Convert Milliamp to PSI

[jthorpe7527]

I am using signalexpress to read pressure through a pressure transmitter.  The transmitter is a 4 to 20 milliamp transmitter.  On my graph in signalexpress I want to convert/scale the milliamp to psi reading.  I am using the 9203 card.

[DFGray]

You have two options.  You can use a custom scale on your acquisition block (DAQmx Acquire), or you can use the Arithmetic block to scale the data after it is acquired.

[Ingenjör_Hansson]

I'd recommend the function "Scaling and Conversion".
The unit can be changed under Custom Scaling before logging or under Properties for the graph after logging.

//Ingenjör Hansson

[OKors]

Create a "Custom Scale"> Map Ranges> Scaled Units= PSI> Pre-Scaled Values Min/Max= 4/20> Scaled Values Min/Max= consult your datasheet but this will be the min/max range of the xducer at 4 and 20mA.