SGB DLR-GS PMN Series, Документация

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OVERPRESSURE LEAK DETECTOR DLR-GS ..
10/09/2014
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(6) Leak test (section 6.4.4)
(7) Set up the equipment ready for operation (section 6.4.5)
(8) Completion of a test report by the qualified person, with confirmation of functional and
operational safety and reliability.
6.4.2 Continuity test of the interstitial space
If several interstitial spaces are connected in parallel, each interstitial space must be tested
individually for continuity.
(1) Close both stop cocks on the test device. Insert the measuring instrument for the test into
test connection 51, and connect the test device to connection 6.2 (see also P-115 520
No. I). The measuring instrument now displays the current pressure in the interstitial space.
(2) Open the test valve for the first interstitial space connected.
(3) Observe any pressure loss on the measuring instrument.
(4) Close the test valve.
(5) Repeat the procedure from steps (2) to (4) with every other test valve on the interstitial
spaces connected to this leak detector.
(6) Connect the pressure accumulator to connection 6.1.
(7) Set the pressure regulating valve to the pressure setpoint.
(8) Open the shut-off valve on the pressure reducer.
(9) Open stop cock 2.2.
(10) Pressure build-up until pressure setpoint; during filling, monitor the pressure on the
pressure reducer (test pressure must not be exceeded) and re-adjust if necessary.
(11) Close stop cock 2.2 once the pressure setpoint is reached.
(12) Close the shut-off valve on the pressure reducer, remove the test device from its
connection, remove the measuring instrument and pressure accumulator from the test
device.
6.4.3 Testing the switching values
(1) If several interstitial spaces are connected via a distributor, close all of the stop cocks on
the distributor apart from the one for the interstitial space which is to be used for testing.
(2) Close both stop cocks on the test device. Insert the measuring instrument for the test into
test connection 51, connect the pressure accumulator to connection 6.1 and connect the
test device to connection 6.2 (see also P-115 520)
(3) Set the pressure regulating valve to the pressure setpoint.
(4) Open the shut-off valve on the pressure reducer.
(5) Open stop cock 2.1 until alarm signal output (visual and acoustic) can be detected; note
down value.
(6) Close stop cock 2.1.
(7) Compare the measured value with the specified value. The test is considered to have been
passed if the measured value for "Alarm ON" is greater than/equal to the specified value.