Kemppi Master S 400 Service Manual

Also see for Master S 400: Operating instructions Quick guide

Kemppi Master S 400 Service Manual Manual pdf 21 page image

Service manual Master S 400 and 500 Version 1.1 5.9.201419Kemppi Oy4.3. Calibration procedureCalibration is not normally needed to be done. Spare part cards are calibrated in factory and will keeptheir range while installed in to the machine.If calibration parameters are accidentally modified, they can be restored by selecting parameter FAC inthe end of calibration menu. See technical information elsewhere in this manual. If there is facedproblems in the validation or calibration procedure please contact to technicalservice@kemppi.comCurrent can be measured with clamp meter and voltage with digital multimeter.Calibration can be done with welding or by using load bank. Note that voltage calibration can be doneonly if load bank is used. If this is not possible, simply skip the voltage calibration steps 5 and 13.1. Set current set value to 50A.2. Enter the calibration menu by pressing “Remote” button as long as entering to CAL menu3. Start welding or switch on the load.4. Select Primary Current Offset Factor (COF) with potentiometer and press “Remote” button shortlyto select it. Adjust value with potentiometer so that measured current value equals the set value(50A). Exit the parameter by pressing “Remote” button shortly.5. Select Voltage Offset Factor (UOF) with potentiometer and press “Remote” button shortly toselect it. Adjust value with potentiometer so that measured voltage equals the value in the paneldisplay. Exit the parameter by pressing “Remote” button shortly. Note that this parameter canbe adjusted only if used load bank. The voltage varies too much while welding.6. Select Display Current Offset Factor (dOF) with potentiometer and press “Remote” button shortlyto select it. Adjust value with potentiometer so that measured current equals the value in thepanel display. Exit the parameter by pressing “Remote” button shortly.7. Stop welding or cut out the load in the load bank.8. Exit the calibration mode by long pressing the “Remote” button9. Set current set value to 300A.10. Enter the calibration menu by pressing “Remote” button as long as entering to CAL menu11. Start welding or switch on the load.12. Select Primary Current Offset Scale (CSc) with potentiometer and press “Remote” button shortlyto select it. Adjust value with potentiometer so that measured current value equals the set value(300A). Exit the parameter by pressing “Remote” button shortly.13. Select Voltage Offset Scale (USc) with potentiometer and press “Remote” button shortly to selectit. Adjust value with potentiometer so that measured voltage equals the value in the panel display.Exit the parameter by pressing “Remote” button shortly. Note that this parameter can beadjusted only if used load bank. The voltage varies too much while welding.14. Select Display Current Scale Factor (dSc) with potentiometer and press “Remote” button shortlyto select it. Adjust value with potentiometer so that measured current equals the value in thepanel display. Exit the parameter by pressing “Remote” button shortly.15. Stop welding or cut out the load in the load bank.16. Exit the calibration mode by long pressing the “Remote” button

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