METREL EurotestCOMBO MI 3125 - 5.2 Insulation resistance

MI 3125 / BT EurotestCOMBO Measurements
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Insulation resistance measuring procedure
* model MI 3125 BT
 Select the INS function using the function selector switch.
 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 5.6).
 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 5.7: Example of insulation resistance measurement result
Displayed results:
R.........................Insulation resistance
Um......................Test voltage – actual value.