OVERPRESSURE – LEAK DETECTOR DL ..
(7) If start up/operation takes place in enclosed rooms, ensure that there is adequate
ventilation. Affix a warning sign.
4.2 Personal Protective Equipment
The items listed here refer in particular to safety when working on systems which may be
subject to risk of explosion.
When working in potentially explosive areas, at least the following items of equipment are
required:
•
Suitable clothing (risk of electrostatic charge)
•
Suitable tools (as per EN 1127)
•
Suitable gas detectors for the prevailing vapour/air mixtures (work should only be carried out
at concentrations 50% below the lower flammable limit
•
Instruments for measuring the oxygen level in the air (Ex / O-meter)
4.3 Installing the leak detector
(1) Mounted to the wall usually with plugs and screws.
(2) In a dry room, or in the open air in a suitable protective box.
(3) Installation in protective box: additional external signal or alarm forwarding via dry relais
contacts to central control desk or similar device.
(4)
NOT in potentially explosive areas
.
(5) The distance between leak detector and interstitial space should be kept as short as
possible.
4.4 Installation of connection lines (between leak detector and tank)
(1) Metal (usually copper) or plastic tubes with pressure resistance at least equal to the test
pressure of the interstitial space, the same applies to fittings and screwed unions. (Note
temperature range, particularly when using plastic).
(2) Inside clearance min. 4 mm for inert gas as leak detection medium
min. 6 mm for air as leak detection medium
(3) Should not be much longer than 50 m. If longer than 50 m, use tube/hose with larger inside
clearance using corresponding adapters.
(4) Colour coding:
Measuring line:
red
Pressure line:
white (or clear)
(5) The full cross section must be maintained. No squeezing or bending
(6) Metal or plastic tubes underground or plastic tubes installed outside above ground must be
routed in conduits.
5
Other percentages are possible based on national or company regulations.
6
If necessary, use commercially available moulded pieces (with stipulated bending radii) for plastic tubes.
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Содержание DL 100
Страница 19: ...I I II II III III IV IV 21 21 21 21 20 20 20 20 27 11 2002 P 060 000 Druckleitung Messleitung 19 von 49 ...
Страница 20: ...Ex Ex Ex 17 102 72 73 43 13 27 11 2002 M1 060 000 76 30 21 20 70 20 von 49 ...
Страница 21: ...Ex Ex Ex 73 73 73 230 V 50 Hz 21 02 43 20 13 72 27 11 2002 M2 060 000 71 69 01 09 21 von 49 ...
Страница 22: ...27 11 2002 M3 065 000 45 71 29 69 01 09 103 104 14 Ex Ex Ex 73 73 73 230 V 50 Hz 21 02 43 20 13 22 von 49 ...
Страница 24: ...27 11 2002 SL 853 600 2 6 4 5 3 11 12 1 AC DC 105 106 102 71 01 69 24 1 59 09 76 17 60 Rp 24 von 49 ...
Страница 26: ...22 84 85 85 22 52 98 98 0 Kl 1 0 17 12 2002 P 115 392 21 21 20 20 90 90 26 von 49 ...
Страница 34: ...28 06 2005 Drilling Dimension 200 300 260 220 T 140 8 34 von 49 ...
