E-Mon E34-6003200R*KIT - Manual (Page 5)

CLASS 3400 METER
5 62-0391-01
2.0 INTERNAL ELECTRONIC ASSEMBLIES
The units are comprised of two major subassembly boards, the main power board and
the display board. Both circuit boards are mounted inside a NEMA 4X enclosure.
Fig. 1. Internal Electronic Assemblies.
2.1 Main Power Board
Connections to this board include the MAIN Power Input and current sensors.The
MAIN Power Input terminals are positions one through four on the four position screw
terminal block, TB1. These terminals are covered with a protective shield for safety
purposes. The current sensor assemblies interface to the TB1 positions 6 thru 10; care
must be exercised to ensure that each current sensor is connected to the correct
terminals. One three terminal screw connector (RS485) is for RS-485 communications.
One two terminal screw connection (output) is for a pulse output. One RJ-45 jack (J8)
is provided for 10/100-baseT Ethernet.
Fig. 2. Main Power Board Connections.
MAIN POWER
BOARD
DISPLAY
BOARD
M33315
M33271
TB1
POSITIONS
POSITIONS
6-10
PHASE LOSS TB42
J3
J4
J8