480300 Datasheet, PDF (1/2 Pages) Extech Instruments Corporation. – Phase Rotation Tester

User's Manual
Phase Rotation Tester
Model 480300
Introduction
Congratulations on your purchase of Extech’s Phase Rotation Tester. This professional
meter, with proper care, will provide years of safe reliable service.
Specifications
Signal Input Voltage
Signal Frequency Range
Circuit Structure
Operating Temperature
Operating Humidity
Fuse Rating
Power Supply
Power Consumption
Dimension
Weight
Standard Accessories
100VAC up to 660VAC max., 3 minute limit over 500VAC.
45 to 70 Hz.
All electronic
0oC to 50oC (32oF to 122oF)
Less than 90% RH.
250mA / 250V
Uses connection to external equipment for power
approx. 7mA @ 500V.
3.9 x 1.9 x 1.0” (100 x 50 x 25mm)
0.33 lbs. (150g)
40cm test leads with alligator clips and Instruction Manual
Operation
The Phase Rotation function determines if the 3 phases are live and the
direction a motor will turn if connected as indicated in Table 1 below.
1. Connect the three test leads to the 3 phase AC power source
2. Observe that all three lights (L1, L2, L3) are active
3. Observe the directional indication lights.
4. If the direction indicated is counter-clockwise, reconnect any
two wires until the clockwise indicator is lighted.
5. If the clockwise indicator is lighted, label the power source
"L1, L2, L3" (R, S, T)
L1 L2 L3
RST
480300 Ver. 1.5 4/01