FMG490 INSTRUCTIONS
Page 12
CONNECTIONS
General Cable Information
For the FMG490, a cable needs to be installed from the
terminal block on the remote display interface board to the
15 pin connector inside the remote display. This cable is
referred to as the remote meter cable. There are four wires
in the cable: +REM PWR, - REM PWR, B, and A. There
are an additional 2 cable ports that can be used for power
(DC or AC) and any outputs that are installed on the meter
such as scaled pulse, 4-20mA, HART, and Modbus
®
. (See
Sample Control Cable Wiring Diagrams and Control Cable
Wiring Table.)
Remote
Meter
Remote Meter
Cable
Remote
Display
Power/
Output
Cable 2
Power/
Output
Cable 1
Cable Gland Opening and Sealing
The display is available in either DC or AC versions.
DC version
AC Version
If the meter is configured with AC power, one of the
additional Power/Output cable ports must be reserved
for AC power only. We do not recommend combining AC
power signals with any of the meter outputs in a single
cable. If the meter is configured for DC power, you may
have one or two cables, depending on configuration. (See
Cable Wiring Diagrams.)
Clamp cable with strain relief
clips. Attach drain wire lug to
bracket post.
Remove plug & o-ring. Insert
cable gland/strain relief. Feed
cable through cable gland.
CRITICAL!
Torque cable gland sealing
nut to 22 in-lbs.
WARNING:
Improper sealing of glands or cables will invalidate any warranty.
If plugs or cable glands are removed, reinstall using Teflon pipe sealant, or
tape, to ensure maximum moisture protection.
