NOIKE Thermal Dispersion Flow Switch NK300B Series

Product Details

Product Description

Product Description
Electronic Flow Switch NK300
What is Thermal Dispersion Flow Switch
Thermal dispersion flow switch is a precise flow sensing device, whose movement principle is heat diffusion. The probe consists of two temperature sensors. One sensor measures the temperature of the fluid when the probe is immersed. The other sensor is heated by a constant power. This creates a temperature difference between two sensors.
Temperature difference is an inverse ratio to the flow velocity. The probe and housing are made by stainless steel or engineering plastic.
This creates a temperature difference between two sensors. Temperature difference is an inverse ratio to the flow velocity. The probe and housing are made by stainless steel or engineering plastic.
6 lamp oil cutoff alarm thermal conductivity type flow switch NK300 type
Thermal Dispersion Flow Switch Working Principle
The thermal dispersion flow switch comprises of two temperature sensors based on the heat transfer principle. One temperature sensor is the reference and measure the fluid temperature where the flow switch probe is immersed in the heat dispersion.
The second sensor of temperature is paced close an element of heating. As the stream is flowing. There will be differences in temperature between the two sensors.
As the fluid flow rate rises, owing to the fluid shifting past the heated sensor, there is a cooling impact. The more the flow, the more the refrigeration.
A decrease in the temperature difference between the two sensors shows that the flow rate exceeds the adjustable set point of the user. When the flow rate drops there is less cooling, which causes an increase in the temperature difference.
There is a distinction in temperature between the two sensors when liquid flows. The difference in temperature has an inverse relation to the velocity of flow (quick flowing fluids will lead in higher variations in heat and vice versa) and the same is used to detect flow.
Since the device contains no moving parts, has no wear and tear and maintains a long lifespan.

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