In-situ RDO PRO-X, Руководство оператора, Страница: 24 / 29

24
Calibration Registers
Register Size
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 (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)
Live Salinity Value
The live salinity value is used to correct the oxygen concentration value for salinity. Values must be written in Practical
Salinity Units (PSU) in the range 0 to 42 PSU. This is not a measured parameter.
Default Salinity Value
The default salinity value is loaded into the live salinity value register when power is first applied to the probe. The default
salinity value is used in calculations until a live salinity value is written. This is not a measured parameter.
Live Barometric Pressure
The live barometric pressure is used in the calculation of percent saturation and to determine the theoretical saturation point
during calibration. Values must be written in millibars in the range 506.625 to 1114.675 mbar. This is not a measured
parameter.
Default Barometric Pressure
The default barometric pressure is loaded into the live barometric pressure register when power is applied to the probe. The
default barometric pressure is used in calculations until a live barometric pressure is written. This is not a measured
parameter.
100% Saturation Calibration Values
These values represent the sensor conditions while the probe is in a 100% saturation calibration environment. These are not
measured values, they are written by the controller during the calibration process.
Writes to these registers are only accepted if the probe is in the calibration mode. The probe will return exception 0x85 (invalid
device command sequence) if an attempt is made to write these registers when the calibration mode is off.
0% Saturation Calibration Values
These values represent the sensor conditions while the probe is in a 0% saturation calibration environment. These are not
measured values, they are written by the controller during the calibration process.
Writes to these registers are only accepted if the probe is in the calibration mode. The probe will return exception 0x85 (invalid
device command sequence) if an attempt is made to write these registers when the calibration mode is off.