Scales - Models 410 and 520
— Operation & Maintenance
3-14
Scale “Short Form” Set Up & Calibration
Unverferth 410 Indicator
• This indicator was calibrated at the factory to weigh accurately with your system. Additional
calibration IS NOT necessary under normal conditions.
The Setup number is a factory preset number based on the combination of load cells on the
grain cart, weight increment (5, 10, 20, 50 lbs. Etc.), and overall weight capacity of the scale
system. We recommend to NOT change this number.
The calibration or “CAL” number is also factory preset and should provide accurate weight read
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ings within 1% for this grain cart. However, if you wish to have the cart weights match more
consistently with the weights from the platform or elevator scale used, the “CAL” number can be
changed. The following procedures should be followed to determine the new “CAL” number. Spe
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cific procedures for changing the “CAL” number can be found in the indicator operator’s manual.
The Short Form Set Up & Calibration procedure allows you to change the “SETUP” and “CAL”
numbers of the indicator. You may want to perform this procedure if;
1) The indicator is being connected to different load cells.
or
2) You want to adjust the calibration to match another scale system.
PLEASE NOTE
: Do not attempt to calibrate the scale if the indicator is not reading stable weights.
The calibration procedure
will not fix instability, inconsistencies, or flashing “RANGE” messages.
Before continuing, first write down the current "SETUP" and "CAL" numbers of your UM
indicator. These numbers are displayed during the "Self Test". To run the Self Test:
With the indicator already ON, press the [FIELD] key until the LB symbol starts to blink.
Release, then press [ON/OFF] key to start the Self Test. Press the [ON/OFF] key to "pause'
the Self Test while numbers are displayed. Press [ON/OFF] key again to allow Self Test
to complete normally.
Verify the SETUP & CAL numbers with the Example table below and record the numbers
on your UNVERFERTH indicator.
SETUP#______________ CAL#___________
Keep this information for future reference.
See next page for more SETUP#'s & CAL#'s.
