Maintenance and replacement parts, 1 replacing a load cell, 2 replacement parts – Rice Lake Translink Parallel Link Truck Scale Assembly User Manual
Page 7: Load cell wiring
7
4.
Drill holes in the concrete pier maintaining the height of the leveling bolts. See
Appendix on page 8, for base plate mounting hole locations. Use concrete stud
anchors or equivalent to secure the base plate. Use no less than a 7/8"x 7" anchor
bolt. Drive each anchor bolt, with the nut and washer on, to firmly set the anchor
in place. Tighten the nuts (finger tight).
5.
Make a final check to see that the girder chairs and base plates are level, the
platform is at the final height, and proper clearance has been maintained.
6.
After building a structure around the base plates to contain the grout, pour the
liquid ground under the base plates. Use good-quality, non-shrinking grout.
Push under the base plate to remove any air pockets.
7.
After the grout has hardend (time specified by grout supplier), tighten all girder
chair bolts and base plate anchors. Back the four leveling bolts out of the grout.
Attach a grounding strap from the girder chair to the base plate. While you are
waiting for the grout to harden, you can start hooking up the electrical
connections (see Section 3, below).
3. Load Cell Wiring
1.
Route the load cell cables so they will not be damaged or cut. Cable should not
be routed near heat sources greater than
150
°
F. Do not shorten any load cell cable.
The load cell is temperature complensated
with the supplied length of cable. Cutting
the cable will affect temperature compen-
sation. Coil and protect excess cable so it
will not be mechanically damaged or be
sitting in water. It is highly recommended
protecting the cables in steel conduit.
2.
Provide a drip loop in all cables so that water or other liquids will not run
directly down the cables onto either the load cells or the junction box. Attach
load cell cable to the dead structure, not the vessel.
3.
For better performance, use positive and negative remote sense lines if the
wiring running from the junction box to the indicator is longer than 25 feet.
4.
Connect cables for load cells to the summing board in the junction box
according to the guide shown below and the labels on the terminal strips of the
junction box. To verify the wiring scheme, see the certification shipped with
each load cell.
s
r
o
l
o
C
e
r
i
W
ll
e
C
d
a
o
L
s
r
o
l
o
C
e
r
i
W
ll
e
C
d
a
o
L
s
r
o
l
o
C
e
r
i
W
ll
e
C
d
a
o
L
s
r
o
l
o
C
e
r
i
W
ll
e
C
d
a
o
L
s
r
o
l
o
C
e
r
i
W
ll
e
C
d
a
o
L
r
o
l
o
C
e
r
i
W
n
o
i
t
c
n
u
F
g
n
i
d
a
e
R
e
v
i
t
a
g
e
N
g
n
i
d
a
e
R
e
v
i
t
i
s
o
P
d
e
R
C
X
E
+
C
X
E
+
k
c
a
l
B
C
X
E
–
C
X
E
–
n
e
e
r
G
G
I
S
+
G
I
S
–
e
t
i
h
W
G
I
S
–
G
I
S
+
e
r
a
B
r
o
y
a
r
G
D
L
E
I
H
S
D
L
E
I
H
S
Figure 3-1. Drip loop cabling
Junction
Box