12
TARGET BIN SCALE RF rev.09
TARGET BIN SCALE RF
5.6. Bin Calibration
It is possible to calibrate bin scales using one
or 2 reference weights:
1. The 1-point calibration mode allows
calibrating a bin scale with only one refer-
ence weight: the weight of the feed that is
currently present in the scale. This type of
calibration can be performed at any time.
2. The 2-point calibration mode allows using
two reference weights: the empty bin weight
and the loaded bin weight; the bin has to be
empty prior to the calibration.
5.6.1. 1-Point Calibration
The 1-point calibration can be performed at any
time, as long as you know the amount of feed
present in the bin. If you don't know what is
the exact amount of feed, you can estimate it:
in that case, disable the "Low Level" option in
section 5.5 and be sure to re-calibrate the scale
as soon as the bin gets empty.
Repeat the 1-point calibration each time
the scale gets empty and its weight read-
ing is other than 0 kg (or 0 lbs).
1. From the main menu, select:
» 7. Installation*
» 2. Calibration.
» x. Select the desired bin
» 1. Bin #x One Point
*This menu is only accessible from the installer
mode (see sec. 5.2).
7.2.1 Calibr Bin 1
Nb Load Cells :
4
Sen. LC1 :
3.0000
Sen. LC2 :
3.0000
Sen. LC3 :
3.0000
Sen. LC4 :
3.0000
Max Cap. : 10000 lbs
[or 4536 kg]
Tare :
0 lbs
Offset:
68764115
Stability tol: 2000
Push + for next step
Calibrate ? No
2. Set the following parameters:
Number of Load Cells: —
Select the number
of load cells that are supporting the bin (from
1 to 8 load cells).
Sensitivity of Load Cells —
Enter the sensi-
tivity of each load cell. The sensitivity value
is specific to each load cell and is indicated
on the load cell's calibration certificate. It is
also written on each one of them.
Maximum Capacity —
Enter the maximum
weight capacity of load cells. This value is
indicated on the calibration certificate en-
closed with each load cell and it is written
on each one of them. The maximum capacity
is common to all load cells.
The maximum capacity is often given in
pounds. If your controller uses the metric
system, be sure to convert this value
properly. For instance, 10,000 pounds
corresponds to 4,536 kilograms.
Tare—
Specify the amount of feed that is cur-
rently present in the bin scale (do not include
the weight of the bin).
Offset —
The offset is a parameter that al-
lows you to recover your calibration settings
after installing a new configuration in your
controller. This value is automatically defined
by the controller after having calibrated the
scale.
29
TARGET BIN SCALE RF rev.09
TARGET BIN SCALE RF
Voltage checkup
LCT-3
RED
GREEN
WHITE
SHD
BLK
WHT
GRN
RED
BLACK
B
LK
W
H
T
G
R
N
R
E
D
B
LK
W
H
T
G
R
N
R
E
D
L1
V
REF
J9
V
IN
V
OUT
JX
LCJB-8
Load Bar
V
div2
V
div1
V
REF
reading on the LCJB-8 module
Param-
eter
Specification
Load
bar
1
Load
bar
2
Load
bar
3
Load
bar
4
Load
bar
5
Load
bar
6
Load
bar
7
Load
bar
8
Input
voltage
(V
in
)
V
IN
V
REF
V
REF
should be between
4.3 and 5V, depend-
ing on the gauge and
length (L1) of the wire
Output
voltage
(V
out
)
15mV max
V
out
should be between
0.0 and 15.0mV de-
pending on the weight
of the bin
Divided
Voltage
(V
div1
)
V
div1
should be
close to V
REF
/2
Divided
Voltage
(V
div2
)
V
div2
should be
close to V
REF
/2
