Megger PCITS600/2 - IDMT Dual Test

c) Dual test
From the ‘CURRENT’ testing options screen press ‘IDMT’, then ‘DUAL’. This is a combined forward and
runback test.
The runback test is started by: (i) cessation of current (ii) operation of the relay contacts (iii) by pressing
the START RUNBACK key, or (iv) the operating time exceeding 600 seconds. The runback test is halted
by pressing the STOP key, or if the runback time exceeds 600 seconds. A final display of the operation
and runback times is then given, with the option to REPEAT the test or ESCAPE to the current test sub-
menu (figure 5).
Operation
16
Return to the
current testing
option screen
Use arrow keys to
increase or decrease
the ‘SET CURRENT’
Output being set to achieve
the desired current when
test is started
Test must
be ended
by STOP
key
Test current applied and time
for relay to operate being
counted in seconds
IDMT: SELECT TEST
IDMT: DUAL
SET CURRENT: xxxA
SELECT
SET
START ESCAPE
RETURN ESCAPE
FWD
MANUAL IDMT MENU
RUNBACK DUAL
SET CURRENT: xxxA
SETTING CURRENT
LOAD CURRENT: xxxA
SET CURRENT: xxxA
xxxA
RUNBACK OFF
START
STOP
LOAD CURRENT: xxxA
OPERATION: xxx.xxS
RUNBACK: xxx.xxS
OPERATION: xxx.xxS