CCS WattNode Pulse WNB-3D-240-P, Reference Manual

Page: 30 / 38

30 Operating Instructions
Pulses Per Kilowatt-Hour
NVac
•
PpPO
•
CtAmps
FSHz • 3600 • 1000
PpKWH =
Full-Scale Power Equation
The following equation computes the nominal full-scale power associated with a pulse output
channel. For bidirectional output models, this is the full-scale power for all phases together. For
per-phase output models, this is the full-scale power for a single phase. Note: use
NVac
value
from
Table 7: Power and Energy Parameters
above.
Full-Scale Power (W) = NVac
•
PpPO
•
CtAmps
Power Equation
The following equation computes the power associated with a pulse output. The
PulseFreq
value
may be measured or averaged over different time periods to compute the average power (also
called demand). Note: use
NVac
value from
Table 7
above.
FSHz
NVac • PpPO • CtAmps • PulseFreq
Power (W ) =
Maintenance and Repair
The WattNode Pulse meter requires no maintenance. There are no user serviceable or replace-
able parts except the pluggable screw terminals.
The WattNode meter should not normally need to be cleaned, but if cleaning is desired, power
must be disconnected first and a dry or damp cloth or brush should be used.
The WattNode meter is not user serviceable. In the event of any failure, the meter must be
returned for service (contact CCS for an RMA). In the case of a new installation, follow the diag-
nostic and troubleshooting instructions before returning the meter for service, to ensure that the
problem is not connection related.