FT-112(D) Panel Weighing Indicator, Technical Manual, Rev.1.0.0, May 2019
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71
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6.5.2 Zero and Span Adjustments
In this sub-block you can perform zero adjustment or span adjustment without performing full
calibration. Do not perform span calibration if eCal electronic calibration.
Zero
Adjustment
1. Press
key at the [ 621 ZERO ADJUSTM ] prompt to start the zero adjustment.
2. At the [ UNLOAD THE PAN] prompt, remove any weight on the platform, then press
key.
3. The terminal automatically starts to capture zero and the [ WAIT ] message appears during zero
adjustment.
Span Adjustment
1. Press
key at the [ 622 SPAN ADJUSTM ] prompt to start the span adjustment.
2. At the [
LOAD THE SCALE
] [ XXXXXX ] prompt, the test weight value will be used for the
calibration shown on the display. Enter the test weight value via numerical keys. A minimum test
load requirement is 20% of scale capacity for accurate calibration. FLINTEC recommends test
load between 50% to 75% of the capacity.
3. Place the test weights on the scale.
4. Press
to start span calibration. [ WAIT ] message will shown on the display 10 seconds
during span calibration.
Span Adjustment Under Load
This parameter is being used to perform span adjustment of a scale without lifting the load off. This
operation is especially used for span adjustment of a tank / silo which are loaded. You can make span
adjustment without emptying the tank.
1. Press
key at the [ 623 S UNDER LOAD ] prompt to start the span adjustment under load.
2. [ P.ZERO ] prompt appears on the display to indicate the scale load will be determined as
temporary zero.
3. Press
key and the display will show [ WAIT ] message during temporary zero adjustment.
4. At the [
LOAD THE SCALE
] [ XXXXXX ] prompt, the test weight value will be used for the
calibration is shown on the display. Enter the test weight value via numerical keys. A minimum
test load requirement is 20% of scale capacity for accurate calibration. FLINTEC recommends
test load between 50% to 75% of the capacity. Sum of the preload of the scale and test weight
must be less than capacity.
5. Place the test weights on the scale.
6. Press
to start span calibration. [ WAIT ] message will shown on the display 10 seconds
during span calibration.
7. Zero adjustment is recommended after emptying the scale.
