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SCALE SYSTEM CALIBRATION
Calibration Overview
Digital scale system calibration is accomplished in two steps: zero calibration (F16) and span
calibration (F17). You may restore factory calibration values via the B6 menu.
In the unlikely event that any calibration value is lost, the setup menu makes provisions for re-
entering these values via F19 and F20; eliminating the need for re-calibration with test weights.
For dual wireless A/D modules systems (e.g. TI-500 RFTM-2BE), a digital corner calibration fea-
ture is also available. It does not require a specific test weight value, but the maximum weight
that should be used is approximately 25% of the rated capacity of the platform.
An alternative mV/V calibration method has been provided via the F52 menus. This method is
less accurate but does not require use of known weights. Only certain load cell(s) parameters
are needed, usually obtainable from its datasheet or type label.
NOTE
: Please perform corner calibration prior to executing zero/span calibration.
Digital Zero/Span Calibration (F16 and F17)
1. Press and hold the MENU/OFF key to switch off the digital indicator.
2. Press and hold the ON key until the digital indicator beeps and starts to boot up.
3.
During the countdown phase (“555555, 444444”, etc.) press and hold the MENU/OFF
key until the “Set?” message is displayed.
4.
Press the NET/GROSS button while “Set?” is being displayed. The digital indicator dis-
plays “- F – “.
5. Scroll down once using the ZERO key to enter
the “Setup” menu. Scale shows “F 1”.
6. While in the Setup mode, scroll to "
F 16
", and then scroll down once using the
ZERO key to enter zero calibration menu. The display will momentarily show "
C 0
" fol-
lowed by a value. This value is the internal A/D count and can prove useful when trying
to troubleshoot setup problems.
7. Remove all items from the weighing platform and press the ZERO key to zero out the
displayed value.
8. Press the NET/GROSS key to save the zero-point value. The display will show "
EndC0
"
momentarily, and then revert up to F16.
9. Press the PRINT key to progress to the F17 menu.
10. While at the "
F 17
" screen, scroll down once using the ZERO key to enter span calibration
menu. The display will momentarily show "
C 1
" for the span calibration point, followed by
a value with one flashing digit.
11. Place the test weight on the weighing platform.
12. Use the four directional keys to adjust the displayed value to the actual test weight value.
Increase the flashing digit by pressing the UNITS key. Decrease the flashing digit by
pressing the ZERO key. Pressing the TARE key or the PRINT key will change the position
of the flashing digit.
