Examples of custom equations

Example 1: I have a frequency logger (SmartReader 9) hooked up to my motor, but how do I get my graph to appear in Revolutions Per Minute?

Assumption: 3 cylinder outboard motor produces 3 pulses per revolution

Solution:

From the TrendReader main menu, select , EQUATIONS, New Equations

Type the following equation:

Answer0=Source0/3*60

Answer0 is the final result that will be graphed.  Souce0 is referring to raw frequency recorded. 

The first line of the graph is what will appear in the form of:

        Graph of “Engine Speed” vs time

The second line of the graph is what will appear in the upper left hand corner of the graph.  Below is a sample of what the final graph will look like.

Example 2:

Custom equation 4-20 mA  and  the relation between the input and result is square root)

The correct equation for a SRP logger is:

Answer0=(((Eqn(306)*1000-4)/16)^0.5)*1000