DS DS/EN 61514
DS DSEN 61514 2002-JUL-09 ndustral-process control systems - Methods of evaluatng the performance of valve postoners wth pneumatc outputs
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This International Standard specifies tests designed to determine the static and dynamic performance of single-acting or double-acting positioners. The test may be applied to positioners which receive standard analogue input signals (as specified in IEC 60381 and 60383) and have a pneumatic output.