Amprobe PRM-6 - Manual (Page 9)

5
UNPACKING AND INSPECTION
Your shipping carton should include:
1 PRM-6 Motor and Phase Rotation Tester
3 Test leads (black, red, yellow)
3 Test probes (black, red, yellow)
3 Alligator clips (black, red, yellow)
2 1.5V AAA battery (installed)
1 Users manual
1 Carrying case
If any of the items are damaged or missing, return the complete package to
the place of purchase for an exchange.
USING MOTOR AND PHASE ROTATION TESTER
Determine the Rotary Field Direction
To determine the rotary field direction:
1. Connect one end of test leads to the tester’s corresponding terminals L1,
L2, and L3.
2. Connect the alligator clips or the test probes to the other end of the test
leads.
3. Connect the alligator clips/test probes to the three mains phases.
4. L1, L2 and L3 indicators shows voltage is present.
5. The clockwise or counter-clockwise rotary indicator shows the type of
rotary field direction present.
6. If the “Warning Symbol” illuminates, either one or two of the inputs are
connected to the neutral conductor or the voltage difference between
the phases exceed 30% phase to phase or 65% between phase to
neutral.
Note:
• The PRM-6 is powered by the motor or system being tested.
• In environment with poor light condition you can switch on the
Backlight while pressing and hold button “ON” to improve visibility.
W Warning
The rotary indicator L1, L2 and L3 lights even if the neutral conductor, N, is
connected instead of L1, L2, or L3. Refer to Figure 1 for more information
about what appears on the back of the PRM-6).