SGB DLR-GS PMN Series, Документация

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Page 4 of 7
of the Approval Certificate
dated February 1, 2006
Order no. 0111 BM 21610
4 Test basis
4.1 Approval principles for leak detection systems for pipes (ZG-LAGR),
4.2 Building and testing principles for leak detection devices for pipes (TRbF 502),
4.3 Leak detection systems EN 13160.
5 Test documents/test specimens
5.1 Technical description of the overpressure leak detector DLR-.. dated
26.02.2002,
5.2 Prototype design of the leak detector, type DLR-G 3,
5.3 Test certificate for overpressure leak detector, type DLR-2, dated 21.06.95,
5.4 Technical description of overpressure leak detector DLR-P.. dated 21.12.2005
6 Tests
Design variant DLR-G 3 of the prototype design of the leak detector was tested for
compliance with the requirements in EN 13160:2003 and in accordance with the
approval principles for leak detection devices for containers and pipes. It was tested
in conjunction with the technical description / design drawings and the current flow
diagrams, as well as the installation and operating instructions and the software
documentation.
The following individual tests were performed:
1. Testing of the electrical equipment (excluding explosion protection aspects)
2. Functional testing and switching operations at various threshold temperatures
3. Testing of the visual and acoustic alarm devices,
4. Pressure and leak testing of the fixtures
Operating mode S with an operating overpressure of 4.1 bar was chosen for the
test.
7 Test results
Leak detector DLR-... complies with the requirements defined in EN 13160 and in
the approval principles and building/test principles. The components of the sample
device comply with the technical description and the drawings. The functional tests
performed on the sample device of the leak detector of type DLV-G 3 have shown
that the device can withstand the stresses and strains