Communications Manual Rev 3.10 Software Versions 3.xx
Page 30
003R-618-310
8.1.1. Span
Span calibration is performed using REG_CALIBRATE_SPAN as shown in the table
below.
Type of Calibration Parameter Other Registers
Span Calibration using
test weights
none REG_WEIGHT_CALIBRATI
ON
Direct mV/V Span
Calibration
(mV/V * 10,000) as
hexadecimal value
REG_FULLSCALE
eg. Execute a Span calibration using a scale base of 2500 g. Assume that the
indicator has Units = g, Decimal Places = “000000”.
Command = 10
H
CMD_EXECUTE
Register Id = 0103
H
REG_CALIBRATE_SPAN
Set span weight
20120100:9C4
REG_WEIGHT_CALIBRATION
Add test weights
Execute
20100103:
REG_CALIBRATE_SPAN
Sample Response
81100103:0000
Indicator shows “S. in P”
Check Status by reading
20040021:
Sample Response while
calibrating
81040021:00002000
Indicator is Calibrating
Sample Response when complete
81040021:00000000
Calibration finished, no errors
InternalErrorCode field = 0 showing that the calibration was successful.
eg. Execute a Direct Span calibration at 3.0 mV/V. Assume that
REG_FULLSCALE already contains 3000 decimal.
Command = 10
H
CMD_EXECUTE
Register Id = 0103
H
REG_CALIBRATE_SPAN
Parameter Field = 7530
H
(3.0 * 10000 = 30000 decimal)
Execute with direct mV/V
20100103:7530
REG_CALIBRATE_SPAN
Sample Response
81100103:0000
Check Status
20040021:
REG_SYSTEM_STATUS
Sample Response
81040021:00000C00
InternalErrorCode field = 0 showing that the calibration was successful.