DAD 141.1 Technical Manual, Rev. 2.5 – April 2015
Page 34 of 54
10.2.12. AZ Absolute zero point calibration (eCal)
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Index 0x2202
]
The command AZ is used as reference point for all weight calculations and will setup in mV/V.
Permitted values are ± 32 000 (= ± 3.2000 mV/V).
Master (PC / SPS) sends
Slave (DAD 141.1) responds
Meaning
AZ
Z+0.2796
Request: Zero point @ 0.2796 mV/V
CE
E+00017 (example)
Request: TAC counter CE17
CE 17
OK
Calibration sequence active
AZ_00500
OK
New: Zero point @ 0.0500 mV/V
Factory default
: 00000d @ 0.0000mV/V input signal.
10.2.13. AG Absolute gain calibration (eCal)
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Index 0x2200
]
The command AG is used as absolute gain (or measuring range) for all weight calculations and will setup in
mV/V. Permitted values are ± 32 000 (= ± 3.2000 mV/V).
Master (PC / SPS) sends
Slave (DAD 141.1) responds
Meaning
AG
G+0.1868
Request: gain 10 000d @ 0.1868 mV/V
CE
E+00017 (example)
Request: TAC counter CE17
CE 17
OK
Calibration sequence active
AG_+005000
OK
New: gain 5 000d @ 1.12 mV/V
Factory default
: 20 000d @ 2.0000mV/V input signal.
10.2.14. CS Save the Calibration Data
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Index 0x2066
]
This command results in the calibration data being saved to the EEPROM and causes the TAC to be
incremented by 1.
Master (PC / SPS) sends
Slave (DAD 141.1) responds
Meaning
CE
E+00017 (example)
Request: TAC counter CE17
CE 17
OK
Calibration sequence active
CS
OK
Calibration values saved
The CS command saves all of the calibration group values, as set by AG, AZ, CZ, CG, CM, DS, DP and ZT.
The command returns ERR and has no updating action unless it is preceded by the CE_XXXXX.
10.2.15. SU Save User Setup in EEPROM
This command saves all the setup data including calibration non-volatile in EEPROM. In delivery status the
user setup contains the factory default settings (as FD command).
Master (PC / SPS) sends
Slave (DAD 141.1) responds
Meaning
CE
E+00017 (example)
Request: TAC counter CE17
CE 17
OK
Store sequence active
SU
OK
User setup stored in EEPROM
10.2.16. RU Restore User Setup to DAD 141.1
This command restores the user setup including the calibration from the EEPROM, the TAC counter is
increased by +1.To activate, the SR command (warm start) must be performed or just re-start the DAD 141.
Master (PC / SPS) sends
Slave (DAD 141.1) responds
Meaning
CE
E+00017 (example)
Request: TAC counter CE17
CE 17
OK
Restore sequence active
RU
OK
Restore from EEPROM
SR
OK
Activate restored user setup