EIJKELKAMP Scuba, Руководство пользователя

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3.5.7 Create a custom parameter
Suppose you determined the relationship, specific to your waters, between
conductivity and total dissolved solids (TDS). Or suppose you had an algorithm
relating water level to flow for a certain site. With the Scuba, you can create new
parameters – call them, for instance, My TDS and Site 4b Flow – that will show up on
your home page and logged data just like temperature, pH, and all the other
parameters.
To make this happen, click on the Scuba pull-down menu, and click on Create
Custom Parameter . Follow the instructions to name your new parameter, specify
the units that you wish the new parameter reported in (e.g. mg/l for TDS), and
tell the Scuba how to calculate your new parameter (using mathematical
operators as you would in Excel).
Note: Enclose the entire expression in parentheses. After creating or deleting a
parameter, restart your CPU. Custom parameters cannot be created with the
Amphibian2 Scuba control software.
3.5.8 Delete a custom parameter
Suppose you’re having second thoughts about the customer parameter you created. Click on the Scuba pull-down menu
and click on Delete Custom Parameter . Follow the instructions.
3.6 Software updates
A new Scuba software version (2.2.10), was implemented. The new software makes the following improvements to the
turbidity parameter:
1) The Sensors and Parameters List now contains the parameter “ Turb_FNU ”, which replaces “Turb NTU”.
Turb_FNU is the same measurement as Turb NTU, except altered slightly to make its true ISO 2027 response
linear with formazin.
2) The Sensors and Parameters List now contains the parameter “ Turb_Mod ”, which is the same measurement as
Turb_FNU, except NOT altered to make its response linear with formazin. It is numerically equal to the earlier
parameter Turb NTU.
3) The Sensors and Parameters List now contains the parameter “ Turb_NTU ”. Turb_NTU is the same measurement
as Turb_FNU, except with units of NTU instead of FNU if you prefer that your data are labeled NTU. Calibrating
Turb_NTU also calibrates Turb_FNU, and vice-versa.
4) The Sensors and Parameters List now contains the parameter “ Turb2_FNU ”. Turb2_FNU is the same
measurement as Turb_FNU (or Turb_NTU, if you prefer NTU’s), except multiplied by a Turbidity scale factor.
Turb2_FNU is a unique parameter that helps you match Eijkelkamp turbidity readings with readings from other
types of turbidity sensors for the sake of data continuity.
For instance, suppose you found that an Eijkelkamp turbidity sensor read 89 while another turbidity sensor read
78 in the same sample. The Turbidity Scale Factor is 78/89 = 0.88. You can type that Turbidity Scale Factor into
the Scuba when calibrating Turb2_FNU. Thereafter, all Turb2_FNU readings will be the Eijkelkamp turbidity
readings multiplied by 0.88 to mimic the readings that you would get with the other turbidity sensor.
The software specific to turbidity has changed as well.
In most cases, you can update your Scuba’s software with these new software if you wish to take advantage of the new
features dealing with turbidity.