Platinum RTD Sensor - PT100 Product #3290

General project help for Adafruit customers

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
kabzdog
 
Posts: 1
Joined: Mon Nov 29, 2021 4:55 am

Platinum RTD Sensor - PT100 Product #3290

Post by kabzdog »

Hi,
I am using this platinum RTD sensor for a project, (product #3290) and noticed that the specifications state a ±0.5°C Accuracy from -10°C to +85°C. I needed clarification on where this accuracy measurement came from/how it was calculated and whether it is static accuracy error or not. I want to use it for a project that requires temperature accuracy of ±0.1°C.

User avatar
adafruit_support_bill
 
Posts: 88086
Joined: Sat Feb 07, 2009 10:11 am

Re: Platinum RTD Sensor - PT100 Product #3290

Post by adafruit_support_bill »

That is the manufacturer's stated accuracy for the probe. It represents the maximum deviation from the 0.385Ω/°C sensitivity over the -10°C to +85°C range.

The accuracy of your RTD amplifier will also be a factor in your total system accuracy.

For critical applications, calibration is always recommended: https://learn.adafruit.com/calibrating-sensors

Locked
Please be positive and constructive with your questions and comments.

Return to “General Project help”