Pneumatica Temperature Transmiter Calibration

Calibration is the same isnt it?

Is just the range that is different.

If in doubt ask the manufacturer.

Some literature that might help:

web.mst.edu/~cottrell/ME240/Resources/Temperature/Temperature.pdf

ww1.microchip.com/downloads/en/DeviceDoc/21895d.pdf

You may look for an AMETEK calibrator they have products on this ranging -90 deg C to 700 deg C also for pressure calibrator.

Thanks... this ametek calibrator is exactly what Im looking for... thanks a million

The Ametek (or any other brand) dry block calibrator that covers a negative temperature range (thanks to Pelletier thermoelectric cooling elements) will provide a traceable temperature source to cool or heat the transmitter's sensing bulb to a specific temperature, but it won't 'calibrate' the pneumatic 3-15 psi output of the transmitter. So, you'll also need a traceable reference pressure indicator like a mechanical test gauge or an electronic pressure calibrator. Wallace and Tiernan's "Wally box" is still used for field grade pressure calibration (now sold under the Wika brand), but any traceable gauge would do the job.

cooling agent /// organic solvent /// temp

ice /// water /// 0^oC

dry ice /// o-Xylene /// -29^oC

http://en.wikipedia.org/wiki/List_of_cooling_baths

Good Luck, Old Salt