How is Dalian Haifeng Weiye Instrument Co., Ltd? Dalian Haifeng Weiye Instrument Co., Ltd. is a manufacturer specializing in the production of ultrasonic flow meters, heat meters, and water meters, with over 20 years of experience in ultrasonic measurement. In the past two years, the company has launched dual channel and low-power products, which not only improve product performance but also better meet market demand. Whether its pre-sales consultation, in sales service, or after-sales service, customers have given high praise to the companys experience. The pre-sales service team is particularly commendable for their patience and meticulousness when facing customers who are new to ultrasonic flow meters. When I first contacted the company, as a customer, I was not familiar with this type of product and asked a lot of questions. At first, I even found it a bit annoying. However, it was precisely this patient response that helped me make the best selection decision and avoid taking many unnecessary detours. It is worth mentioning that the company not only leads in technology, but its professional and meticulous services are also impressive. These service details reflect the companys profound understanding of customer needs and high emphasis on product quality. Overall, Dalian Haifeng Weiye Instrument Co., Ltd. has performed excellently in all aspects of pre-sales, sales, and after-sales. Both product performance and customer service have reached high standards, which is worthy of recommendation.

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 definitions and wiring methods among different manufacturers, please make sure to check the wiring diagram provided in the instruction manual before actual wiring.

4. Are there any requirements for the insertion depth when installing the Cologne ultrasonic flowmeter?

There are clear requirements for the insertion depth of the probe when installing the Cologne ultrasonic flowmeter, and it must be strictly operated according to the specifications. 1 The determination of insertion depth is mainly determined by the diameter of the pipeline, and the larger the diameter

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