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Normal Pressure Lung Demand Valve Without Medium Pressure Coupling - Dräger 2100 Gebrauchsanweisung

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Normal pressure lung demand valve with-
out medium pressure coupling
Preparing the test device
Necessary accessories:
— Test piece PE (R 51 591)
— Test piece P (R 50 028)
— ESA adaptor (AG 02 406)
— Adaptor for lung demand valve of the PSS 90/100
(33 37 650)
— Adaptor for lung demand valve of the PSS 7000 (on
request)
 Close the compressed air cylinder of the compressed
air breathing apparatus.
 Remove the lung demand valve from the pressure
reducer.
 Fit the adaptor on the connection of the lung demand
valve.
 Fit the adaptor into the pressure reducer.
 Detach the test head.
 Connect the lung demand
valve with the corresponding
test piece/adaptor to the round
thread connection (1).
 Open the compressed air sup-
ply.
 Activate the measuring point "Round thread connec-
tion" (2).
Check for leaks
1)
 Set the test time
(1).
 Disconnect the hose with a
blunt tool.
 Generate the test pressure
Briefly pull the joystick (2) for
fine adjustment forwards sev-
eral times.
The pressure is displayed on the low pressure
manometer (3).
 Start the timer (1).
 Read the pressure at the end of the test time and com-
pare the pressure difference with the target value
Testing the opening pressure
 Slowly generate a negative
pressure (1).
 Observe the manometer (2).
 Read the opening pressure
and compare with the target
1)
value
.
1) Refer to the Instructions for Use of the lung demand valve.
1
2
3
1
1)
2
:
1)
.
2
1
Testing the metering valve
1)
 Set the test time
(1).
 Generate the test pressure
The pressure is displayed on
the low pressure manometer
(2)
 Start the timer (1).
 Read the pressure at the end of the test time and com-
pare the pressure difference with the target value
Ending the test
 Depressurize the line system.
 Remove the test assembly.
1)
.
2
1
1)
.
27

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3100

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