3. AD ERR
：Communication with internal A/D failed. (Reboot the unit)
4. CAL ERR
：Invalid written data in ROM.
5. ROM WERR ：ROM write failure.
6. ROM RERR ：ROM read failure.
7. ROM EERR ：ROM erase failure.
8. SYS ERR
：Internal process error.
9. BAD CALD ：Calibration failure due to the abnormal ROM data.
8. Miscellaneous Materials
ZERO adjustment of strain gauge sensor
The sensor generates a slight voltage even if no load is applied.
When there is a tare weight such as a weight measuring device, the voltage equivalent
to the tare weight is generated. The zero adjustment range of TD‑35 is ±5mV/V (±
10000×10
−６
strain). In case it does not meet the zero adjustment within this range,
as shown in the figure below, the zero point shift resister that corresponds to the
sensor output can be externally connected so that the zero point is shifted
electrically.
RZ is connected to only one side depending on the direction of the sensor. The direction
of zero shift changes depending on the connection either between ‑SIG(B) and +EXC(A)
or ‑SIG(B) and ‑EXC(C). The RZ is to be connected between ‑SIG and +EXC(B‑A) when the
imbalance needs to be canceled such as in subtracting tare weight of measuring weight
devices (tare weight appears as positive in sensor output).
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