Megohmmeter Model 6505 - User Manual
13
3. OPERATION
NOTE:
Charge the instrument fully before use (see § 5.1)
.
3.1 SERIAL NUMBER
To view the serial number of the instrument, keep the
DISPLAY
button pressed
and turn the switch to the
MΩ-500 V
position.
3.2 SOFTWARE VERSION
To view the internal software version of the instrument, keep the
DISPLAY
button
pressed and turn the switch to the
MΩ-1000 V
position.
NOTE:
Technical documentation on Understanding Insulation
Resistance Testing is available at
www.aemc.com/understanding-irt
3.3 VOLTAGE MEASUREMENT
As soon as the switch is set to an insulation measurement position, the
instrument automatically measures the presence of any AC/DC voltage. This
voltage is measured at all times and indicated on the small display unit.
The instrument automatically determines AC or DC. The AC measurement is an
RMS value.
If an excessively high external voltage is present on the terminals (> 0.4 Un),
pressing the
START/STOP
button will have no effect, and no measurements
will be made. Similarly, if an excessively high erroneous voltage (> 0.4 Un) is
detected during the measurement, the measurement will automatically stop.
