User guide

AccuMeter Controller Chapter 11: Configuring a new PLC 68
CALIBRATE SCALE Tab
• CALIBRATION WEIGHT VALUE. This is the weight that was used during the last
scale calibration. This can be changed just by entering in a new value.
• ZERO BITS. This is the stored value in bits that was recorded when the hopper was
empty during the last scale calibration.
• CAL BITS. This is the stored value in bits that was recorded when the calibration
weight was hung on the hopper during the last calibration.
• SET “Zero bits”. Touch this button after emptying the hopper to record the ZERO
BITS.
• SET “Cal bits”. Touch this button after you hang the calibration weight on the hopper
to record the CAL BITS.
• CURRENT BITS. Displays the current measured bits of the loadcell input. The max
value is 32767
• CURRENT WEIGHT BASED ON CALIBRATION. Displays the current weight
based on the CURRENT BITS, ZERO BITS, CAL BITS, AND CALIBRATION
WEIGHT VALUE.
• NOTE ON CALIBRATING: You can modify any of these values at any time by
simply entering new values. This is useful after a software upgrade so that you don’t
have to recalibrate each hopper. Also during a calibration you do not have do STEP 1
before STEP 2, but the hopper must be empty (no material) for both steps. Also you
can manually enter in the recorded bits by observing the CURRENT BITS and then
entering it into each cell if desired, but should not ever need to be used.