How to totalize flow from a process signal data logger

You need to know what sample rate your data logger has programmed into it. Now do the following: (in TrendReader for Windows)

1. Graph the file of information and zoom in on the period you wish to determine the total flow for.

2. Enter the following custom equation under EQUATION, NEW EQUATION:

3. After the equation has been written, select FILE, SAVE and make a note of the equation number.

4. Now apply the custom equation to the graph by selecting EQUATIONS, ADD COMPOUND LINE TO GRAPH, and enter the equation number from step 3 and press the Enter (or Return) key. You will then have the following menu appear:

5. Click your mouse once on Source0 and then on pump 2. Then select ACCEPT. You will now have a graph of the flow and totalized flow as shown below:

To determine the total flow, move your mouse to the far right hand side of the “Totalized Flow” line, or view the Graph Statistics and look up the “High” value for the “Totalized Flow” line. Graph Statistics can be seen under VIEW, GRAPH STATISTICS and will appear as shown below: