Some problems
Response from developer
Hello Brett, we apologize for calculation error. We found the bug in the formula and fixed it. We would love to get in touch about your experience and use. Kindly contact us at info@harwellusa.com Thanks!

Calculate temperature to resistance and resistance to temperature for Platinum RTDs using ITS-90 or CVD formulas. Supports custom coefficients and various sensor types, with specific temperature ranges for each calculation method.
2.2
November 15, 2021
- Fixed loading screen/added back button
Hello Brett, we apologize for calculation error. We found the bug in the formula and fixed it. We would love to get in touch about your experience and use. Kindly contact us at info@harwellusa.com Thanks!
ITS90 CVD RTD Calculator is used to convert between resistance and temperature for Platinum RTD sensors. It supports both the ITS-90 and Callendar–Van Dusen (CVD) calculation methods.
For ITS-90 calculations, the temperature input is limited to -189°C to 660°C. For CVD calculations, the temperature input is limited to -200°C to 850°C.
Yes, you can use your own calibrated device coefficients. The app allows you to input custom coefficients for both ITS-90 and CVD calculations if you have a calibrated device.
The app supports a multitude of sensors including IEC 751, Industrial, Standard, Reference, and Secondary Reference probes/sensors.
The accuracy of the calculations depends on the quality of the input data and coefficients. The app provides the tools for precise conversion based on standard or custom parameters.
Based on the provided data, the app is available for mobile devices. Specific platform availability (e.g., iOS, Android) is not detailed but it is a mobile application.
The latest version of ITS90 CVD RTD Calculator was updated on November 15, 2021.
ITS90 CVD RTD Calculator has a rating of 3.0 stars from 1 rating.