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ISA 26 : 1968

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

DYNAMIC RESPONSE TESTING OF PROCESS CONTROL INSTRUMENTATION

Withdrawn date

31-08-2005

Published date

01-01-1968

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1 Purpose
2 Scope
3 Factors to be considered in dynamic response testing
   3.1 Use of data
   3.2 Interaction
   3.3 Nonlinearity
   3.4 Power supply to device being tested
   3.5 Test signals
   3.6 Qualifications of personnel performing tests
4 Recommended tests - sine wave and step
   4.1 Input signals
   4.2 Loading
   4.3 Load configurations
   4.4 Signal generation
   4.5 Parameters
   4.6 Air or power supply and operating conditions
   4.7 Final control elements
5 Test equipment and procedures - sine wave and step
   5.1 Data required
   5.2 Generalized test setup
   5.3 Test equipment
   5.4 Test procedures
6 Data presentation - sine wave and step
   6.1 Sine wave test data
   6.2 Step test data
   6.3 Supporting information
7 Recommended tests - pulse type
   7.1 Input signals
   7.2 Load configurations
   7.3 Signal generation
   7.4 Parameters
   7.5 Air or power supply
8 Test equipment and procedures - pulse type
   8.1 Data required
   8.2 Generalized test setup
   8.3 Test equipment
   8.4 Testing procedures
9 Data presentation - pulse type
   9.1 Pulse test data
   9.2 Step test data
   9.3 Supporting information
10 Glossary
11 Recommended test tabulations
12 References
13 Index

Identifies the basis for dynamic response testing of measuring and control equipment having pneumatic output and electric output, and for closed loop actuators for external actuated control valves and other final control elements. Also includes general recommendations applicable to all dynamic response testing and a brief glossary specifying terms used in the standard. Tabular format is used for simplifying application in the laboratory by those familiar with dynamic response testing. A minimum of discussion and descriptive material precedes the tabulation of recommended tests. Procedures for sine wave, step and pulse-type signals are covered.

Committee
SP26
DevelopmentNote
Formerly it was ISA-S26 (05/2001)
DocumentType
Standard
PublisherName
International Society of Automation
Status
Withdrawn

ISA TR75.25.02 : 2000 CONTROL VALVE RESPONSE MEASUREMENT FROM STEP INPUTS

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