Auto cal mode – Rice Lake BCi Belt Scale - Installation & Operation Manual Version 2.00 User Manual

Page 54

BCi

Installation & Operation Manual

Auto Cal Mode

By selecting the Auto Cal mode, the BCi will calibrate the span using the number of calibration revolutions as
the reference for the calibration duration. Span calibrations are based on belt length defined by the number of
revolutions and use either static weights or test chains. Use the following steps to perform an auto calibration.

1. Press the

Auto Cal

softkey on the BCi display. The BCi will display

Test Weights

Test Chain

, and

Exit

softkeys.

2. After the integrator has run the zero cal, a zero percentage error is displayed.

Figure 5-4. Zero Percentage Error Display

The operator has the option of accepting this error and setting the new dead load value or reject it with no
change made to the dead load.

3. The

Span Cal

softkey will initiate the calibration sequence for the span calibration. This is similar to the

zero cal but there is a load applied to the scale during this process. The load can be static weights, or
chains. To initiate this calibration sequence, press the

Start

softkey.

4. After the integrator has run the span cal, the BCi will display the percentage of span error.

Figure 5-5. Percentage of Span Error Display

The operator can accept the error and the new span value will be stored, or the operator can reject it with
no change made to the span value.

5. The zero and span cal process can be stopped and restarted by pressing the

Stop

softkey and then press

Start

. The process can be aborted by pressing the

Exit=>

softkey.

11/23/2011

08:13AM

Test Time

Test Accumulator

Old Span Error %

Yes

Span Error %

13.50

117.4

3574

25.00

Accept New Zero