MI 3102(H) BT
Eurotest
XE
Measurements
69
IMD test procedure (MANUAL R, MANUAL I)
Select the
IMD
function from the
OTHERS menu
.
Select
MANUAL R
or
MANUAL I
sub-function.
Enable and set
limit
value.
Connect
3-wire test lead to the instrument and tested item (see Figure 5.58).
Press the
TEST
key for measurement.
Press the
UP / DOWN
keys to change insulation resistance
*)
until IMD alarms an
insulation failure for L1.
Press the
TEST
key to change line terminal selection to L2.
In case, when IMD switches off voltage supply, instruments automatically changes line
terminal selection to L2 and proceed with the test when instrument detects supply
voltage.
Press the
UP / DOWN
keys to change insulation resistance
*)
until IMD alarms an
insulation failure for L2.
Press the
TEST
key.
If IMD switches off voltage supply, instrument automatically proceeds to the PASS/FAIL
indication.
Use the
TAB
key to select PASS / FAIL indication.
Press the
TEST
key to confirm selection and stop the measurement.
Store
the result (optional).
IMD test procedure (AUTO R, AUTO I)
Select the
IMD
function from the
OTHERS menu
.
Select
AUTO R
or
AUTO I
sub-function.
Enable and set
limit
values.
Connect
3-wire test lead to the instrument and tested item (see
Press the
TEST
key for 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
UP / DOWN
keys
until IMD alarms an insulation failure for L1.
Press the
TEST
key to change line terminal selection to L2.
In case, when IMD switches off voltage supply, instruments automatically changes line
terminal selection to L2 and proceeds with the test when instrument detects supply
voltage.
Insulation resistance between L2-PE is decreased automatically according to limit value
*)
every time interval selected with timer. To speed up the test press the
UP / DOWN
keys
until IMD alarms an insulation failure for L2.
Press the TEST key.
If IMD switches off voltage supply, instrument automatically proceeds to the PASS/FAIL
indication.
Use the
TAB
key to select PASS / FAIL indication.
Press the
TEST
key to confirm selection and stop the measurement.
Store
the result (optional).
*)
When MANUAL R or AUTO R sub-function is selected, start value of insulation resistance is
determined by
it
start
R
R
lim
5
.
1
When MANUAL I or AUTO I sub-function is selected, start value of insulation resistance is
determined by
it
L
L
start
I
U
R
lim
2
1
5
.
1
