idronaut Ocean Seven 304Plus Operator's Manual page 72

APPENDIX D – SEAPOINT TURBIDITY METER
At the end of the list, commands available to perform the configuration are shown:
Initialize:
Modify:
Delete:
Quit:
The following parameters can be configured by means of the "Modify" command:
Sensor code [0...24,255=NU]
Sensor mux. [0...3,255=NU]
Sensor precision [0...6]
The below table reports the values associated to the available sensors/parameters. Following the
introduction of the above parameters, the CTD continues the set-up of the turbidity meter as follows:
Turbidity sensor with multiple measuring scales? [1=Yes,0=No]"
Define if the interfaced turbidity meter has more than one measuring scale. Answer 1 for yes in this
case.
Do you want the automatic range? [1=Yes, 0=No]
In case the turbidity meter has multiple measuring scales, it is possible to leave the CTD the
responsibility to select the most appropriate measuring scale according to the sample under
measurement. Answering 1 for "yes" enables the automatic measuring range adaptation, whereas,
answering 0 for "no" causes the following question to appear.
Turbidity meter scale:(1)>750 FTU,(2)500 FTU,(3)125 FTU,(4)25 FTU
Select one [1..4]
In case there is no need to have the automatic range adaptation, it is possible to select the most
appropriate measuring scale.
Under the service access rights, it is needed to set up the auto-scale set-up time as follows.
Optical Sensor autoscale set-up [0..65535 ms]:0 < 800
D.3 CALIBRATION
Two different calibration procedures are automatically selected by the CTD firmware.
A. Automatic scale management disabled
The STM sensor is calibrated by entering an offset and slope for the selected measuring range
TURBIDITY METER- y=a+bx
(a)=0.000000
(b)=0.000000
B. Automatic scale management enabled
The STM sensor is calibrated by entering an offset and slope for each measuring range.
introduction starts from the >750 FTU.
IDRONAUT – Brugherio (MB)
completely deletes the list.
allows the operator to enter a new sensor/parameter in the list or modify an
existing one. See below for any details about configuration.
allows the operator to delete a configured sensor/parameter from the list.
terminates the data acquisition parameter editing and ends the configuration
command too. The new configuration is stored in a non-volatile memory.
OCEAN SEVEN 304Plus CTD
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12-2015