Model 190 Installation, Technical and Operation
8400-M022-O1 Rev J
4.6.1 Dual-Point with Zero (First Zero) Calibration
This is a standard calibration method requiring one weight, an empty
scale and has one conversion factor. This method uses two calibration
points (CAL1= and CAL2=) to establish a zero (no load) calibration value
and to span the indicator. The two points correspond to zero weight and
the test load or test weight and can be applied in any order. This method
should be used for first-time calibration and complete recalibration.
CAL1= – First Calibration Weight
1. The display will show CAL1=. This is the first of two calibration
weights. This weight could be ZERO (NO LOAD) or the TEST
WEIGHTS (TEST LOAD).
2. Press the TARE key to view the current setting.
3. If the first calibration weight is to be ZERO (NO LOAD), press the
TARE key.
4. If the first calibration weight is to be the TEST WEIGHTS (TEST
LOAD), use the UNITS/ and Fn/ keys to input the value of the
test weights.
5. Place the weights on the scale platform, then press the TARE key.
6. Starting at the left and proceeding right, a series of dashes will
appear on the display.
7. Next, starting at the left and proceeding right, the dashes will
disappear, after which the display will show: CAL2=.
CAL2= – Second Calibration Weight
1. The display will show CAL2=. This is the second of two calibration
weights. This weight could be ZERO (NO LOAD) or the TEST
WEIGHTS (TEST LOAD).
2. Press the TARE key to view the current setting.
3. If the second calibration weight is to be ZERO (NO LOAD), press
the TARE key.
4. If the first calibration weight is to be the TEST WEIGHTS (TEST
LOAD), use the UNITS/ and Fn/ keys to input the value of the
test weights.
5. Place the weights on the scale platform, then press the TARE key.
6. Starting at the left and proceeding right, a series of dashes will
appear on the display.
7. Next, starting at the left and proceeding right, the dashes will
disappear, after which the display will show: CAL3=.
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