MI 3108 EurotestPV
Measurements
– a.c. LV installations
44
Figure 5.9: Connections for insulation measurement
Insulation resistance measuring procedure
Select the
R ISO
function using the function selector keys.
Select the insulation subfunction with
/
keys.
Set the required
test voltage
.
Enable and set
limit
value (optional).
Disconnect
tested installation from mains supply (and discharge insulation as
required).
Connect
test cable to the instrument and to the item to be tested (see figure
5.9).
Press the
TEST
key to perform the measurement (double click for continuous
measurement
and later press to stop the measurement).
After the measurement is finished wait until tested item is fully discharged.
Store
the result by pressing the MEM key (optional).
Figure 5.10: Example of insulation resistance measurement result
Displayed results:
R.........................Insulation resistance
Um......................Test voltage
– actual value.
