HC500
TECHNICAL
MANUAL
RESPIRATORY
HUMIDIFIER
HC500
Revision
March
C
1998
MODEL
Copyright © 1996
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
HC500
Standards
SERIES
Electrical
and
Temperature
Temperature
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
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
10
4.0
4.1
PERFORMANCE
Performance
Test:
CHECK.
Heater
Wire
Mode
κοκ
ονοσσν
ων
11
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
14
16
17
arinnennos
13
ee
19
19
nenenene
21
5.7
5.8
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
Board
Parts
Diagram:
Assembly
Diagram:
14епййсаноп
PCB
Harness
CHANGE
Number
Number
Explanation…...........
Explanation
Components..
ComponentS
List
ПЛаетаиа..........
Connection
Parts
APPENDIX A MISCELLANEOUS
PCB
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
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
Maintenance
Safety
Tests.
WITH
Guide
For
Fluctuating
Water
In
Circuit
Alarm
Indicator
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
Current
Heaterplate
STANDARDS
Designed
to
conform
AND
Classification:
SPECIFICATIONS
Supply
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
at
230
115V
230
115
°C
V
V
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
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
next
is
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
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
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,
pin
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
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
heaterplate
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
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
This
square
pin
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
pin
12,
which
may
if
the
processor
time
the
the
watchdog.
fault
circuit
08,
is
derived
optoisolator
current
to
the
of
is
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
by
Q10.
Q9
is
on
22Vac
secondary.
triggering
is
connected
triac
Q9
Q10
is
network
U13
and
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
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.
screwdriver.
PROCEDURE
on
disassembly
entering a special
the
41
°C
comparator
may
be
carried
if
any
of
of
the + 5 V rails
the
circuit
out
check.
and
performed
available
in
of
the
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
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
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
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:
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
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
the
MUTE
the
heater
the
the
temperature
the
airway
control
menu
(refer
setting:
minutes
Service
maximum
hot
heater
button
temperature
probe
without
menu
noted
(feel).
wire
and
and
wire
and
probe
probe
end
sensor
knob
fully
appendix
interruption.
that
above
check
check
that
check
and
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
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
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
Loading...