Support Articles — thermocouple

Can I use a Thermocouple Simulator to calibrate my thermocouple based data logger?

Posted on January 1, 2019March 10, 2020 by Thomas King

Can I use a Thermocouple Simulator to calibrate my thermocouple based data logger?

Thermocouple calibrators do not work reliably with most MadgeTech thermocouple loggers. The data logger will pull down the voltage of the thermocouple calibrator enough to alter the reading. While the thermocouple calibrator will recover quickly, the data logger will take the reading before the calibrator has corrected itself. This will lead to an inaccurate reading. Due to this, using a thermocouple simulator is not recommended when calibrating MadgeTech loggers.

Does the probe detect temperature along the whole length of the probe?

Posted on January 1, 2019January 6, 2020 by Thomas King

The temperature is measured at the RTD element for RTD probes, or the thermocouple junction for thermocouple probes. This is typically close to tip of the probe in most cases, so the temperature is measured close to the tip of the probe.

However, response time is typically better if more of the probe is exposed to the environment/product/media/etc.

Is it possible to change the names of the thermocouple channels?

Posted on January 1, 2019January 6, 2020 by Thomas King

The names of the thermocouple channels can be changed to custom values for our “Quad” and “Oct” thermocouple loggers. If the logger contains recorded data, Download the logger before changing the thermocouple names or other properties.

Right-click the logger in Connected Devices and select Properties.
Select the Channels tab in Properties.
For each Thermocouple channel, select “Use custom name” and enter the desired thermocouple channel name in the grey bar above for that channel.
Click the Apply button to apply the changes to the device. This will reset the device and clear any data recorded to the device, so the device should be downloaded prior to making this changes.

Channel names can also be changed for any model, in any report, by modifying the name in the Channels panel. These changes are not saved to the device however, so are specific to that report only. Click the channel name once to highlight the channel, and a second time to highlight the text in the channel name, then modify the text as desired.