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Flow meter

Flow meter
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Gas Ultrasonic Flow Meter Product Introduction MGUF Gas ultrasonic flow meter is produced by advanced German technology. All its key components are imported from original equipment, featuring high reliability and long service life. It is a new type of precision measuring instrument with high precision and high reliability. It can be widely applied to gas flow measurement in urban gas, petroleum, chemical industry, electric power, metallurgy and other industries. It adopts mono and multi-channel designs respectively, and the length of the pipe section of the mono ultrasonic flow meter can...

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Measurement accuracy grade: 1.0 Ultra-wide range ratio 1:40 Ultra-low "zero" starting flow rate The metering range can cover Roots meter and turbine meter. Double backup lithium battery power supply High precision temperature and pressure compensation, volume correction Intelligent switch of various gas working conditions and standard temp. and pressure Mass storage,saving data for one year Intelligent fault detection, fault alarm Maintenance-free, cleaning-free, long service life The meter can be rotated 180 degrees to facilitate reading. Working Principle 1. Basic Working Principle of...

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Fig. 1 general schematic diagram Using equation (1), the expression of fluid flow rate can be obtained: 2. Accurate Time of Flight Measurement Based on Echo Response The key technology of ultrasonic flow meter is to accurately measure the flight time of acoustic wave in fluid, and the flight time consists of inherent delay ɛ (uncertainty) of sensor and flight time t0 in fluid, as shown in fig. 2.

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Therefore, the uncertain inherent delay ɛ of the sensor and the processing circuit is eliminated, and the flight time t0 of the acoustic wave in the fluid is accurately measured. 3. Multiplex Multi-channel Ultrasonic Flow Meter The ultrasonic flow meter designed by multiplexing multi-channel has the characteristics of high noise resistance, capability of detecting eddy current and asymmetric flow, elimination of uncertain inherent delay of sensors and processing circuits, accurate measurement, etc. At the same time, the multiplexed channel can be used as redundant backup. Even if the...

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P0 ——standard atmospheric pressure (101.325kPa) T0 —— absolute temperature in standard state (293.15K) T ——absolute temperature (293.15+t)K of measured medium t ——temperature of medium to be measured (℃) Fz= Zn ——Gas Compression Coefficient in Standard State Zg ——Gas Compression Coefficient in Working State Technical Performance Specification 1.Measurement Accuracy Grade The accuracy level of measurement within the range is 1.0 0.1Qmax~ Qmax maximum permissible error: ±1.0%, repeatability: ±0.2% 2. Electrical Performance Indicators 2.1 Working power supply Internal power supply: 3.6V...

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signal string mode, normally low level. The pulse output format can be selected, and the volume flow represented by one pulse is set by the output pulse equivalent, namely 0.1m3、 1m3、10m3； The level width is set by the output pulse width, which is 5ms, 50ms and 1000ms respectively, and is used together with the IC card controller. Transmission distance ≤ 5m, powered by internal power supply. Alarm signal output: the output mode is CMOS level output, which is low level in normal time and high level in alarm time. 1) battery undervoltage alarm output: when the battery voltage is lower than...

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See the following table for the model specifications and basic parameters of flow meter: MGUF Ultrasonic Flow Meter (Wide Range) Diameter（mm） 3. Typical Characteristic Curve Typical characteristic curve of flow meter is shown in fig. 4, y coordinate represents the basic error of the meter, and x coordinate represents the percentage of maximum flow.

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