Capacitive Pressure Transducer

  • Thread starter temaire
  • Start date
  • #1
279
0

Main Question or Discussion Point

I'm using a http://www.setra.com/ProductDetails/264_HVAC.htm" to measure pressure differences in a water manometer. However, I am getting outputs in voltage using a voltmeter and want to know how to convert these voltages to pressure in mm H2O.
 
Last edited by a moderator:

Answers and Replies

  • #2
688
1
Your instrument will output a signal between 0 - 5 VDC.

The span may be between 0.1 inwc to 100 inwc. This should be listed on the nameplate.

The instrument will output the maximum span value at 5 VDC and linear values in between.

For example, suppose it is spanned to 100 inwc. The output will look like:

Instrument Output, Differential Pressure
0 VDC, 0 inwc
2.5 VDC, 50 inwc
5 VDC, 100 inwc

Sometimes, if a differential pressure instrument is used for flow rate, there will be a square root function included. Double check, but I did not see this.
 
  • #3
279
0
I figured it out.

Thanks for the reply.
 

Related Threads on Capacitive Pressure Transducer

Replies
2
Views
2K
Replies
1
Views
559
  • Last Post
Replies
1
Views
506
Replies
3
Views
2K
Replies
14
Views
5K
  • Last Post
Replies
3
Views
776
Top