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FMG490 INSTRUCTIONS
Page 13
CONNECTIONS
Remote Display Wiring
1. On the remote display, unscrew the display lid and
remove it.
2. Remove the 3 screws holding the display assembly
and remove it from the meter exposing the internal
15 pin connector. Be sure to
NOT
undo any
connections to the display assembly as you remove
it.
3. Remove the 15 pin screw connector from the bag.
4. Remove the plug and o-ring from the cable port(s)
where you want to insert the cable(s).
5.
Install cable gland(s) using Teflon pipe sealant, or tape,
and insert cable end(s).
6. Strip cable jacket and conductors and install the
wires into the screw connector in their respective
locations (+Rem Pwr (red), - Rem Pwr (black), B
(orange), and A (blue)).
7. At this point, install any other options using the
Power/Output cable(s) through the Power /Output
cable port(s), and securely screw them into the
screw connector in their respective locations. (See
Cable Wiring Table for details.)
8. If using AC power version continue here. If not, then
skip to step 13. If AC then take the red and black
wires coming out of the AC supply board and install
in POWER+ and POWER- (red wire to pin 15, black
wire to pin 14).
9. When the AC power supply board is installed,
85-264 VAC power is supplied via a user-supplied
3 conductor power cord having local regulatory
agency approval. If installed outdoors or less than
33ft. (10m) from a utility power service entrance, AC
power should be supplied via a properly-grounded
surge suppression device.
10. Remove the plug and o-ring from the AC cable
port.
11. Install cable gland and insert cable end.
12. Strip cable jacket and conductors and install 3
conductor power cable and wire to Line (L), Neutral
(N) and ground (G) positions on power supply
terminal block.
13. Plug the 15 pin screw connector into its socket.
Be sure all pins align properly and that the
connector has not slipped to one side.
14. Plug the backup battery cable into the back of
the display assembly.
(Standard backup batteries
are two 3.6V “D” lithium cells. For the AC option, the
backup battery is one 9V alkaline cell.)
15. Secure the cables inside the internal strain relief
clips and tighten the cable gland sealing nuts
securely (torque strain relief/sealing gland dome
nut to 22 in-lbs). A loose nut could cause moisture
ingress and compromise the meter head’s IP68
rating, voiding the warranty.
16. Remount the display assembly, being careful to not
pinch any wires, and install the display assembly
screws.
17. Reinstall the display lid, being sure to avoid cross-
threading the lid.
Internal
AC wires
15 pin
connector
Power
supply terminal
block (AC versions)
Improper
alignment
Proper
alignment
Backup
battery
connection
Cable Installation
WARNING: BACKUP BATTERIES
ARE NOT INTENDED AS A PRIMARY
POWER SOURCE OF A MAINS
(DC or
AC) CONFIGURED METER.