ISA 75.13 : 1996
Superseded
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METHOD OF EVALUATING THE PERFORMANCE OF POSITIONERS WITH ANALOG INPUT SIGNALS AND PNEUMATIC OUTPUT
Hardcopy
03-12-2013
English
01-01-1996
1 Scope
2 Purpose
3 Definitions
4 Testing procedures
4.1 Introduction
4.2 Test unit
4.3 Environmental test conditions
4.4 Supply conditions
5 Static behaviour
5.1 Measurement (calibration) cycle
5.2 Calibration curve
5.3 Effect of influence quantities
5.4 Flow capacity - supply and exhaust
5.5 Flow gain (KQ)
5.6 Steady-state consumption
5.7 Locked-stem pressure gain (Kp)
5.8 Accelerated life-cycle test
6 Dynamic response
6.1 Introduction
6.2 Test system
6.3 Influence of test conditions
6.4 Test equipment
6.5 Test procedures
7 Presentation of test results
7.1 Supporting information
7.2 Static behaviour test results
7.3 Dynamic behaviour test results
Figures
1 - Calibration curve (of data from Table 1)
2 - Supply pressure influence
3 - Ambient temperature influence
4 - Relative stem motion for typical linear actuator
5 - Test arrangement for electromagnetic susceptibility
6 - Test circuit for normal mode interference influence
7 - Test circuit for common mode interference influence
8 - Typical schematic for flow capacity tests
9 - Flow characteristic curve
10 - Locked-stem pressure gain (single-acting)
11 - Locked-stem pressure gain (double-acting)
12 - Schematic of simple dynamic response test system
13 - Steady-state characteristic of element exhibiting
dead band and effect on output
14 - Steady-state characteristic of element exhibiting
saturation and effect on output
15 - Recommended test signals
16 - Period variation
17 - Determination of phase shift for distorted output
Tables
1 - Calibration report
2 - Vibration levels used in the absence of manufacturer's
specifications
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