Page 6-1
CHAPTER 6: CALIBRATION
6.1 CALIBRATION
OVERVIEW
The indicator is calibrated by following the procedures embedded in F16 (Zero) and F17 (Span) of
the Setup Menu. Each procedure enters a value into the indicator's non-volatile memory - F16 the
zero value (deadweight) and F17 the span value (test weight). The minimum test weight that can be
used is 1% of full-scale capacity. The indicator allows for multi-point calibration in F17. These three
calibration points are denoted C1-C3. You may use C1 only if you like. If you do use all three
calibration points, then they must be in ascending order, e.g. 2,000, 5,000 and 10,000 pounds.
After the two calibration procedures are executed successfully, you should record all calibration
values in Table 6-1 using the F18 View procedure.
In the unlikely event that either value is lost while in the field, the setup menu makes provisions for
re-entering these values via F19 and F20, thus eliminating the need for re-calibration with test
weights.
NOTE:
This chapter assumes that the indicator is in Setup (“F”) Menu mode. If the indicator is not
in Setup Menu mode, refer to Chapter 3 for instructions.
6.2 ZERO CALIBRATION (F16)
1. While in the Setup mode, scroll to "
F 16
", then scroll down once using the ZERO key to enter
zero calibration menu. The display will momentarily show "
C 0
" followed by a value. This value
is the internal A/D count and can prove useful when trying to troubleshoot setup problems.
2. After making sure that there are no test weights on the platform, press the ZERO key again to
zero out the displayed value.
3. Press the NET/GROSS key to save the zero point value. The display will show "
EndC0
"
momentarily, then revert back up to F16. At this time, proceed to the F17 span calibration to
complete indicator calibration.
6.3 SPAN CALIBRATION (F17)
1. While in the Setup mode, scroll to "
F 17
", then scroll down once using the ZERO key to enter
span calibration menu. The display will momentarily show "
C 1
" for the first span calibration,
followed by a value with one flashing digit. This value will be zero with the Decimal Point
parameter selected in F10.
2. Place the test weight on the weighing mechanism.
3. Use the four directional keys (shown in Figure 6-1 below) 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/OFF key. Pressing the ON/PRINT key or the TARE key will
change the position of the flashing digit.
SETUP MODE KEY FUNCTIONS
ZERO
GROSS
NET
TARE
SET
UNITS
Figure 6-1: Setup Menu Key Assignments
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