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9.0 Frequently Asked Questions
Q. When providing line voltage to the meter, can I tap off of the same breaker I am
monitoring?
A. Yes, the voltage can be pulled from the same breaker being monitored.
Q. Can the meter’s line voltage wires be run in the same conduit as the sensor leads?
A. Yes, there will be no effect on the meter if the sensor leads and line voltage wires are run
in the same conduit.
Q. Can the meter communication wires and line voltage wires be run in the same
conduit?
A. It is NOT recommended to run these wires together due to noise concerns and their effects
on the communications signal integrity. Communication wires can be routed separately
using the 1/2” conduit port.
Q. How do I fi nd the cost for kWh and kW to bill my tenants?
A. Your local utility bill should list the cost per kWh and kW. If not, simply call your utility and
ask them to provide you with the cost per kWh and kW.
Q. What size wire do I use for the line voltage leads?
A. These wires are normally #14 AWG, but be sure to consult your local electrical codes for
proper sizing requirements.
Q. What size wire should I use to extend the current sensor leads?
A. These wires are normally sized at #14-22 AWG, twisted pair arrangement. Consult your
local electrical codes for proper sizing requirements.
Q. The load I need to monitor has parallel feeds. How do I install the current sensors
for this application?
A. There are two ways you can monitor parallel feeds. One method is to clamp the sensors
around all feed wires for each phase (no additional reading multiplier required). The
second way to monitor parallel feeds is to clamp the sensor around one of the feed wires
for each phase, and when you read the kWh meter the fi nal reading must be multiplied
by the number of feed wires for each phase.
Q. I have two subpanels I would like to monitor with one meter. These subpanels are fed
by different transformers in the building. Can I parallel sensors and monitor both
panels with one meter?
A. No. These panels cannot be monitored by one meter because they are different power
sources. When you parallel current sensors, all loads must be from the same voltage
source.
Q. I have 5 breakers in one subpanel I would like to monitor with one meter. Can this be
done without having to parallel current sensors?
A. Yes. Simply run all the breaker wires through one set of current sensors. Make sure all
A phase circuits are run through the A phase sensor, and the same for B & C phases. The
meter should be sized by the highest amount of current being monitored by one sensor.
Q. I’ve gone through the troubleshooting guides and I still can’t get my meter to work.
What should I do?
A. Before removing the unit, contact E-Mon’s technical support department at (800) 334-3666.
Our technical support experts will assist you in detailed troubleshooting of the meter
installation and assist you in getting the meter functional without having to remove and return
the unit.
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