SGB DLR-GS PMN Series, Документация

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OVERPRESSURE LEAK DETECTOR DLR-GS ..
10/09/2014
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4. Installation and assembly instructions
4.1. General notes
(1) Installation and assembly must only be performed by qualified firms
2
.
(2) The relevant accident prevention regulations must be complied with.
(3) Explosion protection requirements must be satisfied (where necessary), such as laws on
the basis of the European Directive 1999/92/EG and/or other applicable codes.
(4) When transporting the gas canister to and from the construction site, the relevant traffic
regulations must be observed.
(5) The gas canister must be secured at the construction site to prevent it falling over.
(6) If the device is being put into operation in closed spaces, ensure adequate ventilation.
(7) A test valve should be provided at the end of the pipe(s)/fitting(s) away from the leak
detector.
(8) Before accessing control shafts, check the oxygen content and, if necessary, flush the
control shaft.
(9) When using metallic connection lines, you must make sure that the mains earth is connect-
ed to the same potential as the pipe being monitored.
4.2. Personal safety equipment
The parts listed here apply in particular to safety when working on systems which pose an
explosion hazard.
If work is carried out in areas with a potentially explosive atmosphere, then the following items
of equipment are required as an absolute minimum:

Suitable clothing (because of risk of build-up of electrostatic charge)

Suitable tools (compliant with EN 1127)

A suitable gas warning device which is calibrated for the existing vapour-air mixture (work
should only be performed at a concentration of 50% below the lower explosion limit)
3

Measuring device for determining the oxygen content of the air (Ex / O meter)
4.3. Installation of the leak detector
(1) Generally in a wall-mounted installation with wall plugs and screws.
(2) In a dry room, or out in the open in a suitable housing.
(3) Installation in a protective box: additional external signal or alarm forwarding via
potential-free contacts to a central switch room or similar.
(4) NOT in areas with an explosion hazard.
2
For Germany: "qualified firms" in the sense of § 19 I of the Wasserhaushaltsgesetz (Water Resources
Act, WHG) which have demonstrated their qualification for installing leak detection systems, including
TRbF.
3
Other percentages may be applicable according to national, regional or plant-specific regulations.