You can estimate the temperature of fluid inside a pipe by measuring its surface temperature using DT sensors. This article covers the recommended equipment, installation best practices, and how to account for the temperature offset.
Who is this article for?
Anyone setting up pipe temperature monitoring using DT sensors.
What do you need?
- Wireless Temperature Sensor combined with the Pipe Range Extender (recommended), or the Wireless Temperature Probe Sensor for some installations
Temperature offset
The difference between the measured pipe surface temperature and the actual fluid temperature is called the temperature offset. The offset is typically several degrees °C and must be factored in when analyzing readings.
The offset is influenced by ambient air temperature, pipe thermal resistance, ventilation, fluid velocity, and the properties of the Pipe Range Extender. In general, the pipe exterior temperature falls somewhere between the ambient air temperature and the fluid temperature inside.
Studio does not have a built-in feature to log offset values — this needs to be handled in a third-party application.
Configuration
Set each sensor to read at your preferred interval. For detecting temperature spikes, measuring every 30 seconds is recommended. See Is it possible to measure temperature more often? article for configuration details.
Installation
Follow the installation guidelines to ensure a robust thermal coupling between the sensor and the pipe:
To minimize temperature offsets and optimize accuracy:
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