Fisher and Paykel IW702, IW703, IW817, IW818, IW820 User manual

5.0

5.1

5.2

5.3

5.4

5.5

6.0

6.1

6.2

6.3

6.4

6.5

6.6

6.7

7.0

7.1

Changes

Add

resistor

Spare

Parts
IW703
[W702
[W817
IW320
[W820

Spare

Parts
[W703
IW702
1W817
1W818
[W820
[W818

[W820

Product
Serial

Number

To

Technical

R47

Lists.

Grey

models

Infant

Warmer

Servo

Controller - Spare

Infant

Radiant

Infant

Care

Infant

Care

Lists.

Infant

Warmer

Servo

Controller - Spare

Infant

Radiant

Infant

Resuscitation

Infant

Intensive

Infant

Resuscitation

Infant

Intensive

Change

Description

and

capacitor

Head - Spare

Warmer - Spare
Centre - Spare
Centre - Exploded

Blue

models

Head - Spare

Warmer - Spare

Centre - Spare

Care

Centre - Exploded

Care

History.

Explanatlon.................................

Manual

of

C16

Parts/Exploded

Parts/Exploded

Parts/Exploded

Parts.....................................

Diagram.

Parts/Exploded

Parts/Exploded

Parts/Exploded

Centre - Spare

Centre - Exploded

Since

Last

Change

to

[W703 J models

Diagram.

..........................

Diagram.

Parts.

.........................

Parts.........................

Diagram.

Diagram................

Version

only.

Diagram.

Diagram.

.........

..............

Diagram.

Diagram.

................

......

.........

..............

......

eee

Page

Affected

18,21,35

24
25
26
27
28

29
29
30
31
32
32
33

34

35
36

Numbers

IW702/IW703

Technical

Manual

№

Revision

E

%

Issued

1/07/94

page

1

1.0

1.1

1.1.1

General

This

documentation

I

W702

Servo

IW703

As

The

Product

Catalogue

Dimensions:

Supply

Supply

Supply

Infant

fitted

to

[W703

Specifications.

voltage:

current:

frequency:

Specifications.

defines

Controller.

Warmer

an

1W817,

Infant

number:

Head.

TW818,

Warmer

1W703

Height

Width
Depth
Weight

230V + 20V

3.0 A maximum

6.0 A maximum

50 / 60

Head

115V + 15V

the

technical

or

[W820

provides

107mm

390mm
760mm

13kg

Hz

specifications

Infant

Warmer.

manual

control

—

~

at

230V

at

115V

of

of

the

the

IW703

600W

Infant

radiant

Warmer

heater

Head,

power.

and

the

1.1.2

Heater

Capacity:

Lights:

Operating

INSTALLATION

1.

General.

The

minimum
deliberately,

For

.

Power.

Ensure

supply.

OPERATION

1.

When
Head).

i.

li.
ii.

Instructions.

unit

attachment,

that

Ensure

fitted

Switch

Switch
The

warmer

SERVO

must

be

distance

by

accident,

please

power

the

with

on

power

on

lights,

mode

600W
26W

firmly

and

from

the

or

refer

supply

is

power

cord

an

[W702

by

depressing

if

required,

will

automatically

refer

to

section

securely

infant

by

misuse

IW817/1W818/1W820

the

same

is

Servo

located

is

maintained

of

any

as

that

specified

not a hazard

Controller

the

POWER

by

depressing

start

operating

'TW702

Servo

kind.

to

to

its

mounting

with

assembly

on

the

staff

and

(optional

button.

the

LIGHTS

in

SERVO

Controller - Operation’

surface

no

decrease

instructions.

unit.

Plug

patients.

accessory

button.

mode.

For

at

all

being

the

power

to

[W703

operating

(page

times,

possible,

cord

Infant

instructions

3).

so

that

into

Warmer

the

either

power

in

IW702/IW703

Technical

Manual

X

Revision E *

Issued

1/07/94

page

2

v.

vi.
vii.

viii.
ix.

Warnings

2.

When

11.

111.

IV.

у.

vi.
vii.

viii.

Warnings

Operating

example,
Check

Servo
Preheat
Select

temperature.

Place
When

temperature

as a temperature

If

the

infant's
temperature
Temperature

not

Switch
Switch
Switch
Preheat
Select

temperature.

Place
We

procedure:

a.

b.

c.

d.

Allow
temperature

the

Use
Controller.

in

MANUAL

then

it

must

that

the

MANUAL

Controller

for

desired

the

operating

[W702

fitted

on
on
on

for

desired

the

recommend

Set

up

Wipe
cotton

Affix
navel

Cover
(800IW

Plug

4-5

temperature

only a Fisher & Paykel

are

ten

minutes
heat

infant

in

the

the

is

constantly

monitor.

Servo

skin

temperature

monitor.

Monitor.

with

an

power

by

lights,

if

heat

by

depressing

ten

minutes
heat

infant

in

the

use

the

TM101

off

any

or

gauze

the

skin

and

the

xiphoid

the

skin

102)

to

the

skin

sensor

minutes

constantly,

to

adjust

illuminated.

setting,

warmer

IW702

depressing

required,

setting

of

vernix

dampened

sensor

sensor

ensure a true

for

mode.

be

selected

mode

light

with

the

HEAT

between

crib.

in

MANUAL

monitored.

See

section

Controller

should

We

recommend

Servo

the

by

depressing

the

with

the

HEAT

between

crib.

the

Fisher & Paykel

temperature

caseosa

with

probe

process).

probe

probe

into

skin

temperature

adjusting

to

the

new

If

manual

by

depressing

is

Controller.

POWER

HEAT

monitoring

and

acetone

to

the

with a Fisher & Paykel

skin

the

the

manual

setting.

800IW007

control

the

on

both

the

CONTROL

1-10,

and

mode,

It

is

possible

'[W702

not

1-10,

temperature

Servo

fitted

be

monitored

the use

button.

the

LIGHTS

MODE

CONTROL

and

TM101

stains

from

(CH3COCH>3)

infant's

TM101

readings

heat

Skin

button.

unit.

abdominal

temperature

is

HEAT

[W703

knob

allow

it

is

to

use

Controller - Operation’

to

the

knob

allow

temperature

the

reading.

to

control

Sensor

required,

MODE

Infant

set

the

important

the

TW703

continuously

of

button.

set

the

sensor

stabilise.

accordingly.

to

button

Warmer

to

10.

unit

to

to

[W702

Infant

the

Fisher & Paykel

to

10.

unit

to

monitor

placement

or

other

median

Sun

Spot

monitor.

Monitor

Probe

pre-heat

reach a stable

ensure

Servo

reach a stable

appropriate

line

(800[W101)

with

to

MANUAL

Head

and

that

Controller

(page

Warmer

using

and

site

with

(halfway

the

Allow

4-5

the

the

an

the

solvent.

between

infant's

IW702

heater

mode.

the

IW702

operating

the

infant's

simply

3).

Head,

external

TM101

operating

following

absorbent

or

Sun

minutes

Servo

for

the

the

Dot

skin

for

To

ensure a true

Paykel

Sun

Spot

ALARM

The

IW703

Infant

Warmer

alarm

has

been

activated,

supply

and

consult a qualified

IW702/IW703

skin

temperature

(8001W101)

Head

has

the

warmer

technician,

Technical

or

Sun

an

audible

should

Manual

reading

Dot

not

or

contact

#

(8001W102).

cover

the

Skin

and

visual

OVERHEAT

be

used.

your

nearest

Revision E #

Sensor

Disconnect

Fisher

Issued

Probe

ALARM.

the

warmer

& Paykel

1/07/94

with a Fisher

If

the

overheat

from

power

dealer.

&

page

3

1.2

1.2.1

1.2.2

IW702

As

The

600W

Product

Catalogue
Supply
Supply
Supply

Operating

OPERATION

I.

Servo

fitted

to

IW702

radiant

voltage:
current:
freguency:

Operation

1.

Ensure

il.

Switch

111.

Switch
The

Controller
digital

Controller.

the

[W703

Infant

Servo

Controller

power.

heater

Specifications.

number:

Instructions.

in

Servo

Mode.

skin

sensor

on

power

on

lights

warmer

will

display

will

automatically

will

Warmer.

provides

IW702

10V + IV“

0.5

A

50

/60

Hz

probe

is

not

on

[W703

Infant

if

desired,

automatically

read

by

'111',

Power

supplied

the

[W703

plugged

Warmer

depressing

start

go

through

'222',

...

from

Infant

Warmer

into

the

IW702

Head

by

the

LIGHTS

operating

an

initialisation

'999".

the

IW703

Head

Servo

depressing

button

in

SERVO

procedure.

Infant

Warmer.

with

servo

Controller.

the

POWER

on

IW703

mode

and

During

control

button.

Infant

the

this

(PID)

Warmer

IW702

procedure

of

the

Head.

Servo

the

An
the

audio

Test
then

VI.

Check
IW702

УП.

To
Preheat

Vili.

Place
radiant

IX.

Wipe

gauze

Affix

and
(8001W

XI.

Plug

XII.

Select

XII.

The
contro]

the
temperature.
infant's

.

Allow

audio

skin

alarm

the

IW702

read

that

Servo

preheat

for

the

warmer

off

dampened

the

the

xiphoid

101)

the

skin

SERVO

desired

(between

MUTE

actual

4-5

alarm

sensor

will

38.0

degrees

the

Controller

the

radiant

ten

infant

any

vernix

skin

sensor

or

sensor

mode

skin

button

On

skin

minutes

will

sound

and a 'Prb'

probe

is

disconnected.

sound

and

Servo

Controller
Celsius

SERVO

minutes

is

Sun

mode
are

warmer,

with

in

the

crib.

appropriate.)

caseosa

with

acetone

probe

process).

(8001W102)

Dot

probe

into

on

IW703

temperature

32

and

37

degrees

down

for
releasing
temperature

for

the

skin

message

can

be

silenced

by

depressing

(plus

or

minus

indication

illuminated.

switch

to

the

HEAT

CONTROL

(Ensure

and

(CH3COCH3)

to

the

Cover

the

Infant

can

3

seconds,

the

within

temperature

stains

from

infant's

the

to

IW702

Warmer

be

Celsius).

and

MUTE

2

the

skin
ensure

set

seconds.

will

The

red

for

6

the

0.2

lights

on

MANUAL

manually

the

sensor

or

other

abdominal

sensor

true

a

Servo

Controller

Head

using

The

the

flashing

button,

readings

show

on

disconnect

minutes

TEST

degrees

both

the

mode

knob

set

placement

appropriate

median

probe

skin

by

depressing

the

IW702

set

temperature

digital

the

display

to

stabilise.

by

Celsius

on

set

heat

with

temperature

the

digital

light

will

depressing

button.

SKIN

The

after 5 seconds).

IW703

Infant

the

IW703

to

10.

level

currently

site

solvent.

line

(halfway

a

Fisher

SENSOR

the

Servo

Controller's

can

display
reverts

display

flash

on

the

MUTE

digital

Warmer

Infant

with

absorbent

between

&

Paykel

reading.

SOCKET.

HEAT

MODE

be

displayed

indicates

back

to

to

indicate

and

display

Warmer

controlling

temperature

the

indicating

off.

button.

should

Head

Head.

cotton

the

navel

Sun

Spot

button.

by

holding

desired

that

The

and

the

set

the

or

IW702/IW703

Technical

Manual

®

Revision E #

Issued

1/07/94

page

4

2.

Operation

111.

3.

Routine

It

is

operating

in

Manual

With

the

skin

Controller
The
With

Controller
on
except

recommended

can

heat

output

the

skin

will

the

[W702

the

[W703

Calibration

within

be

sensor

go

Servo

that

its

design

Mode.

sensor

probe

used

as a temperature

can

be

controlled
probe

into

Unmonitored

Controller

Infant

Warmer

Check

of

Skin

the

Skin

specifications.

plugged

manually

not

plugged

will

Head

Sensor

Sensor

in

monitor

MANUAL

flash,

overheat

Probe.

Probe

and

MANUAL

to

with

the

in

and

the

temperature

alarm,

is

checked

display

HEAT

the

mode.

every

mode

infant

CONTROL

MANUAL

The

display

will

be

selected,

skin

mode

green

MANUAL

will

inhibited.

three

months

the

IW702

temperature.

knob.

selected,

mode

be

blank

and

to

ensure

Servo

the

Servo

indicator

all

alarms,

that

it

is

11.

lil.

iv.

v.

vi.

Warnings

ALARMS

The

1.

5.*

Obtain a good
Place a thermometer

water

which

Switch

Plug

the

37

degrees

Allow

compare
The

LED

then

it

Please
with

regard

Use

only a Fisher & Paykel

Controller.
To

ensure a true

Paykel

IW702

High

Temperature

greater

Low

Temperature

less

than

Note:

temperature
minutes

Skin

Sensor

probe

has

Incorrect

readings
discarded.

In

Unmonitored

minutes

flashing

*

This

quality

is

between

on

an

IW703

Skin

Sensor

Celsius.

the

temperature

the

temperature

display

is

recommended

also

refer
to

Skin

Sun

Spot

Servo

Controller

than

that

that

set.

The

low

reading

with

PCI

Probe

been

Skin

from

the

an

audible

green

MANUAL

option

refers

should

to

Sensor

skin

(8001W101)

(high

set.

(low

temperature

selected)

Failure

disconnected

Sensor

two

MANUAL

mercury

and

Infant

Probe

the

is

within

skin

intermittent

to

the

thermometer.

the

probe

30

degrees

Warmer

into

the

of

the

Skin

on

the

LED

be

within + 0.5

that

the

Skin

IW702/IW703

Probe

temperature

or

has

audible

temperature

temperature

alarm

0.8

of

Disconnect

from

Probe

Reading

sensor

mode

mode

indicator

version

cup

end

of

Celsius

and

Head

IW702

Servo

Sensor

Probe

display

degrees

Sensor

Technical

calibration

8001W007

reading

Sun

Dot

(8001W102).

and

visual

light

and

light

and

is

disabled

degrees

the

probe

with

beep

2.5

of

('Prb'

Servo

('E20'

beads

PC1

alarm.

during

software

the

Skin

38

degrees

which

has

Controller

and

of

the

IW702

Celsius

Probe

be

Manual,

checks.

Skin

Sensor

cover

the

alarms

audible

audible

during

the

set

point

display

Controller

display

do

not

selected

At

15

non-monitored

only

Sensor

Probe

into a container

Celsius.

an

IW702

thermometer

to

of

replaced.

Section

Skin

for

the

alarm) - temperature

alarm) - temperature

warm-up.

or

and

or

has

and

match - the

(No

alarms

minutes a continuous

Servo

and

set

the

temperature

to

stabilise.

the

reading

the

thermometer

4.3

for

Probe

with

Sensor

Probe

following

30

audible

malfunctioned.

audible

conditions:

It

is

enabled

minutes

alarm) - the

alarm) - the

skin

sensor

with

PC1

operation.

Controller

of

from

of

attached.

control

Once

the

thermometer.

reading.

further

information

the

[W702

with a Fisher

is 1 degree

is 1 degree

probe

open

audio

Celsius

Celsius

when

the

switch

on.

skin

temperature

should

circuit)

alarm

warm

to

stable,

If

not,

Servo

&

skin

(15

sensor

be

at

12

and

IW702/1W703

Technical

Manual

*

Revision E %*

Issued

1/07/94

page

5

1.3

1.3.1

1.3.2

1.3.3

Temperature

PID

control

Temperature

Skin

sensor

Option

1.

Option

2.

With

Option 2 the

servo

control

"E20"

in

the

It

requires

mounted

coloured

Temperature

Three

Range 5 to

Accuracy

Set

in

connector.

digit

30

Point

Control.

of

600

Watt

Sensing.

temperature

Single
Twin

integrity

determined.

display.
the
the

14

61°C.

to

Temperature.

Option 2 above

use

of a twin

probe

head).

Display.

mm 7 segment

Below 5°C

40°C + 0.3 °C.

radiant

heater

measurement

thermistor

thermistor

of

the

Deviation

thermistor

To

identify

LED

displays

Resolution + 0.1°C

using

using

sensor.

sensor.

two

thermistors

from

is

selected

display.

'Lo'.

[W702

standard

normal

skin

the

twin

Above

Servo

Controller.

characteristic

are

continuously

results

in

by a board

temperature

thermistor

61°C

level

displays

thermistors

warmer

PCB
sensor
sensor

compared

shut

down

programming

(two

identical

the

cable

'Hi'.

(YSI

400

and

their

with

an

input

thermistor

is

terminated

compatible).

capability

error

port

with a blue

for

message

(PC4).

sensors

1.4

1.4.1

1.4.2

Temperature
Maximum

The
digital
2

seconds

Alarms.

Temperature

Tracking

Indication

The
within

Sensor

If

the

alarm
disconnect

temperature

set

point

display

to

temperature

by

Low

temperature

0.8

°C

Disconnect

skin

temperature

will

red

selection

can

be

indicates

indicating

Alarms.

alarm

flashing

of

the

set

Alarms.

be

enabled.

LED

and

by

pointer

is

limited

displayed

the

set

temperature.

sensor

temperature.

of

plus

Low

and

High

alarm

is

disabled

point

or

sensor

probe

Indication

audio

alarm.

knob

on

to

37

°C

by

holding

or

minus

temperature

30

minutes

is

disconnected

is

linear

scale

should

the

the

MUTE

On

releasing

one

degree

red

during

warm

from

switch

by a 'Prb'

marked

control

be

button

the

from

set

LED's

and

up.

It is

on (15

or

develops a low

message

in

one

degree

turned

fully

down

for 3 seconds

MUTE

button

temperature.

audio

alarm.

enabled

minutes

or

on

the

digital

increments

clockwise.

the

when

the

with

PC1

high

from

then

display

resistance

display

reverts

sensor

temperature

selected).

the

plus a flashing

32

to

37.

the

flashing

within

disconnect

is

IW702/1W703

Technical

Manual

#

Revision E %

Issued

1/07/94

page

6

Audio

1.4.3

Alarm.

A

choice

of

programming

A

momentary

LED

indicators

within a mute

the

ISO

input

port

depression

remain

delay

draft

(PCO).

flashing

will

cause

standard

of

the

MUTE

until

the

audio

the

audio

alarm

button

alarm

alarm

or a gliding

will

silence

condition

to

be

re-enabled.

tone

can

the

audio

clears.

be

alarm

Any

new

selected

by a board

for 6 minutes.

alarm

condition

level

The

relevant

occurring

PCB

1.5

1.5.1

Safety

Protection.

Temperature

All

alarm

Temperature
however

Clearing a 'Prb'

time

as

There

are

Warmer

The

overheat

adjacent

The

other

100%

duty

initiated.

heater.

by

turning

In

the

microprocessor

to

limit

checked

Deviations.

conditions

Alarm,

remains

the

temperature

three

independent

Head

and

protection

to

the

heater

back-up

cycle

Both

the

Indication

the

mains

IW702

control

maximum

by the

following

cause

an

muting

on

until

the

alarm

will

rises

one

in

the

in

to

sense

is a circuit

in

any

30

above

safety

is

by

an

overheat

power

to

Servo

Controller

continuously

temperature

method:

immediate

the

alarm

fault

has

cause

the

to

within

back-up

IW702

the

warmer

any

abnormal

which

second

period

back-up

the

warmer

under

power

causes

cleared.

low

temperature

0.8

°C

over

temperature

Servo

Controller.

head

temperature

monitors

of

circuits

red

LED

head

an

over

monitors

fault

conditions

shut

down

of

the

heating

of

the

is

the

operation

cause a relay

and a continuous

off.

temperature

the

to

recommence,

alarm

disable

set

point.

protection

firstly a mechanical

rise.

heater

contro]

an

immediate

to

protection

warmer

operation.

to

38

°C.

overhead

function

circuits.

bimetallic

duty

cycle.

power

latch

out

audio

tone

This

The

integrity

heater.

the

Low

to

be

Two

are

Should

shut

removing

which

circuit

back-up

of

this

In

the

case

of a Low

Temperature

enabled

in

thermostat

down

all

can

independent

protection

until

the

[W703

the

heater

phase

power

only

be

protection

LED

such

Infant

mounted

go

to

a

will

be

from

the

silenced

of

the

is

preset

can

be

(a)

Remove

(b)

Observe

(c)

Push

(d)

Observe

(e)

On

1.5.2

1.5.3

Sensor

The

skin

frequency

Microprocessor

A

control
detected a hardware
additional

LED

on.

initialisation.
isolation

the

skin

'Prb'

the

TEST

display

warmer

Isolation.

relay

head

temperature
switching

Watch

loop

in

the

hardware

The

watch

Also

lockout

IW702//W703

temperature

display,

switch.

indicates

observe

power

operating

reset

disables

dog

tested

circuitry. A

flashing

sensor

supply

Dog.

circuit

the

circuit

at

Technical

sensor

sensor

38 + 0.2

that

yellow

is

removed

and

software

attempts

heating

is

tested

turn

on

failure

Manual

(probe)

from

disconnect

°C.

duty

cycle

from

the

optoisolator

continuously

to

circuit,

at

and

here

interface

reinitialise

blanks

turn

on

thereafter

is

indicated

№

Revision E #

the

connector

LED

and

LED

is

ground

(leakage

monitors

the

the

display

by

deliberately

every

110

by

socket.

audio

alarm.

off.

leakage

microprocessor.

for

correct

and

minutes,

an

'E30'

path

by a totally

current < 10

operation.

turns

halting

the

for

error

Issued

pA).

If

this

the

high

processor

correct

message

1/07/94

-

isolated

Should a fault be

is

not

temperature

operation

in

the

high

successful

red

and

forcing

is

the

display.

page

7

Basic

1.6

Operating

When

(a)

IW703

The

IW703

the

on
Controller

manual

The

JW702

and

When

(b)

IW703

The
green

enable

To

Head

(MANUAL

1W703

The

panel.

disables

LED

control

contro!

and

Switching
out

Modes.

Infant

IW703

Warmer

Infant

Infant

panel.

front

operating

Indication

Controller.

Servo

between

any

Infant

IW703

Infant

indicator

manual

the

panel.

mode).

Warmer

Infant

Warmer

initialises

Head

Warmer

manual/servo

low

Warmer

on

operating

Indication

Head

has

mode

again

is

temperature

Warmer

initialises

[W703

the

mode,

is

Head

Head

control

be

to

by

modes

alarms

Head

Infant

by

HEAT

fitted

is

the

in

panel

deliberately

LED

green

cancels

until

not

is

the

with

Warmer

depress

green

a

CONTROL

with

Servo

and

indicators

any

the

with

fitted

manual

Head

HEAT

the

indicator

LED

[W702

mode.

also

selected

temperature

low

sensor

[W702

heat

control

MODE

then

is

Controller.

Servo

Indication

green

a

by

from

both

on

within

is

Servo

control

panel

button

Infant

the

on

adjusted

by

is

LED

IW703

the

[W703

the

alarms,

of

°C

0.8

Controller.

disabled.

not

will

the

on

Warmer

the

give

to

green

a

on

Infant

Infant

resets

set

the

The

lit.

be

[W703

Head

desired

LED

[W702

the

Warmer

Warmer

warm

the

point.

MANUAL

Infant

heat

indicator

Servo

up

Warmer

control

setting.

Head

Head

time

mode

panel

1.6.1

1.6.2

1.7

Operation

Servo

servo

the

In

operating

on

Manual

In
the

mode).

When
the
Controller.

plugging

Controller
alarm

Calibration.

The
over

(a)
(b)

temperature

1W703

the

Operation

manual

the

sensor

manual

the

indication

only

in

initiated

is

temperature

only

temperature

Connect
Push
level

to

(with

operating

Infant

mode

plugged

mode

temperature

The

sensor

the

then

can

which

control.

voltmeter

a

TEST

the

a

low.

IW702

mode

selected

Warmer

(with

the
in,

be

Head

IW702

operator

the

or

selected

is

manual

of

display

however,

in

used

muting

on

calibration

This

volt

(5

and

button

Servo

temperature

the

[W702

the

on

no

has

Servo

the

has

equivalent

the

if

control

is

all

monitoring

a

causes

required

accomplished

is

range)
adjust

Controller

sensor

Servo

influence

Controller

of

option

switching

of

sensor

patient

the

is

blanked

functions

mode.

unmonitored

the

the

on

is

in

between

to

VR3

fitted).

must

Controllers

this

in

fitted).

monitoring

all

is

manual

green

all

and

revert

If

IW702

following

the

OVHT

the

point

the

attached

be

mode

servo

the

connected

not

alarms,

normal

to

sensor

the

MANUAL

Servo

test

where

to

temperature

operation.

of

facilities

off

unit

to

indicator

LED

and

visual

operation

subsequently

is

state

Controller

way:

ground

and

point

voltage

the

infant

the

servo

IW702

on

and

unplugged,

to

the

is

on

changes

The

the
are

the

be

the

control.

(except

(unmonitored

the

audible

above

and

just

desired

the

and

control

heat

control)

MANUAL

Controller

Servo

[W702

inhibited.

[W702

a

re-entered.

analog

degree

38

PCB.

servo

a

from

with

Servo

On

Servo

'Prb'

high

indicating

an

of

use

on

'A|

the

test

back

the

|'

||

Revision

#

(Refer

A

the

of

horizontal

to

to

E

performed

be

button

changes

can

enter

menu

adjust

and

vertical

from

Technical

Alternatively

From

(a)

Push

(b)

display

adjustment

engineering

the

TEST

the

just

IW702/IW703

without

engineering

VR3

bars

Manual

Section

IW702

'A==".

Issued

#

meter.

3.0.2

Servo

3.0.3).

and

Controller

1/07/94

PCB,

so

the

page

8

1.8

1.9

Environmental

Temperature
Humidity
Vibration

Standards

Classification

and

Specifications.

18

normal

Approvals

under

IEC

601-1:1988

AS

3200.1:1990

Class
Type

Continuous
Not

classified

Not

suitable

oxygen

Operation

°Cto

29
0t090%
nursery

B

handling | normal

(Grey

1

operation

for

or

°C

Models).

against

use

in

nitrous

|

|

the

ingress

the

oxide

Transport

-----
—-----

transport

of

presence

handling

liquid

of a flammable

Storage

-10

°C

0

to

|

-----

anaesthetic

mixture

to

90%

60

°C

with

IW702/IW703

Technical

Manual

*

Revision E #

Issued

1/07/94

page

9

2.0

2.1

2.2

Circuit

Introduction.

This

section

[W818

and

all

the

above

IW703

(Refer

On
state
circuitry
switched

The
maximum

(Refer

MODE
the

If

when
above,
which

Infant

to

turning

by

HEAT

to

control,

green,

the

optional

not

the

Is

Section

the

from
by

of

Section

MANUAL

in

circuitry

indicated

Operation.

describes

[W820

models.

the

power

Power

the

triac

CONTROL

99%.

servo

MANUAL

Infant

Warmer

4.5

Circuit

On

mains

Q5

and

The

2.2.1).

push

button

between

by

D8 a green

briefly

Refer

Head.

switch

Set

power

time

potentiometer

reason

mode

unit

mode

the

Warmers,

to

the

Diagram

SW3

circuitry

supply.

cycle

for

The

on

SW1

selects

LED

D7.

(W702)

and

push

button

LIGHTS

operation

and

the

IW702

Circuit

Diagrams

043

040

on,

the

overhead

of

U2-A.

Power

controlled

VR1

this

less

than

time

is

indicated

the

is

fitted,

indication

SW2

LED.

of

the

[W703

Servo

in

571

IW703

fluorescent

Optocouplers

to

the

by

the

circuitry

controls

100%

by

heater

power

the

HEAT

is

by

the

and

triac

Infant

Controller

Section

Infant

600

Watt

the

on

duty

cycle

the

yellow

on

or

MODE

SERVO

Q6

controls

Warmer

4.0.

Warmer

lights
U4

and

overhead

between

time

(duty

is

for

duty

off,

the state

push

mode

the

Head

which

can

optionally

Head.)

and

heater

are

U5

totally

radiant

transistors

cycle)

fail

safe

cycle

LED

of

button

then

green

LED

fluorescent

as

fitted

initiated
isolate
heater

assembly

Q1

and

Q2.

from

about

monitoring

D9.

The

which

is

indicated

selects

D4.

Similar

lights

the

to

IW817,

be

fitted

in

the

the

control

5%
purposes

HEAT

this

option

to

state

to

the

to

off

is

a

by

of

2.2.1

2.3

2.3.1

Manual

At
This

driven

current

As
of

causes

allowing

saturating

circuit
circuit

The
HI,

initiating

The
remain

manually

IW702

isolation

Overheat

power

on,

guickly

into

sourced

long

as

R2,

C2

Q5

pin

Q7

from

U1-C

temperature
which

the

overheat

active

reset.

Servo

Circuit

Protection.

Q9

is

driven

charges

saturation

the
(approximately

the

12

and

mains

and

mounted

is

same

audio

as

C2

ensuring

by

from

the

bridge

heater

control

heater

switching

U1-D

to

float

shunting

power.

turning

on

in

the

[W703
adjacent

down

shut

can

alarm

the

as

long

Controller.

to

A

and

into

saturation

that

the

state

of

rectifier

circuit

does

30

seconds)

triac

to

high

as

base

drive

At

the

same

the

OVERHEAT

Infant

Warmer

the

to

procedure

be

only

temperature

Conversion.

D

by

the

Power

pin

14

U1-D

optoisolator

D12

driven

not

go

to a 100%

normal

operation

go

to

continuous

C2

discharges

from

Q8.

time

pin 6 U2-C
ALARM

Head

elements.

heater

described

as

disabled

by

excessive

is

On

is

U6.

in

turn

through

This

in

red

is

monitored

above.

turning

until

or

Set

circuit

low.

During

The

state

from

the

duty

cycle

will

ensue.

conduction,

R2.

turn

disables

is

also

driven

LED

D10.

by

temperature

the

If

mains

the

time

such

of

U2-A

normal

of

the

opto

snubber

Eventually

the

power

network

for

longer

If

however a fault

Q9

will

come
pin

relay

RL1

high

enabling

bimetallic

rises

off.

overheat

the

as

through

circuit

than

C10

operation

is

determined

R34

the

time
occurs

out

of

14

U1-D

isolating

the

over-heat

excessively

audio

The

protector

and

D16.

O9

by

the

and

C9.

constant

which

saturation,

goes

high

the

heating

audio

alarm

protector

opens

H1

will

alarm

can

is

be

4.6

Section

to

(Refer

probe

sensor

skin

The

switching

power

supply

IW702/IW703

Diagram

Circuit

isolated

is

transformer

Technical

Servo

TW702

567

040

043

section

this

ground

from

T1.

Control

Manual # Revision E #

on

and clock

signals

Controller

PCB

the

of

from

the

Issued

1.)

Sheet

-

high

the

by

microprocessor

1/07/94

are

frequency

passed

page

10

to

this

2.3.2

isolated

clock

and

is

then

communicated

turn,

voltage

calibration

These

sample
comparator
start

of an

comparator

high

speed

counter
digital

conversion.

Servo

Over

The

comparator

via

VR3

U14-D

goes

and

is

totally

circuit

load

network

levels

resistors

voltage
U14-C.
integration

U14-C

optocoupler

timer.

Thus

Temperature

U14-D

to a voltage

low

enabling

independent

through

to

from

R17,

levels

The 3 by 2 multiplexer

going

the

level

optoisolators

of

U10-A

and

the

multiplexers

the

temperature

RI8

and

are

applied

period

is

conveyed

high.

The

U16

to

the

input

voltage

Protection

has

its

input

equivalent

optoisolator

of

microprocessor

U10-B.

U12

R19.

to

start

microprocessor

levels

and

connected

to

38

U17.

U8

and

U9

and

The

current

and

U13.

The 1 by 8 analog

control

pin 5 of

by a transient

and

U12

controls

stop

are

referenced

38

°C

directly

°C.

If

This

output

control.

VR2,

U14-B

signals

where

Test.

to

the

skin

signal

loaded

control

signal

the

skin

where

they

the

switching

through

of

the

integration

by

interrupt

to a discrete

the

skin

temperature

temperature

from

into

the

shift

latched

multiplexer

temperature

are

amplified

of

the

integrator

C27

and

the

ramp

control

count

completing

sensor

sensor

the

opto

is

used

register

into

the

sensor

and

end

by

are

they

start

and

exceeds

to

U11

shift

U13

selects

probe

and

passed
U14-A.

pin 8 of

passed

and

the

analog

is

referenced

38

°C

disable

by

the

register

in

the

to

the

The

the

by

the

stop

a

to

pin

14

heating

2.3.3

The

resistor

network

of

38

°C)

is

switched

of

the

digital

only

calibration

Microprocessor

(Refer

to

Section

The

output

from

the

microprocessor

to

reflect

the

supplies

This

of
Software

synthesised
mains
U2-A

the
high.

the

the
Overheat)
control

both

data

is

the

mains

control

by a software

frequency.

to

the

WDT

will

This

will

continuing

digital

display.

line

circuit

shifted

trap

of

into

display

accuracy.

required

Control.

4.7

Circuit

the

high

U3.

magnitude

the

serial

by

the

power

is

determines

This

input

of

fail

and

within

force

the

high

trap

In

which

originates

via

U2-B.

R32,

33,

circuit

on

the

Diagram

speed

Here

of

the

data

for

ICLK

taken

the

control

WDT

U3.

50 - 100

processor

signal,

the

event

81,

82,

by

the

This

38

[W702

unit.

043

optocoupler

under

software

input

analog

the

isolation

(Isolation

via

C19,

frequency

loop

clock

drives

If

the

internal

milliseconds

to

endeavour

will

via

of an

excessive

from

opto

83

(adjusted

TEST

button

°C

reference

040

567

U16

control,

voltages
circuit

Clock)

shaped

is a Watch

U1-B

by

and

derives a real

the

full

software

isolate

U17

of

during

SW1

is

IW702

is

squared

the

from

commands

and

DCLK

U2-D

Dog

wave

loop

the

output

to

resume

the

skin

temperature

the

isolation

manufacture

and

reed

also

used

Servo

by

U2-C

counter

the

multiplexer

and

(Display

and

applied

time

Clock

(WDT)

bridge

rectifier

collapses,

pin 3 of

program

triac

heater

to

an

equivalent

relay

RLI

to

in

the

setting

of

Controller - Sheet

and

fed

to

the

in

the

I/O

control

U13.

The

the

digital

display

Clock)

respectively. A sample

to

the

RST

clock

for

internal

which

is

circuit

U1-C,

or

its

cyclic

nature

U2-A

will

control.

control

probe

circuit

If

circuit

reading,

also

disables

this

temperature

give a visual

VR3

which

2.)

RST

6.5

input

IC

U6,

is

directed

SOD

line

information.

5.5

input

timing.

synchronised

U1-A

is

interrupted,

drive

the

trap

is

not

successful

and

via

Q3

the

OVHT

the

triac

check

is

the

of

of

U3

of

U3.

Also

to

the

through

input

blank

(38

°C

heater

Control

under

Control

head
detects

lines

software

lines

and

with

alarm

IW702/IW703

DCINH

MNLSRV

temperature

(Duty

control

Q16

provide

Cycle

Inhibit)

periodically

and

conditions.

Technical

OVRTMP

for

heater

test

and

the

isolation

sense

shut

Manual

DTYRST

manual

down

№

(Duty

relay

in

the

or

servo

operation

if

the

servo

Revision E X

Cycle

[W703

unit,

Reset)

Infant

as

while

Issued

in

combination

Warmer

selected

operating

1/07/94

from

Head.

in

manual

with

the

Q17

warmer

mode

page

11

3.0

3.0.1

3.0.2

Performance

The

[W702

Servo

are

accessed

calibration

Display

If

the

temperature
indicate

and

off

reverts

Engineering

The engineering

(a)

Press
two

(b)

Release
display

(ο)

As
flashes

(d)

The
of

(e)

To
desired
the

in

procedure.

of

Temperature

MUTE

display.

this

display

for

half a second.

to

continuous

Menu.

the

MUTE

seconds.

the

has

the

display

off.

engineering

the

display

enter

the

function

MUTE

Check

Controller

the

following

button

on

will
condition

display

menu

is

button

MUTE

flashed

flashes

menu

will

various

is

button

has a number

way.

Control

the

[W702

convert

the

When

of

entered

until

button

off

(approx.

on,

is

now

step

at

two

engineering

indicated

is

again

and

Calibration.

The

Setting.

Servo

to

displaying

display

the

MUTE

the

Skin

Sensor

in

the

following

the

display

at

the

instant

half a second

again

release

entered,

second

functions

release

the

pressed

and

of

functional

use

of

these

Controller

the

precise

alternately

button

and

intervals

MUTE

held,

is

Probe

way:

of

the

of

the

later).

the

MUTE

if

the

through

(indicated

to

enter

flashes

released

temperature

display

button

display

routines

measurement.

MUTE

and

facilitates

is

held

down

setting

on

for

the

flashing

button,

button

the

numbers

by

the

momentarily,

the

displayed

of

control

self

test

monitoring

the

performance

for 3 seconds

the

temperature

approximately a one

display

blanks

and

on,

then

press

is

now

one

rotating

and

function.

flashes,

then

and

press

and

hold

held

down

to

six (-1-

numbers 1 to

when

the

routines

the

skin

control

second

within

one

hold

for

and

hold

as

the

the

centre

to

-6-).

display

which

check

sensor

knob.

interval

second

approx.

after

display

digit

6), as
changes

and

To

the

the

3.0.3

The

functions

When
button

sensor.

Engineering

The engineering

engineering

Release
display

to

the

next

m

D

D
Db

U

O

the

MUTE

is

not

menu

the

MUTE

showing

test

A

b
ο

d
E
F

displayed

pushed

Tests

the

just

Calibration

Heater
Integral

N/A
N/A

Exit

are

listed

Servo

controller
Software
Heater
Programming
Software

Optional

button

test

version

duty

cycle.

release

exit,

is

released

again

the

Menu.

menu

is

number

push

5.

button.

letters A through

The

the

MUTE

of

duty

cycle

display.

engineering

below.

model

number.

number.

link

status

(Port 5 to

number.

not a visible

display

entered

Hold

various

for

38

degree

inhibit

tests

display

the

next

will

from

the

MUTE

engineering

F.

Each

about 1 second.

over

test.

to

normal

0).

function.

function

revert

(2

seconds)

the

engineering

button

tests

test

is

held

temperature

Relay

drop

servo

number

down

are

as

The

engineering

control.

out

control

will

be

to

the

menu

and

indicated

long

as

time

indicated

of

skin

displayed

display

remove

the

temperature.

in

the

by

the

MUTE

tests

of

following

the

are

in

(1

second)

the

skin

temperature

left

hand

button

is

described

seconds.

but

if

the

temperature

way.

Enter

probe.

digit

of

the

up.

To

step

below.

IW702/IW703

Technical

Manual

*

Revision E *

Issued

1/07/94

page

12

If

the

normal

this

mode

MUTE

button

software

during

is

control

clinical

not

touched

loop

is

interrupted

operating

for 6 minutes

during

conditions.

the

engineering

the

engineering

test

test

mode

mode

it

is

will

not

terminate.

advisable

As

to

the

enter

3.1

3.1.1

Performance

IW703

The

IW703

Do
IW702

3.1.2)

1.

Phillips

2.

(a)

(b)
(ο)
(d)
(e)

(5)

(h)
(i)

0)
(k)
(1)

(m)
(n)

(o)

Infant

following

Infant

not

perform

Servo

and

Equipment

screwdriver

Manual

Locate

short
Infant

turn

the
Connect
Check

Select

Check
Check
Check
Turn

Turn
Push
Push
Rotate

to 2 seconds)

Rotate
Rotate

briefly

Rotate

Checks.

Warmer

test

Warmer

Controller

also

no

Head

the 8 way

length

Warmer

heater

Warmer

Warmer

MANUAL

MANUAL
after

60

yellow

off

mains

on

power.
LIGHTS
HEAT

HEAT

HEAT

HEAT

flash

HEAT

Head

can

be

carried

Head,

this

test

if

as

dismantling

Required.

and a short

Performance

servo

of

wire

short

Head

PCB

control

triac

to

power

initialises

mode.

mode

seconds + 30

duty

cycle

power

and

Check

switch.

MODE

off

switch.

CONTROL

or

no

flash

CONTROL

CONTROL

then

CONTROL

on

Performance

out

on

to

ensure

that

the

IW817,

the

test

is

then

of

the

[W703

length

of

Check

harness

Check

connector

pins 1 and 3 of

join

the

junction

to

100%

outlet

and

with

heater

Note

time.

green

LED

seconds

LED

off.

remove

head

of

again.

slightly

shorting

initialises

green

Check

(VR1)

fully

amber

LED.

slightly

clockwise.

fully

clockwise.

anticlockwise.

Check.

an

[W817,

all

IW818

better

Infant

hook

Sequence.

duty

turn

and

on.

Duty

delay,

with

LED

green

anticlockwise.

[W818

functions

or

IW820

performed

Warmer

up

wire.

i

at

the

rear

this 8 way

of

R15

cycle

when

on.

fluorescent

cycle

red

overheat

link

from 8 way

heater

on

and

fluorescent

LED

on.

Check

Check

or

are

to

Infant

under

Head

^

<<:

TC

of

the

socket

and

R44

the

lights

yellow

and

fluorescent

Amber

Check

duty

for

99%

Check

[W820

Infant

design

specifications.

Warmer

software

ts

required.

с:

1

ce)

4

scones

A

IW703

Infant

together. Or

to

the

MANUAL

off.

LED

on.

LED

and

audio

socket

or

lights

lights

come

light

flashing

for

low

cycle

increases

duty

cycle

duty

cycle

Warmer,

is

fitted

control

À

©

A

il)

Warmer

alternately

anode

end

mode

is

selected

alarm

PCB.

off.
on.

(15

second

duty

cycle

proportionally.

ie.

the

decreases

proportionally.

with

(Refer

A

Á

Head

of

D15.

come

ie.

amber

fitted

with

the

optional

to

Section

(ег

$

a

pır

and

on

the

IW703

This

on.

on.

period).

very

brief

light

SA

with

will

(up

must

an

nec

a

ン

6

i

he

/

|

Shovi

o

2

人

-

3.

Manual

In a maximum
continuously)

a.

At

b.

At

3.1.2

IW702

The

following

Infant

functions

All the

in

most

Head

temperature

as

least

0.9

least

0.6

Servo

Controller

test

Warmer

tests

cases

Head,

are

to

design

(Section

on

1W702/1W703

Run

long

as

metres
metres

can

3.1.2

previous

Check.

of

27

°C + 2

the

following

(36")

clear

(24")

clear

Performance

be

carried

to

which

specifications.

(3))

control

Technical

conditions

airspace
airspace

out

on

the

optional

must

be

settings

Manual

°C,

the

AROUND
ABOVE

Check.

an

[W817,

[W702

sequenced

and

test

*

radiant

warmer

are

met:

the

radiant

the

radiant

[W818

Servo

in

exact

order

results.

Revision E X

can

warmer.

warmer.

or

IW820

Controller

as a successful

Issued

be

run

Infant

is

at

100%

Warmer,

fitted,

test

1/07/94

to

pass

duty

with
ensure

is

dependent

cycle

an

that

(ie

[W703

all

page

13

1.

Equipment

34.5

°C

Test

The

34.5 °C

equivalent

Servo

2.

Ensure

(a)

Plug

(b)
(c)

(a)
(b)

(c)
(d)
(e)
(f)
(g)

(h)

(1)

0)
(k)

(1)
(m)
(n)
(0)

(p)
(q)

(r)
(s)
(t)

(u)

(v)
(w)
(x)
(y)

(2)

34.5

Turn

Servo

Turn
Observe

reads

On

IW703

On

IW702

Check
Turn
Check

Warmer

Turn

Check
Check
Display
alignment

Enter

Enter
Push
Ensure
and

enter

Wait
Momentarily
(Q17

Return
Push
Ensure
Test

Probe.

On

IW703

Check

Turn
On

IW703

Remove
Infant

Now

IW702

on

IW702

IW702

TEST

for

test).

TEST

IW702

go

Required.

Probe.

Test

Probe

is a bantam

to a temperature

Controller

IW703

°C

Controller

the

count

approximately

Infant

Servo

there

IW702

Head - Check

low

temperature

operation

temperature

with

engineering

engineering

button

IW702

engineering

audio

to

normal

button

[W702

Infant

MANUAL

Infant

34.5

Warmer

to

Section

Test

Infant

Warmer

Test

Probe

Servo

Controller

Performance

IW703

Infant

up

on

IW702

34.5.

Warmer

Controller - Check

is

no

audio

Servo

Controller

Servo

Servo

Controller

of

MUTE

control

front

panel

menu

test

and

Servo

Controller
test

alarm

at

push

the

operation

and

Servo

Controller

Warmer

mode

Servo

Controller

Warmer

°C

Test

Head - Check

3.1.1

phone

of

34.5

°C.

Set-up.

Head

into

IW702

temperature

Warmer

Servo

Head - Check

alarm

or

alarm

temperature

Controller

yellow

alarm

(Refer

menu

check

safety
MUTE

check

LED

Probe - Push

(2)

high

duty

temperature

LED

button

(Alarm

setting

calibration

to

Section

number A (Refer

display

temperature

b.

relay

button

(engineering

display

temperature

Head

select

on

IW702

temperature

Head - Check

MANUAL

and

perform

plug

with

HEAT

CONTROL

Servo

Controller.

control

Check

Sequence.

Head.

Controller.

SERVO

SERVO

cycle

and

shows

time

reads

the

mode

LED's.

control

temperature

LED

control

audio

on.

Mute).

(Refer

to

(34,

36

degrees).

3.0.2).

to

horizontal

control!

out (30

and

check

test

F).

38.0 + 0.2
control

MANUAL

Servo

control

MANUAL

MUTE - Check

mode

tests

(1)

two

1500

Ohm

turned

fully

clockwise

Check

all

green

LED

green

fully

anticlockwise

alarm

off.

fully

clockwise

Section

Section

to

Remove

Controller

LED

Check

bars

fully

90

seconds

for

safety

degree

fully

CONTROL.

fully

anticlockwise

mode

on,

to

(o)

on

3.0.1).

software

3.0.3).

display
duty

1%

resistors

fully

(37).

LED's

flash

on.

LED

on.

LED

and

(37).

Check

version

(if

not

Refer

clockwise.

indicated

relay

reset

34.5

°C

Test

(mute

clockwise

is

on.

LED

off,

blanks - no

cycle

LED

the

[W703

wired

clockwise.

alarm

(32).

audio

on.

temperature

at

number

to

Section

Plug

|

on

display).

and audio

Probe.

alarms

if

(37)

and

(32) - check

duty

cycle

alarms.

on.

Infant

Warmer

in

circuit.

beeps.

Check

On

IW703

control

2.

3.2).

in

34.5

°C

alarm

desired).

plug

in

high

LED

off

On

Head.

display

Test

cessation

the

34.5

alarm.

(016

the

[W703

This

is

Infant

knob

Probe

°C

test).

IW702/1W703

Technical

Manual # Revision E #

Issued

1/07/94

page

14

3.2

3.2.1

IW702

There
Refer

carried

to a horizontal

On
display
transition.

38 °C

(a)

(b)

(с)

(d)

Servo

is

only

one

to

Sections

out

and

bar

accomplishing

and

again

Over

Temperature

Enter

engineering

Push

the

Servo

'A|

|||"

Back

off

VR3

Exit

through

to

indicate

Controller

temperature

1.7

set

exactly.

display.

this

adjust

to

slightly

engineering

38.0 + 0.2°C

Calibration.

and

2.3.2.)

transition,

for

test A (Refer

TEST

button

horizontal

to

calibration

The

correct

the

Protection

'A==".

return

test F and

approximately 1 second

adjustment

This

is a critical

setting

back

the

horizontal

Calibration.

to

Sections

and

adjust

to

the

vertical

check

point

control

display

3.0.1 - 3.0.3).

VR3

that

to

perform.

adjustment

is

where

(VR3)

to

ensure

so

the

display

display

the

displayed

after

related

the

off

slightly

that

just

'A|

| |

|'

message

pushing

(38

°C

display

the

changes

and

TEST

Over

Temperature

to

patient

just

changes

to

return

adjustment

from

repeat

step

'Prb'

changes

button.

safety

and

from a vertical

to

the

vertical

in

on

the

vertical

bars

b.

through

Protection.

must

be

bar

point

of

'---'

IW702/IW703

Technical

Manual

#

Revision E #

Issued

1/07/94

page

15

4.0

Servicing

During

window
and

stop

the

count

than

256

indicated.

While

operating
present
maintain

Some

of

with

an

Error

Code

Ec

En

b-1

*|

b-2

*|

EXx

Prb | Temperature

E20 | Twin

E30 | Failure

E31 | Failure

E32 | Incorrect

Information.

operation

an

of

exceeding
an

on

pin 3 of

the

explanation

Failure

Toggling.

Checksum

Memory

Mute

Test

(only

|.

Where X = O through

multiplexer

Where x = 0 or

overflow

Or,

8000

within

test.

Or,

Calibration.

if

the

microprocessor

error

condition

the

integration

certain

underflow

pins 8 and 9 of

error

to

button

button

if

skin

thermistor

Ohms.

probe

2%

of

of

open

error

normally a square

U2-A

low.

indications

of

the

possible

Explanation

establish

error.

test

error.

stuck

stuck

down.

sensor

stage

where

u,

error

or

underflow

sensor

resistance

mismatch. Thermistors

tolerance.

isolation

isolation

circuit

in

Analog

38

will

be

flagged.

ramp

from

limits

generate

is

generated

wave

Ul-C.

automatic

down.

not

indicating

not

relay

relay

heater

°C

which

cause,

plugged

7,

indicating

error

plugged

not

drop

to

reset

circuit.

Overtemp

This

can

error.

U3

does

U14-A

an

and

of

the

be

displayed

and

Watch

in)

occurred.

ADC

in.

between

not

out

self

after

not

receive

an

expected

In

particular

and

error

should

the

Watch

corrective

Dog

200 ~ |

test. | Check

self | Check

also

controls

message.

the

same

period

Dog

on

Check
Toggling

Check

Check

Free
Free

See

Plug

Check

between
Clean

jack

thermistor
if

after
Check
Section

approx.

Check

Section

Check

Check

Section

the

RST

the

When

count

as

Toggling

the

[W702

actions.

for

signal.

possible

possible

or

replace

or

replace

Explanation.

in

Temperature

thermistor

200 ~ 8000

jack

socket,

E20

still

for

approx

38

°C

3.2.1.)

for

55

38

°C

3.2.1.)

elements

calibration

3.2.1.)

interrupt

6.5

interrupt

counter

the

count

exceed

the

Watch

plug,

resistance

exists,

1solation

isolation

seconds

16128

mains

signal,

Servo

Action

Dog

failure

failure

SW2.
SW1.

resistance

check

check

thermistor

discard probe.

relay

55

seconds

Overtemp

relay

from

Overtemp

for

open

of

within a given

which

in

U6

will

recorded

an

overflow

power

supply

sourced from

Controller

Clock

and

of

U5

EPROM.

of

U6

RAM.

Sensor.

for

Ohms.

for

faulty

resistances.

not

within

dropout

from

initial

Calibration.

RL]

reset

initial

Calibration.

circuit.

38

°C

Overtemp.

marks
in

the

by

U6

U6,

are

listed

Watch

each

bead

contacts

2%

tolerance

prior

power

(Refer

after

power

(Refer

If

so,

time

the

start

event

is

error

should

should

below,

Dog

in

If

to

reset

on.

on.

replace.

(Refer

of

less

is

be

or

*

These

error

codes

IW702/IW703

refer

to

the

version

Technical

2.5

software

Manual

only.

*

Revision E #

Issued

1/07/94

page

16

Other

Error

Conditions:

If

the

display

remains

crashed
If

optoisolators
If

IW702

or

during

on

pushing

Servo

failed

the

U8,

Controller

to

initialise.

start

routine,

U9

the

TEST

blank

and

Check

the

and

U16.

button a 'Prb'

PCB

(Refer

only

the

for

display

error

to

Section

high

temperature

Watch

fails

to

continues

Dog

count

3.2).

red

Toggling

past

to

display,

LED

is

signal.

'000',

check

check

on,

then

the

Check

status

isolation

calibration

microprocessor

of

EPROM.

power

supply

of

VR3

on

rear

has

or

of

4.1

4.2

Option

A

back

*

Overheat

The

100%

be

To

commences

uncontrolled
45

Selection.

number

of

the

Options

PCO
PCI

PC2
PC3

PC4

PCS

These

options

OVERHEAT

duty

silenced

determine

to

75

seconds

of

operational

Servo

Controller

Pads

Open

ISO

Draft

30

min.
monitor
Manual

Single

N/A

refer

Alarm.

ALARM

cycle

or

the

by

turning

which

immediately

duty

cycle

after

functions

PCB.

Standard

warm

mode.

alarm.*

Thermistor

to

version

on

operation

the

[W703

fault

caused

it

is

of

the

switch

on.

can

Alarm.

up

in

servo/man-

No

Unmonitored

Temperature

2.5

software

the

[W703

of

the

Infant

the

the

overheat

warmer

be

optionally

only.

Infant

mechanical

Warmer

alarm,

if

protector

head

then

selected

Sensor.

Warmer

overheat

Head

the

power

the

alarm

Pads

Continuous

Twin

Head

power

is

which

will

by

linking

Joined

15

min

warm

15

min

unconditional

Manual

alarm.*

Probe

is

enabled

protector

switch

off.

again

turned

has

open

not

be

the

pads

of

gliding

audio

up.(servo/man

Unmonitored

(Two

thermistors

either

by

H1.

The

audio

on

and

circuited.

enabled

before a delay

Port

alarm

the

the

If

the

PCO - 5

tone.

monitor

sensor).

detection

alarm

can

overheat

fault

of

on

the

only)

of

only

alarm

is

the

about

a

The

overheat

the

[W703

key

is

before

Before
such

as

heaters.

protector

Infant

ideal

and

attempting

resetting,

restricted

IW702/IW703

Warmer

using a moderate

to

reset.

the

1W703

ventilation

reset

mechanism

Head

Infant

Technical

radiant

of

the

is

heater.

upward

Warmer

[W703

Manual

accessible

It

can

pressure.

Head

should

Infant

Warmer

X

Revision E %*

through

be

reset

Allow

be

the

small

by

inserting a thin

at

least 5 minutes

examined

Head

or

noticeable

Issued

hole

for

about

some

1/07/94

50

mm

shaft, a 2

for

the

cause
damage

of

to

head

the

to

the

the

mm

rear

of

Allen

to

cool

overheat,

radiant

page

1/

4.3

Skin

Temperature

If

using a twin

should

be

Although

conductors

the

thermistor

If

the

skin

been

handled,

sensor

together
between
resistance
following

Where

ambient

Measure
Measure
Measure

Thenx = y

R =

Sensor

thermistor

carried

out

the

processor

in

the

sensor

beads.

sensor

has

use

an

with

the

and

using

the

chart

resistances.

Path A -
Path B -
Path A - B =

=2/2=R

resistance

NN

Test

temperature

every

three

program

cable

been

at

accurate

thermometer

40

°C.

over.

C =

C =

at

the

thermometer

(Probe).

months

checks

are

shorted

ambient

thermometer

From

Now

x

y

2

sensor

identifiable

to

check

for

equal

circuit

to

one

another

temperature

may

the

using a digital

(tolerance < 2%)

temperature

for

to

determine

be

placed

thermometer

by a blue

for

internal

paths

it

or

if

there

at

least

10

the

ambient

in a container

reading

Ohm

meter

(refer

to

Section

connector

shorts

in

does

not

are

symmetrical

minutes

temperature.

of

warm

determine

(0 - 10000

4.4).

C

plug,

the

sensor

determine

and

the

water

the

correct

Ohms

A

the

following

head

or

cable.

if

the

individual

partial

shorts

sensor

end

has not

Alternately

at a temperature

skin

sensor

range)

note

test

of

the

the

4.4

Probe

Temperature

ANA

versus

Temperature

(°C)

20
21
22
23
24
25
26
27
28
29

Thermistor

Resistance

(Ohms)

2812.8

2688.9

2571.8

2459.2

2353.3

2250.0

2155.8

2064.4

1976.6

1893.3

Resistance.

Temperature

(°C)

30
31
32
33
34
35
36
37
38

39

B

Resistance

(Ohms)

1814.4

1739.2

1667.2

1598.2

1532.9

1470.6

1411.3

1355.0

1301.0

1249.2

IW702/IW703

Technical

Manual

№

Revision E %

issued

1/07/94

page

4.5

[W703

Infant

Warmer

Head

Circuit

Diagram

043

18:

040

571.

<

cus

wurst

IW702/IW703

Technical

Manual # Revision E *

Issued

1/07/94

ΜΗ
ONTRMEM
PROTECRA

(100)

VEL

&

DIVISION

ELECTRONICS

PAYKEL

L

page

19

4.6

IW702

Servo

Controller

Circuit

Diagram

043

040

567

Sheet

1.

017

1N4002

DIS
1N4002

U7

MMS451

sop

o!

BC5478

UID

74HC02

10UF

10uF

TP2

ov

+5\

/16V

144148

1N4148.

D1

1N4148

D

4

D3

144148

74HC132N

920

74HC132N

U2E

74HC132N

2

=

Cit

/16v

+

1
I;

v

G

d

+»

や

о

i

v

о

tn

D8

D7
SERVO | POP

D29

i

<=

o

“J

C1

22PF

U3

8085АН--2

y

A[08:15]

CTRL{00:04]

S.

DRAWN
SURTEES

00NF

C4

AD{

00:07)

ua

74LS373

U2C

74HC132N

7

HEALTHCARE

FISHER & PAYKEL
25

CARBINE

RD,

P.O.

BOX

14-348

AUCKLAND,

NEW

PH

(649)

570-5655

DRAWING

043

040

PANMURE.

PANMURE,

ZEALAND.

FAX

NUMBER

567

102

DIVISION

ELECTRONICS

(649)

570-9500

U1C

Q16

BC5478

Q2

805478

TELEX

DUTY

/RESET

MAN

/SERVO

/OVERTEMP

SERVO

LED

RIAC

CNTAL

J7-4

i

ov

LTD

NZ2995

SHEET

1

OF

2

IW702/IW703

Technical

Manual # Revision E %

Issued

1/07/94

page

24

5.0

5.1

Spare

IW703

Ref.

l
2
3

4

5

6

7

8
9

10

11

12

13

Parts

Infant

Description

Lamp-14V
LensBlue

Fuse5A20x5mmguickacting(for230V)...........................................

Fusel0A420x5mmnfastacting(forll5V).............................................

Transformer
Transformer

PCBAssembiyIW703Complete230V..............................................

PCBAssembiyIW703Completell5V.....................................

Lamp

ReflectorandHeaterAssembiy230V
Reflector

Cover
Knob
Mains
Mains

Mains
Plug

Cable

ClipRetainer.....................................

Fuse1A20xSmm

Lists.

Warmer

Fluorescent

Light

Moulded

Power

Power

Power

Mains

Grip

Head - Spare

.4

AssemblyIW703230V
AssemblyIW703

and

Heater

.se

Control.............................

CordIW703

CordIW703

Cord

3-Pin

Type...

P

-

18W

Assembly

IW703

Clear

.ee

Grey

230VNZ/Aust.............

115V

Free

Top

models

Parts / Exploded

λνκκε

εκ

heh

06

eee

eee

eee

.Ne

113V

...................................................

120V

iii

i

eee

(no

plug)........................

eee

ss

иене,

Diagram.

ολκνε

κκ

καλα

ri

κνλλλλλ

εαν

eee

eee

nete

nene

κε

een

teké

ne

κλαν

e

Part

424040049
424040042
348060013

999830011

043040551
043040552
043040571
043040610

424040055

ee

648040089
648040100
693040380
693040285
095428128
095428208
095428248
341040434
647040117
625060013

999830001

No.

Lexan
233201392
233201443

(Eng)
(Spa)

IW702/1W703

Technical

Manual # Revision E #

Issued

1/07/94

page

25

5.2

IW702

Ref.

EM

&

Ch

Servo

Controller - Spare

Description

Fuse

lA

20XS5Smm
SkinSensorProbe

ScrewM6x10(AllenS/S).................................

Knob

Moulded

PCB

AssembiyIW702ZAEU

ο»

Control

/

q

Parts / Exploded

..................................................

ServolComplete

ds

一

Diagram.

................................

1o

ο

一

ses

一

ee n ee

0

0.000
serra

en

|

ον

ont}

=$

Part

No.

99983000

8001
614040254
693040285

043040846

1

W007

3

Cr

ュー

|

SERVO

WTO2

¿Poy

E

F

ους

>

ή,

U

эм

“YY:

x

TEMPERATURE

CONTRO,

스

—

ar

CONTROLLER

L

<

wo =

MODA

=

or

0 A tae

SS

ee,

‘See.

PET

00

na a HO

dh

Ὁ

ποσα

er

a

о

o

at

—

|

Lexan

233201393

IW702/IW703

Technical

Manual * Revision E *

Issued

1/07/94

page

26

IW817

Ref.

]
2
3
4
5
6
7

8
9

10

11

Infant

Radiant

Description

CastOT
Plus

Kectangujar
ScreewM6oXxiI2(AllenS/S)
Saddle

12mm

Screw

M4

SaddleYS..............................

Screw

M4 X 12
KnobClamp
Screw

M4X6

Screw

M6 X 10

Inmfant

Warmer

Warmer - Spare

Light

GreV

X25

ooooooocccccococcconcnccncconno

.........................................».

esasen

(Allen

S/S)

Head

Parts / Exploded

................................

rc

0 0 K 0 S R K K K

déesse

rro

no

raro

Diagram.

ses

esse

eee

esse

rcnc

ano

ronnccccanarocoro

esse

ss.

n

se.

esasen

нени

нь

Part

No.

665040007
693040615
614040255
647040115
614040193
647040114
614040195
651040144
614040194
614040254

se

IW703

1W702/1W703

Technical

Manual # Revision E #

Issued

1/07/94

page

28

5.5

iW820

Infant

©

000

©

d0e00

000000

Care

Centre - Exploded

Diagram.

|

a

НЯ

V

M

a

19

©

|

VU

e

|
VD

nů

Wi

IW702/IW703

Technical

Manual

#

Revision

E

#

Issued

1/07/94

page

29

6.0

6.1

Spare

IW703

Ref.

1

3

4

5

6
7
8

9

10

11
12

Parts

Infant

Description

Lamp - 14V

lensBlue........................................

Fuse5A420X5mmguickacting(f0r230V)...................................

Fuse

Transformer

Transformer

PCB

PCBAssembiyIW703

Starter
Lamp
RefletorandHeater

Reflector

Coverlight........................................

Knob

Lists.

Warmer

10A

20x

Assembly

Light

Fluorescent

and

Moulded

Blue

models

Head - Spare

5mm

fast

AssembiyIW703230V.......................................

AssembiyIW703115V.....................................

!W703

Complete

Complete

230V

13W

18W

Assembiy230V

Heater

Assembly

Control......................

Parts / Exploded

000000000

acting

(for

115V)

...................

230V . 2 2 0

1l5V....................................

.................................

.....................................

115V

..........

P

enes

eee

2...

erre

Diagram.

이니 이 다 이 워 이

erre

eee

eee

Lc

res

ee

미 이 이 이

esset

se

ken

348060013
999830011
043040551
043040552

이

043040571
043040610
999890022

693040380
693040285
095428099
999830001

IW702/IW703

Technical

Manual * Revision E *

Issued

1/07/94

page

30

6.2

IW702

Ref.

+

WN

N

Servo

Controller - Spare

Description

Fuse

IA

20X5mm

Skin

Sensor

Probe

ScrewM6Xx10(AllenBlack).................................

Knob

PCB

Moulded

Assembly

Control

IW702

eee

Servo

Parts / Exploded

Controller

Complete...........................

Diagram.

eee

ee

nan

Part

999830001

8001W007
614040175
693040285

043040567

ω

4

b

No.

一

一 @

IW702/IW703

Technical

Manual % Revision E #

Issued

1/07/94

page

31

6.3

1W817

Ref.

Infant

Radiant

Description

Plug

Rectangular

Screw

M6 x 12

Saddle

12mm

se

Knob

Clamp

Screw

M4x6

Screw

M6 x 10

Infant

Warmer

Warmer - Spare

Black

Arın

sas

Mk...

$

ee

OAK.

(Allen

Black)

MA

Head

ооо

Parts / Exploded

o...

-PH

ооо

........

s.a.

eee

ii...

оао

ei...”

OŘ

eee

AAA...

ооо

Diagram.

Part

No.

IE...

оо

ооо

ооо

ооо

NEE

E

ACC

ооо

A

E a a

осо

aa

nu

693040393

ｌ

614040188
647040115
614040193
647040114
614040195

à

651040144
614040194

dd

11

IW702/IW703

Technical

Manual

*

Revision

E

*

Issued

1/07/94

page

33

6.6

IW818

Infant

Resuscitation

Centre - Exploded

Diagram.

4

©
©

1

IL
(©

q

A

=)

ザー

y

e

А

-

un

3

©

©

IW702/IW703

Technical

Manual

**

Revision

E

*

Issued

1/07/94

page

34

6.7

IW820

Infant

Intensive

Care

Centre

-

Exploded

Diagram.

IW702/1W703

Technical

Manual

#

Revision

E

#

Issued

1/07/94

page

35

7.0

Product

This

change

changes.

Date

25/01/91

22/04/92

22/09/93

30/11/93

8/12/93

24/2/94

Change

history

details

Refer

also

to

change

Change

Number

0608

0986

1697

1807

1824

1895

First

91LA0001

92KA0078

|

9302AEU00071

9303JEU00111

93LA0182

9303

AEA00127

94LC0001

9303JEU00079

History.

changes

panel

serial

number

affected

|

|

|

which

may

have

significance

on

circuit

diagrams.

Model

IW703A

IW702A

|

IW702AEU

IW703JEU

IW703A

IW703AEA

IW703J

IW703JEU

|

Replaced

118°C.

|

Introduction

Features:

Error

relay

incorrect

Addition

successful

servo

Amendment

during

Amendment

Button

|

Change

Introduction

Features:

Unconditional

alarm

plus

indicate

Warm

minutes
warmup

alarm

Addition

during

gives

Amendment

selection

Manual

|

Resistor

|

Change

DA

250%.

Add

resistor

to

[W703

for

servicing.

thermostat

of

Version

message

test

analog

selection

38

and

colour

while

12

minute

imminent

up

(was

and

via

programming

initialisation.

'b-1'

of

mode

R31

fuses Fl

J

routine.

38

of

short

button

buttons.
to

°C

Overtemp

to

38

Exit.

from

of

Version

15

in

unmonitored

intermittent

time

in

30

minutes).

no

unmonitored

of

error

and

stuck

to

initialisation

Manual

during

changed

and

R47

(18092)

models

'E32'

latching

shutdown.

Manual/Servo

only.

It

does

Comments

93°C

(H1)

2.4

Software.

added

This

error

directly

°C

overtemp

audio

pulse

for

Engineering

Calibration

°C

Test

Routine

blue

to

grey.

2.5

Software.

minute

codes

TEST

Monitor

the

from

F2.

Optional

port

PC1.

for

A

stuck

button

routine.

10kQ

Were

capacitor

MANUAL

MANUAL

warning

MANUAL

routine

or

not

include

with

thermostat

to

the

isolation

indicates

calibration.

to

indicate

IW703

‘stuck'

MUTE

Test

and

via

beep

modes

30

gives

to

Unmonitored

to

820Q.

SA

125V

C16

(100nF)

manual/

Routine

Exit.

mode
mode

now

minute

mode

buttons

button

'b-2'.

enable

now

all

Test

to

15

IW702/1W703

Technical

Manual

*

Revision

E

%№

Issued

1/07/94

page

36

7.1

Serial

8

Model

KA

12

digit

LA

LB

LC

digit

Number

format

IW703A

IW703Z

IW703J

IW702A

format

Explanation.

YEAR

Country

YEAR

MODEL
\
92

\

93

|

AA

Australia/Europe

NZ

USA

Australia/Europe

MODEL

XX

XXXX

CODE

| |

UNIT

ААА

/

NUMBER

Volts
230V

230V

115V

10V

SERIAL

XXXXX

NUMBER

/

Model

Number

THREE

First

A

02

03

17

20

J

Model

[W702

IW703

[W817

[W820

LETTER

Letter

|

Voltage

230V + 20V

115V + 15V

Type

CODE

|

Second

E

Letter
Front

English

Panel

Language

|

Third

A

K

U

V

Letter

Customer

Australasian

as

per U but

Universal

Wall

Mounted

CKD

1W702/1W703

Technical

Manual

*

Revision E *

Issued

1/07/94