OVERPRESSURE LEAK DETECTOR
DLR-2
18/01/2002 Ihr Partner für Leckanzeigetechnik
Sicherungsgerätebau GmbH, Siegen
- 4 -
4.5. Number of interstitial spaces connected
The number of individual pipes to be monitored depends on the overall volume of interstitial
space. According to the specifications in prEN 13160, 10m
3
must not be exceeded. The length
of pipework to be monitored (per pipeline) should not exceed 1200 m.
5. Assembly instructions
5.1. Basic
instructions
(1) Assembly may only be carried out by a qualified company
.
(2) Heed relevant accident prevention regulations.
(3) Heed explosion protection measures (if necessary).
(4) Relevant regulations covering the transport of the gas bottle to and from the site must be
heeded.
(5) The gas bottle must be secured in an upright position on site.
(6) If the putting into operation process is carried out in a closed room, care must be taken that
the room is sufficiently ventilated.
(7) A test valve must be designed on the end of the pipework away from the leak detector.
(8) Before inspection chambers are entered, the nitrogen content must be tested and the in-
spection chamber flushed if necessary.
5.2. Personal protective equipment
The parts listed here refer exclusively to safety during work on the equipment which could
cause an explosion.
If work is being carried out in areas where an explosive atmosphere is very likely, the following
pieces of equipment represent the minimum requirement:
•
suitable clothing (danger of electrostatic charge)
•
suitable tools (according to EN 1127)
•
a suitable gas warning device which has been calibrated for the steam-air mixture present
(work should only be carried out at a concentration 50% under the lowest explosion limit)
5.3. Assembly of the leak detector
(1) Usually fitted on the wall with dowel plugs and screws.
5
For Germany: Qualified company according to § 19l WHG, who has proved its qualification for the as-
sembly of leak detector systems incl. TRbF 180 / 280 no. 1.7.
6
Other percentages could be valid depending on country-specific directives.
