Hot Wire Thermal Flow Switch – Overview

Based on the thermodynamic principle, this flow switch features two temperature sensors inside the probe: one is for the medium temperature into which it projects, and the other one is heated a few degrees above the medium temperature. When the medium flows, the heat generated in the sensor is diffused by the medium. The difference between these two sensors is used to measure flow rate. It comes in all-metal housing and is suitable for a variety of pipe diameters.

Hot Wire Thermal Flow Switch  – Features

• The flow switch is suitable for oil, water, gas, and liquid level detection
• Selectable output: PNP/NPN/Relay
• Metal shell design
• Easy installation
• Measuring rod withstands pressure of 10 bar (length can be customised)
• LED light indicator, simple shape
• Can set the switch point or range