E-Mon E10-2277200JKIT - Manual (Page 18)

CLASS 1000 METER
62-0388-01 18
5.0 MONITORING MULTIPLE LOADS WITH
ONE METER
The Class 1000 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 two, 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
Class 1000 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 277 volt
meter cannot monitor a 208 volt load nor can a meter monitor two 277 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 two sensors (one per
phase) the multiplier is not required.