Communication, calibration and HART devices

Asset Management Q&A

Hi. I have a question about HART communicators and devices. Can you help? What's the difference between communication and calibration?

Expert’s answer: Communication, Calibration and HART Devices

Hi there, let me explain the difference between communication, calibration and HART devices.

So, communication means making a connection between a device and a control system to send data, and calibration means checking a device’s ability to measure against a set of technical standards.

You need to compare the calibration range of your device with the standards. If your measurements are out of the standards, then you probably need either zero or span adjustments. Overall, as for communication and calibration, for HART devices and people – both important!

For more information about HART, please visit

Want more information? If so, check these websites:

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HART Devices and Power Supply
Can you have an external power supply for a HART device? Here’s what you need to know!

How to use a handheld and HART together 
Do you need a 250-ohm resistor for your handheld communicator with a HART device? Click through to find out more!

Display or handheld configuration
Do we need a HART communicator if we use a local configuration? Read on to learn more!

What to do when field communicator and HART device access denied?
Want to know why you can’t get full access to my field communicator and the HART device? Then, read on!

Related tags: Adjust Calibration field communicator handheld HART
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