Frequently Asked Questions - Honeywell 3400 Installation Instructions Manual

E-MON CLASS 3400 METER

12.0 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 if the sensor leads and line voltage wires are run in
the same conduit.
Q. Can the meter's communication wires and line voltage 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.
Communications wires can be routed separately using the 3/4" conduit port.
Q. How do I find 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 sized at #14 AWG, but be sure to confirm this
requirement with your local and national electrical code requirements.
Q. What size wire should I use to extend the current sensor leads?
A. These wires are normally 14-22 AWG, twisted-pair arrangement. Consult your
electrical code for proper wiring requirements.
12.0 Frequently Asked Questions
(continued)
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. The easiest and preferred
method is to clamp the sensors around all feed wires for each phase. The second
way to monitor parallel feeds is to clamp the sensor around one of the feed wires
for each phase. When you read the meter, the final 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 E-Mon Class 3400 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 with one meter because they are
different power sources. When you parallel current sensors, all loads being
monitored must be from the same voltage source.
Q. I have 5 breakers in one subpanel I would like to monitor with one
E-Mon Class 3400 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
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