E-Mon E20-6003200J-G-KIT - Manual (Page 16)

GREEN CLASS METER
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5.0 MONITORING MULTIPLE LOADS WITH
ONE METER
The Green Class meter provides extreme flexibility by allowing additional sets of
current sensors to be used in parallel so that multiple load locations can be monitored
by one meter. This feature allows a totalized display readout from two or more load
circuits.
You may use parallel sensors to monitor specific breakers from one panel, specific
breakers from more than one panel, two or more complete panels, etc.
When paralleling current sensors, the following rules must be followed for accurate
readings:
Rule 1: Current sensors must be installed in complete sets of three, with a maximum of
three sensors installed in parallel per phase.
Rule 2: All sensors used in parallel must be of the same amperage rating (i.e. 100
amp, 200 amp, etc.) The rating is determined by the current rating (amperage) of the
Green Class meter. For example, a 200 amp meter must use extra sets of 200 amp
current sensors.
Rule 3: All locations being monitored must have the same power source. A 480 volt
meter cannot monitor a 208 volt load nor can a meter monitor two 480 or 208 volt loads
if they are from different originating power sources or from different transformers.
Rule 4: The display readings must be multiplied by the number of sets of current
sensors installed. E.g. meter reading of 5 kWh with 2 sets of current sensors....5 x 2 =
10 kWh (actual usage.)
NOTE: One set of current sensors equates to three sensors, one per phase. The
multiplier only applies when extra sets of current sensors are installed on one
meter. Therefore, if you are using only one set of three sensors (one per
phase) the multiplier is not required.