Dräger PSS BG 4 RP, Инструкция по эксплуатации

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64
Maintenance en
4.5.1 Preparation of test
1. Switch on the test unit: Press the button for 3 seconds.
2. Position the closed-circuit breathing apparatus and test unit
so that both devices are easily accessible and the test unit can
be operated easily.
3. Remove the protective cover (see chapter 3.3.1 on page 51).
4. Perform tests.
4.5.2 Checking the response threshold of the low
pressure warning
1. Remove the protective cap from the connecting piece and
insert the connecting piece into the connection for the
closed-circuit breathing apparatus.
2. Set the selector switch on the test unit to .
3. Pump slowly.
4. Watch the test unit display:
The low pressure warning must activate before a pressure
of +1.4 mbar is reached.
The low pressure warning is displayed as follows:

Backlight turns on including red LEDs.

The "Open cylinder valve" symbol appears on the Body-
guard display.

The alarm tone sounds intermittently.
1 Display
2 Selector switch
3 Pump
4 Switch for venting
5 Connection for closed-circuit breathing apparatus
6 Connecting piece
7 Protective cap
OK
34921851.eps
L/min
6 5 3 4
7 1 2