IEC 61514 Ed. 2.0 en:2026

Full Description

IEC 61514:2026 specifies tests designed to determine the static and dynamic
performance of single-acting or double-acting analogue positioners. The tests apply to
positioners which receive standard analogue input signals (as specified in IEC 60381-1,
IEC 60381-2 and IEC 60382) and have a pneumatic output.
Positioners with pulsed or digital input signals, positioners with digital controllers and
positioners with pulsed outputs are outside the scope of this document.
Testing is conducted either on a positioner alone, independently of an actuator, or on a
positioner mounted and connected to a specific actuator, as a combined unit. The text makes
clear where different approaches are required.
The methods of evaluation given in this document are intended for use by manufacturers to
determine the performance of their products, and by users, or independent testing
establishments, to verify manufacturers' performance specifications.
The closest liaison between the evaluating body and the manufacturer is indispensable during
the tests, including the possibility for the manufacturer to influence the test programme based
on the manufacturer's specifications for the instrument and comment on both the test
programme and the results.
This document is intended to provide definitions of positioner elements, actions, and
characteristics, to specify uniform methods of measuring performance errors and effects of
influence quantities on those characteristics, and to describe methods of reporting and
evaluating the results of the measurement data obtained.
The test conditions described in this publication (for example range of ambient temperatures
and power supply) relate to conditions which commonly arise in use. Consequently, the values
specified are used where no other values are specified by the manufacturer or user. If other
values are used, they will be stated. It is recognized that the manufacturer's specifications and
instructions for installation and operation apply during all steps.
The tests specified in this document are not necessarily sufficient for instruments specifically
designed for unusually arduous conditions. Conversely, a reduced series of tests can serve
adequately for instruments designed to perform within a more limited range of conditions.
When a full evaluation, in accordance with this document, is not required or possible, only the
tests which are required are performed and the results reported in accordance with the relevant
parts of this document. In such cases, the test report will state that it does not cover the full
number of tests specified herein.