Greenlee 5880 - Typical Measurements

14
Typical Measurements
Insulation Resistance Test
1. Set the selector to the appropriate MΩ – voltage range:
• MΩ – 250 V • MΩ – 500 V • MΩ – 1000 V
2. Connect the + lead to the ground and the – lead to the test point.
3. Press the yellow insulation resistance test button to initiate the test voltage. Release to
terminate the test voltage.
4. See the Indicator Table to interpret the display.
After connection, the megohmmeter automatically will measure the voltage of the item under
test. If voltage is present, the voltage will appear on the display.
• If the voltage is more than 0 V, but less than 25 V, the results of the insulation resistance
test might not be accurate.
• If the voltage is greater than 25 V, the insulation resistance test function will be disabled.