Fisher MR850 User manual

Technical Documentation

Fisher & Paykel® MR 850
Respiratory Humidifier

Revision 5.0

5697.500
9036209

Because you care

Contents

General

1 Symbols and Definitions 3

2 Notes 3

Function Description

1 MR 850 Respiratory Humidifier 7

1.1 Humidifier Operation .............................................................................................................. 7

1.2 Operating Modes .................................................................................................................... 8

1.2.1 Stand-by mode ......................................................................................................... 8

1.2.2 Intubated mode ........................................................................................................ 8

1.2.3 Mask mode ............................................................................................................... 8

1.3 Controls .................................................................................................................................. 9

1.3.1 On/off button ............................................................................................................. 9

1.3.2 Mode button ............................................................................................................. 9

1.3.3 Mute button .............................................................................................................. 9

1.4 Optical Indicators .................................................................................................................. 10

1.4.1 Display .................................................................................................................... 10

1.4.2 Humidity alarm (lung symbol) ................................................................................. 10

1.4.3 Warning triangle alarm ........................................................................................... 10

1.5 Setup Indicators (LEDs) ....................................................................................................... 10

1.5.1 Temperature probes ............................................................................................... 10

1.5.2 Heater wire adapter ................................................................................................ 10

K5697500IECIVZ.fm 10.05.06

1.5.3 Temperature probe connectors .............................................................................. 11

1.5.4 Humidification chamber temperature probe alarm with probe connector alarm ..... 11

1.5.5 Airway temperature probe alarm with probe connector alarm ................................ 11

1.5.6 Water out LED ........................................................................................................ 11

1.6 Operational Alarms ............................................................................................................... 11

1.6.1 Humidity alarm (lung symbol) ................................................................................. 11

All rights reserved. Copyright reserved.

I

Contents

Annex

Parts catalog

Test List

K5697500IECIVZ.fm 10.05.06

All rights reserved. Copyright reserved.

II

General

1

2

Fisher & Paykel MR 850 General

1 Symbols and Defini-

tions

WARNING

A WARNING statement provides important information about a poten­tially hazardous situation which, if not avoided, could result in death
or serious injury.

CAUTION

A CAUTION statement provides important information about a potentially
hazardous situation which, if not avoided, may result in minor or moderate
injury to the user or patient or in damage to the equipment or other prop­erty.

NOTE

A NOTE provides additional information intended to avoid inconvenience
during operation.

Definitions according to German standard DIN 31051:

Inspection = examination of actual condition

Maintenance = measures to maintain specified condition

Repair = measures to restore specified condition

Servicing = inspection, maintenance, and repair

2Notes

This Technical Documentation conforms to the IEC 60601-1 standard.

Read each step in every procedure thoroughly before beginning any test.
Always use the proper tools and specified test equipment. If you deviate from
the instructions and/or recommendations in this Technical Documentation,
the equipment may operate improperly or unsafely, or the equipment could be
damaged.

It is our recommendation to use only Dräger parts and supplies.

The maintenance procedures described in this Technical Documentation may
be performed by qualified service personnel only. These maintenance proce­dures do not replace inspections and servicing by the manufacturer.

The information in this Technical Documentation is confidential and may not
be disclosed to third parties without the prior written consent of the manufac­turer.

This Technical Documentation is for the purpose of information only. Product
descriptions found in this Technical Documentation are in no way a substitute
for reading and studying the Instructions for Use/Operating Manual enclosed
with the product at the time of delivery.

All rights reserved. Copyright reserved.

Version 3.0_ Released_Printed on_10.05.06_General_Technical_Documentation.fm

5697.500

3

General Fisher & Paykel MR 850

Know-how contained in this Technical Documentation is subject to ongoing
change through research and development and Dräger Medical reserves the
right to make changes to this Technical Documentation without notice.

NOTE

Unless otherwise stated, reference is made to laws, regulations or stan­dards (as amended) applicable in the Federal Republic of Germany for
equipment used or serviced in Germany. Users or technicians in all other
countries must verify compliance with local laws or applicable international
standards.

Version 3.0_ Released_Printed on_10.05.06_General_Technical_Documentation.fm

All rights reserved. Copyright reserved.

4

5697.500

Function Description

5

6

Fisher & Paykel MR 850 Function Description

1 MR 850 Respiratory

Humidifier

The MR 850 Respiratory humidifier is designed to add heat and moisture to
the respiratory gas delivered to the patient. The humidifier can be connected
to various ventilators. It supports CPAP ventilation, delivery of other medical
gases, intubation and mask ventilation.

Figure 1 MR 850 Respiratory Humidifier

1.1 Humidifier Operation The respiratory gas flows into the humidification chamber. A heater plate

heats the sterile, pyrogen-free water contained in the humidification chamber.
The heater plate is located below the humidification chamber. The heated
water humidifies the respiratory gas. A temperature probe at the humidifica­tion chamber outlet measures the respiratory gas temperature. The measure­ment signal is transmitted to a control circuitry. This control circuitry controls
the amount of power delivered to the heater plate in order to maintain the res­piratory gas temperature at a constant level.

The heated and humidified respiratory gas travels through the inspiratory
limb. The inspiratory limb has a heater wire inside. A temperature probe mea­sures the patient’s respiratory gas temperature. The opening of this tempera­ture probe is located at the end of the inspiratory limb near the patient. The
measurement signal from the temperature probe is transmitted to a control
circuitry. This control circuitry controls the power delivered to the heater wire
in order to maintain the respiratory gas temperature at the inlet and outlet of
the inspiratory limb at a constant level. This prevents the humidity contained
in the respiratory gas from condensing in the inspiratory limb.

An expiratory limb heater wire must also be used in order to stop the patient’s
expired humidity from condensing into the expiratory limb of the breathing cir­cuit.

For internal use only. Copyright reserved.

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

5697.500

7

Function Description Fisher & Paykel MR 850

1.2 Operating Modes

1.2.1 Stand-by mode Depending on the severity of the alarm condition, the humidifier will either

enter stand-by mode or remove all power from the heating systems (heater
plate, heater wire(s)).

The humidifier will generate an audible alarm and always enter stand-by
mode if the following occurs:

– Malfunction/error during operation

– Incorrect settings

– Gas flow in breathing circuit stops

In stand-by mode the following occurs:

– Heater wire power is set to 30 %

– Heater plate temperature is limited to 60 °C

– Heater plate power is limited to 20 %

1.2.2 Intubated mode ”Intubated” is the default mode on power on of the humidifier. This mode is for

use with patients who need to be ventilated mechanically. The humidifier
delivers an optimally humidified respiratory gas of 44 mg/L to the patient. The
respiratory gas temperature is almost the same as the patient’s core temper­ature (37 °C).

If ambient conditions change, e.g. due to cold or drafts, the temperature can
be reduced in steps to 35 °C in order to prevent condensate buildup in the
inspiratory limb.

1.2.3 Mask mode ”Mask” mode is suitable for patients who are receiving gas via a face mask

(O2 therapy, CPAP). In this mode the patients receive respiratory gas that
has an adequate humidity level (to compensate for the unphysiologically high
gas flow rate).

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

For internal use only. Copyright reserved.

8

5697.500

Fisher & Paykel MR 850 Function Description

1.3 Controls

1.3.1 On/off button If the on/off button is held down briefly, the humidifier will toggle on or off.

After power-on the humidifier starts an internal diagnostic routine (self test).
An audible signals tells the user when the self test is completed.

1.3.2 Mode button When held down for one second, the mode button toggles the humidifier

between mask mode and intubated mode.

1.3.3 Mute button The mute button silences the humidifier’s audible alarm. The muted time

depends on the alarm condition and the type of alarm.

Both the chamber temperature and then the airway temperature can be dis­played by pushing and holding the mute button for 1 second. The display will
return to airway temperature after a few seconds.

For internal use only. Copyright reserved.

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

5697.500

9

Function Description Fisher & Paykel MR 850

1.4 Optical Indicators

1.4.1 Display The display shows the saturation temperature of the delivered respiratory gas

in °C. Normally, it is the temperature of the humidification chamber (in intu­bated mode approx. 37 °C, in mask mode approx. 30 °C)

1.4.2 Humidity alarm (lung
symbol)

1.4.3 Warning triangle alarm The warning triangle indicates a serious hardware fault.

1.5 Setup Indicators
(LEDs)

1.5.1 Temperature probes These LEDs will light if the temperature probes (humidification chamber, air-

The humidifier will generate an audible and visual alarm if the temperature in
the humidification chamber is above 41 °C or the respiratory gas temperature
is above 43 °C.

The humidifier generates a visual and audible alarm if in intubated mode a
low level of humidity is being delivered to the patient for too long.

The humidity alarm may be caused by ambient conditions (cold, drafts) or
can result from too high or too low gas flow rates.

WARNING

If the warning triangle on the MR 850 Respiratory Humidifier comes
on, immediately take the humidification chamber and the breathing
circuit out of service.

The setup indicators (LEDs), placed on the lower left of the front panel, light
when the humidifier and its accessories are not set up correctly.

way) are not correctly plugged into the breathing circuit or the humidifier.

After power-on or fast changing of temperature values, the humidifier checks
whether the temperature probes are plugged in or not by first cooling down
then heating up the respiratory gas.

If the humidifier finds that either probe is not inserted into the breathing cir­cuit, an alarm will be generated and the humidifier will enter stand-by mode.
During this alarm the humidifier will initiate a probe out test periodically, or a
test will be initiated immediately after mute has been pressed.

During periods of low or zero gas flow, the airway probe out alarm is disabled.
As soon as flow is detected however, an airway probe test is initiated.

1.5.2 Heater wire adapter The heater wired adapter indicator will light under the following conditions:

– Heater wire adapter not connected correctly

– Breathing circuit is faulty or not connected correctly

– There is an intermittent connection

– Excessive current in the heater wires (total current in all limbs greater

than 3.5 A)

The humidifier will remove power from the heating system if the heater wire
adapter alarm is active.

10

5697.500

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

For internal use only. Copyright reserved.

Fisher & Paykel MR 850 Function Description

1.5.3 Temperature probe con­nectors

1.5.4 Humidification chamber
temperature probe alarm
with probe connector
alarm

1.5.5 Airway temperature
probe alarm with probe
connector alarm

The temperature probe LEDs will light under the following conditions:

– Temperature probes are not connected correctly to the humidifier

– Temperature probes are faulty

The humidifier checks whether the temperature probes are open or short cir­cuited.

The humidifier checks to see if the humidification chamber temperature probe
is faulty by testing for the following conditions:

– Humidification chamber temperature is greater than 80 °C.

– Humidification chamber temperature has been greater than 50 °C for 20

minutes.

If an apparent fault is found, the humidifier will give a probe connector alarm
and the LED of the humidification chamber temperature probe will light. The
humidifier will stay in stand-by mode until the temperature at the humidifica­tion chamber temperature probe drops below 50 °C.

The humidifier checks to see if the airway temperature probe is faulty by test­ing for the following conditions:

– Airway temperature is greater than 80 °C.

– Airway temperature has been greater than 50 °C for 5 minutes.

If an apparent fault is found, the humidifier will give a probe connector alarm
and the LED of the airway temperature probe will light. The humidifier will
stay in stand-by mode until the temperature at the airway temperature probe
drops below 50 °C.

1.5.6 Water out LED The water out LED indicates that there is insufficient water in the humidifica-

tion chamber.

The humidifier controls the amount of power required to maintain the set
chamber temperature at a constant level.

If a lower than expected amount of power is required, the humidifier will gen­erate a visual and audible water out alarm.

With greater changes in flow it may take 15 minutes or longer to generate a
water out alarm.

The water out alarm can be cancelled for 1 minute by pressing the mute but­ton. If however the water out condition remains, the humidifier will re-alarm.

1.6 Operational Alarms These alarms are generated if problems occur with the operation of the

humidifier.

1.6.1 Humidity alarm (lung
symbol)

A humidity alarm will occur if the displayed temperature is too high, or if the
delivered humidity (intubated mode only) has been low for a period of time.
The humidifier will generate a visual and audible alarm if the humidification
chamber temperature exceeds 41 °C or the airway chamber exceeds 43 °C.
If these high temperature alarms occur, the humidifier will immediately shut
down the heater wire and the heater plate.

For internal use only. Copyright reserved.

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

5697.500

11

Function Description Fisher & Paykel MR 850

Low humidity warning and alarm

The low humidity warning and alarm are disabled during warm-up and no flow
conditions.

The lung symbol lights when a low level of humidity is being delivered to the
patient. The audible alarm alerts the user that a low level of humidity has
been delivered to the patient for too long.

The humidification chamber temperature probe controls the humidity low
warning or alarm.

If the humidification chamber temperature is below 35.5 °C for 25 seconds,
the lung symbol will light. If the temperature remains below this level for too
long, then a low humidity alarm is activated.

The time taken for the humidifier to alarm is dependent on how far below the

35.5 °C threshold the temperature is.

The following Figure shows the relationship between temperature and the
time before a warning or alarm is generated:

12

Figure 2 Temperature vs time to alarm

Pressing the mute button silences the audible low humidity alarm for 1 minute
if the same temperature of the humidification chamber temperature probe is
maintained.

The low humidity warning and alarm can occur under the following condi­tions:

–Cold

– Drafts

– Gas flow rates outside specification of breathing circuit

– Gas flow rates outside specification of humidification chamber

– Gas flow rates outside specification of humidifier.

5697.500

Version 1.2_ Released_Printed on_10.05.06_F5697500T01.fm

For internal use only. Copyright reserved.

Annex

Parts catalog

Test List

Parts catalog

Fisher&Paykel MR 850

Emergency Care - Perioperative Care - Critical Care - Perinatal Care - Home Care

Revision: 2006-03-20 08:50:13

5697.500

Because you care

Because you care

2

Temp.Sensoradapter

Parts catalog

Item

Part No. Description Qty.

No.

8411044 PROBE-THERMOMETER HOUSING DRAE 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

3

Hose heater 1,1m

Parts catalog

Item

Part No. Description Qty.

No.

8411045 HOSE HEATER 1,10 M 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

4

Humidifier chamber MR 340(e)

Parts catalog

Item

Part No. Description Qty.

No.

8411047 HUMIDIFIER CHAMBER MR 340 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

5

Draw Wire 1,5m

Parts catalog

Item

Part No. Description Qty.

No.

8411050 DRAW WIRE 1,50 M 900 MR 070 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

6

Absorbent Paper

A

Parts catalog

Item

Part No. Description Qty.

No.

8411073

BSORBENT PAPER REFILL PACK 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

7

Rail Bracket (900MR088)

Parts catalog

Item

Part No. Description Qty.

No.

8411074 MOUNTING KIT F&P 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

8

Hose Heater 0,7m

Parts catalog

Item

Part No. Description Qty.

No.

8411154 HEATER WIRE 0,70M HFV-F&P 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

9

Humidifier Chamber MR370

Parts catalog

Item

Part No. Description Qty.

No.

8412217 HUMIDIFIER CHAMBER MR 370 (A) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

10

Absorbent Paper Set

A

Parts catalog

Item

Part No. Description Qty.

No.

8412218

BSORBENT PAPER 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

11

Y

-Piece F&P

Parts catalog

Item

Part No. Description Qty.

No.

8412220 Y-PIECE F+P 1.000 St

Qty.
unit

Remark

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Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

12

Y

-piece

Parts catalog

Item

Part No. Description Qty.

No.

8412888 Y-PIECE 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

13

Temperature probe 1,5m

Parts catalog

Item

Part No. Description Qty.

No.

8414966 Temperature probe 900 MR 869 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

14

Adapter Hose heater MR850

A

Parts catalog

Item

Part No. Description Qty.

No.

8414968

dapter hose heater MR850 reus 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

15

Hose heater 900MR751

Parts catalog

Item

Part No. Description Qty.

No.

8414969 Hose heater 900 MR 751 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

16

Temp./Flow probe 900MR868 1,1m

Parts catalog

Item

Part No. Description Qty.

No.

8414989 Temp./flowsensor 900 MR 868 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

17

Hose Set MR850 RT212

Parts catalog

Item

Part No. Description Qty.

No.

8414991 Hose kit for MR 850, RT 212 (10pcs) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

18

Hose Heater Adapter MR801

Parts catalog

Item

Part No. Description Qty.

No.

8414992 Hose heater adapter 900 MR 801 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

19

Hose Heater 900MR754

Parts catalog

Item

Part No. Description Qty.

No.

8414993 Hose heater 900 MR 754 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

20

Hose SetMR850 RT225

Parts catalog

Item

Part No. Description Qty.

No.

8414994 Hose kit for MR 850, RT 225 (10pcs) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

21

Hose Set E

Parts catalog

Item

Part No. Description Qty.

No.

8414986 Hose kit adult 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

22

Hose Set K

Parts catalog

Item

Part No. Description Qty.

No.

8414987 Hose kit paediatric 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

23

Adapt. Hoseheater MR850 disp.

A

Parts catalog

Item

Part No. Description Qty.

No.

8414967

dapter hose heater MR850 disp 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

24

F&P MR290 Chamber disp.(10pcs)

Parts catalog

Item

Part No. Description Qty.

No.

8418282 F&P MR290 disp.chamber (10p.) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

25

F&F MR290 Chamber (40pcs)

Parts catalog

Item

Part No. Description Qty.

No.

8418283 F&P MR290 Disp.Chamber (40pcs) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

26

F&P MR 340 Chamber (d)

Parts catalog

Item

Part No. Description Qty.

No.

8418286 F&P MR 340 Kammer (d) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

27

F&P Adapter 22f/22m+15f

Parts catalog

Item

Part No. Description Qty.

No.

8418289 F&P adapter 22f/22m+15f 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

28

Temp. Probe Adapter D15/D10

Parts catalog

Item

Part No. Description Qty.

No.

8418405 Temperature sensor housing D15/D10 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

29

Adapter 900MR533

A

Parts catalog

Item

Part No. Description Qty.

No.

8418407

dapter 900 MR 533 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

30

Adapter 900MR830

A

Parts catalog

Item

Part No. Description Qty.

No.

8418455

dapter 900 MR 830 1.000 St

Qty.
unit

Remark

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

5697.500

Revision: 2006-03-20 08:50:13

31

Adapter Hose Heater

Parts catalog

Item

Part No. Description Qty.

No.

MP01001 Heater Wire Adapter (Molex) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

32

U-Shaped mounting bracket

Parts catalog

Item

Part No. Description Qty.

No.

MP01002 Mounting bracket F&P 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

33

Humidifier Chamber MR340(F)

Parts catalog

Item

Part No. Description Qty.

No.

8418526 Humidifier chamber MR 340 (fr) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

34

Humidifier Chamber MR340(S)

Parts catalog

Item

Part No. Description Qty.

No.

8418527 Humidifier chamber MR 340 (es) 1.000 St

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

35

Basic Unit

Parts catalog

Item

Part No. Description Qty.

No.

Qty.
unit

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

36

Humidifier Basic Unit

Parts catalog

Item

Part No. Description Qty.

No.

1 8418518 Resp. humidifier MR850ALU 1.000 St

1 8418515 Resp. humidifier MR850AEA

1 8418519 Resp. humidifier MR850ANU

1 8418522 Resp. humidifier MR850JHU

1 8418517 Resp. humidifier MR850AFU

1 8418521 Resp. humidifier MR850GJU

1 8418523 Resp. humidifier MR850JSU

1 8418520 Resp. humidifier MR850ARU

1 8418516 Resp. humidifier MR850AEK

1 8418514 Resp. humidifier MR850ADU

1 8414719 Resp. humidifier MR850 AEU

1 8418488 Resp. humidifier MR850AEU (ZH)

1 8414720 Resp. humidifier MR850AGU

1.000 St

1.000

1.000 St

1.000 St

1.000

1.000 St

1.000 St

1.000 St

1.000

1.000 St

1.000 St

1.000

Qty.
unit

St

St

St

St

Remark

5697.500

Items that are shown in the illustration but are not listed below the illustration are not available as spare parts

Revision: 2006-03-20 08:50:13

37

Fisher&Paykel MR 850

Assembly Description Part No.

Parts catalog

Absorbent Paper

ABSORBENT PAPER REFILL PACK 8411073

Absorbent Paper Set

ABSORBENT PAPER 8412218

Adapt. Hoseheater MR850 disp.

Adapter hose heater MR850 disp 8414967

Adapter 900MR533

Adapter 900 MR 533 8418407

Adapter 900MR830

Adapter 900 MR 830 8418455

Adapter Hose Heater

Heater Wire Adapter (Molex) MP01001

Adapter Hose heater MR850

Adapter hose heater MR850 reus 8414968

Draw Wire 1,5m

DRAW WIRE 1,50 M 900 MR 070 8411050

F&F MR290 Chamber (40pcs)

F&P MR290 Disp.Chamber (40pcs) 8418283

F&P Adapter 22f/22m+15f

F&P adapter 22f/22m+15f 8418289

F&P MR 340 Chamber (d)

F&P MR 340 Kammer (d) 8418286

F&P MR290 Chamber disp.(10pcs)

F&P MR290 disp.chamber (10p.) 8418282

Hose Heater 0,7m

HEATER WIRE 0,70M HFV-F&P 8411154

Hose heater 1,1m

HOSE HEATER 1,10 M 8411045

Hose heater 900MR751

Hose heater 900 MR 751 8414969

Hose Heater 900MR754

Hose heater 900 MR 754 8414993

5697.500

Revision: 2006-03

38

Fisher&Paykel MR 850

Assembly Description Part No.

Parts catalog

Hose Heater Adapter MR801

Hose heater adapter 900 MR 801 8414992

Hose Set E

Hose kit adult 8414986

Hose Set K

Hose kit paediatric 8414987

Hose Set MR850 RT212

Hose kit for MR 850, RT 212 (10pcs) 8414991

Hose SetMR850 RT225

Hose kit for MR 850, RT 225 (10pcs) 8414994

Humidifier Basic Unit

Resp. humidifier MR850 AEU 8414719

Resp. humidifier MR850ADU 8418514

Resp. humidifier MR850AEA 8418515

Resp. humidifier MR850AEK 8418516

Resp. humidifier MR850AEU (ZH) 8418488

Resp. humidifier MR850AFU 8418517

Resp. humidifier MR850AGU 8414720

Resp. humidifier MR850ALU 8418518

Resp. humidifier MR850ANU 8418519

Resp. humidifier MR850ARU 8418520

Resp. humidifier MR850GJU 8418521

Resp. humidifier MR850JHU 8418522

Resp. humidifier MR850JSU 8418523

Humidifier chamber MR 340(e)

HUMIDIFIER CHAMBER MR 340 8411047

Humidifier Chamber MR340(F)

Humidifier chamber MR 340 (fr) 8418526

Humidifier Chamber MR340(S)

Humidifier chamber MR 340 (es) 8418527

Humidifier Chamber MR370

HUMIDIFIER CHAMBER MR 370 (A) 8412217

5697.500

Revision: 2006-03

39

Fisher&Paykel MR 850

Assembly Description Part No.

Parts catalog

Products concerned

Resp. humidifier MR850 AEU 8414719

Resp. humidifier MR850ADU 8418514

Resp. humidifier MR850AEA 8418515

Resp. humidifier MR850AEK 8418516

Resp. humidifier MR850AFU 8418517

Resp. humidifier MR850AGU 8414720

Resp. humidifier MR850ALU 8418518

Resp. humidifier MR850ANU 8418519

Resp. humidifier MR850ARU 8418520

Resp. humidifier MR850GJU 8418521

Resp. humidifier MR850JHU 8418522

Rail Bracket (900MR088)

MOUNTING KIT F&P 8411074

Temp. Probe Adapter D15/D10

Temperature sensor housing D15/D10 8418405

Temp./Flow probe 900MR868 1,1m

Temp./flowsensor 900 MR 868 8414989

Temp.Sensoradapter

PROBE-THERMOMETER HOUSING DRAE 8411044

Temperature probe 1,5m

Temperature probe 900 MR 869 8414966

U-Shaped mounting bracket

Mounting bracket F&P MP01002

Y-piece

Y-PIECE 8412888

Y-Piece F&P

Y-PIECE F+P 8412220

5697.500

Revision: 2006-03

40

Test List (TL)

Fisher & Paykel MR 850

Notes on field of application:

This test list can be processed with standard commercially available test aids and tools, but
does not replace the inspections and maintenance work carried out by the manufacturer.

Tests marked with the symbol " " are listed in the "Test List Report" and can be
documented there.

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1(Deckblatt).fm 21.03.06

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

Contents

1 Unit configuration ......................................................................................................................... 1

1.1 Serial number (SN) ....................................................................................................... 1

2 Maintenance parts ....................................................................................................................... 1

3 Electrical safety ............................................................................................................................ 2

3.1 Electrical safety check as perIEC 60-601 ..................................................................... 2

3.2 Electrical safety check as per VDE 0751 ...................................................................... 3

4 Function and condition test .......................................................................................................... 4

4.1 Power-on test ............................................................................................................... 4

4.2 Heating and control ...................................................................................................... 5

5 Test equipment ............................................................................................................................ 6

5.1 Test equipment subject to calibration ........................................................................... 6

5.2 Test equipment not subject to mandatory calibration ................................................... 6

6 Encs ............................................................................................................................................. 7

I

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1IVZ.fm 21.03.06

1 Unit configuration

The following equipment and accessories are additionally required for the
following tests on the Fisher & Paykel MR850.

 Hose system
 Hose adapter
 Temperature probes
 Ventilator (flow 10 L/min to 30 L/min)

1.1 Serial number (SN)

 1.1.1 Fisher & Paykel MR 850 [ __________ ]

 1.1.2 Software version [ __________ ]

2 Maintenance parts

- Not applicable -

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

1

3 Electrical safety

The following steps describe the electrical safety checks according to
IEC 60-601, see section 3.1, and VDE 0751, see section 3.2. Any
decision about performing safety checks according to VDE 0751 or IEC
60601 must be made under consideration of applicable national
regulations. Electrical safety checks should be carried out either
according to IEC 60-601 or VDE 0751.

3.1 Electrical safety check as perIEC 60-601

 3.1.1 Condition test

The Fisher & Paykel MR 850 Respiratory Humidifier and its power cable
are not damaged, dirty, or corroded.

 3.1.2 Protective earth conductor test

[OK]

Mains voltage tester

6 V

ohms

L

N

PE

PS

Test specimen

Test probe

Fig.1 Protective earth conductor test

Description of Fig.1:

A test a.c. voltage of approx. 6 V is applied to the protective earth
conductor of the test specimen (Fisher & Paykel MR 850) through a
current limiter. Scan conductive humidification chamber heater plate using
the test probe. The protective earth conductor resistance is calculated
from the flowing current and the voltage present at the test specimen. The
PE current is min. 10 A.

CAUTION

The heater plate has a non-conductive coating. Therefore measure the
protective earth conductor resistance at the bottom edge of the heater
plate.

 3.1.2.1 Heater plate [ _____ohms]

The test value should be less than/equal to 0.2 ohms.

2

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

3.2 Electrical safety check as per VDE 0751

 3.2.1 Condition test

The Fisher & Paykel MR 850 Respiratory Humidifier and its power cable
are not damaged, dirty, or corroded.

 3.2.2 Protective earth conductor test

[OK]

Mains voltage tester

6 V

ohms

L

N

PE

PS

Test specimen

Test probe

Fig.2 Protective earth conductor test

Description of Fig.2:

A test a.c. voltage of approx. 6 V is applied to the protective earth
conductor of the test specimen (Fisher & Paykel MR 850) through a
current limiter. Scan conductive humidification chamber heater plate using
the test probe. The protective earth conductor resistance is calculated
from the flowing current and the voltage present at the test specimen. The
PE current is min. 10 A.

CAUTION

The heater plate has a non-conductive coating. Therefore measure the
protective earth conductor resistance at the bottom edge of the heater
plate.

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

 3.2.2.1 Heater plate [ _____ohms]

The test value should be less than/equal to 0.2 ohms.

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

3

4 Function and condition test

 4.1 Power-on test

Test equipment: Respiratory humidifier MR 850 with hose adapter and
temperature probes.

Fig.3 Power-on test set-up

1. Connect the respiratory humidifier MR 850 to the power supply.

2. Turn on the respiratory humidifier MR 850 using the ON/OFF switch.

The unit completes its self-test. All LEDs and the 7-segment displays
come on briefly. The audible alarm sounds. The device then enters
normal operating mode without any error messages.

3. Turn off the respiratory humidifier MR 850 using the ON/OFF switch.

4. Disconnect the respiratory humidifier MR 850 from the power supply.

[OK]

4

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

4.2 Heating and control

Test equipment: Set up Fisher & Paykel MR 850 respiratory humidifier
with breathing circuit, hose adapters, temperature probes, and filled
humidification chamber ready for operation. Ventilator delivering a flow
rate of 10 L/min to 30 L/min, for example Evita.

Fig.4 Heating and control test set-up

1. Connect the Fisher & Paykel MR 850 respiratory humidifier to the
ventilator.

2. Connect ventilator to power supply.

3. Switch on the ventilator.

4. Connect the Fisher & Paykel MR 850 Respiratory Humidifier to the
power supply.

5. Press the power switch on the Fisher & Paykel MR 850 respiratory
humidifier.

The warm-up phase is complete after approx. 30 minutes and
temperatures have stabilized.

6. Press the “alarm silence” key for 1 second.

The chamber temperature is displayed for approx. 2 seconds, and the
chamber LED comes on. Then the airway temperature is displayed for
approx. 2 seconds, and the airway temperature LED comes on.

The humidification chamber temperature is in the range 35.2 °C to

37.3 °C.

[OK]

The patient temperature is in the range 38.2 °C to 40.3 °C.

No alarms occur.

7. Switch off the ventilator.

8. Disconnect the ventilator from power supply.

9. Turn off the Fisher & Paykel MR 850 respiratory humidifier using the
ON/OFF switch.

10.Disconnect the Fisher & Paykel MR 850 Respiratory Humidifier from
the power supply.

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

5

5 Test equipment

5.1 Test equipment subject to calibration

Subject to

Designation Characteristics/Info

calibration
 Mains voltage tester 1.6

5.2 Test equipment not subject to mandatory calibration

Designation Characteristics/Info Class

Ventilator Flow 10 to 30 L/min 1.6

Water container 2 L volume

Thermometer +0.5 °C/-0.5 °C

6

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

6Encs

- Not applicable -

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1.fm 21.03.06

5697.500 Fisher & Paykel MR 850 Released 2001-12-07

7

Test List Report Fisher & Paykel MR 850
Test List Edition: 2001-12-07
Installation site: __________

OK Result

( ) 1.1 Serial number (SN)

( ) 1.1.1 Fisher & Paykel MR850 [ __________ ]

( ) 1.1.2 Software version [ __________ ]

( ) 3.1 Electrical safety check as perIEC 60-601

( ) 3.1.1 Condition test

( ) 3.1.2 Protective earth conductor test

( ) 3.1.2.1 Heater plate [ _____ohms]

( ) 3.2 Electrical safety check as per VDE 0751

( ) 3.2.1 Condition test

( ) 3.2.2 Protective earth conductor test

( ) 3.2.2.1 Heater plate [ _____ohms]

4 Function and condition test

( ) 4.1 Power-on test

( ) 4.2 Heating and control

OK Result

Supply tested and fully functional device to owner/user.
Date: Name/Signature: 8

Observe protection mark DIN 34. Copyright reserved.

K5697500TL1EAL.fm 21.03.06

Manufacturer: Support:

Fisher & Paykel Healthcare Limited Dräger Medical AG & Co. KG

15 Maurice Paykel Place, East Tamaki Moislinger Allee 53 – 55

PO Box 14 348 Panmure Auckland 6 D-23542 Lübeck

New Zealand Germany

Phone: [phone] Phone: (+49) (0) 1805-3723437

Fax: [phone] Fax: [phone] - 3779

Subject to change without notice

Will not be replaced in the event of modifications.

© Copyright by Dräger Medical AG & Co. KG, Lübeck, Germany.

The warranty and liability conditions of the general terms and conditions for business transactions of
Dräger Medical AG & Co. KG are not extended by this Technical Documentation.