RTD Reference
RTD & Thermistor Conversion
$3.99
1.06for iPhone, iPad and more
9.9
1 Ratings
Dohmann Engineering Services
Developer
5.2 MB
Size
Jul 6, 2021
Update Date
Reference
Category
4+
Age Rating
Age Rating
RTD Reference Screenshots
About RTD Reference
This application is a simple, fast, and comprehensive tool for field technicians, engineers and programmers to quickly and easily convert resistance to temperature and vice versa for many popular temperature sensing devices.
It includes support for over 70 types of RTDs (Resistance Temperature Detectors) and 9 types of popular Thermistors (Thermal Resistors). These devices exhibit predictable changes in their resistance depending on their ambient temperature, a characteristic that makes them useful for measuring temperature in many residential, commercial and industrial applications.
Merely select your entry mode (resistance in ohms or temperature in deg F or C) and your RTD or Thermistor type. Your entries are converted to the other two units instantly as you type.
The app supports:
Platinum RTDs – 56 combinations of reference resistance and alphas
Copper RTDs - 4 combinations of reference resistance and alphas
Nickel RTDs - 8 combinations of reference resistance and alphas
Nickel-Iron RTDs (Balco) - 6 combinations of reference resistance and alphas
Thermistors – 9 popular types including two types of 10K thermistors
Although the behavior of RTDs and Thermistors is predictable, they are not linear. This app uses the Steinhart-Hart formula for Thermistor calculations, the Callendar-Van Dusen formula for Platinum RTDs and similar algorithms for the other types of RTDs. All formulas and coefficients used by the app are described in the documentation provided with the app.
A number of lookup charts are included showing resistance vs temperature for many of the most popular types of RTDs.
The app uses 64-bit double precision math to provide the best possible resolution and accuracy for its calculations. However, since the algorithms are curve-fitting approximations, there will certainly be some points at which there are very small (usually insignificant) differences between the calculated values and a manufacturer’s published data table.
You can use the Settings application to change background and text colors, change keyclick sounds, and adjust keyclick volume.
Please send any comments, suggestions or corrections to support@dohmann.com
It includes support for over 70 types of RTDs (Resistance Temperature Detectors) and 9 types of popular Thermistors (Thermal Resistors). These devices exhibit predictable changes in their resistance depending on their ambient temperature, a characteristic that makes them useful for measuring temperature in many residential, commercial and industrial applications.
Merely select your entry mode (resistance in ohms or temperature in deg F or C) and your RTD or Thermistor type. Your entries are converted to the other two units instantly as you type.
The app supports:
Platinum RTDs – 56 combinations of reference resistance and alphas
Copper RTDs - 4 combinations of reference resistance and alphas
Nickel RTDs - 8 combinations of reference resistance and alphas
Nickel-Iron RTDs (Balco) - 6 combinations of reference resistance and alphas
Thermistors – 9 popular types including two types of 10K thermistors
Although the behavior of RTDs and Thermistors is predictable, they are not linear. This app uses the Steinhart-Hart formula for Thermistor calculations, the Callendar-Van Dusen formula for Platinum RTDs and similar algorithms for the other types of RTDs. All formulas and coefficients used by the app are described in the documentation provided with the app.
A number of lookup charts are included showing resistance vs temperature for many of the most popular types of RTDs.
The app uses 64-bit double precision math to provide the best possible resolution and accuracy for its calculations. However, since the algorithms are curve-fitting approximations, there will certainly be some points at which there are very small (usually insignificant) differences between the calculated values and a manufacturer’s published data table.
You can use the Settings application to change background and text colors, change keyclick sounds, and adjust keyclick volume.
Please send any comments, suggestions or corrections to support@dohmann.com
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What's New in the Latest Version 1.06
Last updated on Jul 6, 2021
Old Versions
•Reworked the overall UI for better presentation consistency across devices
•All views now support both portrait and landscape orientation
•Added more info and options to the documents view
•Added the ability to change text colors on the main view
•All views now support both portrait and landscape orientation
•Added more info and options to the documents view
•Added the ability to change text colors on the main view
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Version History
1.06
Jul 6, 2021
•Reworked the overall UI for better presentation consistency across devices
•All views now support both portrait and landscape orientation
•Added more info and options to the documents view
•Added the ability to change text colors on the main view
•All views now support both portrait and landscape orientation
•Added more info and options to the documents view
•Added the ability to change text colors on the main view
1.05
Jan 30, 2021
Added support for iOS 12.0 - 14
Dropped support for iOS versions older than 120
Several UI improvements
Dropped support for iOS versions older than 120
Several UI improvements
1.04
Mar 22, 2014
UI improvements for iOS7 compatibility
Added support for 15KΩ thermistors
Added support for 15KΩ thermistors
1.03
Jul 11, 2013
User can now select a "favorite" RTD Chart from a list of Resistance vs Temperature charts. Just swipe left anywhere across the main RTD Reference display to bring up the list of available charts.
The app also supports emailing and printing the current favorite chart or the app documentation. Printing is done via AirPrint and requires connectivity to an Airprint-enabled printer or a computer running an Airprint simulator.
The app also supports emailing and printing the current favorite chart or the app documentation. Printing is done via AirPrint and requires connectivity to an Airprint-enabled printer or a computer running an Airprint simulator.
1.02
Nov 21, 2012
The app is now a universal app with retina support for iPad and iPhone and full screen support for iPhone 5.
1.01
Mar 12, 2011
RTD Reference FAQ
Click here to learn how to download RTD Reference in restricted country or region.
Check the following list to see the minimum requirements of RTD Reference.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
RTD Reference supports English
