Using the “offset” switch, Output ranges input ranges in millivolts, Input/output range selection table – Rice Lake Load Cells - 441/442 Bridgesensor Load Cell Input to Analog Out User Manual
Page 2
To set up the 440/441, first determine the recommended exci-
tation voltage for the load cell you are using and select that
voltage using Switch C. The “Excitation Fine Adjust” may
then be used to precisely trim this voltage if desired. Note that
if your load cell is a six-wire bridge (with two sense leads),
you will want to use these leads to allow the module to com-
pensate for leadwire resistance. For four-wire bridges, jumper
the “sense” terminal (6) on the module to the +excitation pin
(7).
Next, determine how much full scale output in millivolts the
load cell will produce at full load. Look in the selection table
below for the setup code of your desired Input/Output range
and set Switches B, D, and E according to the table.
Next, Switch “A” must be set to select voltage or current out-
put, as required.
After all switches are set, adjust the “Zero” and “Span” con-
trols as necessary utilizing a suitable calibrator, simulator or
in actual use with weights and dummy loads.
Finally, the Test Cal control should be set with the Test button
depressed for the desired “Test” level.
USING THE “OFFSET” SWITCH
The “Offset” switch (Switch D) allows cancelling or “taring”
of nonzero deadweights or other sensor offsets. In many cases,
the desired zero, or low end of the output span, may not coin-
cide with zero output from the sensor. For example, a user
may want a 0 to 10 VDC output from the transmitter when a
10 to 100 lb load is placed on the platform. In this case, the 10
lb deadweight results in a nonzero output from the sensor, but
a zero output is desired. Or certain low-output sensors (e.g.,
less than 1 mV/V) may have zero offsets greater than the zero
control can counteract. In these cases, the Offset switch set-
ting may be changed easily from the table values to realign
the zero output by observing the following:
Switch D is the only switch needed to correct zero offset; the
other switch settings are made using the standard procedure.
Switch D does not interact with any other switch. Its only pur-
pose is to adjust or cancel effects of the low end of the input
range NOT corresponding nominally to 0 mV. Setting this
switch to 0 results in no offset.
To RAISE the output zero, rotate Switch D progressively up
(clockwise) from position 1 through 7 until the zero control
can be set for your application.
To LOWER the output zero, rotate switch D up further (clock-
wise) from 9 through F until the zero control can be adjusted
for your application.
OUTPUT RANGES
INPUT RANGES IN MILLIVOLTS
V
m
→
5
-
0
0
1
-
0
0
2
-
0
5
2
-
0
0
3
-
0
0
4
-
0
0
5
-
0
0
0
1
-
0
0
0
2
-
0
0
5
2
-
0
0
0
3
-
0
0
0
3
-
0
±
0
1
±
0
2
h
c
t
i
w
S
→
s
g
n
i
t
t
e
S
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
h
c
t
i
w
S
E
-
D
-
B
V
1
-
0
2
-
0
-
0
A
-
0
-
0
3
-
0
-
0
6
-
0
-
0
E
-
0
-
0
B
-
0
-
0
0
-
0
-
0
8
-
0
-
0
1
-
0
-
0
4
-
0
-
0
C
-
0
-
0
9
-
0
-
0
3
-
3
-
0
B
-
3
-
0
V
2
-
0
2
-
0
-
8
A
-
0
-
8
3
-
0
-
8
6
-
0
-
8
E
-
0
-
8
B
-
0
-
8
0
-
0
-
8
8
-
0
-
8
1
-
0
-
8
4
-
0
-
8
C
-
0
-
8
9
-
0
-
8
3
-
3
-
8
B
-
3
-
8
V
4
-
0
2
0
-
1
A
-
0
-
1
3
-
0
-
1
6
-
0
-
1
E
-
0
-
1
B
-
0
-
1
0
-
0
-
1
8
-
0
-
1
1
-
0
-
1
4
-
0
-
1
C
-
0
-
1
9
-
0
-
1
3
-
3
-
1
B
-
3
-
1
V
5
-
1
2
0
-
6
A
-
0
-
6
3
-
0
-
6
6
-
0
-
6
E
-
0
-
6
B
-
0
-
6
0
-
0
-
6
8
-
0
-
6
1
-
0
-
6
4
-
0
-
6
C
-
0
-
6
9
-
0
-
6
3
-
3
-
6
B
-
3
-
6
V
5
-
0
2
-
0
-
9
A
-
0
-
9
3
-
0
-
9
6
-
0
-
9
E
-
0
-
9
B
-
0
-
9
0
-
0
-
9
8
-
0
-
9
1
-
0
-
9
4
-
0
-
9
C
-
0
-
9
9
-
0
-
9
3
-
3
-
9
B
-
3
-
9
V
8
-
0
2
-
0
-
2
A
-
0
-
2
3
-
0
-
2
6
-
0
-
2
E
-
0
-
2
B
-
0
-
2
0
-
0
-
2
8
-
0
-
2
1
-
0
-
2
4
-
0
-
2
C
-
0
-
2
9
-
0
-
2
3
-
3
-
2
B
-
3
-
2
V
0
1
-
2
2
-
0
-
7
A
-
0
-
7
3
-
0
-
7
6
-
0
-
7
E
-
0
-
7
B
-
0
-
7
0
-
0
-
7
8
-
0
-
7
1
-
0
-
7
4
-
0
-
7
C
-
0
-
7
9
-
0
-
7
3
-
3
-
7
B
-
3
-
7
V
0
1
-
0
2
-
0
-
3
A
-
0
-
3
3
-
0
-
3
6
-
0
-
3
E
-
0
-
3
B
-
0
-
3
0
-
0
-
3
8
-
0
-
3
1
-
0
-
3
4
-
0
-
3
C
-
0
-
3
9
-
0
-
3
3
-
3
-
3
B
-
3
-
3
±
V
5
2
-
0
-
4
A
-
0
-
4
3
-
0
-
4
6
-
0
-
4
E
-
0
-
4
B
-
0
-
4
0
-
0
-
4
8
-
0
-
4
1
-
0
-
4
4
-
0
-
4
C
-
0
-
4
9
-
0
-
4
3
-
3
-
4
8
-
3
-
4
±
V
0
1
2
-
0
-
5
A
-
0
-
5
3
-
0
-
5
6
-
0
-
5
E
-
0
-
5
B
-
0
-
5
0
-
0
-
5
8
-
0
-
5
1
-
0
-
5
4
-
0
-
5
C
-
0
-
5
9
-
0
-
5
3
-
3
-
5
B
-
3
-
5
A
m
2
-
0
7
-
0
-
0
A
-
0
-
0
3
-
0
-
0
6
-
0
-
0
E
-
0
-
0
B
-
0
-
0
0
-
0
-
0
8
-
0
-
0
1
-
0
-
0
4
-
0
-
0
C
-
0
-
0
9
-
0
-
0
3
-
3
-
0
B
-
3
-
0
A
m
0
1
-
2
2
-
0
-
6
A
-
0
-
6
3
-
0
-
6
6
-
0
-
6
E
-
0
-
6
B
-
0
-
6
0
-
0
-
6
8
-
0
-
6
1
-
0
-
6
4
-
0
-
6
C
-
0
-
6
9
-
0
-
6
3
-
3
-
6
B
-
3
-
6
A
m
0
1
-
0
2
-
0
-
9
A
-
0
-
9
3
-
0
-
9
6
-
0
-
9
E
-
0
-
9
B
-
0
-
9
0
-
0
-
9
8
-
0
-
9
1
-
0
-
9
4
-
0
-
9
C
-
0
-
9
9
-
0
-
9
3
-
3
-
9
B
-
3
-
9
A
m
6
1
-
0
2
-
0
-
2
A
-
0
-
2
3
-
0
-
2
6
-
0
-
2
E
-
0
-
2
B
-
0
-
2
0
-
0
-
2
8
-
0
-
2
1
-
0
-
2
4
-
0
-
2
C
-
0
-
2
9
-
0
-
2
3
-
3
-
2
B
-
3
-
2
A
m
0
2
-
4
2
-
0
-
7
A
-
0
-
7
3
-
0
-
7
6
-
0
-
7
E
-
0
-
7
B
-
0
-
7
0
-
0
-
7
8
-
0
-
7
1
-
0
-
7
4
-
0
-
7
C
-
0
-
7
9
-
0
-
7
3
-
3
-
7
B
-
3
-
7
A
m
0
2
-
0
2
-
0
-
3
A
-
0
-
3
3
-
0
-
3
6
-
0
-
3
E
-
0
-
3
B
-
0
-
3
0
-
0
-
3
8
-
0
-
3
1
-
0
-
3
4
-
0
-
3
C
-
0
-
3
9
-
0
-
3
3
-
3
-
3
B
-
3
-
3
Input/Output Range Selection Table