A. Product Introduction:
YHLX vortex precession flowmeter measures low velocity gas flow meter with following features of high accuracy, good repeatability, wide measure-ratio, easy to install & operate, and etc. It is popular in petroleum industry, chemical industry, metallurgy, and city gas supply; It is the preferred product for city natural gas transmission & distribution measurement, either in oil trade measurement.
B. Function Features:
1. Suitable for low-velocity flow measurement.
2. Integration of build-in pressure sensor, temperature sensor and flow sensor, compact configuration & fine shape.
3. Adopting dual-detection and intelligent anti-seismic technology, that effectively improve the detection of signal strength. Barraging jamming caused by pipeline vibration.
4. Adopting LCD display with Multi-lingual version, working condition volume flow, standard condition volume flow, total accumulation & medium pressure, temperature parameters and etc.
5. Output Pulse-signal & 4~20mA standard current signal with RS485 communication interface.
6. Output protection function: Isolated power supply converter with protection circuitry function when over-voltage or over-current.
7. Auto-zero function: Converter with auto-zero function, lightly press button more than 10 seconds in condition of zero-flow pipeline after auto-complete zero setting.
8. Low power consumption, either build-in LI battery supply or external power source.
C. Technical Parameters:
1. Nominal diameter: DN20~DN200
2. Accuracy: ± 1.0% (Priority), ± 1.5%
3. Repeatability: ≤ 0.3%, ≤ 0.5%
4. Nominal pressure: 1.6Mpa, 2.5Mpa, 4.0Mpa, 6.3Mpa.
5. Media temperature: -20° C~+80° C
6. Ambient conditions: -20° C~+55° C; Relative humidity: 5%~95%.
7. Working power: 3.6 V Li battery; 24VDC± 10% (when current output, load resistance ≤ 300Ω Including wire resistance. )
8. Signal output: Pulse output & 4-20mA output.
9. Communication interface: RS485
10. Protection degree: IP65
11. Explosion-proof: ExdIIBT6
Tianjin Yihuan Automatic Instrument Technology Co., Ltd.
1. China national-level new technology enterprise.
2. Given special assistance by Tianjin municipal government. ( Tianjin is the center of Bohai Economic Rim; About 130 km southeast of Beijing -- The Capital of China, by high-speed railway takes 30 mins. )
3. One of the council members of China Instrument Manufacturer's Association.
4. An authorized enterprise by China Measurement Bureau is able to issue velocity-type flowmeters calibration certification. (Equipped with Liquid calibration device with accuracy up to 0.05% and Gas calibration device with accuracy up to 0.5%. )
5. One of the council members involves in drafting China national level protocols and standards to the flow instrument industry.
All Products: Strict standard of material selection; Adopt advanced technology; Standardized manufacturing and quality control. Naturally, our company has gained ISO9001: 2008 certification.
Main products:
Vortex flow meter,
Electromagnetic flow meter,
Vortex&swirl flowmeter,
Turbine flow meter,
V-cone flow meter,
Ultrasonic flow meter,
Metal tube rotameter (variable area flow meter/suspended body flow meter),
Thermal mass flow meter,
Household gas meter, display device, isolator, safety barrier,
Pressure transmitter/differential pressure transmitter,
Resistance temperature meter,
Micro-flowmeter (DIGMESA, Switzerland) As China distributor.
In-situ water quality analyzer (GMAT, Germany) As China distributor.
Arkon flow system battery power electromagnetic flowmeter (ARKON, Czech) As China distributor.
To be OEM.
Patent Sensing-head:
Intelligent & non-contact measured medium vortex flow sensor for measurement is self-developed and produced by ourselves has obtained the national patent, with features of good earthquake resistance, high temperature resistance, high reliability, easy maintenance and others.
