Operation; Pretest Procedure; Phase Rotation Tester Operation - AEMC instruments PMR-1 User Manual

4.1

Pretest Procedure

1. Press the Red motor rotation test button and verify that the
Green LED is brightly lit. If it is, the battery is OK. If it is dimly
lit, see Chapter 5 for battery replacement.
2. Connect the "A" (black) and "B" (red) leads on the phase rota-
tion side of the meter to a known AC power source between
100 and 600V
not, refer to Chapter 5 of this manual and the discussion on
fuse replacement.
3. Connect the "C" (blue) and "B" (red) leads on the phase rota-
tion side of the meter to a known AC power source between
100 and 600V
not, refer to Chapter 5 of this manual and the discussion on
fuse replacement.
4.2

Phase Rotation Tester Operation

1. Connect the test leads to the 3-phase input terminals marked
A-B-C.
2. Connect the alligator clips to the terminals of the 3-phase
power source to be tested. Connecting order is optional.
3. Make sure that all three LEDs (A-B-C) for open phase check
are on. If all are on, there is no open phase power problem.
If LED "A" or "C" are out, verify that power is present using a
voltage tester.
Phase & Motor Rotation Tester Model PMR-1
C
HAPTER
O
PERATION
. Make sure that the "A" LED lights. If it does
AC
. Make sure that the "C" LED lights. If it does
AC
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