Tufner T909, User Manual

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1. Calibration is no good
2. Cables are not connected
properly
3. Load cell is defective
1. Ensure scale is leveled
2. Check load cell connection
3. Check load cell input and output
resistance
4. If the above actions don’t work, try the
following instructions:
• Check if the cable that runs
from the indicator to the
junction box is damaged. If it
is, replace the cable.
• Check for any water damage
inside the junction box. If
there is, replace the junction
box
• Ensure all wires on all 5
terminal blocks are not loose.
Retighten the screws if
needed.
• Recalibrate
5. If none of the above works, one
or more load cells may be defective
Err1 No weight was used during
calibration or the weight
used was above the max
capacity. Use correct weight within the de fi ned
range
Err2
The weight used during
calibration was below the
minimum required weight.
The calibration weight minimum is 10%
of the maximum capacity set in C04.
It is recommended to use 60%-80% of
the maximum capacity.
Err3
During calibration, the
input signal is negative
1. Check all wire connections
2. Check load cell for damages
3. Recalibrate
4. If none of the above works, the
PCB may need to be replaced
Err4
Signal is unstable during
calibration Start calibration after the platform is
stable
Err5
EEPROM Error Replace the PCB
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