Doran 2200 Series, Instruction Manual

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To perform the span calibration, place the calibration weight on the platform. Use the
numeric keypad to enter the desired calibration weight and press ENTER. The span
point can be calibrated using any weight between 2% and 100% of scale capacity. Wait
for the display to count down to 0. If the span calibration is successful, the display will
return with
donE
.
If the display returns to
CAL 0
, the A/D is auto ranging, and you will need to repeat the
zero and span calibration process.
NOTE: If
Er dP
appears on the display, the calibration span weight value has an
incorrect decimal point location.
NOTE: If
Er cnt
appears on the display, the calibration span weight value has a count
by resolution greater than that of the indicator's count by resolution.
NOTE: If
Er nEg
appears on the display, the calibration span is in a negative range.
Check polarity of load cell connection (see Fig. 6) and repeat zero and span calibration.
NOTE: If
SPAn E
appears on the display, the calibration span is out of range. Press
ZERO to clear this error. Refer to the A/D Ranging section for additional information.
WARNING: Calibration at 2% of capacity has been provided as a convenience to
customers with high capacity scales in remote or inaccessible locations. Scales
calibrated at 2% of capacity may have more errors at full capacity than scales calibrated
at 25% or 50%. Doran Scales recommends that all scales be calibrated at full capacity
whenever possible.