TRH-L-Z turbine flow sensor

The water flow sensor mainly consists of a copper valve body, a water flow rotor component, a steady flow component, and a Hall element. It is installed at the inlet end of the water heater to measure the inlet flow rate. When water flows through the rotor component, the magnetic rotor rotates and the speed changes linearly with the flow rate. The Hall element outputs a corresponding pulse signal feedback to the controller, which determines the size of the water flow rate, adjusts the current of the proportional valve, and controls the gas volume through the proportional valve to avoid the phenomenon of warm summers and cool winters during the use of the gas water heater. The water flow sensor fundamentally solves the disadvantages of high starting water pressure and dry burning caused by misoperation of the flap type water and gas linkage valve. It has the advantages of sensitive response, long lifespan, fast action, safety and reliability, easy connection, and ultra-low starting flow rate (1.5L/min).

Execution standards

Turbine flow sensor (JB/T9246-1999) instrument diameter (mm) and connection method

4. Threaded connections are used for 6, 10, 15, 20, 25, 32, 40, 50, 65, and 80

accuracy class

± 1% R, ± 0.5% R, ± 0.2% R (to be customized)

Range ratio

1:10； 1:15； 1:20

Sensor material

304 stainless steel, 316 (L) stainless steel, etc

Conditions of Use

Medium temperature: -20 ℃~+120 ℃ Environmental temperature: -20 ℃~+60 ℃

Relative humidity: 5%~90% Atmospheric pressure: 86Kpa~106Kpa

Signal output function

Pulse signal, 4-20mA signal

Communication output function

RS485 communication, HART protocol, etc

Working power supply

External power supply:+24VDC ± 15%, ripple ≤ ± 5%, suitable for 4-20mA output, pulse output, RS485, etc

Internal power supply: 1 set of 3.0V10AH lithium batteries, which can work normally when the battery voltage is between 2.0V and 3.0V.

Signal line interface

Basic type: Hausman connector or self-contained three core cable; Explosion proof type: Internal thread M20 * 1.5

Explosion proof grade

ExiaICIT4 or ExdIIBT6

protection grade

IP65 or higher (customizable)