Checking The Inhalation Valve; Checking The Exhalation Valve; Checking The Drain Valve; Performing The Leak Test With Positive Pressure - Dräger PSS BG 4 RP Instructions For Use Manual

4.5.3

Checking the inhalation valve

1. Tightly pinch the exhalation hose with your hand. Use the
face spanner from the test set if required.
2. Carry out pumping. The test unit must display at least
+10 mbar.
3. If +10 mbar is not reached, replace the inhalation valve or
inhalation valve disc (see chapter 4.2.3 on page 57).
NOTICE
i i
The low-pressure warning generated by the
Bodyguard during this test is irrelevant here.
4.5.4

Checking the exhalation valve

1. Set the selector switch on the test unit to
2. Tightly pinch the inhalation hose with your hand. Use the face
spanner from the test set if required.
L/min
3. Carry out pumping. The test unit must display at least
-10 mbar.
4. If -10 mbar is not reached, replace the exhalation valve or
exhalation valve disc (see chapter 4.2.3 on page 57).
NOTICE
i i
The low-pressure warning generated by the
Bodyguard during this test is irrelevant here.
4.5.5
1. Set the selector switch on the test unit to
2. Pull the open side of the protective cap over the pressure
35021851.eps
3. Continue to pump until flow noises can be heard at the
The drain valve must open between +10 mbar and +25 mbar.
.
4.5.6
1. Set the selector switch on the test unit to
2. Reduce the pressure on the test unit using the venting switch
3. Press the
4.5.7
35221851.eps
1. Set the selector switch on the test unit to
2. Set the selector switch on the test unit to
3. Pump until flow noises can be heard at the relief valve,
The pressure relief valve must open between +7 mbar and
+9 mbar.

Checking the drain valve

relief valve tappet and hold. Pump until the protective cap is
secured by the filled breathing bag.
drain valve. Read the value on the display.
NOTICE
i
i
The low-pressure warning generated by the
Bodyguard during this test is irrelevant here.

Performing the leak test with positive pressure

to approx. 7+0.5 mbar and wait until the pressure has
quietened.
button briefly to start the timer.
OK
The test time must amount to 1 minute. When the test time
has elapsed, the pressure difference is displayed. This is
not permitted to be greater than 1 mbar.
NOTICE
i i
The low-pressure warning generated by the
Bodyguard during this test is irrelevant here.

Checking the relief valve

remove the protective cap.
reading the value on the display.
NOTICE
i i
The low-pressure warning generated by the
Bodyguard during this test is irrelevant here.
Maintenance en
.
35121851.eps
.
and
.
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