Dräger RH 600 Notice D'utilisation page 35

Before each use
1 Press the power switch until it clicks into position =
ON.
The microprocessor then runs a self-test to check that
the apparatus is functioning correctly.
All displays come on for about 1 second.
All numeric displays show 88.8.
A continuous tone is sounded.
The apparatus then switches over to »Man« mode
(manual adjustment of heater output).
2 The message Err on the display indicates a fault.
See page 50.
3 5 LEDs are lit in the heater output display = heater
level 5.
4 Press key † or ˝ and release immediately.
Heater level 5 is accepted.
If the keys are held down, the heater level is changed.
5 Press key 6: a reference temperature is simulated to
check the temperature measurement.
6 The message 36 °C (±0.1 °C) should appear in the
temperature display. If not, see page 50.
Checking the power failure alarm and NiCd
rechargeable battery
Disconnect the power plug.
N
7 The red LED marked
tone is sounded: the volume of this signal must remain
constant for at least 30 seconds.
If the volume fades earlier:
Leave the apparatus switched on and connected to
the mains until the battery is charged.
Repeat the test.
In the event of power failure, or if the apparatus is
accidentally switched off, the settings remain stored in
memory for 5 minutes.
comes on. An intermittent
Checking readiness for operation
2
1
6
4 3 4
5
Preparation
7
35