CLASS 320 METER
3 62-0397-02
1.0 INTRODUCTION
The Honeywell Class 320 meter is a 3-element meter with communications. The
device is used to monitor electric power usage of individual loads after the utility meter
and store kW and kVAR data for automatic meter reading. Installation must only be
performed by qualified personnel and in accordance with these instructions and all
applicable local and national electrical codes. E-Mon and its representatives assume
no responsibility for damages or injury resulting from the improper installation of this
meter.
Verify the input voltage rating and configuration on the unit panel label to ensure that it
is suitable for the intended electrical service. For example, Class 320 meters labeled
for 120/208V service MUST NOT be installed on service feeds of 277/480 volts or 347/
600 and vice versa.
Verify that the Class 320 meter’s current sensors are sized suitably for the load to be
monitored. Compare the color of the arrows on the current sensors to the chart below
to confirm the correct current sensor is being used.
Meter Labeled: Works On:
120V 120V, Single Phase
120/240V 120/240V, Single Phase
277V 277V, Single Phase
208V 208V, Three Phase
240V 240V, Three Phase
400V (380V,415V) 400V, Three Phase
480V 480V, Three Phase
600V 600V, Three Phase
Sensor Arrow Color Code Sensor Rating
Brown 100 A
Red 200 A
Yellow 400 A
Black 800 A
Blue 1600 A
White/Black 3200 A
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