BS ISO 17657-4 : 2005 AMD 17299

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Construction of calibration system
   4.1 Reference welding current measuring system
   4.2 Test set-up
   4.3 Basic feature for calibration of welding current
        measuring system
   4.4 Basic feature for calibration of current sensor
   4.5 Basic feature for calibration of welding current
        meter without sensor
5 Physical environment and operating conditions
6 Calibration requirements
   6.1 Reference welding current measuring system
   6.2 Reference current sensor
   6.3 Data acquisition device
   6.4 Test stage and power sources
7 Test report
   7.1 Test report for calibration of welding current
        measuring systems
   7.2 Test report for calibration of current sensors
   7.3 Test report for calibration of welding current
        meters without sensors
8 Test procedure
   8.1 General
   8.2 Calibration of welding current measuring system
   8.3 Calibration of current sensor
   8.4 Calibration of welding current meter without sensor
   8.5 Special calibration cases
Annex A (informative) Measuring set-up
Annex B (informative) Items to be recorded or filed as reference
                      documentation for calibration
Annex C (informative) Examples of the test report in accordance
                      with this part of ISO 17657

Provides calibration systems and calibration procedures for welding current measuring systems, current sensors, welding current meters and monitoring devices with current sensor used for measuring welding current in resistance welding with alternating current of 50 Hz or 60 Hz, or with direct current.