Flowlink 5.1 Software Instruction Manual - Isco
Flowlink 5.1 Software Instruction Manual - Isco
Flowlink 5.1 Software Instruction Manual - Isco
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Isco</strong> <strong>Flowlink</strong> <strong>5.1</strong> ® <strong>Software</strong><br />
Graph Window<br />
• Avg Flow - If the selected series contains flow rate data,<br />
select this option to display the average flow rate for the<br />
displayed time span above the graph.<br />
Graph Properties -<br />
Series Formulas<br />
Series formulas can apply mathematical operations to data sets.<br />
With formulas, you can add, subtract, multiply, divide, and/or use<br />
exponentiation, absolute values, and negative integers.<br />
Operations can be grouped with parentheses to control the order<br />
of execution.<br />
Example. Use a series formula to plot the average level recorded<br />
at two sites.<br />
(The example assumes that a blank New graph was created<br />
using the File>New menu option. The following steps start with<br />
the Series tab of the Graph Properties window, although the<br />
General and Time Scale settings should also be defined.)<br />
1. The List of Series and Data Sets box shows S1 and 1A<br />
undefined. Highlight data set 1A.<br />
2. Identify the source of data. Click the Select… button and<br />
locate the level data set for the first site.<br />
3. Click the New Data Set button. <strong>Flowlink</strong> adds data set<br />
1B, highlighted, but undefined.<br />
4. Identify the source of data. Click the Select… button and<br />
locate the level data set for the second site.<br />
5. Highlight series S1.<br />
6. Select Series Formula from the Operation pull-down list.<br />
<strong>Flowlink</strong> displays the Formula entry box.<br />
7. Type the formula in the box using the variables assigned<br />
in the List of Series and Data Sets. For the example, type<br />
(1A+1B)/2.<br />
The following symbols may be used:<br />
+ addition operator<br />
- can be used as a:<br />
subtraction operator, e.g. “1A - 1B”<br />
binary minus symbol, e.g. “1A * (-1)”<br />
unary negation operator, e.g. “(-(1A + 1B))”<br />
* multiplication operator<br />
/ division operator<br />
^ exponentiation operator<br />
| enclose absolute values, e.g. “(|1A * 2^2| * 8)”<br />
( ) parentheses group operations and control the order of<br />
execution.<br />
Notes:<br />
• For best results, always recalculate the data sets using<br />
the averaging statistical function. (Select the AVG button<br />
119