6
4. Solder the wires to the pin contacts of the connector.
A 5 m or less load cell cable is recommended as the SW-D uses a 4 wire
system (no remote sensing).
5. Tighten the cable clamp locking nut to secure the load cell cable.
6. Close the load cell panel by securing the four screws and cover the screws using
the screw protection caps.
5-3. Verifying Load Cell Output and Input Sensitivity
The input sensitivity is 0.2 µV/division or more. When designing a weighing scale, the
following calculation formula should be satisfied.
The input sensitivity requires a change in output voltage, from the weighing device,
to change the display value as a one digit step. In order to achieve a scale with
stable performance, select the input sensitivity as large as possible.
Calculating formula:
A
: Rated capacity of load cell
B
: Rated output (mV/V)
d
: Minimum division
E
: Excitation voltage (mV) = 5000 mV for SW
-
D
n
: Number of load cells
n
A
d
B
E
×
×
×
≤
0.2
SHIELD
(EXC+) Positive Excitation
(EXC-) Negative Excitation
(SIG+) Positive Signal In
(SIG-) Negative Signal In
Load cell
Pin contacts
Load cell cable
5
SHIELD
4
EXC-
3
SIG-
2
SIG+
1
EXC+
Summary of Contents for SW-D
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