what does means this on a pt100 1

[dcset]

I have to rewind a winding on a electrical motor and i read on the data sheet, about the pt100 that is pt100 uni 7937 D, and for the pt100 on bearings same but N.
whats the meaning of uni 7937 and D?
please could somebody help me?

 

[itsmoked]

Platinum RTD temperature sensor. The style with 100 Ohms resistance at 0C.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[dpc]

whats the meaning of uni 7937 and D

Manufacturer Part number?

 

[petronila]

Hello dcset,

UNI is an italian norm

Reference tolerance: UNI 7937, IEC 751 norms:
± 15° C at 0° C for A class (1/2 DIN)
± 30° C at 0° C for B class (1 DIN)
± 10° C at 0° C for 1/3 DIN class

Regards

Carlos

 

[panelman]

Must be wrong, a PT100 where ice measures anywhere between -30 & +30 degrees?

 

[itsmoked]

Yeah, that is ridiculously bad performance. Who could possibly use that? I think he meant ± 1.5° C etc., etc.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[burnt2x]

Quick Googling and here are the results:

Reference tolerance: UNI 7937, IEC 751 norms:
± 0.15° C at 0° C for A class (1/2 DIN)
± 0.30° C at 0° C for B class (1 DIN)
± 0.10° C at 0° C for 1/3 DIN class

See how important the dots are!

 

[itsmoked]

LOL

Keith Cress
kcress -

http://www.flaminsystems.com

 

[edison123]

burnt2x - you got a point.

Muthu

http://www.edison.co.in

 

[burnt2x]

No. I added 3 points (dots)! LOL

 

[itsmoked]

Well so did I! Just not in the right places. I wasted mine.

Keith Cress
kcress -

http://www.flaminsystems.com