DAD 143.x User Manual Profinet Rev.1.1.1 March 2023 Page 62 of 95
11 Calibration and Calibration Sequence
The calibration of DAD143.x is only possible after starting a calibration sequence (compare with chapter 8.4).
• Command CE: Calibration enable returns the current TAC value
• Command CM: Calibrate maximum display sets the max. allowable display value
• Command CI: Calibrate minimum sets the minimum allowable display value
• Command DS: Display step size sets the output incremental step size
• Command DP: Decimal point sets the position of the output decimal point
• Command CZ: Calibrate zero sets the system zero point
• Command CG: Calibrate gain sets the system gain
• Command ZT: Zero track enable / disable
• Command ZR: If applicable: Zero Range sets the zero range manually
• Command ZI: If applicable: Initial Zero Range
• Command FD : If applicable: Reset to factory default settings
• Command CS : Save calibration data (TAC counter automatically incremented by 1)
Preparing the calibration:
• Check, if the max value of the display is set sufficiently high (see chapter 8.4.2, command CM)
• Check, if the no motion conditions are defined reasonable (chapter 8.5, e.g. NR = 1, NT = 1000)
• Set the IIR filter frequency to 0.5 Hz (see chapter 8.6, FM = 0, FL = 7)
Example: Setup of zero point, system gain and decimal point
The chosen calibration weight has the value 5000 (increments). That could be 500 g, 5 kg or 5000 kg. We
calibrate with 500 g. The decimal point is set up by command DPx (x = 1, 2 or 3), here 1 figure after the
decimal point. A measured weight of 500 g is displayed as 500.0.
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