ESAB FABRICATOR 211i
TROUBLESHOOTING 5-4 Manual 0-5450
Power Source Calibration
A. Schedule
Output testing of all ESAB Inverter Power Sources and applicable accessories shall be conducted at regular intervals to ensure they
fall within specified levels. Calibration intervals shall be as outlined below -
1. For transportable equipment, at least once every 3 months; and
2. For fixed equipment, at least once every 12 months.
If equipment is to be used in a hazardous location or environments with a high risk of electrocution as outlined in EN 60974-1, then
the above tests should be carried out prior to entering this location.
B. Calibration Requirements
Where applicable, the tests outlined in Table 5-3 below shall be conducted by an accredited ESAB service agent.
Testing Requirements
Output current (A) to be checked to ensure it falls within applicable ESAB power source specifications
Output Voltage (V) to be checked to ensure it falls within applicable ESAB power source specifications
Motor Speed (RPM) of wire drive motors to be checked to ensure it falls within required ESAB power
source / wire feeder specifications
Accuracy of digital meters to be checked to ensure it falls within applicable ESAB power source specifications
Table 5-3 Calibration Parameters
Periodic calibration of other parameters such as timing functions are not required unless a specific fault has been identified.
C. Calibration Equipment
All equipment used for Power Source calibration shall be in proper working condition and be suitable for conducting the measurement
in question. Only test equipment with valid calibration certificates (NATA certified laboratories) shall be utilized.
5.03 Check Unit before Applying Power
If the problem cannot be solved by the basic (external) troubleshooting guide, the Power Source cover will have to be removed to allow
the technician to analyse failures with a few common tools.
!
WARNING
Turn off power and disconnect mains supply plug from receptacle before working on the unit. Allow two
minutes for capacitors to discharge after disconnection from mains supply voltage.
Checking Unit Before Applying Power
!
WARNING
Turn SW1 to OFF position, and disconnect unit from primary line voltage before working on unit.
Significant DC voltage can remain on capacitors after unit is Off. Wait until all front panel LED’s are off
before removing case.
Check DC bus voltage according to Section
5.06 after removing case.
Before troubleshooting or applying power to unit, complete the following checks to avoid causing further
damage.
