Company Profile

1. Is the Guangzhou Nanyi flowmeter a miscellaneous brand?

The Guangzhou Nanyi flowmeter is not a miscellaneous brand. 1. In the search results for enterprise background, it is clearly mentioned that two flowmeter companies related to "Guangzhou Nanyi" have certain strength: • Guangzhou Nanyi Automation Instrument Co., Ltd.: As a flowmeter professional manufacturing enterprise under the jurisdiction of Guangdong Petrochemical Special Equipment Company of China National Chemical Equipment Corporation, with standardized production technology, advanced equipment, and the first set of standard meter gas flow standard devices in Guangdong Province. It has strong technical strength and a professional team of engineering and technical personnel. Since the mass production of vortex flowmeters in the 1980s, continuous product updates and upgrades have been carried out. The products are widely used in various industries such as petrochemicals, power, metallurgy, and pharmaceuticals, and have received praise from many users. They have also obtained relevant qualification certificates, such as the "Production License for Manufacturing Measuring Instruments". • Guangzhou Nanyi Flow Meter Co., Ltd.: Mainly engaged in various flow meters such as electromagnetic, vortex street, orifice plate, ultrasonic, etc., with its own technology and sales team, product sales cover multiple regions across the country.

2. In addition to the two companies mentioned above, the flow meter produced by an enterprise called "Nanyi Sensing" has also been recommended by relevant brands in 2025 and has accumulated experience in sensor technology. Its flow meter performs well in measurement sensitivity.

3. Industry Applications and Qualifications Guangzhou Nanyis flow meter products are widely used in industries such as petrochemicals, power, metallurgy, and medicine, and have received praise from users.

2. Ultrasonic flowmeter

3. Wiring diagram of ultrasonic flowmeter

Ultrasonic flowmeter wiring is mainly divided into two parts: host wiring and probe wiring. There are differences between different brands and models, and the product manual must be followed for accuracy.

1.

2. Terminal 3 (GND, DN -, DN+), usually only need to be connected to DN - and DN+(terminals 2 and 3) - Upstream probe connected

4.

5. Terminal 6 (GND, UP -, UP+), usually only need to be connected to UP - and UP+(terminals 5 and 6) 4-20mA output: AO terminal connected to signal positive pole, 24V - terminal connected to signal negative pole 485 communication: connect 485 OUT A and 485 OUT B terminals Heat meter function: - Water supply terminal connected to TX

1. T

1. GND - Return terminal TX

2. T

2. GND (supply and return GND are connected together) Relay output: Connect RELAY+and RELAY - terminals 2. Probe wiring Probe cables usually include shielded wires, signal positive (+) and signal negative (-) terminals. Conventional connections only require connecting the+and - terminals, and shielded wires can be omitted. Due to possible differences in terminal de

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