What is a paperless recording instrument?

Paperless recording instrument

Paperless recorder, as the name implies, is a new type of instrument to replace paper recorder. Paperless recorder is a new type of intelligent paperless recording instrument with advanced CPU as the core, supplemented by large-scale integrated circuit, large-capacity FASH storage, intelligent signal conditioning, SmartBus bus and high-resolution graphic LCD, which adopts long-life ED backlight 10.2-inch color LCD screen. Support 4, 8, 16, 32, 64, 128 and other multi-channel analog general input or multi-channel analog output and multi-channel alarm output, set data and record data with power-off protection function, with small size, many channels, low power consumption, high precision, strong versatility, stable operation and high reliability.

Paperless recorder

Color paperless recording instrument

Color paperless recording instrument is a new type of intelligent paperless recording instrument with 32-bit embedded CPU as the core, supplemented by large-scale integrated circuit, large-capacity FASH storage, intelligent signal conditioning, SmartBus bus and high-resolution graphic LCD. The instrument adopts color LCD screen; Support 64-channel analog general input or multi-channel analog output and multi-channel alarm output; Setting data and recording data have power-off protection function; Adopt USB Host technology, provide USB bus interface, realize FAT16 file system, and support data reading and writing of USB mobile storage; It has the characteristics of small volume, many channels, low power consumption, high precision, strong versatility, stable operation and high reliability.

TP700 multichannel data recorder

Evolution process of small long chart paperless recorder

The recorder has a history of several decades. As an important data recording instrument, it has been widely used in various industrial sites, especially in the field of process control. It is a very common secondary instrument in automatic instruments, and it is an extremely effective tool for recording and saving data.

Throughout the development of the recorder, it has roughly gone through three stages: the traditional mechanical analog instrument, the first generation paperless recorder and the networked multifunctional paperless recorder based on virtual technology.

Internet of things recorder TP710

Before 1995, the mechanical pen-and-paper recorder was basically used, which drew curves on the recording paper through the recording pen, thus achieving the purpose of recording and saving data. Because of the complexity of its pen servo system and many mechanical moving parts, its reliability is poor. At the same time, the mechanical recorder has some inherent defects, such as single display mode (curve recording), difficulty in subsequent data processing and high long-term operation cost (recording paper and ink need to be replaced regularly).

Paperless recorder

In 1992, the International Instrumentation Exhibition was held in Beijing, and British PG and German BH companies respectively showed the paperless recorders with new ideas. Domestic discipline companies were keenly aware of this important market opportunity, so they made imitation development. Shenzhen Tuopurui Electronics Co., Ltd. took the lead in introducing TP series paperless recorder to the market. Paperless recorder uses microprocessor, LCD screen and semiconductor memory, which completely overcomes the shortcomings of mechanical recorder. It has become an indisputable fact that paperless recorder replaces mechanical recorder.

Paperless recorder

Tuopurui paperless recorder

In the development process of the following nearly ten years, domestic products occupied an overwhelming advantage in the paperless recorder market, and domestic and foreign products were at the same technical level. Although the products of foreign companies such as Pangu, Kaya Hioki and Yokogawa are more exquisite than domestic products, and the accuracy of 1.5 ‰ is better than that of domestic products of 2.0 ‰, the price of more than 4 times makes users flinch. Up to now, there are more than 30 domestic recorder manufacturers, among which Shenzhen Tuopurui, Zhejiang University Zhongkong and Hangzhou Pangu Xiamen Kehao are the largest. The annual sales of these four companies account for about 90% of the total sales of similar products in China.

After nearly ten years of development, the technical level of the recorder has been improved qualitatively, and the result of the improvement is the third stage mentioned above-a networked multifunctional paperless recorder based on virtual technology, which has the following technical characteristics:

Display device: color large screen LCD screen replaces monochrome small screen LCD screen;

Display technology: a variety of measurement display methods-curve, bar chart, number, flow chart;

I/O channel: universal input module replaces custom input module, and dot isolation technology is widely used;

Measurement technology: VF measurement replaces AD measurement (based on low cost considerations);

Network technology: networking mode replaces single-machine operation mode;

Storage medium: large-capacity FASH electronic disk replaces magnetic disk;

Virtual technology: virtual instrument technology is widely used in paperless recorder-virtual channel;

Multifunctional: reasonable integration of data measurement, flow integration and control functions;

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