Badger Meter M-Series M3000 - Manual (Page 12)

12
Electrode and Coil Wiring From Detector Junction Box to
Remote Mount Amplifi er Juncton Box
A remote mount unit requires electrode and coil cables,
from the detector junction box to the amplifi er junction box,
be enclosed in properly rated conduit. Use conduit fi ttings
(not supplied) that are rated for Class I, Div 2 hazardous
locations.
Failure to use proper conduit fi ttings rated for Class I,
Div 2 hazardous locations, invalidates the FM rating and
any warranties, expressed or implied, for this equipment.
1. Lay out the cable and conduit between the Detector
Junction Box and the Amplifi er Junction Box. Use Belden
#9155 cable or equivalent for electrodes. Use Belden
#8770 cable or equivalent for coils.
2. Run cables through the conduit, between Detector
Junction Box and Amplifi er Junction Box.
3. Place four Nema 6P, 1/2 inch NPT fi ttings on conduit.
4. Remove the four junction box wire port screws, two on
each junction box.
Electrode Wiring in Detector Junction Box
To connect electrode wires in the Detector Junction Box:
1. Unscrew the Detector chamber cover. If necessary, use a
strap wrench.
2. Remove the protective plastic cover to access the
terminal block screws.
NOTE: Plastic cover must be reattached to maintain
hazardous location rating.
3. Strip the cable jacket back 2 inches (50mm).
4. Strip the 4 wires back ¼ inch (6mm).
5. Thread wires through the proper cable access.
Connect the wires to the compression style screw
terminals of the Detector Junction Box.
Electrode wiring in
detector chamber
Coil Wires
Electrode Wires
Red to terminal labeled - E1
Green to terminal labeled - SHLD
Black to terminal labeled - E2
White to terminal labeled - EP
Cable length, between Junction Boxes, may be up to 100
feet (30M).
6. Run cable and conduit to Amplifi er junction box.
Electrode Wiring in Amplifi er Junction Box
To connect the electrode wires in the Amplifi er Junction Box:
1. Unscrew the amplifi er junction box chamber cover. If
necessary, use a strap wrench.
2. Remove the protective plastic cover to access the
terminal block screws.
NOTE: Plastic cover must be reattached when wiring is
complete to maintain hazardous location rating.
3. Strip the cable jacket back 2 inches (50mm).
4. Strip the 4 wires back ¼ inch (6mm).
5. Thread wires through the proper cable access. Connect
the wires to the compression style screw terminals of the
Amplifi er Junction Box.
Electrode Wires
Coil Wires
Electrode
wiring in
amplifier
junction box
Red to terminal labeled - E1
Green to terminal labeled - SHLD
Black to terminal labeled - E2
White to terminal labeled - EP
Coil Wiring in Detector Chamber
To connect coil wires in the Detector chamber:
1. Lay out the cable and conduit between the Detector
Junction Box and the Amplifi er Junction Box. Use Belden
#8770 cable or equivalent for coils.
NOTE: Plastic cover must be reattached to maintain
hazardous location rating.
2. Strip the cable jacket back 2 inches (50mm).
3. Strip the 2 wires back ¼ inch (6mm).
4. Thread wires through the proper cable access. Connect
the wires to the compression style screw terminals of the
detector chamber.