Specifications

Transtig 200Pi, 250Pi, 300Pi
36
In addition to the above tests and specifically in relation to the VRD fitted to this machine, the following
periodic tests should also be conducted by an accredited CIGWELD service agent.
Description AS3195 & IEC 60974-1 Requirements
VRD Open Circuit Voltage Less than 20V; at Vin=240V
VRD Turn ON Resistance Less than 200 ohms
VRD Turn OFF Time Less than 0.3 seconds
If this equipment is used in a hazardous location or environments with a high risk of electrocution then the
above tests should be carried out prior to entering this location.
Welding equipment should be regularly checked by a qualified electrical tradesperson to ensure that:
• The main earth wire of the electrical installation is intact.
• Power point for the Welding Power Source is effectively earthed and of adequate current rating.
• Plugs and cord extension sockets are correctly wired.
• Flexible cord is of the 3-core tough rubber or plastic sheathed type of adequate rating, correctly
connected and in good condition.
• Welding terminals are shrouded to prevent inadvertent contact or short circuit.
• The frame of the Welding Power Source is effectively earthed.
• Welding leads and electrode holder are in good condition.
• The Welding Power Source is clean internally, especially from metal filing, slag, and loose material. If
any parts are damaged for any reason, replacement is recommended.
15.1 Face Shield Maintenance (where supplied)
The face shield and lens should be cleaned after use with a soft cloth.
16. Basic Troubleshooting
WARNING 8
There are extremely dangerous voltage and power levels present inside this product. Do not attempt to open or
repair unless you are an Accredited CIGWELD Service Agent and you have had training in power measurements
and troubleshooting techniques.
If major complex subassemblies are faulty, then the Welding Power Source must be returned to an
Accredited CIGWELD Service Agent for repair.
The basic level of troubleshooting is that which can be performed without special equipment or knowledge.
16.1 TIG Welding Problems
Description Possible Cause Remedy
1 Electrode melts when
arc is struck.
Electrode is connected to the ‘+’
terminal.
Connect the electrode to the ‘−’
terminal.
2 Dirty weld pool. A Electrode contaminated through
contact with work piece or filler
rod material.
A Clean the electrode by grinding off
the contaminates.
B Gas contaminated with air. B Check gas lines for cuts and loose
fitting or change gas cylinder.