Display control instruments, as important components of detection and control products in industrial process automation systems, have left a profound mark and played an irreplaceable role in many industries, including national defense, steel, power, petrochemicals, machinery, pharmaceuticals, textiles, metallurgy, and printing and dyeing. They are like the intelligent eyes and dexterous hands in industrial production, capable of sensitively perceiving changes in various physical quantities and quickly and accurately regulating relevant equipment.
The core functions of display control instruments include comprehensive processing of various signals such as temperature, pressure, liquid level, and speed on – site. First, they accurately collect these signals to ensure the acquisition of the most real and accurate data. Then, they display the data in a clear and intuitive manner. Whether it is through pointer, recording pen, printing, or display screen, operators can clearly understand the current operating status of the system at a glance. In terms of control, they precisely control relevant equipment based on preset parameters and algorithms, ensuring that the entire production process runs stably in accordance with established technological requirements. They also have a remote transmission function, which can transmit the collected data to a remote monitoring center, facilitating managers to grasp the production situation anytime and anywhere. The communication function enables display control instruments to conduct efficient data interaction with other devices, constructing a large – scale and intelligent industrial automation network. The printing function provides convenience for data preservation and analysis, facilitating subsequent traceability and optimization of the production process.
To meet the diverse needs of different industries and scenarios, display control instruments exhibit many remarkable features in technology and design. In terms of anti – interference ability and reliability, they adopt IC chips with higher integration, advanced SMT surface – mount technology, and unique circuit shielding technology. The comprehensive application of these technologies makes display control instruments seem to wear a solid “protective armor,” enabling them to work stably for a long time in an electromagnetic – interference environment and ensuring the accuracy of data and the reliability of control. Their universal input jumper settings are highly innovative. Each instrument can easily achieve input of various indexing numbers, standard signals, remote – transmission pressure signals, and millivolt signals through simple and quick parameter settings, greatly improving the instrument’s versatility and enabling it to adapt to complex and changeable industrial environments. The modular universal circuit structure is also a major highlight. Through simple module combinations, various functions of the instrument can be transformed, from basic measurement and display functions to complex control and communication functions, which can be flexibly adjusted according to actual needs, significantly enhancing the instrument’s versatility and flexibility.
In terms of calibration, display control instruments adopt a microcomputer – controlled full – automatic digital calibration system, abandoning the traditional potentiometer adjustment method. This advanced calibration system not only improves the accuracy and efficiency of calibration but also reduces errors and instability factors caused by manual adjustment. Their appearance design also fully considers aesthetics and practicality, with a variety of appearance structures and sizes available, enabling perfect integration with different industrial devices and operating environments. Both the entire machine and the movement assembly adopt a snap – in structure. This ingenious design makes maintenance and disassembly extremely convenient, greatly reducing equipment maintenance costs and downtime. In terms of power supply selection, display control instruments are also very flexible. They can choose conventional AC 220V, 50/60HZ power supply, 90 – 265V switching power supply, or DC 24V power supply to meet the power supply requirements of different occasions. In addition, they can be equipped with RS – 232/RS – 485 or RS – 422 communication interfaces, facilitating connection with the host computer to form a more powerful control system and achieving a higher level of automated control and management.
