Pi Measurement - AEMC 6505 User Manual

4.5

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 /
lasting 10 min)*
DAR = R
1 min /
lasting 1 min)
*For the calculation of the PI, the times of 1 and 10 minutes can be modified by the user, if
required, for a particular application. See § 4.5.1.
20
• Set the switch to one of the insulation
measurement positions.
• Start the measurement by a long press (>2s)
on the START/STOP button. The long press
is acknowledged by an audible beep.
• The measurement starts the default duration
of 10 min. A countdown displays the
time remaining. The measurement stops
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 in the resistance being measured
• value of PI (available at the end of 10 minutes)
• value of DAR (available at the end of one minute)
• 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
R (2 values to be recorded during a measurement
1 min
R (2 values to be recorded during a measurement
30 sec
Megohmmeter Model 6505