24/10/2018
PRESSURE LEAK DETECTOR
DLR-G ..
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6. Commissioning
(1) Only perform commissioning once the steps in section 5 "Mount-
ing" have been fulfilled.
(2) Flush the interstitial space with inert gas if walls of storage medi-
um are not impermeable.
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(3) If a leak detector is commissioned on a pipe (fitting) that is al-
ready in operation, special protective measures must be taken
(e.g. testing that the leak detector and/or the interstitial space is
free of gas). Additional measures may be necessary depending
on the local conditions and must be assessed by qualified per-
sonnel.
6.1
Commissioning the Pressure Gas Bottle
(1) Turn pressure regulator all the way back.
(2) Open cylinder shut-off valve. (if necessary, test tightness be-
tween pressure reducer and bottle)
(3) Set pressure on the pressure reducer using the pressure regula-
tor on the pressure reducer according to section 3.3 (adjust dur-
ing pressure build-up, if necessary).
(4) After completion of the functional check with operating mode "I"
or to change the bottle:
- Close shut-off valve on the pressure reducer.
- Close cylinder shut-off valve.
- Remove pressure reducer from the bottle (Caution: Gas will
escape until the pressure reducer has no pressure).
- Install protective cover on bottle.
(5) For bottle change, continue with:
- Secured set-up, then remove protective cover.
- Install pressure reducer. (if necessary, test tightness between
pressure reducer and bottle)
- Open cylinder shut-off valve.
- Open shut-off valve on the pressure reducer, readjust pres-
sure using the pressure regulator, if necessary.
6.2
Commissioning the Leak Detector
(1) Tightness of the interstitial space prior to commissioning is as-
sumed
(2) Switch on line voltage
(3) Ascertain lighting of "Operation" and "Alarm" signal lamps and
sounding of the audible alarm. If necessary, turn off audible
alarm signal.
With operating mode "C", the power supply activates automatic
refilling.
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For Germany: Additional DIBT requirements must be considered for such double-walled pipes.
Commissioning
