Extech Instruments 380801 Manual

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380801-380803 V7.0 8/06

12W

Power Line

Motor

Using a Current Transformer

Warning: Only personnel well trained in the principles of Current Transformers (CT)

should attempt this test connection. When connecting a CT, follow the wiring diagrams

and instructions below.

1. Connect the CT’s k terminal (entering the CT) to the power line that passes through the

CT, and connect this k terminal to the input voltage black terminal (ground).

2. Connect the other power line to the input voltage red terminal.

3. Connect the CT’s l terminal (leaving the CT) to the output load black terminal (ground).

4. The Watt reading and Amp reading should be multiplied by the CT ratio. The V and PF

readings do not need to be multiplied by the CT ratio.

Warning: The input receptacles and terminals are connected in parallel (as are the

outputs). Do not touch any metal part of the receptacle or terminal.