Pi Measurement - AEMC 6505 User Manual

3.5 PI MEASUREMENT

MΩ-1000V
MΩ-1000V
Before the
measurement
(2 Presses)
During the
measurement
(4 Presses)
After the measurement
(6 Presses)
The values of PI and DAR are calculated as follows:
PI = R 10 min / R 1 min (2 values to be recorded during a measurement
lasting 10 min).*
DAR = R 1 min / R 30 s (2 values to be recorded during a measurement
lasting 1 min).
*For the calculation of the PI, the times of 1 and 10 min can be modified by the
user, if required, for a particular application. See § 3.5.1.
16
Set the switch to one of the insulation
■
measurement positions.
Start the measurement with a long press (> 2 s)
■
on the START/STOP button. The long press will
be acknowledged by an audible beep.
■ The measurement starts the default duration
of 10 min. A countdown will display the
time remaining. The measurement will stop
automatically.
Press the DISPLAY button to display:
■ Voltage present on the device to be tested.
■ Test voltage.
Leakage current present.
■
■ Measurement time remaining.
Instantaneous insulation resistance value.
■
■ Test voltage.
■ Current flowing through the resistance being
measured.
■ Value of PI (available at the end of 10 min).
Value of DAR (available at the end of one min).
■
■ Test voltage generated during the measurement.
PI and DAR.
■
■ Duration of the measurement.
■ Insulation resistance value just before the
measurement was stopped.
■ Current that flowed in the resistance measured.
Voltage present on the device being tested.
■
■ Capacitance.
■ Surface leakage current.
Megohmmeter Model 6505 - User Manual