selected so that the alarm switching pressure is always at least 30 mbar
above the static pressure of the stored liquid, taking account of possible
overlay pressure in the tank. In the case of a sump, the maximum liquid
hight of the liquid being collected must be taken into consideration. The
units are to be selected on the basis of the tables contained in Annex B
of the Technical Description dated 21 April 2004.
3.
The details stated by the manufacturer in the operating instructions
must be heeded for producing and sustaining the operating pressure of
the leak detector. The leak detectors are to be operated so that the
tolerable operating pressure of the interstitial space is not exceeded.
For leak detector type DLG.., fundamentally only pressure reducers
should be used with a maximum setting range for the pressure reducing
valve 5% to 10% below the test pressure of the interstitial space.
Otherwise, overpressure valves must be provided to prevent the
pressure from exceeding the maximum tolerable operating pressure in
the interstitial space.
4.
The supply pressure for the leak detector DLG.. stated in the Technical
Description for the pressure accumulator must be heeded because
otherwise, the re-fill quantity of leak detector medium deviates from the
tolerable value stated in the approval principles.
5.
Every leak detector must be marked indelibly and legibly with at least
the following details:
Manufacturer
or
manufacturer's
symbol
Year
of
production
Production
number
Approval
code
Type
designation
Nominal
operating
data.
6.
Every leak detector must undergo individual testing before delivery. The
requirements of ZG LAGR No. 7 must be observed in terms of
production monitoring.
7.
Every leak detector must be accompanied by installation and operating
instructions together with a copy of the approval certificate and, in the
case of type DL.., corresponding documentation for the dry filters
(cartridges) to be used and the corresponding interstitial space sizes.
9 Note
Compliance with the requirements for explosion protection, electromagnetic
compatibility and the low voltage directive was not part of the tests.
/round stamp/signature/
Surveyor of the Technischer Überwachungs-Verein Nord e.V.
Test department for leak detection systems.
41 von 49
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 ...
