Cardinal 185 Installation And Technical Manual page 12

Load Cell Cable Connection
The following instructions describe the load cell connection through a standard gland
connector. Refer to Figure No. 2 for illustration of connector layout.
1. Remove the four (4) Phillips screws securing the back panel to main housing, and then
loosen the center gland connector for the load cell cable. Refer to Figure No. 2 for
illustration of connector layout.
2. Slip the single cable from the load cell or load cell junction box through the gland connector
and into the enclosure.
3. Remove 2" (50mm) of the outer insulation jacket,
then remove 1/4" (6mm) of insulation from each
of the 4 wires and shield (without sense leads) or
6 wires and shield (with sense leads). Refer to
Figure No. 4.
4. Connect each of the wires to terminal block P2
referring to labels on circuit board for terminal
connections. Refer to Figure No. 5 for terminal
block location.
5. To terminate a wire, first press down on release
bar for the terminal, insert wire into terminal
opening then allow release bar to return to its
original position, locking wire in place. Repeat
procedure until all of wires are in place.
6. Attach the included tubular snap-on ferrite core to
the outer insulation jacket inside the enclosure
near the end of the jacket. Make sure sufficient
pressure is applied to completely latch the core
to the cable. See Figure No. 6.
Tubular Snap-on
Ferrite Core
Figure No. 6
TERMINAL NO.
1 – +EXC
2 – +SEN
3 – +SIG
4 – SHLD

NOTE: If the sense leads are NOT used, you must install plug-in jumpers at J1 and J2
adjacent to the terminal block. These jumpers attach the sense leads to the excitation leads.
If sense leads ARE used (as in motor truck scales), these plug-in jumpers should be
positioned on one plug-in pin only or removed and stored for later use (see Figure No. 9).
Load Cell Connections with Over 30 Feet of Cable
For installations with over 30 feet (9 meters) of cable between the indicator and the load cells,
sense wires should be used. The sense wires must be connected between the +SENS, -SENS
terminals on the indicator and the +EXCITATION, -EXCITATION wires of the load cells or the
+SENS, -SENS terminals of the load cell trim board or the section seal trim board.
8400-0181-OM Rev C  185 and 185B Installation & Technical
8
Load Cell
Cable
LOAD CELL TERMINAL BLOCK P2
Function
+ EXCITATION
+ SENSE

+ SIGNAL
SHIELD (Connect the load cell cable shield wire here).
2"/50mm
1/4"/6mm
Figure No. 4
Press Down Here
Figure No. 5
TERMINAL NO.
5 – -SIG
6 – -SEN
7 – -EXC
Insert Wire
Function
- SIGNAL
- SENSE

- EXCITATION