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With regard to operational safety, test technology continues to grow in importance. The DVGW (German Technical and Scientific Association for Gas and Water) Code of Practice G 465-4 describes the tests required for various device classes.

The test sets ATS 503 and ATS 501 can be used to carry out device inspections and adjustments to gas concentration measuring devices EX-TEC® PM 580, 550, 500 and 400 reliably and extremely efficiently.

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