Extech Instruments PRT200 User manual
PRT200-EU-EN-V1.2 5/11
2
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.
Double insulation
Safety Notes
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.
PRT200-EU-EN-V1.2 5/11
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Meter Description
1. Clockwise phase sequence LED
2. Rotation LEDs
3. Live indication LEDs
4. Power on and low battery LED
5. Power switch
6. Brightness switch
7. Counter-Clockwise phase sequence LED
8. Rotation LEDs
9. Buzzer
1. Magnets
2. Battery compartment cover
3. Battery compartment screw
1
2
1
3
1
2
3
4
5
6
7
8
9
7
PRT200-EU-EN-V1.2 5/11
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Operation
Note: Before proceeding, read all safety notes.
1. Press the power switch to turn on the instrument. All of the LEDS will flash for a 2 second
test. Only the power LED will remain on after the test. Do not use the instrument if any of the
LEDs do not work.
2. Connect the three non-contact alligator clips to the three phase power conductors.
Red to L1 (R, U)
White to L2 (S, V)
Blue to L3 (T, W)
3. The “▼” symbol on each clip should be
placed at the center of each conductor.
4. The CW or CCW LED and rotation LEDs
will indicate the phase sequence.
5. The buzzer will sound intermittently for a
clockwise sequence and continuously
for a counter-clockwise sequence..
Status Indications
State Indication
Three live conductors L1,L2,L3 LEDs are ON
Open phases L1, L2 or L3 LED is OFF for open phases
Missing Earth line LED does not light up for missing earth line
Earth line (Delta
connection) Phase with flashing LED is an earth phase
Positive CW phasing The CW Rotation LEDs flash in clockwise direction as indicated
with "arrow" marks. The buzzer sounds intermittently.
Negative CCW phasing The CCW Rotation LEDs flash in counter-clockwise direction as
indicated with "arrow" marks. The buzzer sounds continuously.
Brightness
Press the Brightness button to increase the light intensity of the LEDs. This can be helpful in
observing the LEDs in brightly illuminated areas.
Auto Power Off
In order to extend battery life, the unit will automatically shut off after 5 minutes of inactivity.
Magnet Mounting
Four magnets are located on the rear panel to enable convenient hands free mounting during use.
PRT200-EU-EN-V1.2 5/11
5
Maintenance
Battery Replacement
When the ON LED begins to flash, the batteries need to be replaced.
1. Remove the clips from any conductors.
2. Remove the screw holding the battery compartment cover and remove the cover.
3. Replace the four AA batteries.
4. Replace the battery cover.
You, as the end user, are legally bound (Battery ordinance) to return all used batteries
and accumulators; disposal in the household garbage is prohibited!
You can hand over your used batteries / accumulators at collection points in your
community or wherever batteries / accumulators are sold!
Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the
end of its lifecycle.
Cleaning and storage
Periodically wipe the case with a damp cloth. Do not use abrasives or solvents.
A small standby current flows when the meter is off. If the meter is not to be used for a period longer
than 60 days, remove the batteries and store them separately.
Specifications
Measurement Principle Static induction
Input Voltage 75 to 1000VAC
Frequency Range 45 to 65Hz
Max conductor diameter 33mm (1.3”)
Probe length 86cm (34”)
Auto-Off 5 min. without sequence detection
Low Battery Warning Power LED flashes
Batteries 4 x 1.5V AA
Current consumption 15mA
Operating Temperature & Humidity -10°C to 50°C (14°F to 122°F) Max. 80% R.H.
Storage temperature & Humidity -20°C to 60° (-4°F to 140°F) Max. 80% R.H.
Safety This meter is intended for origin of installation use and
protected, against the users, by double insulation per
EN61010-1 to Category IV 600V and Category III 1000V;
Pollution Degree 2.
Approvals CE
Copyright ©2011 Extech Instruments Corporation (a FLIR company)
All rights reserved including the right of reproduction in whole or in part in any form.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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