4
PHASE ROTATION METER
PRM-100
– Triple range: 0-5kV, 5-15kV and 15-45kV
with optional accessory R-45 add-on resistor sticks.
•
This meter does not measure voltage.
•
Determine phase rotation on systems up to 5kV
with the selector switch set for LO range and
without the add-on resistor sticks.
•
Determine phase rotation on systems up to 15kV with the selector switch set for
HI range and without the add-on resistor sticks.
•
Determine phase rotation on systems up to 45kV with the selector switch
set for HI range and with the optional add-on resistor sticks installed,
one on each meter stick.
PRM-100 Scale
OPERATING INSTRUCTIONS
Pre-Use Inspection
WARNING:
Before using the instrument be sure to test and inspect the equipment
to insure that it is functioning properly and is in safe, working condition. Failure to do
so may cause serious injury or death and may result in erroneous test measurements.
Before taking any reading, test and inspect the phase rotation meter as follows:
1) Make certain the instrument is clean, dry and waxed to a clear shiny surface.
2) Inspect the cord for cracked insulation.
3) Be sure that you are using hotsticks of the appropriate length, and examine each
hotstick to insure that it is clean, dry and waxed to a clear shiny surface.
4) Attach the appropriate probes for overhead or underground applications
(see page 6) and that the probes are properly installed and tightened.
5) Confirm the range switch is in the proper position.
6) Install add-on resistor sticks if necessary for the range being tested.
7) Test the phase rotation meter with a proof tester such as the HD Electric
PT-5000B (see page 6).