Firmware V6.6.9
29.07.2020
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6.2.3.1 Calculation of consumption / power from meter values
Settings on the controller
For the calculation of consumption and power using meter values of energy and quantity meters, the meter
constant and transformer constant in the controller must be set in Menu 4-1-6.
A: Meter constant
The meter constant is used for determining the energy quantity (consumption). The number
of pulses per kWh is determined. The meter constant only needs to be set for pulse meters; M-bus meters do
not have the meter constant!
Unit: pulses/kWh
B: Transformer constant
Corresponds to the conversion ratio of the current transformer, i.e. the relationship of
the current through the consumer (K/L) to the measuring current (k/l). The setting of the transformer constant
for pulse meters can be adjusted in the controller. Settings for M-bus meters cannot be made in the controller
as the necessary adjustments must strictly be made in the meter.
