SGB DLR-P, Manual

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OVERPRESSURE LEAK DETECTOR DLR-P ..
DLR-
P ..
(3)
Start with the tightness test once the pressure has been equalised. The test is passed if the
values in the table below are met. A greater drop in pressure means more stress on
wearing parts.
Interstitial space volume (litres) Max. pressure drop of 1 mbar (0.015 psi) after
250 22 minutes
500 45 minutes
1000 1.50 hours
1500
2.25 hours
2000 3.00 hours
2500 3.75 hours
3000 4.50 hours
3500 5.25 hours
4000 6.00 hours
(4) Set the three-way cock 21 to position "I" and disconnect the gauge.
6.4.7 Set up the equipment ready for operation
(1) Seal the housing.
(2) The shut-off valves for all connected pipes must be set to their open position.
6.5. Alarm / fault
(1) The red signal lamp comes on and an audible signal sounds.
(2) Press the “Audible alarm” button to silence the audible signal.
(3) Contact the installation company immediately.
(4) Determine and rectify the cause for the alarm, then perform a functional test of the leak
detection system as described in section 6.4.
7. Disassembly
The following points are particularly important for the disassembly of plants and systems which
could represent explosive hazards.
•
Applicable regulations for the disassembly of electrical systems must be followed.
•
Check that no gas (potentially explosive atmosphere) is present before and during the work.
•
Seal any openings gas-tight that could otherwise allow the spread of an explosive
atmosphere.
•
Do not use electrical equipment capable of generating sparks (saw, cutting grinder...) for
disassembly. If this is unavoidable, follow the instructions in EN 1127.
•
Use low-sparking tools.
•
Avoid any build-up of electrostatic charge (e.g. due to friction).
•
Contaminated components (potential outgassing) should be disposed of appropriately.
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