Testing The Lung Demand Valve; Normal Pressure Lung Demand Valve With Medium Pressure Coupling - Dräger Testor 2100 Notice D'utilisation

Testing the lung demand valve

As an alternative to the following description, the func-
tioning of the lung demand valve can be tested in nor-
mal position (with full-face mask on the test head).
Normal pressure lung demand valve with
medium pressure coupling
Preparing the test device
Necessary accessories:
— Plug 9/20 (12 94 091)
— Test piece PE (R 51 591)
— Test piece P (R 50 028)
— ESA adaptor (AG 02 406)
 Detach the test head.
 Seal the medium pressure
hose of the lung demand valve
with the plug (1).
 Connect the lung demand
valve with the corresponding
test piece /adaptor to the round
thread connection (2).
 Open the compressed air supply.
 Activate the measuring point
"Round thread connection" (3).
Check for leaks
1)
 Set the test time (1).
 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
 Detach the lung demand valve
from the round thread connec-
tion.
 Remove the plug and connect
the medium pressure hose (1).
The coupling must engage.
 Reconnect the lung demand valve to the round thread
connection (2).
 Slowly generate a negative pressure (3).
 Observe the manometer (4).
 Read the opening pressure and compare with the tar-
1)
get value .
1) Refer to the Instructions for Use of the lung demand valve.
NOTICE
2
1
3
1)
:
2
2
1
3
Testing the metering valve
 Set the test time
 Generate the test pressure
 Start the timer (1).
 Read the pressure at the end
of the test time and compare
the pressure difference with
the target value
Ending the test
 Depressurize the line system.
 Remove the test assembly.
3
3
1
1)
.
4
1)
(1).
1)
.
1)
.
2
1
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