2 how to read the kwh/demand meter – E-Mon E20-6003200J-G-KIT User Manual

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GREEN CLASS METER

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62-0415-01

7.2 How to Read the kWh/Demand Meter

Fig. 17. KWh Reading

The Green Class kWh meter displays readings in whole numbers, there are no

decimals.

To find the dollar cost for the power used by the load(s) being monitored, you must first

find out what the cost per kWh is in your area (this cost can be found on your utility

electric bill, or call your local utility and ask for their cost per kilowatt hour.) Simply

multiply the cost per kWh by the kWh reading from the E-Mon D-Mon meter. The

resultant figure is the dollar cost for power used by the load(s) being monitored by this

meter.

Example:

8-digit display reading 00000017

Cost per kWh from utility $0.12100

17 x $0.121 = $2.06

Fig. 18. KW (Demand) Reading

The kW (Demand) reading is the peak usage over a specified time period (15 minute

standard, 30 minute optional). While kWh costs are interpreted as cents, Kilowatt costs

are usually represented in dollars, and interpretation of demand costs are based on

your utility’s tariff and rate structures. You will need to contact your utility to see how

your utility structures their kilowatt demand charges to ensure proper allocation of

costs utilizing data from the E-Mon D-Mon meter.

NOTE: THE FOLLOWING ONLY APPLIES TO METERS USING MORE THAN ONE

SET OF CURRENT SENSORS.

For meters using parallel current sensors you must multiply the kWh display reading by

the number of sets of current sensors installed. With Demand meters, the PEAK

Demand is also multiplied by the number of sets of current sensors installed.

Example:

17(meter display reading) x 2 (sets of sensors in parallel) = 34 kWh

34 kWh x $0.121 (utility cost per kWh) = $4.12

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