Installation
5
2.0
Installation
2.1
Leveling Scale
Remove the scale from the shipping container and place it in the desired location. Lift off the deck cover and locate
the bubble level. Adjust the four corner feet until the scale is level and all feet contact the support surface so the
scale does not rock. Lock the jam nuts on the feet when the final level is correct.
2.2
Connecting the Load Cell Cable
All models come with 10 feet of color-coded load cell cable.
Do not cut this cable. The load cell is temperature-compensated for an exact cable length of 10 feet.
See your indicator manual to determine the proper load cell cable input connectors. Use the following color codes
to wire the load cell cable.
2.3
Grounding the Scale Base
Bench scales can build up a static electricity charge during weighing operations. If powerful enough, this charge
can travel through the load cell cable to the indicator. To prevent this, all bench scales should be adequately
grounded so that static charges and transient electrical surges can drain directly to ground. Recommended practice
is to connect the scale base to an AC ground circuit using at least #12 wire. All BenchMark scales have either a
grounding screw or a hole for such a grounding screw located on the bottom of the lower frame for this purpose.
Important
For 6-wire operation:
For 4-wire operation:
6-Wire Color Code
Function
Red
- Signal
White
+ Signal
Green
+ Excitation
Black
- Excitation
Blue
+ Sense
Brown
- Sense
Yellow or Bare
Shield
Table 2-1. Load Cell Wiring - 6 Wire
4-Wire Color Code
Function
Red
- Signal
White
+ Signal
Green and Blue*
+ Excitation
Black and Brown*
- Excitation
Yellow or Bare
Shield
* Connect Sense and Excitation wires together
if using 4-wire system without sense leads.
Table 2-2. Load Cell Wiring - 4 Wire
