
Page
15
AD-4410
Method Merit
Demerit Description
6-wire
configuration
(recommended)
Even if load cell cables
are lengthened or thin
load cell cables are
used, error margins are
kept low.
Error margins are also
kept low where multiple
load cells are used.
Wiring is somewhat
difficult.
When using a
summing box, we
strongly recommend
using the 6-wire
configuration.
4-wire
configuration
Wiring is easy.
The temperature
coefficient will be
negatively affected by
the lead resistance of
the load cell cable.
Contact resistance
from the connector etc.
will also have an effect.
Errors become more
likely when
lengthened load
cells or multiple load
cells are used.
Precautions to be taken when using the 4-wire configuration:
If the 4-wire configuration has to be used, please take the following measures.
- Be sure to connect terminals 1 and 2 (EXC+ and SEN+) and terminals 3 and 4 (SEN- and EXC-).
- When lengthening the load cell cable, try to use cable with a large cross-sectional area.
Also, keep the cable as short as possible.
5.5. Checking the load cell connection
Once the load cell has been connected, perform a connection check using the following
procedure.
1.
Perform a visual check to ensure that there are no wiring mistakes.
2. Turn the AD-4410 ON.
When calibration has not yet been carried out, the display value may be blank. However,
as long as there are no problems with the display, confirmation can still be carried out
using check mode.
3. Confirm the output value of the load cell by using check mode.
Refer to “10.2. Check Mode”, and start check mode for the A/D (load cell).
4. Confirm that the displayed load cell output value matches the specified value.
As a general rule, the displayed value should become the rated output value of the load cell or less.
5. Refer to “10.4. Confirming the load cell connection with a digital multi meter” if there is an
issue with the indicator, and check the connection.
Содержание AD-4410
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