PXL Series Installation
and Operation Manual
Instruction Manual
Page 7
Effective: January 2006
Standard Display
100 KA
Premium Display
100KA
3.2 Monitoring Options
3.2.1 Standard Display
The Standard display option has the
following features:
Fuse sensing circuitry that identifies a
short circuit failure and changes the
status indicator lights.
Audible alarm that can be disabled by
a push button.
An “Alarm Disabled” indicator in the
form of red LED
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3.2.2 Premium Display
The Premium display option has the
same features as the Standard plus a
multifunction LCD screen for displaying
the following parameters:
Phase voltages
Surge counts
Sag counts
Swell counts
Outage counts
The display is controlled by
and
push buttons. The
switch is
used to scroll between the above
parameters and the
switch is
used to reset the counters to zero.
A
function push button is used to
check monitor functioning by inputting a
false fuse opening signal and causing the
red LED to illuminate.
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STEP
RESET
STEP
RESET
TEST
3.2.3 Remote Status Indication
(Standard Feature)
All PXL monitor displays are equipped
with isolated single Form C relay
contacts. These dry contact terminals are
identified as
(normally open)
(normally closed) and
(common)
The Form C contacts may be wired to
one or more remote locations to identify a
change of status. Check the operation of
the form C relay monitoring contacts by
switching the power
and back
Contact are rated up to 1A/220
VAC
NO
NC
COM
OFF
ON.
Note:
Section 4 Troubleshooting
4.1 Life expectancy
Note: The PXL is not field repairable.
A properly applied SPD is designed to
provide over 25 years of life expectancy.
These units will not fail due to
degradation of internal components, even
when exposed to continued high energy
induced surges.
PXL unit reliability has been verified by
extensive testing at independent lightning
laboratories. These tests confirm the
suppression circuitry can meet the
published surge current ratings.
Note: The PXL unit can withstand
thousands or repetitive induced lightning
surges on the AC power line. These test
levels are significantly higher than IEEE
recommended surges (as published by
IEEE C62.41)
4.2 What Causes an SPD to
Fail?
The PXL is designed and tested to
survive thousands of high energy surges.
If the unit becomes damaged the failure is
typically due to the following causes:
Inadequate grounding
Incorrect product application
(Wye into a DELTA voltage system)
Temporary over-voltage (TOV). This
rare event occurs when the electrical
system experiences a fault that results in
RMS over-voltage in one or more phases.
Refer to the following Section 4.4 on
trouble shooting.
When the voltage rises over 15% above
the nominal operating voltage, the
internal suppression components are
damaged as they attempt to shunt this
prolonged multi-cycle overvoltage event.
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IM 01005001E
information visit: www.eatonelectrical.com
Effective 01.06
