Temperature Transmitter Calibration

Have you read the manual or online application notes, it should be in there?

Maybe you should check the calibration first.You can do that by comparing the instruments against some known values.

It should be in the manual that came with each instrument.

If it isn't then a telephone call to the place where they were purchased will provide it.

If that won't work, then try ringing the instrument manufacturer directly, explaining why the supplier won't "play ball"; the manufacturer can amend the relationship to prevent recurrence.

If recalibration cannot be done at site then there are instrument calibration agencies a-plenty in various trade directories and even Yellow Pages. An internet search engine will reveal them too.

If recalibration is a frequent activity and occupying plenty of hours, consider hiring an in-house Instrument Technician onto the team.

If you have their 4-20ma with Hart transmitting versions, they have to be calibrated with a Hart communication device. Been there too many times. We can't seem to budget one for the electrical department, but we do like the Rosemount instruments, especially the Hart devices. Add to this the fact we seem to be able to pick the wrong range about half the time, and /or customers who insist on an in-plant calibration being done. I can tell you what it costs to have a Rosemount distributor come 160 miles to your plant to re-set one of these. We really could have bought a Hart communicator by now - several times.