Check Unit Before Applying Power - Thermal Arc Fabricator 211i Service Manual

FABRICATOR 211i
E. Accessories
Accessory equipment, including output leads, electrode holders, torches, wire feeders and the like shall be inspected
at least monthly by a competent person to ensure that the equipment is in a safe and serviceable condition. All
unsafe accessories shall not be used.
F. Repairs
If any parts are damaged for any reason, it is recommended that replacement be performed by an accredited
Thermal Arc Service Provider.
Power Source Calibration
A. Schedule
Output testing of all Thermal Arc 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 Thermal Arc service
agent.
Output current (A) to be checked to ensure it falls within applicable Thermal Arc power source specifications
Output Voltage (V) to be checked to ensure it falls within applicable Thermal Arc power source specifications
Motor Speed (RPM) of wire drive motors to be checked to ensure it falls within required Thermal Arc power
source / wire feeder specifications
Accuracy of digital meters to be checked to ensure it falls within applicable Thermal Arc power source
specifications
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.
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.
TROUBLESHOOTING
Testing Requirements
Table 5-3 Calibration Parameters
WARNING
5-4
TROUBLESHOOTING
Manual 0-5158