MX08 Multichannel Weighing System, Technical Manual, Rev. 2.5 Page 41 of 144
Span Adjustment:
If your scale has a span drift, you may perform only span adjustment. After selecting
Span
adjustment
and pressing
Start
button, enter the test weight value; place the test weights on
the scale and press
Yes
button. The [WAIT] message appears on the virtual display
approximately for 5 seconds while span calibration is being performed. After finalizing the
span adjustment, the instrument will save span coefficients automatically.
Note
:
Span adjustment is also performed over field bus commands. Refer to data structure
of related field bus.
Span Adjustment under Load:
This feature is being used to perform span adjustment without unloading the scale. This
operation is especially used for span adjustment for non-empty tanks to make span
adjustment without emptying the tank. After selecting
span adjustment under load
, press
Start
button. Temporary zeroing message appears on the monitor. This means the
instrument will determine the existing load as temporary zero. If the scale is stable, press
Yes
button. The [WAIT] message appears on the virtual display approximately for 5
seconds to determine temporary zero. Then, the span calibration window is displayed.
Load the scale and enter the loaded test weight value, then click
OK
button. The scale
must be stable in this period. Approximately 5 seconds later, the new calibration settings
are saved automatically.
Please refer to the Section 3.7.
Change Capacity / Increment:
This feature is used to change Capacity/Increment without making re-calibration.
5.3.2.4. eCal Electronic Calibration
eCal lets you to perform calibration without using test weights. MX08 AD is adjusted in
production for increasing eCal accuracy. Calibration coefficients are calculated by scale
capacity, total load cell capacity, load cell output and estimated dead load values. If the
conditions are convenient for zero calibration, you may perform automatic zero adjustment
instead of entering estimated dead load.
Figure 4.5 – eCal electronic calibration
After selecting eCal calibration, enter the following values as;
Total Load cell Capacity:
Enter total load cell capacity in kg as the example below.
Example: If the weighing system has 4 pcs 1000 kg load cell, enter 4000 kg.
