HI 6020IT and HI 6020JB User Guide
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Connecting Load Cell Sensors to a Hardy Summing Box
The diagrams below show Hardy Load Sensors with C2 and non-Hardy Load Cells (4 wire and 6 wire are
similar except 6 wire adds sense wiring) that do not have C2. Wire the terminal connector that plugs into the
front of the Weight Processor Modules by carefully following the Weigh Scale Input termination label.
Non-C2 load sensor wiring
Hardy load sensor with C2 wiring
WARNING:
To prevent ignition of flammable or combustible atmospheres, disconnect power before
servicing
CAUTION:
Observe precautions for electrostatic sensitive devices when handling the summing box
terminal connections
Strain Gauge
Load Cell
Load Cell
Shield
-Exc
+Exc
No Connect
-Sig
+Sig
Shield
+Sen
-Sen
No Connect
-Exc
+Exc
-Sig
+Sig
Factory Installed Jumpers
Hardy Weigh Scale
Input Connector
Load Cell
Shield
-Exc
+Exc
-Sig
+Sig
Shield
+Sen
-Sen
-Exc
+Exc
-Sig
+Sig
Factory Installed Jumpers
Hardy Weigh Scale
Input Connector
+C2
-C2
Strain Gauge
C2 Load Cell
+C2
-C2
