1
Installation
Remove the scale from the shipping container and place it in the desired location. Select a location for the
CW-80B that is reasonably level and free of unnecessary vibrations and air currents.
Leveling
Remove the scale platter and locate the bubble level.
Adjust the four corner feet on the base until the bubble
level on the inside frame of the unit reads level. When
level, the base should not rock and all four feet should
have solid contact with the support surface. If using a
column with the scale, adjust the two column feet until
they make solid contact with the support surface.
Grounding
Bench scales can build up a charge of static electricity 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
grounded so that static charges and transient electrical surges can drain directly to ground.
A chassis ground screw is located on the bottom of the platform (number 26 on the parts diagrams shown on
pages 5 and 6) to facilitate grounding. Use a ground wire of at least 18 gauge copper to connect this screw to
the same earth ground as the attached indicator.
Load Cell Wiring and Specifications
Use the wiring code shown in Table 1 when connecting the CW-80B bench scale to your indicator. Refer to
the indicator manual for information about indicator connections and calibration.
Table 1. RL1380 load cell wiring code
r
o
l
o
C
n
o
i
t
c
n
u
F
n
e
e
r
G
n
o
i
t
a
t
i
c
x
E
+
k
c
a
l
B
n
o
i
t
a
t
i
c
x
E
–
e
t
i
h
W
l
a
n
g
i
S
+
d
e
R
l
a
n
g
i
S
–
w
o
ll
e
Y
d
l
e
i
h
S
Full scale output:
2.0 mv/V
Bridge resistance:
350
Ω
Material:
Stainless steel
Temperature:
14
°
F – 104
°
F / –10
°
C to 40
°
C
(compensated range)
Safe overload:
150% full scale
Rated excitation:
10V AC/DC (15V maximum)
Combined error:
0.03% full scale
Insulation resistance: 1000 M
Ω
Seal type:
Environmentally protected
Cable length:
10 ft / 3m
RL1380 load cell specifications:
!
Caution
Do not lift the scale by the spider assembly
that supports the platter. Lifting by the
spider can damage the load cell. Always lift
under the base
when moving the scale.
