Emerson/Rosemont 644 Temp change DegC to DefF

We have some Rosemont 644 temperature transducers that came in as DegC and I need to chenge them to DegF. They have HART but I don't have any HART equipment right now.

Emerson will do this for a very expensive service call.

Does anyone know if I can just get a USB to HART converter and change it with some free/ relatively cheap software?

Thanks

what is it hooked up, to controller wise?
if it is a hart compatible Logix5000 card I have changed settings via plc code before however going this route on a production system without a HART calibrator to rollback if you change the wrong parameter may be ill-advised.

also some asset management software works with the 1756 hart series cards, but not sure if you can get cheap AMS software

I am assuming you do not have the LCD display on your particular tx.

Your best bet may be to see if a local contractor with some type of hart comms capability can come out and do it for you. I would think this would be your cheapest option as it will be a short service call fee.

We don't connect it to anything. We just make a power unit that has these units. The customer does all the final connections.

They do have displays though.

ndzied1 said:

We don't connect it to anything. We just make a power unit that has these units. The customer does all the final connections.

They do have displays though.

Click to expand...

If you have display on it you can configure it with the pushbuttons. See manual:

http://www2.emersonprocess.com/siteadmincenter/pm rosemount documents/00809-0200-4728.pdf

Page 11 for LOI (display) configuration and page 167 for menu tree. (equivalent of pdf page 21 and 177)

dirt beat me to it

Dirt said:

If you have display on it you can configure it with the pushbuttons. See manual:

http://www2.emersonprocess.com/siteadmincenter/pm rosemount documents/00809-0200-4728.pdf

Page 11 for LOI (display) configuration and page 167 for menu tree. (equivalent of pdf page 21 and 177)

Click to expand...

I had my hopes up for a second. We have transmitters with display code M5 which is display only. With display code M4 you get local operator interface (LOI).
Thanks though.

You could rent a communicator.

Never did it so have no idea how $$$.

https://www.google.com/search?site=...j0i131k1j0i20k1j0i46i67k1j46i67k1.8oKr28X3tEw

Or a salesman sometimes will bring one as long as he/she can show you some new products.