In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide - Manual (Page 32)

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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