SN EN 60546-1 : 1993

National foreword
Committees responsible
Methods
Introduction
1 Scope
2 Object
3 Basic relations
4 Definitions
5 General test conditions
6 Offset
7 Dial markings and scale values
8 Effect of influence quantities
9 Output characteristics and power consumption
10 Frequency response
11 Miscellaneous tests
12 Documentary information
13 Technical examination
14 Test report
15 Summary of tests
Figures
1 Basic signals to/from an idealized controller
2a Arrangement for open loop or closed loop tests
2b Arrangement for measuring air flow
3 Characteristic of a controller with proportional
    action only
4 Recorded characteristics of proportional action only
5 Recorded characteristics of integral action
6 Recorded characteristics of derivative action
7 Arrangement for common mode interference test (a.c.
    generator)
8a Arrangement for series mode interference test
    (voltage input)
8b Arrangement for series mode interference test
    (current input)
9 Flow characteristic of a pneumatic controller
10 Frequency response test results

Applicable to pneumatic and electric industrial-process controllers using continuous input and output signals complying with current international standards. The described evaluation tests can be applied to controllers with different but continuous signals, and to devices which internally use digital concepts and elements provided input and output signals are conventional analogue signals.