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Overview
General Specifications
Frequently Asked
Questions
Q.
Can i monitor
several loads from one monitor?
A. No. It is not
advisable to switch current transformer inputs. Besides the need for special
current transformer switches, confusion over logged data and setpoint activation
would also have to be considered.
Q. Can i program the monitor
through the display?
A. Yes. All programmable
attributes can be accessed and programmed through the Display module.
Q. Do i need a display module?
A. No. All features of the
monitor can be accessed and programmed through the communication port(s).
Q. Can i power the Meter from
the source being monitored?
A. Yes, but it is not
advisable. Assuming a voltage match, logging of power outages and voltage phase
loss anomalies would be difficult, if not impossible.
Q. Can i change communications
networks?
A. No. Unlike the other
Allen-Bradley power monitors, the Powermonitor 3000 ships with a
non-interchangeable communications network card.
Q. What determines what
information i get using RIO block transfers?
A. The word length of the
block transfer.
Q. My Volt and Amp readings
look good, but my power numbers are way off.
A. One or more Current/Voltage
transformers are wired with reverse polarity.
Q. What size fuses do i use
for my voltage inputs?
A. Size the fuses to the
National Electric Code for the size of the wire being used.
Q. Why do i need shorting
terminal blocks for the current transformers?
A. If for any reason the
meter's current transformer wires are removed or disturbed to cause an open
circuit in the Current Transformers secondary while primary current is applied,
a hazardous Voltage will occur, which may cause personal injury, death, property
damage or economic loss.
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