TPF / TFB Series Floor Scale Service Manual
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STEPS
1. Center the trim pot by turning the adjustment screw counter clock wise
position until a clicking sound is heard, then turning each of them back
clock wise 10 turns
2. Identify the platform corner numbers.
3. Place a test weight (25% of the scale capacity) on the
corner No.1, then move it to No.2, No.3 and No.4.
Note that displayed reading on each corner.
4. Identify the lowest reading.
If scale corners require to do adjustment,
5. Place the test weight at the location of the lowest weight reading.
6. Turn the adjustment on the potentiometer clockwise to the displayed
weight. It can read the same as the highest reading.
7. Proceed clockwise; repeat the adjustment to all corners of the scale until
reading reach all corners is same. Because the trim pot interact with one
another, any adjustment will affect the weight readings at all four corners
of the scale
Note:
If junction box has two trim ports for each load cell,
want to adjust both ports for each corner.
When moving the test weight (s) from the corner to
corner, do not zero the scale. Corner adjustment is to
adjust the corners to be same, not for calibration.
8. Perform a zero reference check with an unload platform
9. Repeat the corner test to ensure all readings are the same before
proceeding.
10. Ensure all corners are same.
11. Remove all weights
12. Perform a final calibration with test weights and appropriate indicator
manual.
Then you can start your operation
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PLATFORM
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