Fisher HC500 User manual

TECHNICAL

MANUAL

RESPIRATORY

HUMIDIFIER

HC500

Revision

March

C

1998

MODEL

Fisher

Fisher & Paykel

Auckland,

Healthcare

New

Zealand

&.Paykel

HEALTHCARE

Ltd

National

Office:

Fisher & Paykel

P.O.

Box

14348,

Auckland,

Telephone:

Facsimile:

Part

Revision C March

Technical

Fisher & Paykel

Specifications

New

Number

Manual

185

Healthcare

Panmure

Zealand

+64-9-574 +64-9-574

041

077

1998

for

HC500

Healthcare

without

notice.

Lid

0100 0158

Respiratory

have a policy

Humidifier

of

continued

product

improvement

and

reserve

the

right

to

alter

Changes Description

Performance

Maintenance

for

Revision

of

change

test

shortened

procedure

C

shortened

Section

4.0

App.

B

TABLE

OF

CONTENTS

page

1.0

11 12 13

13.1

1.3.2

1.3.3 14

14.1

1.4.2

1.4.3 15

1.5.1

1.5.2

1.5.3

1.5.4

1.6

1.6.1

1.6.2

1.6.3 17

1.7.1

1.72

1.7.3

HC500

Standards

SERIES

Electrical

and

Temperature

Set

Point

Controls

and

Adjustable

Indicator Push

Switches

Basic

Operating HC500 Power HC500 Power

Alarms

in

Up

in

Up

in

Heater Wire Temperature Connectors Audio

Alarm

Alarms

in

Non

Temperature Connectors

Audio

Alarm

GENERAL

Specifications...

Approvals..................

Control

Sensing

Display.

Temperature..

Indicators

temperature

LEDs..

Modes

Heater

Seguence

Non

Sequence

Alarms

Alarm

Heater

Alarm

…

Wire

Heater

Mode

Wire

Alarm..

Controls

Mode.

Heater

Wire

Non

Heater

...

Mode...

SPECIFICATIONS

erre

iene

Wire

Mode

..

Wire

Mode

.

Mode.......

eee

re

nie

re

river

eee

are

see

iene

00000

zeeeee

receive

rece

1

re

nerina

neeeeeneenenenicnenzcnne

1

1.8

1.8.1

1.8.2

2.0

2.1

2.1.1

2.1.2

2.1.3

2.1.4

2.1.5

2.1.6

2.1.7

2.1.8 22

2.3

3.0

3.1 32

Safety

Protection Temperature Microprocessor

CIRCUIT

OPERATION

[SI

Control Input

Analog Processor Power

41

Thermistors

Analog

to

Line

°C

Comparator

Heaterplate

Watch

Dog

Power

BOTd

Probe

Temperature

CALIBRATION

Equipment

Calibration

Required

Procedure..

Deviations.

Watch

Switches

Digital Control

Converter

U3

Interrupt

Over

Temperature.

USb,g

siennes

versus

Dog...

U8

0106.

Thermistor

and

U10

U9

..

b,d,e

..

Resistance...

ss

AAA

. :

néé

„10

.

^

=

-124-2 E

00 00

00

8 9

10

4.0

4.1

PERFORMANCE

Performance

Test:

CHECK.

Heater

Wire

Mode

κοκ

ονοσσν

ων

11

4.1.1

4.12

Equipment Test

Procedure

Required...

4.2

4.2.1

422 43

43.1

432

5.0

5.1

5.1.1 512

3.2

5.3

54

5.4

5.5

5.6

5.6.1

5.7

Performance

Equipment

Test

Procedure

Dual

Probe

Temperature

Eguipment

Test

Procedure

SERVICING

Printed

Fault

HC500 Component Component

Link

Programming

Circuit Control Power

PCB

PCB...

Location

Circuit

Layout - Revision H PCB Layout - Revision J PCB

Pad

Locations

Circuit

Diagrams - Revision H control

Test:

Non

Heater Wire

Required...

Test.

Reguired

NUN

INFORMATION

Board

Removal

.

RR

E

Layout

Control

Block

for

Programming

OptionS

Mode

Diagram

eenennennenesnieenneses

uen

nee

..cocnacacononnorionacionocianonrnconerncinonon

Control

Options - Revision H and J PCB

PCB

canino

ornrncr

nie

reereeeien

ieri

noes

veve

sieve

arc

ran

roca

aaror

zi

rinzenezezioe

se

see nia

rieneore

nno

rivee

acres

14

sa

ReaReesAmENee

aora

ona

eeeerieneeonznninnee

zine

riva

reni

14

16 17

arinnennos

13

ee

19

nenenene

21

5.7

5.8

5.9

5.9.1

5.9.2

5.10

5.10.1

5.11

5.11.1

5.12

5.13

6.0

6.1

6.2

Circuit

Diagrams - Revision H power

Circuit

Сисий Electrical

Diagrams - Revision J control

Главтапзз - Кеу

Parts

List Control Power

Mechanical

Exploded

Heaterplate

Exploded

РСВ

Power

PRODUCT

Model

Serial

Board

Parts

Diagram:

Assembly

Diagram:

14епййсаноп

PCB

Harness

CHANGE

Number

Explanation…...........

Explanation

Components..

ComponentS

List

ПЛаетаиа..........

Connection

Parts

APPENDIX A MISCELLANEOUS

PCB

dires

оп Т ро\’ег

РСВ..................

еее

ионигиииионииотиитититиииниаититининитиииизитнвиьнииииттитиитиоититурнии

veeererierzceneeeenenienseonieeneree

HC500

Mechanical

parts...

List

Heaterplate

HISTORY

Assembly

еле

Diagram

(Inverted

иионинитииоиоиоининиионинииценотивовютииюншииитирниититинизииншивиянититьлитииитьиииититтит

nent

View).

inner

rene

reeere

unir

recco

rieee

onere

re

ree reo

ennemies

penie

renne

renze

nera

eee

eeeeeezinnee

22

23

24

nere

nen

verenieoneeceeeiizienneee

32

33

34

34 34

35

Al

A2

A3

A4 A5

А5.1

Calibration

Service

Glossary Error

Error

Mode

Menu

Display

of

Abbreviations

Codes

Messages

ee

...

Functions

rennes

APPENDIX

B

MAINTENANCE

SCHEDULE

38

Bi

B2

B2.1

Recommended Recommended

Electrical

APPENDIX C PROBLEMS

,

CI

cil Low

C.12

C.13 C.14

C.1.5

C.1.6 C.1.7

C.1.8

C.1.9

C.1.10

C.1.11

С.1.12

ο

Troubleshooting

Temperature...

High

Temperature...

Temperature Excessive

Low

Humidity

Connectors

*Power-On" ‘see

manual’

Breathing

Error

Code

Chamber

No

Audible

HC500

Fault

Maintenance

Safety

Tests.

WITH

Guide

For

Fluctuating

Water

In

Circuit

Alarm

Indicator

Circuit

Water

Flow

Leak..

Displayed

Leak

Sound

With

Chart

Schedule Schedule

OPERATION

The

HC500

..

Off.

On....

Alarm

Indicator

For

No

Go

...cooconacacicnconnonenonacinmennarennoraroucronecncarinnararo

rr

onarorncoronras

orar

nor

nrn

rr

rasero

38

Checklist

Respiratory

Condition

Humidifier.

inner

40

asenceé

44

1.0

HC500

SERIES

GENERAL

SPECIFICATIONS

1.1

1.2

HC500

Supply

ELECTRICAL

Supply

Current

Heaterplate

STANDARDS

Designed

to

conform

AND

Classification:

SPECIFICATIONS

Supply

(Heated

(Non-Heated

Heater

Wire

Overheat

APPROVALS

to

the

Class

1

Voltage:

Frequency:

wire

mode):

wire

mode):

Capacity:

Water

Heater:

Protector:

requirements

230+20V

115Y 100+10V

50

to

60

0.8 A maximum

1.5 A maximum

0.5 A maximum

0.9 A maximum

60

W

85

W

Operates

of:

UL2601-1,

Hz

at

118 + 6

CSA-C22.2

at at

at

230

115V

230

115

°C

V

No.601,

IEC601-1,

AS3200.1

1.3

1.3.1

1.3.2

TEMPERATURE

PID

(Proportional,

TEMPERATURE

Temperature response

TEMPERATURE

Three

Range 5 to

Accuracy

measurement

temperature

digit,

14mm, 7 segment

80

25

to

Type

B

Drip

Proof Continuous Not

to

be

used

Operation

in

CONTROL

Integral & Derivative)

SENSING

using

probes, located

DISPLAY

LED

°C.

Below 5 °C

45 + 0.5

°C

(tenths

displays

the

presence

control

standard

at

the

(Light

“Lo”.

are

not

of

flammable

of

Heaterplate

characteristic

patient

Emitting

Above

displayed

thermistors

end

of

the

Diode)

80

*C

unless

displays

anaesthetics.

and

Heater

(YSI

delivery

tube

display.

“Hi”.

in

the

service

Wire.

400

compatible)

and

at

menu).

mounted

the

humidifying

in

fast

chamber

outlet.

1.3.3

SET

POINT

TEMPERATURE

Temperature

selection

by

pointer

knob

on linear

scale.

See

§1.4.1.

1.4

CONTROLS

AND

INDICATORS

1.4.1

ADJUSTABLE

Heater

Selects

The

range

To

facilitate

segment The

Chamber

Non

Selects

linear

Unlike

However

TEMPERATURE CONTROLS

Wire

Mode.

airway

controlling

depends

adjustment

LED

display.

on

the

of

The

temperature

Heater

Wire

Mode.

the

HP

(Heaterplate)

scale.

the

heated

wire

mode,

the

HP

set

temperature

temperature.

offset

temperature,

Offset

-40

the

temperature

display

is

continues

controlled

controlling

the 7 segment

can

be

Adjustment

selected

°C —1.0 —2.0

-3.0

control,

to

flash

at a fixed

temperature.

LED

displayed

is

over a linear

by

links

Range

32 33 34 35

when

rotated,

for 5 seconds

offset

from

The

range

display

by

is

accessing

on

the

°C

to

39

to

39

to

39

to

39

the

airway

of

not

activated

the

scale

with

control

actual

after

PCB

setting

control

temperature

adjustment

when

Service

menu

resolution

(see §5.6).

is

flashed

rotation

setting.

is

from

45

the

control

(see

appendix

of 1 °C.

on

has

ceased.

to

80

°C

knob

the

7

over

is

rotated.

A2).

a

142

Note:

An

option

fixed

knob.

This

INDICATOR

LEDs

Connectors

alarm

Temperature

the

Under

relevant

alarm

minute.

See

Manual

This

alarm

indicator,

apart

detects a microprocessor

Power

On

Green

Used

to

indicate

Heater

Wire

On

Used

to

indicate

available

will

Red

stop

LED.

Red

LED.

alarm

is

inadvertent

conditions

(Humidifier

from

flashing

failure.

LED.

power

has

LED.

power

has

to

pre-adjust

Failure)

momentarily

been

tumed

been

turned

the

set

adjustment

these

indicator

Red

LED.

on

to

the

on

to

the

temperature

of

the

set

temperature.

LEDs

will

at

turn

on,

will

humidifier.

heater

wire.

and

replace

the

individually

only

be

enabled

normal

flash

at a rate

if

control

the

watchdog

of

knob

100

with

a

flashes

per

circuit

1.4.3

PUSH

SWITCHES

Mute

Button.

A

momentary

Pressing display.

the

push

mute

will

button

disable

for

1.5

an

audible

seconds

alarm.

will

The

cause

normal

the

airway

mute

time

temperature

delay

to

is 3

minutes.

be

displayed

on

the 7 segment

Using

the

mute

button

On

every

initial

e © Service Button.

This

is a

hidden

for

more

information.

+

Heater

Wire

Button.

This

toggles

either

will

light

the

operating

when

this

in

conjunction

push

of

the

mute

button

used

for

accessing

HC500

into

either a Heated

position a single

switch

is

latched.

with

the

Service

button, a momentary

the

service

Wire

or

Non

audio

beep

indicates

button

enables

audio

beep

and

calibration

Heated

successful

entry

to

indicates

function

menu.

Wire

mode.

latching.

The

the

Refer

When

'ON'

service

menu.

operation.

to

appendices

this

switch

LED

to

Ai

the

and

A2

latched

button

in

1.5

1.5.1

1.5.2

If a connector attached

non

BASIC

HC500

The

HC500

both

ends

Heaterplate

when

heated

OPERATING

IN

HEATER

humidifier

of

the

and

with a minimum

The

control

fixed

Power

On

power

All

indicator

two

audible

knob

offset

below

Up

SEQUENCE

up

the

LEDs

seconds.

Then

beep.

alarm

immediately

switching

wire

mode.

MODES

WIRE

MODE

in

Heated

delivery

Heater

of

sets

microprocessor

hose,

Wire

are

condensation.

the

control

this

(the

offset

HEATER

(excluding

the

Temperature

to

non

heater

Wire

by

means

regulated

temperature

is

link

WIRE

watchdog

the

See

Control

follows

mode

the

operation

wire

mode

or

expecting

incorporates a temperature

of a dual

to

selectable,

temperature

maintain

at

the

airway

refer

the

desired

§5.6).

and

MODE

is

tested.

The

‘See

Manual

LED)

setting

is

are

illuminated

displayed

of

this

button,

one

sensing

temperature

the

chamber

Manual’

together

for a further

this

may

to

be

attached

controller,

probe

assembly.

and

outlet

LED

will

illuminate

with

one

second,

be

due

to a heater wire

when

switching

which

monitors

In

this

humidity,

temperature

“8.8”

on

the

within

briefly

followed

temperature

way

the

close

is

maintained

if

successful.

digital

display

by a single

being

from

limits,

the

at

for

at

a

1.5.3

1.5.4

HC500

In

sensor at maximum

:N

the

Non

at

the

humidification

lowered

The

control

mode

is

POWER

On power All

indicator

audible

beep.

NON

HEATER

Heater

the

delivery

of

66

°C.

flow

performance.

knob

sets

80

°C.

UP

SEQUENCE

up

the

microprocessor

LEDs

WIRE

Wire

mode

end

(airway

chamber

In

this

the

control

NON

are

illuminated

MODE

the

HC500

outlet

way,

safety

temperature

HEATER

watchdog

delivery

end)

monitors

is

employed

at

low

WIRE

together

delivery

in a backup

flow

at

the

MODE

is

tested,

with

‘8.8’

temperature

rates

heaterplate,

the

on

is

maintained

temperature

safety

(below 5 litre/minute)

the

‘See

Manual’

the

digital

to

prevent

mode,

to

maximum

LED

display

by

Heaterplate

any

rise

limit

the

chamber

is

improved

heaterplate

will

illuminate

for

two

seconds,

control

above

at

41 outlet

the

expense

only.

°C.

temperature

briefly

if

followed

The

sensor

to

a

of

in

this

successful.

by a single

2.1.5

Power

A buffered

to

frequency

switching.

this

LINE

sample

ground

source.

of

by

when

facilitating

The

INTERRUPT

the

power

Schmitt

the

trigger

diodes

ADC

supply

USf,

D13

the

generation

is

also

phase

frequency

and

fed

to

D16

are

of a real

synchronised

is

derived

to

the

RST7.5

not

conducting. The

time

with

from

interrupt

clock

the

power

and

also

line

frequency

transformer

of

U3.

Resistor

operating

software

enabling a zero

thus

eliminating

secondary

R68

pulls

determines

crossing

detector

any

via

R56

the

secondary

the

common

and

Q1,

winding

supply

for triac

error

from

2.1.6

2.1.7

41

°C

COMPARATOR

Operational input adjustable low

above

D19,

R55

amplifier

5 is

divider

an

and

temperature

A

watchdog

to

the

non

inverting

of a processor

HEATERPLATE

Thermistor during

Under

HP

normal

certain Programming protection transformer

mechanical

module.

should

primary

cut-out

connected

network

input

temperature

D20,

R61

greater

than

failure,

which input

crash.

OVER

senses

operation,

operating

Control

the

and

must

U10c

is a

protection

directly

R33,

(via

VR4,

of

to

clamp

41

°C

causes

is a high

of

U10c.

TEMPERATURE

the

heaterplate

power

to

conditions

Options.)

electronic

thus

causes

be

manually

Also

control

circuit

connector

R32.

VR4

41

°C.

This

the

bases

of

both

heaters

output

from

This

also

temperature.

the

heaterplate

different

maximum

mounted

system

complete

reset

by

to

sense

J4-1)

is

set

low

output

switching

to

U5g,

ensures

Should

is

discontinued

on

the

fail.

This

shut

down

means

excessive

to

the

airway

during

calibration

(OVHT)

transistors

be

shut

down.

is

communicated

that

both heater

the

heaterplate

mechanical

of

the

humidifier

of

the

reset

delivery

temperature

thermistor.

to

ensure

is

fed

via

the

Q10

and

Q12.

via

isolating

control

circuits

exceed a preset

until

it

cools

temperatures

is a

mechanical

cut

out

is

should a serious

button

located

The

inverting

that

the

isolating

In

this

diode

are

below

this

can

be

selected.

thermal

connected

on

the

underside

rise.

The

input

output

diode

resistor

way,

an

D11

and

clamped

maximum

limiting

cut out

in

series fault

non

inverting

goes

to

an

pin 7 of

UlOc

networks

airway

resistor

off

in

the

R31

event

temperature

temperature.

(See

§5.6,

which

will

give

with

the

power develop. of

The

the

heaterplate

is

2.1.8

WATCH

During

output

fed

this

which or

should

humidifier

To

LED10,

POWER

A protected from

The

U12,

triac,

Doc

operation

port

to

the

charge

square

wave

drives

may

not

fail,

is

indicate

and

BOARD

bridge

rectifier

by a 1

the

voltage

heaterplate

which

and

with

U5B,G

the

PB7

of

U4

pump

be

the

trap

be

successful

and

is

unable

tumed

that

the

also

turns

(D13

Amp

doubling

is

switched

in

tum

C33,

processor

every

circuitry

interrupted

interrupt

is

16.6

C16,

for

input

depending

to

re-initialise,

on

by

deliberately

processor

fuse

off

to

has

the

display

D16)

(F1)

supplies

mounted

network

by a port

switches

form a snubber

triac

continually

or

20ms

D4,

monitored

(power

D5

and

any reason,

of

U3.

This

on

the

nature

it

fails

halting

failed,

the

high

I-C

U7

to

power

on

the

D17,

D18,

pin,

PC4,

Q11

(mounted

network

for

line

C15,

C15

will

high

trap

of

the

in a safe

program

output

blank

the digital

to

the 5 V

circuit

C25.

of

U4

on

the

both

the

for

correct

frequency

which

interrupt).

ensures

discharge

input

forces

fault.

The

mode.

The

execution

of

U5g

also

display.

regulator,

board.

The 5 V

the

control

heatsink).

triac

and

function.

through

that

This

square

13

R3

giving a high

re-initialisation

purpose

and

Resistors

optoisolator.

of

watchdog

waiting

turns

on

Q7

mounted

negative

board

(HPC)

R57,

this

circuit

for

Q3

which

supply

R64

is

done

by

changing

wave

buffered

of

U5g

is

held

hard

output

of

the

processor

is

to

ensure

that

is

tested

every

initialisation

on

the

stabilised

and

controls

limit

lights

heat

sink.

the

via

the

humidifier

This by

the

gate

the

state

by

USb

up.

Should

from

12,

which

may

if

the

processor

time

the

watchdog.

fault

circuit

08,

is

derived

optoisolator

current

to

the

of

is

The

Heater

Wire

optoisolator

control

Heater

optoisolator’s

U13 then

the

HHS

circuit.

board

wire

during to

U4.

signal

U11

(HHC).

sensing

LED

the

Resistor

circuit

(HHC)

which

in

R9

is

performed

by

R52

negative

R67

whether a heater wire

is

turn

is

and

C6

when

cycle

of

prevents

controlled

driven

are a snubber

by

optoisolator

triac

the

false

by

Q10.

Q9

is

on

22Vac

secondary.

triggering

is

connected

triac

Q9

Q10

is

network

U13

and

by

of

the

or

open

which

is

mounted

controlled

for

associated

R51

The

U13

circuit,

directly

the

heater

and

R52

output

of

phototransistor.

and

on

the

from

an

wire

triac.

components.

when

the

triac

the

optoisolator

The

whether

the

heat

sink.

output

Current

is

off.

Diode

(HHS)

software

heater

wire

Q9

is

port

of

is

limited

D21

connects

can

determine

fuse

switched

U4

on

the

through

protects

to

USd

F2

is

open

by

the

and

from

2.3

PROBE

TEMPERATURE

TEMP

(£0.5°C)

0 9

28

29

30

31

32 33

34 35

VERSUS

THERMISTOR

RESISTANCE

(Ohms)

73523 47022

1976.6 18933 18144

1739.2

1667.2

1598.2

1532.9

1470.6

RESISTANCE

TEMP

||

05°C)

36

37 38

39

40

41

44

42 43

60

RESISTANCE

(Ohms)

14113

1355.0

1301.0

712492

1199.6 11523 11073

1064.5

1023.1

5603

3.0

CALIBRATION

3.1

3.2

Calibration

adjustments

This messages

may would

Calibration

unit

EQuiPMENT

+

e

‧

is

facilitated

VR4

calibration

in

the

have

altered

require a calibration

should

has

warmed

REQUIRED

41

°C

calibration

Small

flat

Large

Pozidrive

CALIBRATION

Note:

For

instructions

by

and

VRS,

procedure display)

the

potential

be

checked

or

up.

probe,

blade

screwdriver.

PROCEDURE

on

disassembly

entering a special

the

41

°C

comparator

may

be

carried

if

any

of

the + 5 V rails

the

circuit

out

check.

and

performed

available

in

of

the

Calibration

stage

and

if

the

unit

is

boards

have

or

component

after the

F&P

unit,

unit has

calibration

refer

to

mode

(refer

setting

thought

been

change

been

kit

$5.0,

Servicing

appendix

the

span

to

be

out

replaced

associated

running

(F&P

part

Information.

A1).

There

are

of

the A to D converter.

of

calibration

or

repaired.

with

for

at

no.

900MR548).

(E0x

In

particular

the A to D converter

least

half

only

an

two

to

E7x

any

hour;

error

repair

ie

after

that

the

„=

Plug

2

Gain humidifier

3

With show

4

Using

5

Starting

too

the

6

Using

7

Remove

8

in

access

the

*-1-*

the

far

segments

the

Adjust

the

41

°C

calibration

to

the

adjustment

front

panel.

Service

button

Service

button

with a vertical

the

display

Service

the

VRS

becomes

of

the

all

button

41

°C

calibration

for a display

probe.

potentiometers

(SW3)

held

(SW3)

step

bar

display

all

horizontal

‘8’

display

(SW3)

step

probe.

reading

down

to

“-4-*

adjust

VR4

bars

are

of

equal

to

*-5-º

of zero.

VR4

and

turn on

the

so

the

([|.|j.||.

brightness.

(0)

(Note

VRS,

mains

display

through

this

display

by

removing

power

switch.

changes

8.8.8.

to

reading

to

an

==).

may

the

control

The

Temperature

all

“8”

The

correct

move

board

display.

If

point

by + 2.0

from

the

display

VR4

is

where

over

time.)

should

rotated

all

4.0

PERFORMANCE

These

test

procedures

dismantling

appendix

the

A2).

may

unit.

Performance

CHECK

be

used

to

check

is

monitored

the

operation

during

the

and

test

calibration

by

using

the

of

the

HC500

functions

humidifiers

of

the

Service

without Menu

(refer

4.1

4.11

4.1.2

PERFORMANCE

The

heater

base

EQUIPMENT

Calibration

A Fisher

9

Dual

TEST

For

this

—

REQUIRED

temperature

Cup

(250 ml)

PROCEDURE

test

only

Plug

in a 34.5

Turn

the

TEST:

is

run

kit

& Paykel

HEATER

with

(Part

no

recommended

probe

of hot

water

the

HC500,

°C

test

temperature

WIRE

fixed

inputs

900MR548)

assembly

(>

41

test

probe

and

control

knob

MODE

to

check

containing

reusable

(eg

900MR560).

°C).

and

heater

connect

fully

for

correct

heaterplate

34.5

°C

test

heater wire

wire

the

heater

anticlockwise

assembly

are

required.

wire

(minimum

probe

to

the

humidifier.

and heater

and

(eg

900MRS510

41

°C

calibration

wire

temperature).

control.

probe.

).

Turn

Check

i

ii

iii

(Note

iv

Push

Enter

ii

iii

iv

Run

on the

HC500

the

power

See

manual

All

LEDs

Display

if

the

5.6.1

for

Audio

the

heater

the

service

i

v

Heaterplate

for

at

least

mains

on

sequence:

light

and

digital

shows

set

temperature

how

to

reprogram

alarm

beeps.

wire

button

menu

Temp

Airway

Chamber

10

minutes

power

flashes

briefly.

display

temperature

shows

and

(refer

appendix

control

Offset:

temperature:

maximum

without

switch.

illuminate

(either

32, 33,

35,

it

will

this.)

check

that

the

A3)

setting:

limit.

Record

interruption.

for 2 seconds.

or

34)

need

to

be reset

heater

wire

and check:

32

-1.0,

34.5 + 0.2

this:

for 2 seconds.

to

34

for

the

on

light

comes

or

33

or

34 + 0.1°C

-2.0,

or

-3.0 °C °C

purposes

on.:

(SET)

°C

(OFF) (Air)

of

this

(Ch)

(HPL)

test,

see

section

After

ten

i

Heater

ii

Heaterplate

minutes

wire

:

cold

(feel).

cold.

(<

60

°C).

Turn

10

Enter

i

11

Run

12

After i

ii

13

Disconnect

14

Press

15

Reconnect

16

Disconnect

17

Reconnect

18

Place

the

temperature

the

service

Temp

control

for

at

least 10

ten

minutes:

Check

in

the

heaterplate

Heater

Wire

the

MUTE

the

heater

the

temperature

the

airway

control

menu

(refer

setting:

minutes

Service

maximum

hot

heater

button

temperature

probe

without

menu

noted

(feel).

wire

and

wire

and

probe

end

sensor

knob

fully

appendix

interruption.

that

above

check

that

check

and

into a cup

clockwise.

A3)

and

the

heaterplate

(6v).

Note

that

the

Connectors

the

audio

that

the

Connectors

check

again

check

that

of

check:

39

°C

temperature

the

default

alarm

is

for

the

Connectors

hot

water

(hP)

setting

light

flashes,

silenced.

LED

stops

Connectors

alarm

(>

41

°C).

(SET)

is

approximately

is

100

°C.

and

the

audio alarm

flashing.

and

audio

stops.

the

alarms.

same

as

the

commences.

4.2

4.2.1

19

Check

that

show

the

Note:

The

since

they

20

Remove below

41

21

Go

straight

PERFORMANCE

This

test

checks

EQUIPMENT

Calibration

A Fisher & Paykel

Fisher & Paykel

the

Temperature

current

HC500

are

due

the

temperature

°C

check

to

the

TEST:

that

the

REQUIRED

kit

(Part

light

airway

temperature

may

indicate

to

the

that

the

non

heater

NON

heaterplate

no

900MR548)

dual

humidification

spurious

rapid

change

probe

from

Temperature

wire

HEATER

is

temperature

flashes

and

above

‘EP4’

in

temperature.

the

cup and

light

mode

test.

WIRE

controlled

containing

probe

assembly,

chamber

(eg

the

41

°C.

or

goes

MODE

to

the

HC335)

HC500

similar

watch

off

correct

34.5

°C

audio

alarm

messages

the

temperature

and

the

Airway

temperature,

test

probe

eg

900MR560.

filled

to

the

begins.

on

the

fall.

display

selected

and

41

maximum

The

temperature

display.

When

These

the

goes

by

the

°C

calibration

water

level.

display

can

be

temperature

blank.

“Temp

Control’

probe

should

ignored

drops

knob.

4.2.2

Cup

TEST

PROCEDURE

(Ensure

1

Fill

2

Plug

3

Turn

(250

that

the

in

the

ml)

of

the

heater

chamber

the

34.5

Temp

hot

water

wire

is

to

the

maximum

°C

test

Control

(>

turned

probe.

knob

41

°C).

off

i.e.-

water

fully

clockwise.

heater

ON

level

and

Enter

LED

slide

it

the

is

off)

onto

the

Service

heaterplate.

Menu

and

check:

4

This

i

Temperature

Run

for a further

is

the

end

of

the

Control

30

setting:

minutes,

performance

then

check

check,

80.0

again

record

the

+0.2

the

test

°С

heaterplate

results

(ЗЕТ)

on

the

temperature,

maintenance

it

should

chart , see

now

appendix

read

80 + 1

B2.

°C.

4.3

431

4.3.2

DUAL

PROBE

This

test

is

recommended

as

to

the

accuracy

both

probes

(chamber

verification manner,

depending

thermometer

EQUIPMENT

‧

e

‧

TEST

of

any

probes

on

REQUIRED

Dual

Temperature

Mercury

Cup

(250

Heater

wire

PROCEDURE

reading

TEMPERATURE

to

be

performed

of

the

temperature

and

airway)

temperature,

exhibiting a temperature

the

accuracy

filled

ml)

of

if

using

if

of

would

also

probe

glass

thermometer.

warm

water ( 20

HC500

so

desired.

the

be

to

be

TEST

probe. This

firstly

to

In

mercury

suspect.

tested.

to

in

heater

on

temperature

test

one

another,

the

first

difference

in

the

glass

40

°C).

wire

mode.

probes

allows

the

and

secondly

case,

assuming

of

more

thermometer

at

least

every

operator

than

to

to a glass

that

both

0.7

°C

any

probes

six

months,

compare

thermometer

probes

would

be

not

agreeing

or

the

temperature

have

not

suspect.

within + 1.5

if

there

for

absolute

failed

in a similar

In

the

is

any

doubt

readings

second

°C

of

case,

of

the

1 . Plug

connected.

2

Turn

3

Insert 40°C. with a rubber

4

Place

5

Enter alternate points

6

Check

not

7

Check

the

dual

on

the

both

temperature

As

temperature

the

thermometer

the

Service

between

showing).

the

temperature

exceed

that

probe

HC500

band

menu

the

0.7 °C.

the

chamber

into

the

mains

power.

sensor

gradients

during

this

in

the

(refer

airway

difference

and

HC500

probes

can

test.

water

appendix

and

chamber

airway

Humidifier.

into a container

be

quite

large

alongside

between

probes

the

A2)

and

temperatures

chamber

read

If in

Heater

filled

it

is

recommended

probes

select

and

within

Wire

mode,

with

water

and

allow a minute

‘CP’

(compare

(chamber

temperature

airway probes

1.5

°C

of

the

ensure a heater wire

at a temperature

that

the

two

probes

for the

temperatures

probes)

mercury

option.

as

indicated

thermometer.

is

displayed

by

between

be

held

The

display

with

the

display.

assembly

20

and

together

to

stabilise.

will

all

decimal

It

should

is