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Welding Machine Calibration - Skippack Welding

Welding Machine Calibration

CALIBRATION - VERIFICATION AND CERTIFICATION OF WELDING MACHINES

PROCEDURE TO FOLLOW PER MACHINE:

Machines Equipped with Meters

  1. Connect a variable, static-resistance load bank across the output of the welder to simulate a weld load.
  2. Connect lab-certified volt and amp meters to the output of the welder and use the meters to estab­lish standard welder output.
  3. Energize the welder and apply a load.
  4. Observe volt meter on the welder and compare reading or value with the standard welder output level or value above at 10 volt intervals throughout the range of the meter and output capability of the welder.
  5. Observe amp meter on the welder and compare reading or value against the standard welder output level or value above at 50 amp intervals throughout the range of the meter and output capa­bility if the welder.

    • All meters should read within+/- 10% of the standards (industry standard tolerance). Any meter not within tolerance will be calibrated according to the manufacturer's procedure and rechecked. If the meter cannot be calibrated to tolerance, the unit will be marked/tagged "out of calibration" until the meters are repaired/replaced and recalibrated.
  6. Upon passing the above tests, a dated sticker will be applied to the machine.
  7. The make, model, serial number and any customer i.d. number will be recorded and supplied to the customer in a certificate form providing traceability to the National Institute of Standards and Technology.
Machines without Meters

Skippack Welding Repair & Service cannot calibrate any machine without meters. It is our recommen­dation that our customer upgrade to a machine with meters if calibration standards are required

CALIBRATION - VERIFICATION AND CERTIFICATION OF WIRE FEEDER 

PROCEDURE TO FOLLOW PER MACHINE:

Machines Equipped with Meters

  1. Disengage drive rolls to prevent the wire from feeding to gun.
  2. Set feeder IPM to 700 in the jog mode. (you will take IPM reading at 200 IPM intervals from 700 – 100)
  3. Use the digital contact tachometer to determine the RPM of drive roll at each interval.(record the reading on the calibration data sheet)
  4. Use the following equation to find Actual IPM. RPM x C = IPM (record actual IPM on calibration data sheet)
  5. Observe IPM readings on the feeder and compare reading to the industry standard
    tolerance.

    • All intervals should read within +/- 5% of the IPM Setting. (industry standard
      tolerance). Any interval not within tolerance will be calibrated according to
      the manufacturer's procedure and rechecked. If the interval cannot be
      calibrated to tolerance, the unit will be marked/tagged "out of calibration"
      until the necessary repair is made and feeder is recalibrated.
  6. Upon passing the above tests, a dated sticker will be applied to the machine.
  7. The make, model, serial number and any customer i.d. number will be recorded and supplied to the customer in a certificate form providing traceability to the National Institute of Standards and Technology.
Machines without Meters

Skippack Welding Repair & Service cannot calibrate any machine without meters. It is our recommen­dation that our customer upgrade to a machine with meters if calibration standards are required

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