9 calibration registers—rdo, Calibration registers—rdo – In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide User Manual
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Register
Size
(registers)
Mode & Access Level
(R/W)
Data
Type
Description
0066
1
R1
ushort
Data Quality ID
0067
2
R1/W3
float
Off line sentinel value (default = 0.0)
0069
1
R1
16 bits
Available Units = 0x0200 (512)
4.9 Calibration Registers—RDO
Values in the calibration registers determine how the sensor parameters are calculated.
Register
Size
(registers)
Mode & Access Level
(R/W)
Data
Type
Description
0118
2
R1/W3
float
Live salinity value (PSU)
0120
2
R1/W3
float
Default salinity value
(PSU, default = 0.0)
0122
2
R1/W3
float
Live barometric pressure (P
B
, mbar)
0124
2
R1/W3
float
Default barometric pressure
(mbar, default = 1013.25)
0126
2
R1/W3
float
100% saturation calibration
reading (mg/L)
0128
2
R1/W3
float
100% saturation temperature
reading (°C)
0130
2
R1/W3
float
100% saturation salinity value
(PSU)
0132
2
R1/W3
float
100% saturation
barometric pressure (mbar)
0134
2
R1/W3
float
0% saturation calibration
reading (mg/L)
0136
2
R1/W3
float
0% saturation temperature
reading (°C)
0138
2
R1/W3
float
Calibration slope (default = 1.0)
0140
2
R1/W3
float
Calibration offset (default = 0.0)
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