Verify Proper Operation - Current Technology ISM Series Installation, Operation And Maintenance Manual

CURRENT TECHNOLOGY ISM
® TM

Verify Proper Operation

Figure 6
M1X Standard Monitoring
Figure 7
M2X Standard Monitoring
with Surge Counter
Figure 8
M3X Advanced Monitoring
INTEGRATED SUPPRESSION MODULE
➤ If your ISM has M1X Standard Monitoring (See Figure 6):
Verify that only the green indicating lights are illuminated and that there are no
red lights illuminated . Green lights indicate a normal condition for each phase .
Orange lights indicate protection of 40–75% and Red lights indicate protection
of <40% . Three-phase units have three (3) green indicating lights labeled "A,"
"B," and "C ." Split-phase units should only have lights "A" and "C" illuminated .
See table below for LED status indication .
The M1X Standard Monitoring is equipped with a dual set of Form "C"
dry contacts (Figure 6) . The relay containing the contacts is in the "alarm
condition" or normally closed when the power is off to the unit, when the
unit is encountering loss of power to one or more phases, or the ISM is
encountering more than 40% loss of capacity due to internal fuse operation .
Test the operation of the Form "C" contacts by de-energizing the ISM and
checking the state of the contacts with a continuity tester or observing the
effect of the contacts on the user provided remote alarm circuits .
➤ If your ISM has the M2X Option (See Figure 7):
The M2X option is equipped with a surge counter . The number of surges
detected by the ISM is displayed on a 6-digit LCD display on the front of the
counter . The surge counter will also increment each time power is applied to
the unit after being in the "off" state . The counter can be reset by pressing the
button on the front of the counter .
The M1X and M2X Standard Monitoring also contain an audible alarm that
should not operate under normal conditions . To silence audible alarm,
press ALARM SILENCE button on display .
If your ISM has the M3X option (See Figure 8), please refer to the
MasterMind Manual for specifications and operations .
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