High performance fixed wall mounted ultrasonic flowmeter

High performance fixed wall mounted ultrasonic flowmeter, with powerful functions, fast calculation speed, strong anti-interference ability, and a cycle sampling frequency of up to 128 times, is widely used for online measurement of various liquid flow rates in industrial sites. It is widely used in industries such as tap water, sewage treatment, heating systems, petrochemicals, power plants, mining, papermaking, steel mills, and air conditioning billing.

1、 Instrument Introduction:

The fixed wall mounted ultrasonic flowmeter has been completely redesigned from the circuit board to the software, using imported high-performance and low-power microcontrollers. Adhering to the excellent quality of the previous version, it has improved integration and reduced peripheral circuits. The new product has greatly improved measurement accuracy, stability, anti-interference ability, communication stability, and other aspects compared to the previous version of the ultrasonic flowmeter. It is a powerful, stable, and reliable flowmeter.

The ultrasonic flowmeter has multiple interfaces, such as 4-20mA current loop output, current loop input, 485 digital communication interface, OCT frequency output, and two PT100 interfaces, which can be easily connected to PLC, GPRS communication modules, etc., to achieve wired and wireless monitoring.

There is not much difference in the hardware and software of various models of ultrasonic flow meters, with different packaging forms and slightly different input and output ports. The host can be matched with any type of sensor, including external, plug-in, or pipe segment sensors. External and plug-in sensors can be installed online without the need for disconnection or interruption.

IIHigh performance fixed wall mounted ultrasonic flowmeterWorking Principle:

The fixed wall mounted ultrasonic flowmeter utilizes the principle of low voltage and multi pulse time difference, and adopts high-precision and ultra stable dual balanced signal differential transmission and differential reception digital detection technology to measure the sound wave transmission time in the forward and reverse directions, and calculate the flow velocity based on the time difference.

When the ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in propagation time, which is proportional to the flow velocity of the liquid. At zero flow rate, the time required for both sensors to emit and receive sound waves is the same (* technology that can actually measure zero flow rate); When the medium flows, the transmission time of sound waves in the reverse direction is greater than that in the water flow direction.

3、 Application scope:

The fixed wall mounted ultrasonic flowmeter has powerful functions, fast calculation speed, strong anti-interference ability, and a cycle sampling frequency of up to 128 times. It is widely used for online measurement of various liquid flow rates in industrial sites. It is widely used in industries such as tap water, sewage treatment, heating systems, petrochemicals, power plants, mining, papermaking, steel mills, and air conditioning billing.

4High performance fixed wall mounted ultrasonic flowmeterAdvantage:

1. High reliability, high performance, good applicability, fully displayed in Chinese.

2. The daily, monthly, and annual traffic accumulation function can record the cumulative traffic of the first 64 operating days, the first 64 operating months, and the first 5 operating years.

3. Power outage management function, which can record the time and flow of the first 64 power outages, and can be manually or automatically compensated to reduce flow loss.

4. Effectively overcoming the attenuation of ultrasonic signals by the pipe wall and the scattering of ultrasonic signals by rough surfaces inside the pipeline, reducing the energy consumption of ultrasonic signals from the surface.

5. Improved the accuracy of flow measurement, especially suitable for flow measurement in pipelines.

6. Disassemble under pressure without affecting normal production, and complete online replacement and maintenance at any time.

5、 Performance indicators:

1. Display: 2 × 10 backlit LCD display, switchable between Chinese and English, capable of simultaneously displaying instantaneous flow rate, positive, negative, net cumulative flow rate, flow rate, instantaneous heat and cumulative heat, working status, time and other data;

2. Operation: 4 × 4 touch keyboard (can achieve shortcut key operation)

3. Signal input: 3-channel 4-20mA input, capable of inputting analog signals such as pressure, liquid level, temperature, etc;

2-channel three wire PT100 platinum resistor input;

4. Signal output: isolated 4-20mA or 0-20mA analog output;

Isolation type programmable OCT is used for positive, negative, net cumulative pulses and various alarm signals;

Relays are used for controlling the output of positive, negative, net cumulative pulses and various alarm signals;

Isolated RS-485 data interface output, non isolated RS-232 interface output;

5. Other functions: automatic memory of accumulated traffic and work status for the previous 64 days, 64 months, and 5 years;

Automatically remember the first 64 power on and off times and flow rate;

Can perform manual or automatic replenishment functions;

Programmable batch (quantitative) controller;

6. Fault self diagnosis function;

Capable of MODBUS protocol, FUJI extension protocol, and compatible with communication protocols of similar products from other domestic manufacturers;

By connecting to GPRS devices, wireless transmission can be achieved, and on-site instrument parameters and working status can be viewed at any time on the office computer;

7. Protection level: IP65;

8. Explosion proof grade: ExdIIBT4.

6、 Host:

1. The accuracy is better than 1%, and the repeatability is 0.5%;

2. The measurement cycle is 500ms;

3. Backlit LCD can simultaneously display data such as instantaneous flow and cumulative flow, instantaneous heat and cumulative heat, flow rate, time, etc;

4. The current output is 4~20mA or 0~20mA, with an impedance of 0~K and an accuracy of 0.1%;

5. Can achieve heat measurement or dual-use in one machine;

6. Automatically record the cumulative traffic of the previous 64 days, 64 months, and 5 years;

7. Automatically record the first 64 incoming and power outage times and data usage, which can be manually or automatically replenished to reduce user data loss;

8. Automatically record whether the working status of the flowmeter in the previous 64 days is normal;

9. The factory configuration of the data interface is RS-232 mode, which can be changed to RS-485 mode after selecting an RS-232/RS-485 converter.

7、 Cable:

The model is SEYV75-2 shielded type, and a single cable can be extended up to 500 meters. At the same time, be careful not to run parallel with high-voltage cables and try to avoid frequency converters.

8、 Pipeline:

1. Pipe materials: steel, stainless steel, cast iron, cement pipe, copper PVC、 All dense pipelines such as aluminum and fiberglass are allowed to have lining;

2. Tube inner diameter: 15mm~6000mm;

3. Straight pipe section: The installation point of the sensor must meet the requirements of upstream 10D, downstream 5D, and a distance of 30D from the pump outlet (D refers to the pipe diameter);

9、 Measurement medium:

1. Types: Single and uniform liquids that can transmit ultrasonic waves, such as tap water, seawater, industrial wastewater, acidic and alkaline liquids, alcohol, beer, various oils, etc;

2. Temperature: 0 ℃~160 ℃;

3. Turbidity: ≤ 10000ppm, with low bubble content;

4. Flow velocity: 0~± 30m/s;

5. Flow direction: bidirectional measurement in both directions, and can measure net flow.

10、 Work environment:

1. Host temperature: -30 ℃~80 ℃;

2. Temperature: -40 ℃~160 ℃;

3. Temperature: Select according to user needs;

4. Host humidity: 85% RH;

5. Humidity: Can work submerged in water, with a depth of ≤ 3m;

6. Power supply: AC220V or DC8-36V or AC7-30V.

11、 Installation steps for sensors:

1. Choose a location with sufficient straight pipe length, use new pipes, be rust free, and be easy to operate.

2. Remove debris and rust from the pipeline, and use a corner grinder to remove the rust.

3. Apply enough coupling agent (such as butter, Vaseline, etc.) on the emission surface of the sensor and apply coupling.

4. The purpose of the mixture is to eliminate air between the sensor emission surface and the outer surface of the pipeline.

5. Special reminder: Sand and debris should be avoided from entering this area.

6. There may be some bubbles remaining on the upper part of the inner wall of the horizontal pipeline. When installing on such a pipeline, it should be selected on the surface perpendicular to the side of the pipeline.

12、 Optional external sensor:

External tied sensor is an installation method that directly binds the sensor to the outer surface of the measured pipeline to achieve flow measurement. It has the characteristics of being independent of the pipe diameter, simple installation, no need to stop production, and no pressure loss.

13、 Selection Table:

Example: DS-TDS-100F2-200-M1-0-1-A-L5

Explanation: Explosion proof ultrasonic flowmeter with a diameter of DN200mm, standard M1 sensor as standard, no input, 4-20mA output, 220VAC power supply, signal cable of 5 meters x 2.

12、 Ordering Notice:

1. Product: If there are model standards, please call directly to inquire about prices and learn more details!

2. If there are no product model specifications, please send the operating requirements, design drawings, and technical specifications to our company.

3. Product ordering requires parameters such as diameter (DN), nominal pressure (MPa), temperature (℃), and connection method (flange, clamp, external attachment, insertion, etc.).

4. Quotation confirmation: Our company provides a quotation list and technical standard specifications to the customer for confirmation. After both parties confirm the technical aspects, the contract will be drafted.

5. Quality requirements, quality standards, and conditions for suppliers to be responsible for quality: in accordance with relevant national quality standards.

After-sales service

After-sales service

1. From the date of contract signing, our company provides free maintenance and upkeep services for the products provided, and promises lifelong repair services. 2. The company will regularly communicate with customers to understand the usage of the product and solve any problems that arise during customer use.

3. During the warranty period, if there is any man-made damage, our company is responsible for repairing it and charging the repair costs incurred.

4. If there are quality problems or dissatisfaction with the product, users can choose to return or exchange it unconditionally. The company does not charge any handling fees. If there are quality problems, the company will bear the round-trip shipping costs.