How to know the power of the electric heating tube?

How to know the power of the electric heating tube?

Some electric heating tubes are not marked when they leave the factory, or how can they quickly know the power of the electric heating tube when they cannot see the voltage and power of the marking after a long time?

Here to use a more commonly used measurement tool, resistance meter. We can find out the power of the electric heating tube by measuring the resistance value.

For electric heating tubes with two terminals, such as cartrige heater and U-shaped electric heating tube, the power of a cartrige heater can be obtained according to the formula: power=voltage*voltage/resistance value through the known voltage.

So how to quickly know the power of the electric heating tube? you can measure the resistance value of the electric heating tube first, and then find the corresponding electric heating tube power according to the different wiring methods.