SIT-A191 Thank you for purchasing our Inverter-Type Welding Transformer SIT-A191. • This operation manual explains its method of operation and precautions for use. • Before using this Transformer, read this operation manual carefully until you have familiarized yourself with it.
SIT-A191 1. Special Precautions (1) Safety Precautions CAUTION ! Before using, read "Safety Precautions" carefully to understand the correct method Denotes operations and practices that of use. may result in personal injury or damage to the equipment if not correctly followed.
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SIT-A191 WARNING ! Do not put your hands between the electrodes When welding, keep your fingers and hands away from the electrodes. Do not touch +/- terminal, secondary cable, any welded part or electrodes during welding and just after welding finished These parts are very hot.
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SIT-A191 CAUTION ! Do not splash water on the Welding Transformer Water splashed over the electric parts can cause electric shock and short circuits. Use proper tools (wire strippers, pressure wire connectors, etc) for termination of the connecting cables Do not cut the conductor of wire. A flaw on it can cause fire and electric shock.
SIT-A191 (2) Precautions for Handling Install this Welding Transformer on a firm and level surface. If it is inclined, malfunction may result. Do not install this Welding Transformer in the following: Damp places where humidity is 90% or higher, ...
SIT-A191 2. Name and Function of Each Section Front Panel 1 [+] terminal Connect the positive (+) cable of the welding head to this terminal. 2 [-] terminal Connect the negative (-) cable of the welding head to this terminal.
Dirt 10cm min. (2) Connection After selecting a proper place for installation of SIT-A191, connect it to the other devices according to the explanatory drawings on pages 3-2 to 3. ATTENTION Our welding head MH-31AC and welding power supply IS-600A is used in the explanatory drawings.
SIT-A191 4. Specifications (1) Specifications Rated voltage 300 V (When input voltage to inverter power supply is 220 V AC) Frequency 1 kHz No-load secondary 13 V (23 tap) / 15.8 V (19 tap) voltage Max. output current 10000 A Max.
SIT-A191 5. Troubleshooting Contents Cause Measures Body of SIT-A191 Fan motor does not work. Consult us or your distributor. becomes hot abnormally. Secondary cables are not connected correctly. Current does Check that all cables are not flow. connected correctly. Output cable attached to power supply is not connected correctly.
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