Extech Instruments PRT200 User Manual

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User's Guide

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Non-Contact Phase Rotation Tester

Model PRT200

Introduction

Congratulations on your purchase of this Extech Meter. The PRT200 is used to quickly and
accurately determine three phase sequence for motor installation and repair. The non-contact
voltage detecting technique permits easy connection to insulated conductors, avoiding uncertain
and difficult connections to bare high voltage wires. This meter is shipped fully tested and
calibrated and, with proper use, will provide years of reliable service.

Safety

International Safety Symbols

This symbol, adjacent to another symbol or terminal, indicates the user must refer to the
manual for further information.

This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages
may be present.

Safety Notes

Double insulation

1. Read the following safety information carefully before attempting to operate the tester.

2. Use the tester only as specified in this manual or the protection provided by the tester may
be impaired.

3. This instrument cannot identify a missing earth line.

4. To assure accurate results, do not touch the clips during measurements.

5. Do not pull the cable when removing the measurement clips from the measured conductors.
It may damage the test lead.

6. Do not expose the instrument to direct sunlight, high temperature, high humidity or dew.

7. Keep the tester dry! Do not use the instrument when it is wet.

8. Do not mix old batteries with new ones.

9. Never open the battery compartment cover while connected to live conductors.

10. Avoid large shocks or vibrations, they may damage the tester.

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PRT200-EU-EN-V1.2 5/11