1. Product Overview

The STG700 series stands as a revolutionary force in the realm of industrial automation, presenting state - of - the - art flow measurement solutions. Crafted with cutting - edge technology and meticulous engineering, this series of flow transmitters is engineered to deliver unparalleled accuracy, reliability, and versatility, meeting the diverse and exacting demands of modern industrial processes.

2. Product Data

2.1 Measurement Range

The STG700 series offers an extensive measurement range tailored to various industrial applications. For liquid flow measurement, it can accurately detect flow rates from as low as 0.1 m³/h to a remarkable 1000 m³/h, ensuring precise monitoring across different flow volumes. In the case of gas flow measurement, the range spans from 1 Nm³/h to 5000 Nm³/h, making it suitable for a wide array of gas - handling processes.

2.2 Accuracy

Achieving an outstanding accuracy of ±0.5% of the reading, the STG700 series provides highly reliable flow data. This level of precision is crucial for industries where accurate flow measurement directly impacts product quality, process efficiency, and resource utilization. Whether it's a small - scale operation or a large - scale industrial plant, the STG700 series ensures consistent and accurate measurements.

2.3 Repeatability

With a repeatability of ±0.1%, the series guarantees consistent and reproducible results under the same operating conditions. This high repeatability is essential for processes that require stable and reliable flow control, minimizing measurement errors and enhancing overall process stability.

2.4 Response Time

The STG700 series features an ultra - fast response time of less than 200 ms. This rapid response allows it to promptly detect and react to changes in flow rate, enabling real - time adjustments in industrial processes. Such quick responsiveness helps prevent process disruptions, optimize production efficiency, and ensure smooth operation.

2.5 Power Supply

It operates on a flexible power supply range of 18 - 36 VDC, making it compatible with common industrial power systems. The power consumption is kept to a minimum, with an average power draw of only 3 W, contributing to energy - efficient operation and reduced operational costs.

2.6 Output Signal

The series offers multiple output signal options, including a standard 4 - 20 mA analog signal, Modbus RTU digital communication, and HART protocol. These diverse output options facilitate seamless integration with various control systems, programmable logic controllers (PLCs), and distributed control systems (DCS), ensuring smooth data transmission and easy system integration.

3. Product Features

3.1 Innovative Flow Sensing Technology

The STG700 series is equipped with an advanced ultrasonic or electromagnetic flow sensing mechanism, depending on the model. The ultrasonic sensors utilize non - intrusive measurement principles, reducing pressure drop and minimizing wear and tear on the pipeline, while the electromagnetic sensors offer high - accuracy measurement for conductive fluids without any moving parts. Both technologies ensure reliable and long - term performance, even in challenging fluid conditions.

3.2 Robust and Durable Design

Built with a rugged, all - metal housing, the STG700 series is designed to withstand harsh industrial environments. It has an IP67 protection rating, providing excellent resistance to dust, water ingress, and mechanical impacts. The transmitters are also vibration - resistant and can operate reliably in a wide ambient temperature range from - 40°C to 80°C, making them suitable for use in demanding industrial settings such as oil refineries, chemical plants, and outdoor applications.

3.3 Intelligent Diagnostic and Self - Calibration

Featuring intelligent diagnostic functions, the STG700 series can continuously monitor its own performance and detect potential faults or anomalies. It also has a self - calibration feature that automatically adjusts the measurement parameters to maintain accuracy over time. This reduces the need for frequent manual calibration, minimizes downtime, and simplifies maintenance procedures, ultimately saving time and cost for industrial operators.

3.4 Wide Compatibility and Adaptability

The series is highly compatible with different pipe sizes, ranging from DN15 to DN300, and can be easily installed in various pipeline configurations. It also supports multiple communication protocols, allowing for seamless integration with existing industrial automation systems. Additionally, it can be customized to meet specific application requirements, such as different flow ranges, output signals, and material options, providing a tailored solution for each industrial need.

3.5 Energy - Saving and Environmentally Friendly

Designed with energy - efficiency in mind, the STG700 series consumes minimal power while delivering high - performance measurement. Its non - intrusive measurement methods also reduce energy losses caused by pressure drops in the pipeline, contributing to overall energy savings in industrial processes. Moreover, the use of advanced materials and manufacturing techniques ensures that the product has a low environmental impact throughout its lifecycle.

4. Applications

4.1 Chemical Industry

In the chemical industry, the STG700 series is widely used for measuring the flow of various chemicals, solvents, and corrosive fluids. It plays a critical role in chemical reactors, distillation columns, and blending processes, ensuring accurate dosing and mixing of chemicals. For example, in a pharmaceutical manufacturing plant, precise flow measurement of raw materials is essential for producing high - quality drugs. The STG700 series' ability to handle corrosive substances and provide accurate measurements makes it an ideal choice for such applications.

4.2 Oil and Gas Industry

In the oil and gas sector, the STG700 series is utilized for measuring the flow of crude oil, natural gas, and refined products. It is installed in pipelines, storage tanks, and refinery processes to monitor flow rates, optimize production, and detect leaks. In offshore oil platforms, where accurate flow measurement is crucial for safety and efficiency, the series' robust design and reliable performance ensure seamless operation in harsh marine environments.

4.3 Water and Wastewater Treatment

For water and wastewater treatment plants, the STG700 series is essential for measuring the flow of raw water, treated water, and wastewater. It helps in controlling the flow of water through various treatment processes, such as filtration, disinfection, and sludge handling. Accurate flow measurement ensures proper dosing of chemicals, efficient treatment, and compliance with environmental regulations. Additionally, its non - intrusive measurement capabilities make it suitable for use in existing water supply systems without major modifications.

4.4 Power Generation

In power plants, whether thermal, nuclear, or renewable, the STG700 series is used for measuring the flow of cooling water, steam, and fuel. In a thermal power plant, accurate measurement of steam flow is crucial for optimizing the efficiency of turbines and boilers. The series' fast response time and high accuracy enable real - time monitoring and control, improving the overall performance and reliability of the power generation process. In renewable energy sources like hydropower plants, it measures the flow of water to maximize power output.

4.5 Food and Beverage Industry

In the food and beverage industry, the STG700 series is employed for measuring the flow of ingredients, liquids, and semi - solids. It ensures accurate batching and dosing during production, maintaining product quality and consistency. For example, in a beverage bottling plant, precise flow measurement of liquids such as juice, soda, and water is necessary for accurate filling of bottles. The series' hygienic design, which meets strict food safety standards, makes it suitable for use in food processing environments.