4-12. Secondary Insulation Protection
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Secondary insulation protection circuitry automatically shuts down the power source output if a potentially hazardous condition exists at the heating device connected to the power source (e.g. insulation has broken down on a heating blanket causing the conductor to come into contact with the workpiece or a heating coil touches the workpiece causing a short in the output circuit).
The supplied ground lead(s) must be connected between the workpiece and power source to provide proper secondary insula- tion protection from a short in the output circuit.
For single output, only one ground lead is required. For dual output , use both ground leads.
1Receptacles
2Plug
To connect plug, align key with key- way, insert end into receptacle, and rotate plug until tight.
3Handle
4Magnet
.The secondary isolation magnet
must be in contact with bare metal (free from rust, paint, grease, etc.).
5 Workpiece
Use handle to place magnet on the workpiece.
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