PT1000 temperature sensor calculation

Hi all,

I am going to use a PT1000 temp sensor for my project. From the data-sheet one can notice that the resistance is 1000ohms when the temperature is 0°C.

Now i want to determine the resistance for, lets say 40°C. Is there a formula or something to determine this?, since it is hard to determine the respective resistance from the graph given in the data-sheet.

(Attached please find the PT1000 datasheet)

Thanks in advance.

hi,
Look at these pdfs

Thanks for your fast reply ericgibbs

I will use the second PDF file which includes the table to calculate the resistance for a specific temperature.

Ericgibbs,

In the attached table (taken from the second attached file), do you know what are the numbers in the x-axes? (i.e. 0 1 2 3 ... 9 0)

Another question; I calculated that the resistance vary 3.9ohms for every degree Celsius ((1000 - 1039)/10). Is that correct??

Thanks

They are increments of 1C from left to right of the extreme left column

eg: 80 81 82 83 84 .....
90

The datasheet suggests +4R/C will be close

Ok. Thanks for explaining.