OVERPRESSURE LEAK DETECTOR DLR-P ..
DLR-
P ..
6.2.2 Maintenance work and functional tests performed by qualified persons
(1) Testing once a year for functional and operational reliability and safety.
(2) Test scope according to section 6.4.
(3) It should also be checked that the conditions in sections 4, 5 and 6.2 are satisfied.
6.3. Intended
use
•
For double walled pipes/fittings
•
Vapour-air mixtures which may potentially arise due to
– the liquid being conveyed,
– the liquid being conveyed in conjunction with air/air moisture or condensate
– the liquid being conveyed in conjunction with the materials used
must be classifiable in temperature classes T1 to T3 and in explosion group II A or II B.
For this type of liquid, the wall on the side of the product beeing conveyed must be
resistant to permeation.
•
The feed pressure (in the inner pipe) must be at least 1 bar lower than the minimum alarm
pressure.
•
The system must be earthed in accordance with applicable regulations
•
Tightness of the leak detection system should be ensured according to section 6.4.7.
•
The leak detection unit must be installed outside the potentially explosive-area.
•
Conduits for connecting lines must be sealed gas-tight.
•
The leak detector should be (electrically) connected in a way which cannot be switched off.
6.4. Functional
tests
Testing of the functional and operational safety and reliability should be performed
•
at every commissioning
•
in accordance with the intervals laid out in section 6.2
•
whenever a fault is rectified.
6.4.1 Test
scope
(1) If necessary the work to be performed should be discussed with the person who is
responsible on-site.
(2) Observe the safety information on handling the products beeing conveyed.
(3) Replacement or regeneration of the filter cartridge.
7
In Germany: by a trained specialist with expertise in the maintenance and servicing of leak detection
devices, or under the responsibility of a trained and qualified individual in accordance with the applicable
regulations.
8
In Germany: e.g. EN 1127, regulations of the EVUs
9
In Germany: legal regulations of the
Länder
also need to be satisfied (e.g. VAwS).
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Summary of Contents for DLR-P
Page 18: ...Ex 17 102 72 22 09 2005 M1 078 000 76 30 21 20 70 Ex Ex 02 74 57 88 18 38...
Page 19: ...57 88 99 99 57 88 88 02 22 09 2005 M2 078 000 Ex Ex Ex 230 V 50 Hz 21 20 72 71 69 01 09 19 38...
Page 20: ...88 88 22 09 2005 M3 078 000 Ex Ex Ex 230 V 50 Hz 21 20 72 71 69 01 09 20 38...
Page 21: ...88 22 09 2005 M4 078 000 Ex Ex Ex 230 V 50 Hz 21 20 72 71 69 01 09 200 mm 21 38...
Page 23: ...22 84 85 52 0 Kl 1 0 31 10 2005 P 115 392 21 21 20 20 90 90 23 38...
Page 29: ...28 06 2005 Drilling Dimension 200 300 260 220 T 140 8 29 38...
