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The latest intelligent electric valve controller
Shenzhen Dongyi Electronics Co., Ltd., established in 1993, is a leading high-tech enterprise specializing in the design, development, manufacturing, and marketing of industrial automation products. As one of the pioneers in China's industrial automation measurement and control instrumentation sector, the company has built a strong reputation for innovation and quality. With numerous national patents to its name (including ZL94212013.2, ZL95228872.9, and ZL00133062.4), it continues to lead in instrumentation technology.
The company employs advanced production techniques and state-of-the-art testing equipment, ensuring that its products deliver excellent performance and reliability. It strictly adheres to the ISO9001 quality management system, reinforcing its commitment to excellence. Over the years, Dongyi has continuously upgraded its product line, with the ZXQ series becoming a popular choice across various industries. These high-performance digital instruments serve as intelligent regulators, DCS, PLC systems, and inverter backup units, offering seamless integration and reliable operation.
The ZXQ series supports direct control of actuators and inverters, enabling smooth transitions between manual and automatic modes without disturbance. This makes it ideal for system startups, shutdowns, and fault handling. Widely used in sectors such as power generation, steel, petrochemicals, and light industry, the product offers intuitive display and user-friendly operation. The positioner can accept DC 4-20mA signals from upper instruments and "three-wire" signals or valve position feedback from actuators, allowing precise valve control and regulation.
Key features include:
1. Control accuracy ranging from 0.1% to 3.0% (adjustable)
2. Compatibility with potentiometer feedback signals (500Ω–10KΩ)
3. Support for external control signals (DC 4–20mA)
4. Adjustable settings for "forward/reverse actuator" and "interrupt" modes (OPEN, STOP, SHUT)
5. Optional electronic system configuration
6. SCR output: AC, 600V, 25A
7. Isolated 4–20mADC output signal for actuator position, fully optically isolated from input
8. Operating temperature: 0–70°C (adjustable), humidity: ≤90% RH
9. Built-in over-temperature protection
10. Dimensions available online
11. User-adjustable calibration via button
12. Smooth manual/automatic switching without interference
13. Actuator stall detection and control
14. Flexible adjustment of accuracy and re-calibration time
15. Secure lock to prevent unauthorized use
16. Intelligent step adjustment for precise positioning based on angular positions
17. Error code indication for quick troubleshooting
18. RS485 communication support for extended functionality
19. Customization options for special requirements
Dongyi Electronics remains dedicated to delivering cutting-edge automation solutions that meet the evolving needs of modern industrial environments. Its focus on innovation, quality, and customer satisfaction ensures continued growth and leadership in the field.