FT-111(D) Panel Weighing Indicator, Technical Manual, Rev.1.0.0, May 2019
Page
67
of
146
6.5 Calibration
Calibration involves emptying the scale then placing a known test weight on an empty platform and allowing FT-
111 to capture values for zero and span. Calibration is performed as;
1. Press
key at the [ 611 TEST WEIGHT
]
prompt to start the calibration.
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.
4. The test weight value will be used for the calibration is seen on the display as [
LOAD THE SCALE
]
[
XXXXXX ] after zero adjustment. Enter the test weight value via pressing
key to increase or press
key
to decrease the blanking digit and press or key to select digit. A minimum test load requirement is 20% of
scale capacity for accurate calibration. FLINTEC recommends test load between 50% to 75% of the capacity.
5. Place the test weight on the scale.
6. Press
key to start span calibration. [ WAIT ]
message will
appear on the display 10 seconds while span
calibration is being performed.
Linearity Correction
Because of the load cell non-linearity or mechanical scale hardware, you may see non linearity on the scale
performance. Multipoint calibration in this parameter improves the scale performance.
1. Press
key at the [
612 LINEARIZATIO
]
prompt to start the calibration.
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.
4. At the [
LOAD 1
]
[ XXXXXX ] prompt, the test weight value will be used for the first step calibration is seen on the
display. A test load requirement is between 35% to 60% of capacity. Load the scale and enter the test weight value
via pressing
key to increase or press
key to decrease the blanking digit and press or key to
select digit.
5. Place the test weights or another practical weight on the scale.
6. Press
key to start span calibration. [ WAIT ] message will shown on the display 10 seconds while the first span
calibration is being performed.
7. At the [
LOAD 2
] [ XXXXXX ]
prompt, the test weight value will be used for the second step calibration is seen
on the display. Place test weight on the platform at least 90% of scale capacity, preferable at scale capacity. Enter
the weight value by pressing
key to increase or press
key to decrease the blanking digit and press
or key to select digit.
8. Press
to start second step span calibration. [ WAIT ] message will appear on the display 10 seconds while the
span calibration is being performed.
