Maquet HU 35 User manual

HU 35, User's Manual 1

English version

2.00

User’s Manual

Heater Unit HU 35

2HU 35, User's Manual

English version

2.00

HU 35, User's Manual 1

English version

2.00

Table of Contents

1 Brief Instructions....................................................................... 3

2 Safety Instructions .................................................................... 5

3 General Description .................................................................. 7

4 Putting into Operation............................................................. 11

5 Instructions for Use................................................................. 19

6 Cleaning and Disinfection....................................................... 25

7 Maintenance and Safety Checks ............................................ 27

8 Troubleshooting ...................................................................... 31

9 Technical Data and Accessories ............................................ 33

10 Warranty and Liability Limitations ....................................... 39

2HU 35, User's Manual

English version

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HU 35, User's Manual 3

English version

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1. Brief Instructions

1. Connect the unit to the power supply.

2. Attach the oxygenator to the unit via the tubes.

3. Check the unit’s water level.

4. Switch on the unit using the power switch (0/I) and observe the automatic

performance test.

5. If the temperature setpoint is > 38°C when switching on the unit, the alarm

is disabled and the unit is put into operation by pressing the enable key

“>38°C”.

6. Set the temperature using the arrow keys if necessary.

7. Press the enable key “>38°C” and the arrow key simultaneously

for temperatures in excess of 38°C.

8. Monitor the patient’s body temperature.

9. Monitor the unit’s water level and water flow.

10. If the unit is used continuously, carry out the performance test manually by

pressing the “Performance Test” key once daily.

11. Second priority acoustic alarms can be disabled by pressing the “Alarm

Off” key.

12. First priority alarms can be disabled by switching the unit off.

4HU 35, User's Manual

English version

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1. Brief Instructions

Note: re. 12:

If a first priority alarm is sounded, all the unit’s functions are automatically shut

down. The unit must therefore be switched off in order to switch off the alarm

signal. The unit must no longer be used and should be sent to a service

technician for inspection and, if required, restoration of operational safety (see

Chapter 5 “Alarm Signals” and Chapter 8).

The unit must not be used if:

- the display is not functioning;

- the display is faulty (missing segments of numbers could result in

misinterpretation of values);

- the red alarm LED is either continuously lit or does not light up at

all (performance test);

- the signal horn either sounds continuously or does not sound at

all (performance test);

- the unit fails to react when the keys are actuated;

- the unit does not react as described in the User’s Manual when it

is switched on or the performance test is carried out.

These brief instructions do not free the user from his obligation

to observe the User’s Manual and instructions for use for the

respective oxygenator!

HU 35, User's Manual 5

English version

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2. Safety Instructions

• Before putting into operation, the user must ensure that both the unit

(power cord, housing, couplings etc.) and the applied part (oxygenator) are

in proper working order.

• Fill the tank with tap water only.

• Before opening the water tank’s screw cap, the unit must be disconnected

from the power supply. The unit must NOT be operated without the screw

cap.

• The unit must only be operated in a horizontal position away from heat

sources (spotlights, direct sunlight, heating elements, radiant heaters etc.).

• Do not cover the ventilation slots on the bottom and rear of the unit.

• The difference in height between the unit and the oxygenator must not be

more than one meter (1 m).

• Observe the automatic performance test when switching on the unit and, if

the unit is used continuously, perform the test manually at least once daily.

• When in use, the unit’s water flow and water level must be checked

regularly.

• The unit must only be operated with a sufficient water level.

• Do not kink the tubes.

• Observe the ambient temperature range (10 - 30°C) and the storage

temperature range (10 - 40°C).

• Only operate the unit with the MAQUET PLS oxygenator or other

oxygenators and their respective original accessories as part of

extracorporeal circuits.

• The unit must not be used in the presence of flammable gases.

• Carry out maintenance work and safety checks in accordance with the

User’s Manual.

6HU 35, User's Manual

English version

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2. Safety Instructions

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

HU 35, User's Manual 7

English version

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3. General Description

Figures.......................................................................................... 8

Product Description................................................................... 10

Intended Purpose / Indications ................................................. 10

Side Effects / Contraindications ............................................... 10

8HU 35, User's Manual

English version

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3. General Description

Figures

Figure 1: Front

1 Water filler neck with screw cap

2 Actual temperature display

3 Status and error messages display

4 “Performance Test” key

5 “Alarm Off” key

6 “Increase Temperature Setpoint” arrow key

7 “Temperature Setpoint greater than 38°C” enable key

8 “Decrease Temperature Setpoint” arrow key

9 Temperature setpoint display (33 - 39°C)

10 Water flow display for right coupling pair

11 Power switch O/I

12 Right coupling pair for connecting the tubes to the oxygenator

13 Blind plugs in left coupling pair

14 A. Threaded holes (fastening screws on housing) for tubing holder

B. Threaded holes for clamp mounting (accessories)

15 Water level display: min. water level

16 Fault display lamp

17 Water level display: max. water level

1

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3

4

5

14A

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8

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12

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14B

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Maquet HU 35 User manual

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