E-Mon E34-6003200R*KIT - Manual (Page 38)

CLASS 3400 METER
62-0391-01 38
12.0 CLASS 3400 METER EXPANSION
BOARD
The Class 3400 Meter Expansion Board option adds a number of new features to the
meter.
Pulse Input
The board contains two pulse inputs for connection to external metering devices which
have a dry-contact type of output pulse. The maximum frequency of pulses accepted
by the Class 3400 meter is 10Hz.
Pulse Output
The board contains two pulse outputs for use by Building Automation Systems, etc.
One pulse is in watt-hours, the second pulse is in VAR-hours. They are not polarity
dependant. The maximum current allowed is 400ma and the maximum voltage allowed
is 40 VAC or VDC.
Alarm Relay / Load Control
There are two form “C” relays on the expansion board. They are designed to be used
for alarming or load control functions on circuits up to 250VAC and 3 amps.