1.
Press PI/DAR to select PI or DAR Measurement.
2.
LCD display PI & Time1/Time2 or DAR & Time1/Time2
3.
Press and turn the “PRESS TO TEST” button clockwise to
perform a timer measurement. Then the button is locked, and
timer measurement can be performed.
4.
After testing, turn the button counterclockwise to the initial
position, beeper is on, when PI/DAR>4 a monitor display “PASS”. When PI/DAR<1
a monitor display “FAIL” and automatically “HOLD” reading displayed
approximately 10 seconds.
NOTES
:(The following for reference only)
According to the standard IEEE 43-2000 with respect to the motor and related
equipment for trouble shooting, it will be for the insulation resistance testing of the
DAR or PI, to check the pollution or damp insulation properties. The instrument needs
to be maintenance if the reading cannot meet the minimum acceptable resistance.
Different level of insulation materials has different temperature characteristics and
polarization index (the following table: minimum acceptable polarization index value
for different level).
Minimum acceptable polarization index value
Insulation Level
Index value
A
1.5
B
2.0
F
2.0
H
2.0
