

window.

forward

the

ventilator

purge

pressure

not

exceeds

and

PRESSURE

pressure

airway

pneumatics.

(14)

and

are

calibrated

fiow.

exceed

(17)

system

Transducer

outlet

pressure.

as a safety

Transducer.

the

the

signals

range

in

Section

tolerances

fails,

“CIRC”

must

of

circuit

the

flashes

SENSE

monitor

ků

(ıs

sense
flow
pressure

In

to

the

100

prevents.

purge

of

biended

from

(15)

to

the

gauge

cmH,O.

in

the
drive

line

sense
migrating

and

provide a .05

event

back

event

(13)

This

io

During

Micropro-

two

pres-

agree

pressures

4)

which

and

_pres-

during

unit

sounds

in

the

LINE

16

purge

gas

line.

up

The

two

the

variable

the

line

and

trans-

The

flow

into

airway

pressure.

-

is

SYSTEM

PRESSURE

TRANSDUCER(18)

The

System

continuously

kg/cm2)
an

electrical

cessor

mined
pressure
activate

or
the
The

system

tolerance

Ventilator

severity

following

Pressure

monitors

system

analog

compares

is

out

of

the

Low

Inoperative

of

the

conditions

pressure

pressure

range.

Inlet

to

Transducer

the

signal.

this

signal

range,

Gas

out

of

be

out

(18)

20

PSIG

and

The micropro-

to a

If

the

the

controller

Pressure

state

range

can

cause

of

range:

(1.40

converts

predeter-

system

depending

condition.

the

it

to

will

Alarm

on

sure

sense

to

the

and

to

Every
inspiratory
designed
ential
and
to
ing
purge

the
transducer.

zero

urements

independently

nent

m

pressure

allow

purge

moisture

voltage

reference

variations.

DIFFERENTIAL

lines

differential

close

50

interval a microprocessor

off a

seconds

phase,

to

connect

the

the

pressure

from

from

This

can

TRANSDUCER

from

the

pressure

5.0

Ipm

(approx.)

the

purge

both

transducer

5.0

ipm

(2.5
sense

accumulating.

the

differential

voltage

point

so

that

maintain

of

temperature

their

PRESSURE

(20)

Flow

Transducer

transducer

flow

source.

and

during

valves

ports

is

of

(20)

together

ipm

per

lines

During

samples

pressure

then

used

volume

accuracy

and

(20)

an

are

the

differ-

port)

flow

prevent-

this

as

a

meas-

compo-

8

Insufficient

m

Clogged

mw

Regulator

m

PURGE

During
(19)

normal

are

configured

gas

inlet

filter

out

of

VALVES

000

Yoo

operation

supply

calibration

(19)

the

purge

to

connect

the

valves

pres-

K

The

differential
meásures
orifice

through
the

differential
then
volumemetric

both

the

of

the

the

transducer

converts

Tidal

Volume

Pressure

pressure

Flow

Transducer.

pressure. A microprocessor

the

differentia!

flow

rate

and

Transducer

across

increases

and

Minute

the

As

pressure

then

calculates

Volume.

(20)

variable

the

flow

so

does

to

a

OVERVIEW

OF

THE

8400ST

VENTILATOR

SYSTEM

OPERATION

m

FLOW
(21)

The

flow

the

following

©

Variable

(a):

The

flow

chambers

Orifice
bends
ates a small

tween

ence

amount

-

transducer.

When a flow
attached
ventilator,
bers
pressure
tial

pressure
pressure
chambers
sends

TRANSDUCER

transducer

components:

(ο)

assembly

(b)

CE

Orifice

transducer

separated

flow

element.

in

the

direction

pressure

the

two

chambers.

in

pressure

of

flow

to

the

are

transmitted

transducer

difference

in

an

analogue

is

passing through

transducer

the

connector

pressures

transducer

the

transducer

ASSEMBLY

consists

of

(a)

Flow

consists

directly

between

signal

Transducer

of

two
by a variable
The

flow

element

of

flow

and

cre-

difference

The

is

properly

port

in

to a differential

(20).

The

measures

which

be-

differ-

related

the

on

the

the

cham-

differen-

the

two

and

then

is

to

the

the

-

digitized
sor.
Since

material
and
cycles,
sure
thus
to

determine

seconds,
the

minute
then

next

О

Pressure

These

respective

bers

ential

O

The

connects

to

the

mation

to

determine
curve.
optical
teristic
ducer.
factory

racy

and

the

flow

whose

remain

the

difference

can

be

the

measured

volume.
displayed
breath

two

in

the

pressure

Flow

Transducer

flow

transducer

the

ventilator,

required

Each

code

calibration

This
and

is

maintained.

“read”

constant

relationship

used

flow

microprocessor

cycle.

Sense

sense

pressure

flow

flow

the

connector

which

calibration

insures

by

the

element

properties

and

flow

These

at

transducer

transducer

but

by

proper

is

for

between

flow

by

the

rate.

the

lines

Every

to a tidal

volumes

beginning

Lines

transmit

of

the

Connector

connector

transducer

also

the

microprocessor

identifies

curve

is

that

microproces-

made

millions

is

microprocessor

provides

calibration

incorporates

of

done

system

from

are

known

of

pres-

known

(b):

two

to

(20).

that

and

four

translates

volume

are

of

the

the

cham-

the

differ-

(c):

not

assembly

the

charac-

trans-

at

the

accu-

a

milli-

and

only

infor-

an

5-8

EH

8400ST

The

following

understanding

CIRCUIT

theory

of

operation

8400ST's

BOARDS

and

their

THEORY

may

be

circuit

OF

helpful

boards:

to

OPERATION

you

in

troubleshooting

and

MAIN

Please

D

RESET

O

MICROPROCESSOR:

AND

CLOCK:

R64,

U31
10

circuit,

clear

ram
(R80,R81,R82,&

to

pin

The

The

microprocessors
pin

converters,

referto

C65,

pin

goes

pin 6 is

CLR

U29

start

running.

9,

the

clock

12

20

XTAL2.

the

and

D5

11.

When

LO.

if

this

HI,

line

at

pin

27.

microprocessor

signal

Mhz

clock

the 2 Mhz

U16

BOARD

schematic

form a power

/RST,

pin

the

U28,

This

Q2)

U28

is

generated

is

U22

and

U19

is

LO

READY

pins

signal

to

the

pin 12,

to

output

(CPUA),U33

PCLK

U20.

50010

50012

pin

and

line,

3,

11

goes

microprocessor B U33

the
start

by

from

for

references.

on

delay

11

the

pin 5 goes

and

thru

RESET A line

up.

U31,

pin

(CPUB)

from

for

is a Hl
output

also

the

an

invertor

8284-1

12

OSC,

U31,

pin 2 goes

the

level,

from

and

pin

HI

/RES

goes

IC,

19

RES

then

the

fault

and

on

stage

pin 9 to

LO,

from

sent

XTAL1

to

reset

input,

the

RESET

monitor

releases

the

allowing

crystal

to

the

dual

enable

X1.

the

and

U29

A/D

the

pin

port

it

U22

The

MAIN

from

EPROM
bites
address

pins

39 - 32

decoded

(right
applied
order 8 bits
come
decoding.

bus

when

controlled

microprocessor,

microprocessor

U24.

(270256)

bus

is

multiplexed

(4D10 - AD17,)

with

the

side)

of

U23

to

the

EPROM

of

the

directly

from

The

the

Program

by

the

program

U22

The

EPROM

or

64K

(270512)

with

is

routed

ALE?

address

microprocessor,

U22.

(Address

containing

program

bus.

U22

pins

21 - 28

instruction

Store

5-9

only

ENable

retrieves

is

jumper

with

the

Latch

address

memory

The

the

the

JP2.

data

bus.

to

the

Enable)

chip
high 8 bits
(418 - A115)

is

placed

PSENT

instruction

program

selectable

The

lower 8 bits

The

left

side

information

U24

of

on

the

signal

instructions

to

lower

of

line.

The

along

the

address

without

multiplexed

is

is

read

be

either

of

address

U23

and

outputs

now,

are

with

need

LO,

as

into

the

the

bus

of

AD

the

32K

bus,

high

OVERVIEW

©

MICROPROCESSOR

OF

THE

8400ST

Please

A18,
are
CSSSW2,

WR)

peripheral

also

The

5-8

The
switches
7-13

VENTILATOR

MAIN

refer

(Con't.):

A19,

and

decoded

and

enable

input

the

PAL

MODE

from

pins

Front

panel

SW2

so

that

BOARD

to

the

schematic

A110,

into

/CSPAL.

the

microprocessor

output

U25.

switch,

J3

thru

they

A115

Chip

Enables

chips,

SW1,

1-6.

RESET,

SW7

can

be

SYSTEM

50010

50012

are

These

(U16,

is

read

SIGH,
are

latched

read

into

OPERATION

(Con't.)

for

references.

sent

to

U32,

pins

1,2,

CSADC,

lines,

to

into

SELECT,

the

CSMUX1, CSMUX2,

and

the

ReaD

read data

U20, U15, U19, U30, U26,

main

into

Main

from

microprocessor

and

U27

(74HC244)

processor

and

and

MANUAL

,3

and

WRite

write

port

BREATH

from

when

6.

These

/CSSW1,

(AD,

data

to

the

U27)

and

U22

pins

J3

pins

requested.

/

The

Main

processor

Ram

U29.

This

lines

A18

and

A115

and

the

data

lines

RD2,

WR2

lines

potentiometer

Processor
information

This

information
processor
be

dealt
interrupt
and

perform
every
gets

The
board)
transmits
on

goes

exists

on

millisecond,

taken

main

and

the

RXD

to

U11

on the

the

power

1,2,

or

190-193

settings

thru J2

for

requests

with.

/NT7

other

care

processor

the

on the

(receive

which

serial

board,

talks

is

done

using

and

A20

to

from

the

that

then

the

the

multiplexed

is

also

sent

it

is

put

U29

pin

16

to

the

main

tasks

but

32

of

eventually.)

U22

Display

TXD

(most

processor

(transmit

data,

drives

bus

between

the

likely

to

the

Display

the

the

RD1,

A27

„the

Display

the

operator

Display

displays

to

the

on-it's

is a 1

every

tasks

talks

the

main

millisecond

processor

millisecond.

are

to

data,

pin

10)

fiber

processor

fault

processor

data

lines

WR1

lines

address

Processor.

processor

Dual

data

causing

scheduled

the

motor

U33

pin

line

optic

U22

code

lines

sets

on the

Port

lines

processor

over a serial

11)

(J1

pin

interface

and

U33

will

1).

thru

A10

to

from

the

A28

The

switch

are

read

writes

Display

Ram.

so

that

clock

which

it

to

read

(Not

every

in a queue

line

(J1

15).

The

J15.

on

the

shut

down

the

Dual

A17

„the

Main

processor

and

A215

and

into

the

out

to

J2 the

board

Then

when

the

information

triggers

the

panel

thing

and

U3

(on

data

link.

pin

7)and

TXD

If a problem

main

board

with a fault

Port

address

and

the

Display

display

(50000).

the

Main

can

an

pots

is

done

every

the

line

thing

power

It

receives

also

and

code

U3

5-10

MAIN

Please

O

MICROPROCESSOR

The

EPROM

(27C256)

bus
32
ALE2
containing

program

address

pins
instruction

ENable

instruction
U33

displays
about

refer

(Cont.):

DISPLAY

U35.

or

is

multipiexed

(AD20 - AD27,)

(Address

only

memory

bus.

21 - 28

is

PSEN2

is

the

display

at a

62

Hz.

BOARD

to

the

schematic 50012

microprocessor

The

EPROM

64K

(270512)

with

the

is

routed

Latch

address

The

(A28 - A215)

placed

signal

read

1666

Enable)

information

chip

U35

high 8 bits

without

on the

is

LO,

into

the

processor,

processor

Hz

rate.

50010

is

with

data

to

along

multiplexed

causes

This

(Con't.)

U33

fetches

jumper

JP3.

bus.

the

left

line,

The

now,

with

of

the

address

need

as

controlled

an

translates

for

selectable

The

The

side

the

U33.
update

references.

the

program

to

lower 8 bits

lower

outputs

are

high

of

decoding.

AD

address

of

U34

(right

applied

order 8 bits

bus

come

bus

when

by the

of

the

into a total

instructions

be

either

of

the

bus,

and

decoded

side)

of

to

the

of

directly

The

program

the

Program

processor,

front

panel

refresh

32K

bites

address

pins

39

with

U34

EPROM

the

from

Store

the

LED

rate

of

from

-

the

U33

The

Display

valve.

O

PAL

WATCHDOG

connector

CIRCUIT:

The

PAL

If

the

correct

U28,

top
bottom
constants
connected

and

pulses

stop

because
conditions
and

pin

slow

condition

A

fast

condition

a

PAL

the

PAL,

the

VENT

This

to

IC,

half

half

are

to

cause

12

even

and

INOP

is

detects

stop

to

processor

done

the

power

U25

is

sequence

checks

set

U28.

coming

they

go

HI

will

will

if

the

if

it

is

condition

also

with

enabled

of

if

the

pulses

by

the

If

the

are

too

U28

pin 5 to

sending a RESET

latch,

restart

watchdog

not

responding

controls

the

Data

board

from

at

pin 3 and

events

resistors
pulses

out

and

to

occur,

pulses

slower

are

of

pin

fast,

then

go

LO

the

only

itself.

NOTE:

timer

occur

the

D/A

that

that

is

passed

the

P1

port

data

is

then a pulse

are

faster
than
R61,

too

5.

If

U28,

causing a VENT

way

is

disabled
then
after

than

99

milliseconds.

R62

and

fast,

U28,

the

pulses

bottom

to

the

processor

to

reset

The

processor

because

the

processor

writing a fault

controls

across

pins 1 thru

written

.45

capacitors

top
are

half

it

the

to

and

is

output

milliseconds.

The

half
too

slow,

times

INOP

and O chips.

is

to

remove

will

it

reads

stops,

code

the

exhalation

J16

8.

read

from

at

pin 14.

The

time

C58,

C60

never

times

or

if

out.

Both

condition,

power.

not

run

without

data

and

waits

3, 4,

or

it.

out,

they

A

from

for

5.

5-11

OVERVIEW

O

A/D

OF

THE

8400ST

Please

CONVERTER

The
the
to

R50
Pressure

-VBI

#12V

this

and

RP3,RP4,U17,U18,U19,U20

to
against
42, 43,

goes
overrange
61,

by

RP6

-form
and Proximity

”going

VENTILATOR

MAIN

refer

to

CIRCUITS:

circuits

transducers

digital

to

J17-6,

REF

forms a dual

U21A

digital

into a Vent

70,

an

overrange

(fault

noise

overrange.

convert

numbers

R62

(pins

J4-2,

2.5VREF

J1-19.

make

circuit.

each

44,

52, 53,

or

75,

80, 85).

codes

filters

BOARD

the

schematic

the

and

the

that

J3-16

Machine

The

redundant

one

During

other,

an

if a close

54,

Inop

open

Open

condition

30,

for

the

pressure

SYSTEM

50010

50012

front

panel

generated

the

processor

to

J3-40

Pressure

trom

U3

pin 2 FLOW

same

analog

normal

62,

condition.

circuit

31).

A/D

to

inputs

system.

to

and

match

63, 64, 73,

condition

wipers

due

to

RP1,

inputs.

5.1VDC.

OPERATION

(Cont.)

for

references.

pots

and

pressure

DC

voltages

can

use.

even),

J4-4,

digital

U21B

operation

This

on
pull

RP2,

Vpot

and

are

seen

RP1,RP2,U13,U14,U15,U16

interface

make

data

is

not

found, a fault

or

78)

also

(fault

the

potentiometer

up

resistors

RP3,

D6,D7,D8 & D9

This

is

from

The

inputs

J3

35,37, a 39

Proximity

PRESSURE

at

both

circuit.

up

an

is

read

is

sent

and

happens

codes

RP4,

to

40,

R58, R59,

C14-29,

keep

the

if

signals

analog

Pressure

A/D

identical

and

any

41, 50,

are

limit

A/D

from

voltages

are

pots

System

J17-3

code

the

and

converters,

analog

checked

(32,

ventilator

input

51,

detected

RP5

C30-45

the

Machine

from

J4-6,

33,

is in

60,

and

The

A/D's

signals
The

(U13,U14,U17 & U18)

done

forth

using
A/D
voltages

but

made
oscilloscope. A more
to

and

condition

until

compare

voltage

and

inputs

thru

over

CSADC,

converters

after

of

decode

shorts

power

levels

are

controlled

switch

are

selected

the

switch

the

AD10 - AD17

/RDATD1,

U16,

are

seen

passing

the

the

is

occurs

switch

through

signals

bidirectional

the

only

the

is

removed.

selections

both

by

the

decode

decoders

U20

at

the

observed

failed

into

signals

one

at

and

are

bus,

/ADATD2,WR1,

and

inputs

U13,

sophisticated

data.

too!

that

switch

You

to

and

out

5-12

main

processor

(CSADC,

atime

converted

U15

and

and

controlled

the

MAIN

(left

side)

U14,

U17,

at

the

output

logic

An

ohmmeter

can

help

condition

can

check

see

if

they

of

the

CSMUX1, & CSMUX2).

by

the

analog

into

digital

U19.

processor

you

between

switches

Data

and

of

U13

and

U18,

with

analyzer

here.

and

are the

thru

the

chip

switches

data.

is

sent

by

the

Main

A10

lines

U22.

,U14,

the

to

signal

same

and

U17

no

sense

lowly

would

check

When a Vent

level

the

two

and

into

decode

This

is

back

and

processor

between

Stable

and

be

needed

continuity

are

circuits

also

the

A/D's.

DC
U18,

can

Inop

held

the

be

and

MAIN

О

REFERENCE

O

FAULT

MONITOR

Please

CIRCUITS:

U1

from

R1, R2,

the

reference
against
during

SVA,
two

5VA

U3

It

is

processor

refer

generates

the

transducer

and

5VA

supply,

supply

this

its

power

then

it

buffer

and

is

the

amplifiers,

VPOT

the

2.5

reference

will

CIRCUITS:

BOARD

to

the

schematic

both

the

board

R3

divide

and

for

the

supply.

shuts

Volt

halt

The

up

self

itself

respectively

reference

for

with a fault

50010.

50012

5VA

and

9680,

the 8 Volts

4.97

volts

A/D

converters.

processor

test,

and

down

so

the

with a fault

that

the
at

supply.

fault

(Con't.)

for

VPOT

is

the

into

forthe

measures

if

it

is

voltages

the

outputs.

It

monitor

code

70-78.

references.

references.
reference

approximately

VPOT

not

is

circuit

supply.

All

voltages

proper,

code

at

input

powered

and

The 8 Volt

for

these

the

VPOT

compared

80-87.

pins 3 and 5 are

by

if

it

voltages.

5.00

Volts

The

5VA

are

measured

supply

U1

constitutes

the

Va

is

not

correct

supply,

for

is

the

to

the

supply.

the

U2

is a square

If

the

5V,

wave

HI,
and
than

and

stuck

way

pin 9 of

of

(
coupled
charges

cease,

LO

Vent

The

front

the

pot
Volts

is

passed

the

voltage

when

the

down,

HI or

at

pin 7 of

U4

U4

(R30

AC

coupled ) so

through

then

and

also

Inop

VPOT

pane!

50000

opens

at

pin

wave

sensed

the

2.5
and

LO

(R26
and

capacitor

condition.

current

pot

display

then

4,

by

to

at

pin 5 is

left

side

Volt

reference.

if

the

(this

U4

and

R31).

that

capacitor

C7

discharges

the

output

by

sensing a reduction

board

the

this

causes

oscillator

R18 & R19

output

(R22

C7

is

voltage

pin

greater

of

R22

5V

goes

is a fail

and

R27).

Pin

13

if

pulses

C6,

causing

pin 1 to

monitored

is

set

at

the

5-13

whose

2.

is

This

too

condition).

R23).

The

of

are

rectified

pin 7 of

through

be

by

so

pin 5 of

output

is

within

That

is

than

LO

then

causes

high

or

The

VMis

U4

is

present

resistor

LO.

U6

at

of

that

the

U6

pin

output

the

The

tested

applied

U6

2 to

pin 3 is

proper

when

VA

into

ALO

pin

VPOT

becomes

the

2.5

Volt

the

voltage

the

output

too

low,

5VA

is

tested

the

to a differentiator

at

pin

DC

to

be

R35

signal

5.

This

current.

VPOT

load

go

LO.

sent

limits

by

HI.

the

left

side

reference

at

pin 2 to

then

is

tested

the

same

13,

then

D1

and

If

the

causing

here

detects

The

is

650

greater

to

U4

square

of

R17
at

pin 5 is

toggle

the

output

the

same

way

at

they

D2,

pulses

pin

7 to

results

an

open

trimmer

Ohms.

than

the

pin

5.

is

pin

4,

less

up

gets

same

way

at

pin

11

circuit

are

and

be

in

a

on

Ifa

8

OVERVIEW

OF

THE

8400ST

VENTILATOR

SYSTEM

OPERATION

MAIN

Please

O

FAULT

D

ALARM

MONITOR

This
switch

test),
set
ventilator
of
fault

14
either a reset
exists,

forcing a VENT

CIRCUIT:

The

from

when

the

switch

left

pins
switch
ALARM?’

U8
alarm

not

HI

LED

INOP*

signal

the
flashing

refer

CIRCUITS

output

and

the

and

14

by

R34

and

breathing

the

fault

monitor

conditions

is

LO

then a fault

then

alarm

latch

side

11 of

pin 3 to

latch

(off),

front

circuit

the

5V

power

is

enabled

ALM

of

R85

U40

has

been

at

ON. Pressing

the

later

and

set

signal

is

applied

panel.

on

BOARD

to

the

schematic

(Con't.):

is

connected

system

(Lo

limit

C8

so

does

system

are

fed

condition

the

output

INOP

is

powered

supply

is

SLNC

R47

go

alarm

the

ALARM“

at

and

through

jost.

SW‘

only

and

its

pressed.

or a VENT

HI. A HI

OFF

processor

R47

to

Q1

This

off.

TROUBLESHOOTING

50010

together

pressure

test).

that

not

to

exists.

(HI

pin 5 will

and

A latch

when

resets

after

output

signal

the

alarm

but

LO,

also

to

form a power

LED

(Con't.)

50012

with

J5-4

This

node

momentary

cause

from

U6

pin 9 without

This

at

pin

RESET

by a supercap

R42

is

the

5V

power

pin

An

INOP*

signals

will

turning

goes

is

made

Vent

pin 1 of

signal

7)

or

be

LO

condition.

and

formed

goes

and

latches

is

turned

13

alarm

at

at

pins 6 and 7 of

silence

the

turn

off

the

to

U9,

to

for

references.

the

J1-5

comparators

has a 1
fluctuations

U6

is

fault

clearing

D3.

by

low

signals

generated

R48

switch

processor

the

alarm

then

driver

blink

second

Inops.

is

connected

the

time

sent

condition

C9

This

maintains

the

two

at

R43.

the

alarm

off.

This

the

(pins

with

silence

back

to

U8

to

by

timer

Exhalation

U5

pins 1 (Hi

time

of

Vors

At

C8

the

so

delay.

to

U31

pin

(LO

at

both

halves

(Vb)

and

is

an

top

parts

The

alarm

OFF

is

connected

processor

from

the

processor

2, 1 of

U7

the

U8)

will

drive

the

power

to

turn

function

on.

The

where

Vent

U10

the

pin

the

Inop

Valve

limit

constant
because
bottom

that

all

If

U6

pin

6.

At

U31

pin

6)

of

U28

charged

alarm

of

U8,

and

silence

at

J3-14,

to

that

the

will

cause

the

on

does

ALARM"

and

its

VENT

output

LED

3,

of

half

if

on

if a problem
not run

with

both a checksum

both

pass

internal

103

indicate a faulty

or

RAM

exists

it

will

you

memory

shut

can

on

the

bus

down

and a CRC

be

assured

of

the

processor).

between

with a fault

that

processor

code

(cyclical

the

U11 and

105

through

redundancy

Eprom i is

is

checked

5-14

U8,

good

on

U9,

and

108.

check)

(fault

power

U10,

the

The

Eprom

at

power

codes

up also

6, 7 if

processor

on,

not).

(fault

.

is

checked

if

these

The

codes

will

100-

The

to

plug

processor

address
frequency
of

HI

have

duty

These

up

the

O

POWER

only

way

in

an

acts

lines.

of
going
twice

cycle

pulses

the

sguare

IC's

also

ventilator

to

troubleshoot

Eprom

Starting

the

SUPPLIES

filled

like a binary

with

line

before

at

the

number

contain

(fault

Please

of

waves.

codes

refer

TROUBLESHOOTING

the

with

NOP

counter.

A0,

it.

clock

pulses

some

105 - 108).

POWER

to

address

instructions

and continuing

Note

that

frequency

than

RAM

memory

the

schematic

bus

Signals

the

BOARD

can

A0 - A7

due

to

line

inside,

(Con't.)

and

make

into

the

be

observed

to

A415,

are

not

the

ALE

before

50022

it.

and

50020

for

sense

U24,35

each

solid

decoding.

A8 - A15

this

references.

out

socket.

at

address

hi

levels,

is

tested

of

the

U24,35

Each

will

it

with a scope

Then

line

but

look

upon

the

Eprom

is

half

are a burst

burst

will

normal,

powering

is

the

50%

The

power

through

goes

to

capacitors

valve

and

is

casting.

7,8. A preregulated
board

supply.

Va

voltage

filtered by

-BIAS

positive

O

OVERVOLTAGE

CIRCUIT

U1

senses
resistors
shorts
blows

comes

the

AC / DC

the

bridge

C4,

motors.

applied

C9

is

by

R1

at

is

C2.

SUPPLY

to

Neg

an

R2

and

out

(crowbars)

the

fuse

in

from

switch

rectifier

and

CS.

This

This

goes

to

O1,

the

its

output

voltage

J1-9

(5Vunreg)

]

generated

This

is

sent

is

generated

voltage

overvoltage

R3.

F1.

generator.

Upon
the

the

Transformer

at

J8

through

at

J5.

The

voltage

to

D3

and

5V

regulator

filter,

and

is

sent

to

sense

from

the

AC

to

the

main

from

condition

overvoltage,

Vm

supply

DC

is

then

mounted

it

is

sent

to

the

(or

the

on

(input

through

fuse

voltage

called

more

to

fault

early

DC)

line

board

+5v

supply

the

5V

U1

triggers

to

J9

and

F1.

The

gets

Vm

and

powers

filtering

on

the

monitor

dropout

at

J14-1,2.

supply

5V

by

the

main

of

by

D1,

and

through

SCR

regulator).

then

AC

or

DC

filtered

rear

board

on

the

D2

U2.

by

the

C7 and C8

of

the

by

the

main

5V

and

UZ

Q2

and

This

J14-

isa

5-15

OVERVIEW

O

REFERENCE

(

MICROPROCESSOR:

OF

THE

8400ST

Please

CIRCUIT:

U10
reference.
reference.

R20

motor

Q4
monitored
This

the

VENTILATOR

POWER

refer

to

is

the 2.5

It

The

divide

and

voltage

processor

the 2.5

current

U8

are

thru

will

BOARD

the

schematic

Volt

reference

also

is

used

2.5

voit

Volt

reference

used

to

divider

be

shut

U3

pin

14

SYSTEM

50020

50022

supply

in

the

reference

from

pin 2 of

supply.

generate

stage

R17,
down
if a failure

with a vent

OPERATION

(Con't.)

for

references.

and

it

generates

Exhalation

is

powered

U10

the

VEXH

R18

is

drive

into

to

J1-19

inop

detected.

circuit

by

the

1.13

Volts

voltage

to

the

condition

the

for

Vm

of

12vde.

A/D

1.13

Volt

voltage

supply.

for

the

flow

It

circuits.

thru

Q3

R19,

is

or

by

The

clock
microprocessor
main

The

microprocessor
U5.
(270256)
bus

is

-

32

the

ALE
containing
program
address

U3,

pins
program
Program
microprocessor,

The

over a serial
line

and

exists

main

signal

board

The

(AD30 - AD37,)

motor

processor

through

EPROM

or

64K

multiplexed

(Address

only

address

memory

bus.

The

21 - 28

instruction

Store

receives

on

the

ENable

processor

data

serial

is

generated

U3,

pins

18,

J1-11.

fetches

is

jumper

(270512)

with

is

Latch

chip

high 8 bits

(A38 - A375)

is

the

instruction

talks

port.

on

the

bus

will

shut

with

the

data

routed

Enable)

information

U5

along

placed

PSEN3

to

It

transmits

RXD

between

down

by

the

12

19.

The

RESET

the

program

selectable

JP2.

bus.

to

the

with

of

the

without

on

the
signal
is

the

(receive

with a fault

to

The

The

left

line.

The

now,

the

address

need

multiplexed

is

read

into

main

processor

on

the

data,

U11

on

Mhz

crystal

pin 9 comes

instructions
be

either

lower 8 bits

lower

side

of

outputs

are

high

bus

of

LO,

as

the

TXD

pin

the

main

code

32K

address

U4

and

(right

applied

order 8 bits

come

decoding.

AD

controlled

processor,

(on the

(transmit

10)
board

1, 2,

X1

and

from

from

EPROM

bites

of

the
bus,

decoded

side)

to

the

of

directly

The

bus

when

by

U3.

main
data,

line.

Ifa

and

190-193.

the

the

address

pins

with

of

U4,

EPROM

the

from

the

the

board)

pin
problem
U10,

39

11)

the

5-16

POWER

Please

0

SAFETY

O

FLOW

SOLENOID:

The

condition)

13,

These

provides

The

Purge

MOTOR

The

pins.

refer

safety

or

by a power

signals

Purge

solenoid

DRIVE

Flow

to

solenoid,

by

turn

solenoid

CIRCUIT:

signais

BOARD

the

schematic

the

RESETA

failure

are

sensed

off

spike

is

controlled

are

50020

50022

connected

signal

(it

is

normally

at

pin

protection

is

enabled

by

output

from

(Con't.)

to

J10,

on

1, 2 of

for

with

the

the

Main

U9

for

references.

can

be

J1-11,

U7.

pins 3 and

by

open

with

U7

the

RESETA

processor

turned

the

processor

no

power

power

signal

thru

11,

and

off

(vent

U3

applied).

driver.

also.
J1-17.

U6 output

pin

D5

The

A315

(WR3)

chip,

The

U12.

Drivers
coils.
direction
the

motor
When

across

current

to

reached,

O5

acts

Q6

one

that

This

winding

is

sent

enable

U9.

Flow

Resistor

U11

With

of

motor

is

supplied

the

the

sensing

the

voltage

U13

through

as a noise

circuit

phase

the

winding

is

to

is

to

U6,

pin

the

processor

signals

this
the

phase).

power

motor

functions

of

increase

energized.

from

pack

and

U12

arrangement,

coil

(both

The

from

is

first

winding,

resistor

across

turns

R27,

the

the

and

filter,

motor

current

the

1.

This

enables

to

write

U9

and

U6

go

RP1

act

as

pull

form a switching

current can

plus

and

minus

power

Vm

applied

R29.

the

voltage

R26,

and

identically

is

that

holding

for

the

through

as

the

1.13

maintaining

C27

on,

is

the

to

the

current

Ui13

compares

ohm

down

slows
(the

RED - BLUE

bias

current

on

becomes

torque

U6.

This

data

to

the

peripheral

to

level

translator

ups

on

these

“H”

bridge

be

passed

voltages

WHITE - YELLOW

Q5

regulator

motor

R29.

by

down

of

about

rises,

reducing

the

the

it

is

the

When 1 amp

current

the

response

phase).

is

removed

approximately

motor

line,

and

ICs

lines.

for

can

10V

1.13

the

when

Power

the

through

be

at

rear

is

sensed

volt

current

set

at 1 amp.

through

only

the

WRite

output

U11

and

motor

phase

of

When

phase

in

either

applied

of

of

casting.

applied

across

reference

is

voltage

C26

U13.

only

R31

1.5

amps.

1

to

the

of

The

so

The

FLOW

vaive

at

J7-7

HOME

and

line

goes

comes

to

U3

5-17

from

pin

2.

the

optical

sensor

on

the

flow

OVERVIEW

OF

THE

8400ST

VENTILATOR

SYSTEM

OPERATION

POWER

Please

0

EXHALATION

VALVE

CPU B (U33

Board
hex

voltage

relaxed
open.

The

feedback
will
driver
valve
to

signal.

The

with

valve
open

refer

DRIVE

thru

connector

to

the

D/A
between O and
condition

voltage

at

vary

around

U18

pin 1 which

moves

U14

pin 2 which

Velocity

the

D/A

to

move

positions.

to

at
U16

BOARD

the

schematic

CIRCUIT:

pins

1-8) port

U15.

of

the

TP1

is

Pin

1/2

VEXH

the

Magnet

is a high

Coil

feedback

voltage

smoothly

50020

P1

J16.

CPU B sends a digital

This

causes a dc

5VDC

Exhalation

then

applied

9.

This

or

drives

causes

gain

is

coming

and

(Con't.)

50022

controls

to

is

approx.

the

DC

in.
properly from

for

the

voltage

be

felt

Valve.

and

then

changed

6v.

linear

an

electrical

amplifier

coupled

This

closed

references.

at

mixed

exhalation

D/A

U15

signal

into

TP1.

2.5VDC

Ov

is

closed

with

the

into a signal

This

is

ted

valve.

charge

as

feedback

into

U16

loop

system

the

fully

on

the

from

U14

causing

is

and

velocity

at

into

the

As

to

be

to

the

pin 5 to

enables

closed

to

Power

00

an

idle

5v

is

coil

TP5

power
the

sent

drive

be

mixed

fully

to

ff

a

or

fully

that

back

the

Fauit
code

codes
list.

The
pushpull
the

The | BOOST
turn
stay

exhalation

‘

The
31-5,
optical

The

10-28,

210-218,

Power

other

it

closed

exhalation

and

Exhalation

Driver

arrangement

side

below

signal

on

and

ensure

during

cycle.

the

exhalation

sensor

110-112,

U18

is

set

(Pins 5 and

6v.

from

that

the

inhalation

valve

on

switch

home

the

exhalation

Home

line

OUBLESHOOTIN

119

up

as a Differential

8).

CPU C U3

the

exhalatiori

cycle.

passes

EXH

valve

is

read

in

are

valve

One

side

will

pin 3 is

through

HOME"

at

at

US

positioning

valve

and

it

the

line

J6-3

pin

fed

has

is

and

1

problems,

Amplifier.

be

above

to

the

base

enough

Released

board

comes

goes

current

during

from

from

to

U9.

please

Ina

6v

of

J6-5

the

and

Q7

to

to

to

see

5-18

The

plug

acts

Starting

the

pulses

the

The

code

only

way

to

in

an

Eprom

like a binary

with

A30,

line

before

at

the

clock

number

motor

236).

ot

pulses

processor

TROUBLESHOOTING

troubleshoot

filled

with

counter.

and

continuing

it.

Note

that

frequency

than

checks

the

address

NOP

instructions

Signals

to

AO - A7

due

the

line

internal

can

be

A315,

are

not

to

the

ALE3

before

RAM

bus

and

into

the

observed

each

address

solid

hi

decoding.

it.

(fault

codes

(Con't.)

make

sense

U5

socket.

at

the

U5

line

levels,

but

Each

220-223),

Eprom

is

are a burst

out

it

with a scope

Then

address

half

the

burst

will

and

the

processor

lines.

frequency

of

HI

have

twice

its

Eprom

is

of

going

(fault

to

TRANSDUCER

O

REFERENCE:

O

VPROX

Please

Three

board
Capacitors

AND

VMACH

PT1
and

voltage

3
purposes:

If

not

fault

refer

terminal

at

and

produce

is

of

PT1

0

60

140

the

zero

be

able

code 9 is

to

the

schematic

regulator

J4 - 9,

TRANSDUCERS:

PT2

1.0

and

cmHO

10,

C5

and

pressure

an

Volts,

PT2

cm

H,O

cm

H,O

and

gain

to

be

generated

11

C4

output

and

the

are

calibrated.

BOARD

9682E

U3

provides

derived

are the

transducers
of

at 5

output

not

from

filters.

1.0

Volt

PSI,

voltages

=

1.00 + 0.05

=

1.85

=

2,98 + 0.10

in

spec.,

If

the

on

the

main

9680

for

references.

the

8V

reference

the

Va

supply

are

powered

per

PSI.

At 0 PSI,

the

output

are

voltage

as

follows

Volts

Volts

Volts

then

the

transducer

transducers

board.

(J4 - 14,

by

the

the

is 6 Volts.

for

don’t

match

to

the

main

15,

16).

8V reference

output

At

pin

calibration

board

will

closely,

a

The

output

0

cm

H,O

2.424

The

0

2.424

output

cm

H,O

Volts

Volts

of

PT1

is

pressure

at

60

cm

of

PT2

is

pressure

at

60

cm

offset

and

amplified

H,O

offset

and

amplified

H,0

5-19

by

the

as

measured

by

the

as

measured

Ri

adjustment

by

U1,

at

R3

adjustment

by

U2,

at

with

gain

J4-6.

with

gain

J4-4.

to

1.250

adjusted

to

1.250

adjusted

Volts

by

R2

Volts

by

Ré

out

to

out

to

at

at

OVERVIEW

OF

THE

8400ST

VENTILATOR

SYSTEM

OPERATION

TRANSDUCER

O

VPRS

O

LED'S:

TRANSDUCER:

Please

PT3
per

8V

half

voltage

(if

Please

Seven
microprocessor

the
Pins
the

resistors

of

refer

is

an

PSI

or

supply.

of

Ut

out

the

8V

refer

segment

inputs

J2-35

lower

about

to

the

unamplified

40

mV

R9

is

and

U2

will

be

supply

to

row

for

62

is

DISPLAY

to

the

display

U33

the

segment

to

J2-49

of

displays.

the

segment

Hz.

BOARD

schematic

strain

at

15

PSI.

an

offset

form a differential

1.25

V _

exactly

BOARD

schematic

LED’s

on

the

odd

are

drivers.

9680

9682E

gage

These

adjustment,

0.3

8.000

50002

are

main

driver

the

R7

through

for

transducer

voltages

amplifier

at

zero

Volts).

50000

for

multiplexed

board.

U1

for

inputs

The

(Con't.)

references.

with

are

adjusted

for

PSI

and

references.

Pins

J2-19

the

upper

to

the

segment

R22

are

displays

an

output

proportional

at

20

PSI.

PT3.

4.38 V _

by

current

are

At

the

Display

to

J2-33

row

of

driver

scanned

J4-2,

.06

displays.

limiting

of

2.6

mV

to

the

The

other

the

at

20

PSI

odd

are

U2

for

at a rate

U3,

U4,

and

information.

The

discrete
Time,
independently
powered

powered
powered

O

POT'S

AND

SWITCHES:

Pots
connected
the

VPOT

an

main

due

Breath

R50

main

load

open

board.

to

pull

U5

are

U6

thru

LED's

Rate,

from
directly
directly
from

through

in

board.

pot.

from
from

the

parallel

R39

to

650

The

Open

up

resistors

octal

U11

for

Patient
Minute
J2-14

the
the

5V

supply.

R62

are

and

and
__5.
wipers

wipers

on

5-20

decoders

are

the

transistor

Effort,

Volume,

to

J2-30

DC

supply,

main

board.

the

front

are

powered

R40

are

This

is

are

connected

are

detected

the

main

to

decode

Sigh,

and

Silence

even.

and

The

panel

from

an

adjustment

so that

to

by an

board.

the

digit

array

Low

The

the

controls,

the

J3-16

drivers

Gas,

are

Battery

Vent

Green

the

Power

VPOT

to

main

to

overrange

driver

Apnea,

driven

LED

Inop

and

the

supply

adjust

board

40

and

for

the

digits.

Insp.
using
is

LED

LED

ends

the

can

go

condition

U12

is

is

are

from

total

detect

to

the

」

O

POT'S

AND

Please

SWITCHES

Switches

Select

through

Qi

refer

Inspiration

Hexfet

DISPLAY

to

the

(Con't.):

SW1 - SW7,

J3-1

to

J3-14.

is

used

BOARD

schematic

Silence,

Hold

and

to

turn

the

50000

50002

Reset,

Mode

are

displays

(Con't.)

for

references.

Sigh,

connected

off

during a loss

Manual

to

Breath,

the

main

of

power

Mode

board

inop.

5-21

SECTION

6

Warnings,

Cautions

and

Notes

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION
WARNINGS,

The

8400ST
operated
personnel
a

licensed
application,
and

understood.

by

NOTES

trained,

under

physician.

the

WARNING:

CONDITIONS

ADVERSELY

OR

PATIENT.

WARNINGS:

6

CAUTIONS,

Volume

should

MAY

AFFECT

Ventilator

qualified

the

direct

WARNINGS,

be

EXIST

supervision

Before

read

clinical

and

THAT

THE

NOTES

should

medical

CAUTIONS,

OPERATOR

be

of

COULD

CAUTION:
damage

Conditions

the

ventilator

equipment.

NOTE: A specific

assist

equipment.

the

operator

may

exist

or

other

point

is

made

in

understanding

that

pieces

to

the

could

of

E

DO

NOT

USE
PRESENCE
ICS

AS A POSSIBLE

ARD
m

EXISTS.

THE
SHOULD
FORMANCE
PLETED

Ш A 8400ST
WHICH

NOT

MEET

OF

8400ST

NOT

BE

CHECK”

(SECTION

VOLUME

IS

NOT

MANUFACTURER'S
SPECIFICATIONS
USED
HAVE

BIRD
UCTS

@
VOLUME

DRY
m

NOT
COVER.
BIRD

UNTIL

BEEN

ALL

MADE.

DISTRIBUTOR

CORPORATION

ALWAYS

OPERATE

VENTILATOR

MEDICAL

ELECTRICAL

REMOVE

REFER

TRAINED

THE

VENTILATOR

FLAMMABLE

EXPLOSION

VOLUME

USED

VENTILATOR

UNTIL A “PER-

HAS

BEEN

14).
VENTILATOR

FUNCTIONING

SHOULD

NECESSARY

CONTACT
OR

BIRD

FOR

THE

WITH

GRADE

SHOCK

GASES.

HAZARD;

VENTILATOR

ALL

SERVICING

TECHNICIAN,

IN

THE

ANESTHET-

HAZ-

COM-

OR

DOES

DESIGN

NOT

BE
REPAIRS
YOUR

PROD-

REPAIR.

8400ST

CLEAN/

DO

TOA

YOUR

BIRD

UCTS

M

LATOR
IT IS

TRAINED

DANCE
PROMPT

DISTRIBUTOR

CORPORATION.

WHEN

THE

IS

CONNECTED

RECOMMENDED

CLINICIAN

AT

ALL

ACTION

OCCUR.
m

FOR

CONTINUED
REPLACE
POWER

ONE

THE

ENTRY

OF

IDENTICAL

ING.

M A FLASHING
PEAK
INDICATES

NOT

ALWAYS

PEAK

OTHER

PEAK

ERLY

THE

PRESSURE

THE

BEEN

PROPERLY

ENSURE

PRESSURE

CRITICAL

PRESSURE

ESTABLISHED

PATIENT

OR

BIRD

8400ST

VOLUME

TO A PATIENT,

THAT

BE

IN

ATTEN-

TIMES,

TO

TAKE

SHOULD

PROTECTION,

FUSE

"OFF"

OR

MODULE

TYPE

IN

ALARM

ALARM

FUSES

ONLY

AND

THE

DISPLAY

LIMIT

ESTABLISHED.

THAT

ALARM

THE

LIMIT

ALARMS

ETC.)

ARE

BEFORE

UNATTENDED.

PROD-

VENTI-

A

AN

ALARM

RAT-

LOW

HAS

LOW

AND

(i.e.

HIGH

PROP-

LEAVING

IN

THE

WITH

6-1

WARNINGS,

CAUTIONS,

WARNINGS:

m

BEFORE
“PRESSURE
CUIT

INCLUDING

MODULE

TO

MISASSEMBLY

PONENTS.

FORMANCE

Ш

IT

IS

10172,
CUIT
VOLUME

HAS

USE

m
AND
AND

DAILY.

KIT

BEEN
WITH

THE

ALERT
VISUAL,

PATIENT

TEST”

FOR

(SEE

CHECK)

RECOMMENDED

THE

PATIENT

BE

USED

VENTILATOR.

VERIFIED

THE

OPERATION

FUNCTION,

NOTES

(Continued)

APPLICATION,

THE

PATIENT

HUMIDIFIER

POSSIBLE

OR

AIR

DAMAGED

SECTION

THAT

BREATHING

WITH

840057.

SHOULD

THE

THIS

ACCEPTABLE

OF

EACH

BOTH

BE

CIR-

HEATER

LEAK

COM-

14-

PER-

P/N

CIR-

8400ST

CIRCUIT

ALARM

AUDIBLE

VERIFIED

DUE

FOR

AT

THE

LOWER

THE

VENTILATOR.

Ш

BIRD
DOES
BREATHING

INSIDE
(1.91cm),

M

THE

PHRAGM

FOR

TION

SARY.

TIENT

mW

MANUAL
NON-FUNCTIONAL
TOR

PRODUCTS

NOT

RECOMMEND

CIRCUIT

DIAMETER

LARGE

EXHALATION

SHOULD

EXCESSIVE

AND

REPLACED

OTHERWISE

VENTILATION

BREATH

INOPERATIVE

FLOW

BORE

WEAR

SETTINGS

CORPORATION

TUBING

OF

LESS

TUBING

VALVE

BE

CHECKED

OR

WHEN

IMPROPER

MAY

CAPABILITY

DURING

CONDITION.

THE

USE

WITH

THAN

ONLY.

DIA-

PERFORA-

NECES-

OCCUR.

VENTILA-

OF

OF

AN

3/4”

DAILY

PA-

IS

m

CONSULT
FRACTIONAL
INSPIRED

THE

INSPIRED
OXYGEN
RIAL

MR

MONITOR

TIONS

ANALYZER
ALARMS

DESIRED

E

WHEN

DER

VOLUME

NECT
ASSEMBLY
IARY
BLENDER
TION
OXYGEN

OXYGEN

ANALYZER

BLOOD

WITH

TO

FIO,

USING

IN

CONJUNCTION

VENTILATOR,

THE

OUTLET

WILL

CONCENTRATION

A

PHYSICIAN

CONCENTRATION

(FIO,).

GAS

WITH A CALIBRATED

AND

GAS

DETERMINATIONS.

OXYGEN

AN

ACCURATE

WITH

BE

VENTILATOR/BLENDER

(P/N

AUXILIARY
ENSURE

HIGH

ASSURED

IS

BEING

THE

09520)

OF

THE

3800

ACCURACY

ON

PROPER

MONITOR

OBTAIN

CONCENTRA-

OXYGEN

AND

LOW

THAT

DELIVERED.

MICROBLEN-

WITH

ALWAYS

BLENDER.
OUTLET

TO

THE

DELIVERY

THE

OF

SE-

(FIO,)

THE

8400ST

CON-

HOSE

AUXIL-

THE

CONNEC-

OF

m

UNDER
MINUTE
PRIMARY
BE

USED

BILITY.

TIONS
TIONS
OF 6 LITERS

THIS

Ш

A

ALARM

PORT.

WHEN
LATOR
IT

IS

RECOMMENDED

PEEP/CPAP

LEVEL,
BELOW
(EVEN
PROPER

VISUAL
LEM

OCCUR

SYSTEM.

CASES

VENTILATION

BLENDER

TO

HOWEVER,

WILL

AT

MINUTE

THE

IS

CONNECTED

NOT

THE

WHEN

ESTABLISHMENT

PROVIDES

INDICATOR

OF

EXTREMELY

DEMANDS,

OUTLET

EXTEND

DRIFT

OR

LESS

8400ST

ALARM

TO

SENSITIVITY

PEEP/CPAP = 0cmHLO).

IN

THE

THE

O,

CONCENTRA-

OUT

OF

VOLUME

WHEN

VOLUME

TO A PATIENT,

THAT

ALWAYS

EXCEED

ANOTHER

SHOULD A PROB-

FLOW

PORT

UNIT'S

SPECIFICA-

DEMANDS

USING

VENTI.

THE

LOW

BE

SET

3emH,O,

SETTING

OF

THIS

AUDIBLE/

DELIVERY

HIGH

THE

CAN

CAPA-

TO

WARNINGS:

M

ALL

ELECTROMECHANICAL
TEMS
OR
TERNAL

INSIDIOUS,

MANCE
TOR
OUS

FAILURE

MANCE

CAUTIONS:

M
Ventilator.
compatible

MH

ammonia

greater

age

lays.

M

ment,

the

M

are

Do
oxide
liquid

EH

(cloth,
transducer.
the
volume

NOTES:

ARE

FAILURE

CAUSES.

DEGRADATION

WILL

DETECT

CONDITIONS

OR

DEGRADATION.

Do

not

sterilize

The

with

Sterilizing

chloride,

than

2%

to

plastic

(See

section 7 -

As

with

any

care

should

equipment

Bird

Products

compatible

not

wash,

sterilize,

sterilizing

Do

not

insert

brush,

flow

element

readings.

(Continued)

SUBJECT

FROM

UNDETECTED

SIGNIFICANT

internal

sterilization

which

chloride

gluteraldehyde

components

other

in

the
Corporation

with

rinse,

or

immerse

agents.

any

pipe

Such

and

TO

INTERNAL

TO

GUARD

AND

WHICH

the

8400ST

components

includes

Cleaning

piece

be

steam

soak,

cleaner,

action

phenols,

compounds

or

exercised

hospital

autoclaving

pasteurize,

the

cleaning

can

result

SYS-

MALFUNCTION

OR

EX-

AGAINST

PERFOR-

THE

VENTILA-

ALARM

MAY

VARI-

CAUSE

PERFOR-

SOME

techniques.

control

and

of

medical

environment.

Bacteria

CONDI-

Volume

are

dimethyl

and

may

cause

panel

Sterilization.

eguip-

when

moving

Filters

“ONLY”.

ethylene

bacteria

instruments

etc)

into

seriously

in

inaccurate

filters

the

damage

not

dam-

over-

flow

TIONS (SUCH

GAS

TEM

LATOR

WITH

INOP

CAL

STAFF

RESPOND
PROCEDURE
GENCY

E

Do

gun

under

M

Do

openings

E

“Do

into

exhalation

M

“Do

into

flow

E

*Do

exhalation

E

“Do

flow

in

transducer

*Repeated

cause

nents
operation,
cleaning

AS

EXTREME
PRESSURE
FAILURE)

VARIATION

WILL

INTO A VENT

AUDIO/VISUAL

SITUATIONS

SHOULD

WITH A WELL-REHEARSED

TO

PROVIDE

VENTILATION.

not

clean

any

not

spray

or

not

not

transducer

not

valve

not

build-up

of

the

if

procedure.

or

dry

circumstance.

cleaning

on

front

spray

spray

allow

allow

use

cleaning

valve

cleaning

cleaning

shaft

cleaning

of

the

of

residue

ventilator,

care

is

POWER

FORCE

INOP

THE

SHUTDOWN

ALARMS.

WILL

OCCUR!

BE

PREPARED

EMER-

with

high

solution

panel

receptacle.

of

the

solution

assembly.

solution

solution

or

poppet.

solution

cleaning

possibly

not

exercised

agent

on

critical

affecting

OR

OR

SYS-

VENTI-

VENT

CLINI-

TO

pressure

air

|

into

louver

ventilator.

directly

directly

to

pool

on

to

pool

in

can

compo-

in

the

E

Federal

or

on

the

law

order

restricts

of a physician.

this

device

The

to

sale

Volume

by

Ventilator
intended
under

6-3

is a restricted

for

use

by

the

direction

medical

qualified

of a qualified

device

personnel

physician.

WARNINGS,

CAUTIONS,

NOTES

NOTES:

E

Tidal

has

attempted

the

peak

been

limited

established

notifies

flashing

tidal
ume

M

Peak

has

atternpted

for

the
ventilator
is

acceptable

the

clinician

ing

the

(flashing

M

Back

tor

has

high
response,
Breath

display.

Back
Rate
has
Breath

flashing

Rate
M

Excessive

a

patient

CPAP

flow

PEEP

of

the

resulting

system
unit

after

tory
breaths.
supported

(Continued)

Volume

flow

selected.

the

tidal

breath

the

clinician

the

tidal

volume

delivered.

for

Up

control

increased

can

(flashing

Flow

tidal

volume

has

of

peak

flow

display)

Up

Breath

attempted

the

tidal

the

Rate

setting

B}

The

Breath

setting.

Rate

control

display.

be

set

circuit

mode,

for a brief

level.

oxygen

in a Ventilator

gas

pressure.

will

automatically

2.5

liters

phase.

This

However,

time

indicator

to

set a tidal

setting

In

response,

volume

rate

volume

Indicator

to

set a peak

selected.

limited

for

that

this

incompatible
indicator.
is

Rate

to

volume

ventilator

operator

Rate

the

setting

However,

to

0.

Volume/Fiow

disconnect

the

system

period

This

could

blender

Flashing - The

and

breath

proportionately
and

of

this

indicator.

display)

Flashing - The

the

peak

tidal

volume,

the

actual

Flashing - A)

set a breath

and

has

to

the

has

below

In

response,

to

setting

will

in

an

exceed

and/or

Inoperative due

To

reduce

has

been

delivered

restriction

under

limited

conditions

breath,

volume

the

peak

incompatible

flow

Limited

flow

limited

number

the

the

as

the

Limit - In

while

effort

too

large

rate

that

ventilator

to

flow,

then

setting

The

limited

is

the

actual

operator

that

is

too

In

response,

flow

to a value

then

notifies

setting

flow

attempted

primary

current

indicated

Back

in

provide

to

the

gas

by

peak

delivered.

The

rate that

settings.

the

Back

in

the

to

the

ventilator

primary

Up

the

the

SIMV/

maximum

maintain

flow

supply

flashing

Breath

in

Breath

event

capacity

to

avoid

this

situation,

the

flow

to

40

in

the

inspira-

will

not

apply

of a pressure

the

unit

will

operator

for

have

has

the

by

vol-

high

the

that

flash-

flow

opera-

is

too

In

Up

set

the

the

of

the

system

low

the

Ipm

to

Sigh

auto-

6-4

matically
has

HI

When
“LED”
indication

HE

When
limit
support

E

Power
power
test
the

1.

Power

alarm

2.

Front

unison

3.

Microprocessors

4.

Flow

position

5.

Second

6.

Front

7.

Ventilator

@
important
deliver
breaths

important
displayed

to

within

E

recommended

nected

from

consume

8400ST

reduce

been

delivered.

“I”

Time

will

flash

every 3 seconds,

of

the

the

pressure

of 3 seconds

setting

to

is

automatically

following

display

up

self

the

ventilator

occurs:

“LED”

is

briefly

panel

control

panel

Selected

volume

within

When

from

the

sounded

LED's

valve

and

exhalation

audible

displays

begins

vs

Displayed

to

note

controlled

410%

to

note

in

the

+5%

of

the

ventilator

that

the

3800

MicroBlender

supply

is

in

the

the

inverse

turns

monitors

the

unit,

flow

to

20

Ipm

exceeds

is

exceeded,

test - subsequent

conducted.

verify

alarm

to

that

that

the

gas.
transport

“E”

Time,

giving

state,

support

will

(On/Off

“ON”

segmentally

inspiratory

the

flash.

switch) a 5

During

and

an

display

communication

returns

operate

the

of

the

exhaled

so that

This

to

“Home”

valve

opens

briefly

illuminate

the

is

not

supply

sounds

Tidal

Volume - It
8400ST
or

set

measured

section,

is

configuration.

will

volume

value.

will

volume.

in

use,

sources

the

10-12

does

not

important

after

2.5

liters

the

[E

Ratio

visual

time

pressure

to

initiating

second

the

test

audible

in

is

accurately

assisted

It

is

also

volume,

be

it

is

continue

as

accurate

be

discon-

ipm

bleed

if

the

to

NOTES:

E

This

above

equals

E

Pressure

preset 3 second

Description

EH

When
becomes
Purge

sure

seen
airway
onds

the

safety

(Continued)

control

PEEP.

PEEP + Pressure

Flow

to

rise

on

the

pressure.

from

The

Support

of

Alarms

the

airway

blocked,

causes

to

100

manometer

the

“CIRC”

solenoid

sets

the

pressure

total

patient

Support.

in

the

inspiratory

in

Section

pressure

the

0.05

the

manometer

cmH,O.

is

Approximately

alarm

opens

level

pressure

8400ST

time

has

limit.

(See

3.).

sensing

to

0.1

The

pressure

not

patient

notification,

and

pressure

Ipm

10

port

pres-

sec-

a

is

relieved.

back

resets

blockage

repeat

implemented.

M

Back

(ALT

E

Jí
neous)
Interval

zero, the
Apnea

Once

to

baseline

and

attempts

is

not

until

corrective

panel

PWR

an

Source)

inspiration

is

not

setting

apnea

Back

Up

the

pressure

+3

cmH,O,

to

resolved,

action

switch

detected

the

must

position.

(mechanical

breath
alarm
ventilation

will

is

the

cycle

within

again.

the

be

rate

be

will

process

has

relieved

ventilator

Ifthe

will

been

in

the

DC

or

sponta-

the

Apnea

will

display

initiated

begin.

and

SECTION

/

Cleaning

and

Sterilization

8400ST / 8400STi

Volume

Ventilator

Service

Manua

SECTION
CLEANING

mw

VENTILATOR

The

exterior

tor

may
bactericidal
should
agent

(primarily
the
the

№

m

m

m

Ш

louver

M

into

to

potential
inside

DO

ventilator.

DO

sterilizing

DO

DO
agents
receptacle

DO

openings

*DO

exhalation

of

be

wiped

or

be

exercised

pool

the

of

the

NOT

NOT

NOT

NOT

to

NOT

spray

NOT

7

AND

the

germicidal

in
front

for

use

immerse

agents.

sterilize

allow

pool

on

spray

STERILIZATION

8400ST

clean

not

areas

panel),

the

liquid

ventilator.

harsh

ventilator.

bactericidal

in

flow

front

cleaning

on

ventilator.

cleaning

valve

assembly.

Volume

with

an

appropriate

agent.

to

allow

on

the

so as

to

abrasives

ventilator

transducer

of

ventilator.

Care

the

ventilator

to

penetrate

on

in

or

germicidal

solution

solution

Ventila-

liquid

minimize

to

liquid

into

directly

The

flow

transducer

liquid

or
m

m

m

The
the
03210C)

submerged

or
The

with

NOTE:
ing
Ventilator

ing

agents,

ethylene

DO

NOT
(cloth,
flow

DO

nozzle

brush,

sensor.

NOT

to

BREATHING

(See

page

ventilator

humidifier

and

steam

autoclaved

main

flow

steam

For

and

sterilization

System,

literature:

can

heat

pasteurization,

oxide

gas.

insert

use a high

dry the

any

pipe

sensor.

cleaner,

CIRCUIT

4-3

for

diagram)

breathing
module

autoclavable

in

liguid

autoclave

additional

agents,

to

bacteria

ONLY.

of

please

be

sterilized

cleaning

pressure

circuit,

(P/N

sterilize.

filter

information

the

8400ST

refer

instrument

etc.)

gas

not

03210

filters,

may

ethylene

is

compatible

to

by

autoclave

into

the

including

or

be

oxide

on

clean-

Volume

the

follow-

α

*DO

NOT

into

flow

transducer

m

*DO

NOT

on

exhalation

m

*DO

NOT

in

flow

transducer.

*Repeated
cause

nents
operation,
cleaning

gm

The

flushing

agitating

build-up

of

the

procedure.

FLOW

flow

transducer

with a genile

it

spray

allow

allow

use

ventilator,

if

care

cleaning

valve

cleaning

of

the

of

residue

is

cleaning

receptacle.

shaft

cleaning

possibly

not

exercised

TRANSDUCER

can

stream

in a solution

of

solution

solution

or

poppet.

solution

agent

on

critical

be

cleaned

of

soap

directly

to

pool

to

pool

cari

compo-

affecting

in

the

by

water

and

or

water.

L1001-
L1008-

5

Heated

3800

ΕΧΗΑΙ
ASSEMBLY

TRANSDUCER

Care

should
exhalation
transducer

ume

Ventilator.

tions

critical

1.

Apply

and
tive

2.Visually

external)
tion

valve

outlined

components.

topical

wipe

solution

has

Humidifier

MicroBlender

ΑΤΙΟΝ

VALVE

AND

be

exercised

assembly

receptacle

Please

below,

exposed

inspect

to

ensure

been

when

solution

surfaces.

(ie

alcohol)

all

removed.

Instruction

Instruction

FLOW

RECEPTACLE

in

cleaning

and

the

on

the

8400ST

follow

surfaces

that

the

cleaning

to a

clean

is

recommended.

ali

cleaning

instruc-

An

(internal

Manual

Manual

the

flow

Vol-

these

soft

cloth

evapora-

and

solu-

SECTION

8

Maintenance

Service

Policy

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

8

MAINTENANCE

WARNING:

A

8400

VOLUME

WHICH
DOES
MANUFACTURER’S

SPECIFICATIONS
USED
REPAIRS

IS

NOT

NOT

UNTIL

HAVE

MEET

ALL

AND

VENTILATOR

FUNCTIONING

THE

SHOULD
NECESSARY

BEEN

SERVICE

DESIGN

MADE.

NOT

OR

BE

Bird

Products

been

designed

amount
amount
the
variables

of

utilization

of

maintenance.

desired

must

e

Frequency

e

Cleanliness

source.

e

Use

trap/filter.

Corporation

to

provide

frequency

be

considered.

and length

of

compressed

of an

air

inlet

equipment

the

maximum

with

minimum

When

of

maintenance

determining

of

use.

water

has

many

air

CAUTION:

Ventilator

calibrated

trained

M

Every

Every

Every

service

$400

1000

3000

5000

RECOMMENDED

The

8400ST

should

by a Bird

be

technician.

Machine

Machine

Machine

Volume

serviced

Products

Hours

Hours

Hours

Corporation

and

/or

MAINTENANCE

Ventilator

surface

appears

coalescing

CAUTION:

working

“Ventilator

Machine,

-Verify
measurement
than

specified,

Products

Bacteria

replaced

to

flow

limit

(see

The

8400ST
pieces
require routine
of

recommended

Inlet

of

the

to

be

filter

pressure

Inoperative”

Airway,

transducer

Corporation

Filter - The

once

through

page

of

time.

Filter-

inlet

filter

dirty

or

replacement

Dirty

inlet

and

calibration

(see

page

contact

each

filter

8-3).

Volume

Health

Refer

Care

maintenance

to

the

maintenance

SCHEDULE

remove

for

foreign

discolored,

element

filter

can

subseqently

condition.

and

Flow

Transducer

to

8-2).

If

your

Bird

for

repair.

main

flow

year

or

more

exceeds

the

Ventilator,

equipment

over a period

following

intervals.

and

examine

material.

replace with

(P/N

reduce

result

ensure

accuracy

distributor

filter

often

maximum

the

in

accuracy

varies

should

if

the

like

other

will

for

the

internal

If

filter

new

06146).

machine’s

a

calibration

of

more

or

Bird

be

resistance

allowable

Main

Flow

8-1

Bacteria

Filter: 2 cm

H20 @ 60

Ipm.

MAINTENANCE

Every

15,000

Machine

AND

Hours

SERVICE

A

complete

minimum

your

Bird

|

service.

machine

of

once

distributor

maintenance

every15,000

or

Bird

will

machine

Products

Corporation

be

required

hours.

at

a

Contact

for

HE

TESTING
INSTRUCTIONS
TRANSDUCERS

NOTE:

conducted
continuously

minutes

stabilize

1.

Depress

turn on

valve

not

After

appear

window.

segment

for

monitor

Backup

The

after

with

temperature

and

the

ventilator.

“Homes”

move

thereafter.

valve

“Homing”, a series

on

the

Release

LED

Breath

running

the

display

SOFTWARE
VERIFICATION:

The

four-digit

Main

PC

Board

displayed

display

2.

Activate

is

number

representing

revision

in

the

is

number

the

2. A four-digit
the

level

window.

3.

Activate

is

number

the

3. A four-digit

AND

following

the

VERIFICATION

FOR

test

ventilator

for

at

top

cover

ALL

least

in

variations.

hold

the

Select

Verify

within 5 seconds

ventilator’s

the

display

Rate.

monitor

Select

must

window

(BBR).

button.

be

and

REVISION

number,

software

monitor

Select

representing

revision

window,

one

(1).

button.

number

Power

will

Select

PC

appear

button.

Board

in

the

number

must

has

been

30

place

button

that

the

and does

of

off

the

BBR

monitor

BBR

be

to

and

flow

dots

will

display

All

7

except

the

level,

is

BBR

display

software

display

8-2

representing
software
monitor

4.

Activate

is

number

representing
revision

the

revision

window.

the

4. A four-digit

the

level

will

window.

5.

Activate

is

number

Off

set

50

cmH20

6.

Activate

is

number

appear

Breathing

should

7.

Activate

is

number
appear
Breathing

should

8.

Activate

is

the

appear
pressure

9.

Activate

and

verify

and

associated

for

Vent

the

5.

This

reading,

in

the

the

6.

The

in

the

monitor

circuit,

read

0.0

the

7.

The

in

the

monitor

circuit,

read 0.00 + 2.00

the

number

in

8.

the

monitor

should

the

that

Inop

and

Display

level

Select

PAL

appear

Select

is

and

monitor

Select

Airway

the

+1.00/-0.50

Select

Machine

the

Select

The

PC

will

button.

number

PC

Board

in

button.

the

Flow

it

should

window.

button.

Pressure

window.

airway

button.

pressure

window.

machine

cmH20.

button.

System

window.

Board

appear

BBR

software

the

monitor

BBR

Transducer
read

BBR

Without

pressure

cmH20.

BBR

Without

pressure

BBR

pressure

The

read 20.0 + 0.5PSI.

Select
all
decimals

button

seven

segment
illuminate

Battery.

once

LED’s

more

in

the

display

display

103

+

display

will

the

display

will

the

display

will

except

MAINTENANCE

10.

Activate

and

the

normally.

NOTE:
recalibrated,
through

the

ventilator

If

the

refer

6.0.

AND

Select

transducers

button

should

to

Section

function

need

SERVICE

once

more

to

be

14

steps

3.0

2000

ml’s,

Flow

to

60
observe
Duplicate
circuit.

peak

test

Should

by 2 cmH20

Breath

Ipm.

Turn

reading

with

the

or

more,

Rate

at

12

ventilator

on

manometer.

filter

removed

values

recorded

then

bpm

and

“ON”

from

differ

replace

filter.

Peak

and

NOTE:

ventilator

resistance

M

test - Attach
circuit
expiratory
connect
of

flow

to

Ensure

OFF

test.

Main

flow

inspiratory limb

directly

limb

bacteria

the

patient

“Wye.”

direction.

“Assist/Control”,

manometer

prior

to

bacteria

bacteria

to

of

filter

filter

ventilator

breathing

onto

Observe

Adjust

mode

set

Tidal

reads

zero

with

filter

resistance

of

breathing

outlet.

expiratory

Remove

circuit,

control

Volume

the

then

proper

knob

side

at

NOTE:

Pressure

turned
influence

Bird
available
replacement
calibration
technical
designated
as

Ventilator

Alarm

“OFF”

on

the

Products

upon

parts,

instructions

personnel

by

repairable.

will

go

into a Low

condition,

but

this

test.

Corporation

request,

unless

will

have

will

circuit

descriptions

to

assist

to

repair

Bird

Products

Peak

alarm

no

is

make

diagrams,

and

qualified

units

as

Corporation

SECTION

9

8400ST

Tools

and

Equipment

List

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

8400ST

m

8400ST

1.0

Common

Nutdrivers — (deep
Open
Allen
and
Common
#2

Phillips

Long

Diagonal

Trimpot

Stopwatch

9

TOOLS

15,000

End

Hex

Socket

*/s"

Allen

screwdriver

thin

needle

cutter

adjustor

Tools

Wrenches:

AND

HOUR

wrenches

screwdriver - 8"

EQUIPMENT

OVERHAUL

(Not

available from

socket):

1/2",

7/16",

Driver

nose

Set

[*Ball

(slotted) - 8"

pliers

1/4",

5/16",

he”,

No.

end

long

—

Bird

11/22",

Sha",

99-

85-40

with 7 ”

iong

shank

LIST

RECOMMENDED

Products

5a",

1/2”,

ie”

Ne!

Xcelite

(18

shank

or

cm)

TOOLS

Corporation.)

equivalent:

long

shank]

53/15",

AND

3/0",

EQUIPMENT

*7/ea",

los",

2.0

Special
from

Part

00042
00066
00077

00358
00631
01233

01741

02187
03010R
03234
03389

15127

03884

03414

03800
03913

04124

08929

Bird

Bird

No.

Products

items

required

Corporation

Description
Lubricant

Elbow
inline
s"

Lubricant

22

Connector

opening

22F x 22M x 15F,
BHH
Corona
8400ST

Replacement

Vibre-Tite

6400ST

Connection

7.5

"Wye"

Pressure

Tube

mm

Hi/Low

Alternate

Connector

Male x 15

Heating

Dope

Pressure

Service

*

P/N

*

P/N

*

P/N

Flow

mm

Tapered

Power

4.5

Thread

Assembly

for

the

testing

under

Manometer

mm

mm x ‘/"

Connection, 2 each

Module

Transducer

Kit

8400ST

Locking

Tool
03415,
03416
03426

MicroBlender

Plug - plugs

Source

the

Female, 2 each

tubing,

Kit

consisting

Fixture

Fixture
Safety

Jumper

(DC)

and

calibration

following

required

Test

Compound

Assembly,

Assembly,

Solenoid

BHH

Cable

which

part

numbers:

to

seal

the

Harness

of:

regulator

pressure

Removal/Assembly

temperature

Assembly

bypass
test - flow

sensing

may

water

be

obtained

feed

valve

Tool\

port

in

patient

9-1

8400ST

2.0

3.0

TOOLS

(Continued)

Part

No.

09220
09520

10172

09531

10234
10233

Special

Torque

*7/s"

・Adapter

Torque

+

Digital

0 - 30

-1

or

Standard

*

+

Flow

Endotracheal

Thermometer

Pressure
full

Variable

12 - 16

4

function

Anti-static

Anti-static
Anti-static
Anti-static

Anti-static

R.T.V.

8

Ltr

Slant

equipment,

screwdriver 0 -

Allen

wrench

5/32"

Allen,

voltmeter

PSIG

.2

Rigid

Bottle

Tube 0 -

scale

clear

volume

tube

Precision

PSIG

test

compliance

filled

Transducer - 20

transformer 1 -

VDC

calculator - must

mat

wrist

mat
D.I.P.
bags

silicon,

manometer

AND

EQUIPMENT

Description
Flowmeter 0 -

Blender
Patient
Corrugated

fittings

Flow
Prox/Purge

driver

7e"

hex

to

20 - 100

3/a"

drive

increments

lung:

with

22

10

LPM,

tube 7 mm

50° - 120°F

power

spirometer + 2%

supply 5 amp

to

cover

strap

ground

remover

adhesive

LIST

15

Hose

Circuit

Hose

or

its

equivalent

Transducer

Test

tools

pressure

not

made

100

inch/ounce

square

inch/pounds

female

manometer + .05

20

ml/cmH,O + 5%

pounds

0.1

1.D x 20

(9 - 48°

to + 140

140

worktable

connecting

(for

(10kg)

LPM

increments

volis

have

EPROMS

sealant

accuracy

LPM

30"

smooth

Test

Harness

Housing

available

fine

grade

cm

long

non

C}

with 2 temperature

cmH,O

or 1 -

minimum

square

cable

accuracy + .5 at O cmH,O

260

volts

root/memory

and

IC)

or

equivalent
or

its

equivalent

bore

with

by

Bird

PSIG

copperwool

cuffed

with 2 adapters 7 mm x 15

cutis

accuracy

to

Products

probes

fit

22.0

mm

Corporation:

-

to + 2

O.D,

mm

cmH,O

at

m

KIT,

This

SERVICE

assembly

TOOL

consists

P/N

P/N

of

03414

the

following:

Description

Qty

03415

03416

Fixture

Fixture

Assy,

Assy,

Flow

Regulator

Valve

Bypass

Pressure

Test

Tool,

9-3

Solenoid

Wrench

8400ST

TOOLS

AND

EQUIPMENT

03913

LIST

Test

10233

Hose

Assembly

10234

Slant

Tube

Manometer

P/N

10233

P/N

10234

Proximal/Purge

Flow

Transducer

Test

Test

Housing

Harness

P/N

03389

Pressure

Transducer

Test

Harness

SECTION

10

Maintenance

Kits

8400ST / 8400STi

Volume

Ventilator

Service

Manual

SECTION

10

MAINTENANCE

и

P/N

00114

00138

00274
03288
03372

03373
03374
03375
03516

03901
04876

05038

06146

06194
06195

07803

07849

08880

08934

08963

09603

09632

8400ST

Description

O-Ring,

O-Ring,

O-Ring,
O-Ring,
O-Ring,

O-Ring,
O-Ring,
O-Ring,
Insulator

Tubing,

Plug

Cable

Element,

O-Ring,
Bowl,

Cable

O-Ring,

Gasket,

Tube

O-Ring,

MAINTENANCE

.117 x .040

.176 x .070

.145 x .070
.551 x .070

.72 x .103

.801 x .070
.364 x .070
.301 x .070

Bridge

1/4”x

Gauge

Wrap

Tie

Filter

P/N

P/N

09762

Tie

Wrap

.313 x .051

Flow

Assy,

.924

Connection

Valve/Manifold

Gasket,

Manifold

KIT

Silicone

Rectifier

6”

1.D.

Reinforced

Adjust

09672

Control

Reg

I.D. x .103

Elbow

Filter

Filter

Exhaust

Safety

P/N

KIT

|

|

15127

INCLUDES:

Qty.||

P/N

41109672

11109712

2

||

09740A

1

3||

09754

11110080
2
2

||

15349A

11115053

11115179

11120005

1

11120097

1120197

11120191

10

11120292

1

7

||

15053

1

50060A

Description

Insulator,

Regulator,

Valve,

Assembly

Safety
Tube

Transducer

Exhalation
Manifold

Kit,
Body

Seal

Pad,

Flow

Assembly

Fuse

Exhalation

Thermal

Diaphragm
Gasket,

Transducer

Gasket,

Transducer

Manifold,

Assembly

PCB

Assembly

Receptacle

TO-3

2-25

PSIG

Control

8400ST

Valve

Assembly

Valve

Flow

Transducer

Overhaul

Interface

.875

OD,

.396

OD,

Flow

Transducer

Manometer

Assembly

Valve

Flow

Flow

(Solenoids)

Flow

Qty.

4

1

1
1

1

1

with

1

2

1

1

1

1

1

10-1

6/97

SECTION

Disassembly

11

8400ST / 8400ST/

Volume

Ventilator

Service

Manual

SECTION
DISASSEMBLY

M

INTRODUCTION

The

Bird

8400ST

been

-

amount

maintenance.

tor

ucts
Service

Before

cian

eration,
explained

A

can

each

designed

of

utilization

should

be

Corporation

Technicians.

servicing

must

be

warnings,

in

numbering

easily

identity

operation.

11

Volume

to

provide

with a minimum

The

8400ST

serviced

trained,

or

familiar

Section 6 of

system

only

calibrating,

with the

cautions

is

utilized

the

steps

Ventilator

the

maximum

Volume

by

Bird

has

of

Ventila-

Prod-

Hospital/Dealer

the

techni-

design,

and

this

manual.

involved

notes

so

op-

as

that

with

one

CAUTIONS:

m

The

work

Discharge
technician’s
before

working

Board
have
severely
PCB

assemblies

Static

m

Always
power
top

cover.

(E.S.D.)

work

removing

on

ventilator.

assemblies

integrated

damaged

bags

after

unplug

source,

area

must

surface

the

(PCB)

Circuits

must

removal.

power

wall

be

Electro

protected.

must

top

cover

All

Printed

in

the

(IC)

and

by

static

electricity.

be

placed

cord

plug,

before

Static

The

be

grounded

and

while

Circuit

8400ST

can

in

anti-

from

electrical

removing

be

All

If

during
cation
not

met,

tions

before

Assembly

and

Operational

Verifi-

Procedure a suggested parameter

refer

to

“Troubleshooting”

proceeding

with the

instruc-

next

step.

is

11-1