Practical application of Xilan Hengyuan DAS-III multifunctional temperature monitoring instrument

Practical application of Xilan Hengyuan DAS-III multifunctional temperature monitoring instrument

Practical application of Xilan Hengyuan DAS-III multifunctional temperature monitoring instrument

The DAS-III multi-point non electric quantity acquisition and control system is designed by our company based on the development requirements of computer measurement and control technology in China. It can serve as a remote intelligent I/O in current DAS systems, with local display function, and can be independently configured as a protection and control device during the operation of industrial equipment such as generator sets. Due to the use of gradient analysis on changes in the measured parameters in the software

Multi point temperature acquisition device

Key Features:

2.1. Thermocouples K, T, E, B, S, thermal resistors G, Cu50, Pt100 (BA1, BA2), and standard signals 0-10mA, 4-20mA, 0-5V, etc. can be measured arbitrarily.

2.2. The range of standard signals can be set arbitrarily.

2.3. The maximum number of patrol points is 96.

2.4. The contactless sampling switch adopts a series connection method to prevent the performance indicators of the instrument from being reduced due to an increase in the number of points. The use of analog switches with fault protection improves anti-interference and stability. In Qinhuangdao 3 # and 4 # 300000 thermal power units, as well as Jilin Baishan, Qinghai Longyangxia, Gansu Liujiaxia and other 300000+hydropower units, it has been proven that they can still operate normally and stably even when the general instruments cannot work normally due to interference.

2.5. It has one alarm limit and one control limit, and each channel can be set arbitrarily. The more * the measured point is, in addition to outputting the switch signal, the more limit signal is displayed using a light-emitting diode.

2.6. The patrol rate is less than 100ms per point, and the display rate can be adjusted between 2s-10s.

2.7. The detection methods include: patrol detection display, manual point selection detection display, and patrol detection maximum value display.

2.8. Any point can be set to an open state (participating in the inspection) or a locked state (not participating in the inspection).

2.9. It has parameter retention function.

2.10. It has RS232 and RS485 standard serial communication interfaces, which can easily communicate with the upper computer. The communication protocol can be modified according to user requirements.

2.11. It can be equipped with various printers and has printing functions such as timing, calling, and exceeding limits.

2.12. Line resistance correction and thermal resistance cold end compensation are calculated based on resistance values and mV values, and the calculation results are consistent with the on-site conditions. Avoiding calculation errors caused by neglecting nonlinearity and other issues when calculating degrees. This error is very large when nonlinearity is severe.

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