METREL EurotestXC MI 3152 - Page 144

MI 3152(H) EurotestXC (2,5 kV) Tests and measurements
143
Test procedure (MANUAL R, MANUAL I)
 Enter the IMD function.
 Set test parameter to MANUAL R or MANUAL I.
Set other test parameters / limits.
 Connect test cable to the instrument.
 Connect test leads to the object under test, see Figure 7.76.
 Start the measurement.
 Use the or keys to change insulation resistance
*)
until IMD
alarms an insulation failure for L1.
 Press or the key to change line terminal selection to L2.
(If IMD switches off voltage supply, instrument automatically changes line
terminal selection to L2 and proceeds with the test when supply voltage is
detected.)
 Use the or keys to change insulation resistance
*)
until IMD
alarms an insulation failure for L2.
 Press the or the key.
(If IMD switches off voltage supply, instrument automatically proceeds to the
PASS / FAIL / NO STATUS indication.)
 Use to select PASS / FAIL / NO STATUS indication.
 Press or the key to confirm selection and complete the
measurement.
 Save results (optional).
Test procedure (AUTO R, AUTO I)
 Enter the IMD function.
 Set test parameter to AUTO R or AUTO I.
 Set other test parameters / limits.
 Connect test cable to the instrument.
 Connect test leads to the object under test, see Figure 7.76.
 Start the measurement.
Insulation resistance between L1-PE is decreased automatically according to limit
value
*)
every time interval selected with timer. To speed up the test press the
or keys until IMD alarms an insulation failure for L1.
 Press or the key to change line terminal selection to L2.
(If IMD switches off voltage supply, instrument automatically changes line
terminal selection to L2 and proceeds with the test when supply voltage is
detected.)