FMU822 Explosion-Proof Ultrasonic Flowmeter

Ultrasonic flow meters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse).
Clamp-on or tube-segment ultrasonic flow meters are based on the principle of “velocity difference method” to measure the liquid flow in a circular tube. It adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, which makes the flow meter more suitable for the environment of the industrial site, and the measurement is more convenient, economical and accurate. The products have reached the advanced level at home and abroad, and can be widely used in petroleum, chemical, metallurgy, electric power, water supply and drainage and other fields.

Parameter :

Principle Transit-time
Precision Flowmeter:±0.5%; Heat meter:±2%
Display Can connect 2 × 10 backlit Chinese characters or 2 × 20 character LCD, support Chinese, English, Italian three languages
Signal output 1 4 ~ 20mA current output, impedance 0-1K, accuracy 0.1%

1 OCT pulse output (pulse width 6-1000ms, default 200ms)

1 relay output

Signal input 3 channels 4 ~ 20mA current input, accuracy 0.1%, can collect temperature, pressure, liquid level etc.

Can be connected to a three-wire PT100 platinum resistor for heat measurement.

Data interface Isolated RS485 serial interface, the flowmeter can be upgraded through a PC, supporting protocols such as MODBUS
Pipe material Steel, stainless steel, cast iron, cement pipes, copper, PVC, aluminum, fiberglass and other dense pipes are allowed to be lined
Inner diameter of tube 15-1000mm
Straight pipe section Sensor installation point 0 is good: 10D upstream, 5D downstream, 30D from the pump outlet (D refers to the pipe diameter)
Medium Single, uniform liquid that can transmit ultrasonic waves, such as water(-30 ℃ ~ 160 ℃)
Temperature Standard probe: -30 ~ 90 ℃, high temperature probe: -30 ~ 160 ℃
Turbidity 10000 ppm with low bubble content
Velocity -12m/s ~12m / s
Temperature Host: -20 ~ 60 ℃, flow sensor: -30 ℃ ~ 160 ℃
Special cable Shielded twisted-pair cable
Protection class Main unit: IP65; sensor: IP68;
Explosion proof DIIBT5
Power supply DC24V, AC85~264V;50Hz
Power consumption 1.5W

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