SPECIFICATION FOR CALIBRATION AND PERFORMANCE TESTING OF SECONDARY CURRENT SENSING COILS AND WELD CURRENT MONITORS USED IN SINGLE-PHASE AC RESISTANCE WELDING
American Welding Society
Dedication
Personnel
Foreword
List of Tables
List of Figures
1. Scope
2. Testing
2.1 Measurement Standards
2.2 Test Categories
2.3 Physical Environment for Testing
3. CSC Tests
3.1 Mutual Inductance Calibration
3.2 Test for Position Sensitivity
3.3 Tilt Test for Position Sensitivity
3.4 Test for Sensitivity to External Magnetic Fields
3.5 Test for Measuring the Temperature Coefficient of the CSC
3.6 Frequency Response Testing of a CSC
4. Calibration of WCM-CSC Combination
4.1 Equipment
4.2 Setup
4.3 Calibration Procedure
5. Uncertainty Statements
5.1 Combined Uncertainty
6. Format for Reporting Test Results
6.1 Current Sensing Coil (CSC)
6.2 Weld Current Monitor (WCM)
6.3 WCM-CSC Combination
7. Calibration Certificate
Annex A (Normative) - Terms and Definitions
Annex B (Informative) - Positional Sensitivity Testing
for Current Sensing Coils
Annex C (Informative) - Sample Uncertainty Calculations
Annex D (Informative) - Reference Documents for Optional
Additional Information
Annex E (Informative) - Information Relating to the Testing for
CSC Frequency Response
Annex F (Informative) - Information Relating to Equipment
Traceability
Annex G (Informative) - Guidelines for the Preparation of
Technical Inquiries
Defines accepted methods for testing and reporting the performance characteristics of Rogowski-type air core Current Sensing Coils (CSCs) and the Weld Current Monitors (WCMs) used in the measurement of secondary current in single-phase ac resistance welding.
| Document Type | Standard |
| Status | Current |
| Publisher | American Welding Society |
