Today is...
Monday, July 15, 2019
Welcome to Control.com, the global online
community of automation professionals.
Featured Video...
Featured Video
A tutorial introduction to programming using the QuickBuilder Programming Environment.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Pressure Transmitter Calibration
Issue checking a datasheet for pressure transmitter submitted by a contractor

I have got a datasheet of a pressure transmitter with Span and Cal Set under the heading Cal Range. The Span is mentioned as 100 - 2000 mbar and Cal Set is 0-200 mbar. Can this be possible as the calibration is outside of the span?

1 out of 1 members thought this post was helpful...

The end use max is within the allowable range of 100-2000 mbar, that part is okay. But you will have to check the accuracy over your calibrated range of 0-200 mbar.

The low end pressure transmitters are typically a tough measurement in an operating plant, so you often settle on what is available for the cost, but it is wise to check it.


1 out of 1 members thought this post was helpful...

It is likely interpreted like this:

The possible ranges can use spans from 100-2000 mbar.
That means ranges can be from 0-100 mbar up to 0-2000 mbar

A range of 0-200 mbar falls within the usable turndown range of the device.

As others have suggested it's well able to measure 0 - 200 mbar. You can use a simple water manometer about 8 ft high to check that.