Multi functional patrol substationDAS－I
DAS－IThe 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 reference for the current situationDASRemote intelligence in the systemI/OIt also has local display function and can be independently configured as a protective control device during the operation of industrial equipment such as generator sets. Due to the use of gradient analysis on the changes in the measured parameters in the software, it effectively prevents the erroneous transmission of protection or control signals due to sensor and line transmission failures.
DASThe Type 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 the changes in the measured parameters in the software, it effectively prevents the erroneous transmission of protection or control signals due to sensor and line transmission failures. In line with China's national conditions, it can completely replace similar imported products. The exchange of data with the upper computer conforms to the Modbus data communication format and can directly communicate with various PIC or other monitoring systems. It can also be equipped with corresponding modules and directly communicate with industrial Ethernet. It can be widely applied in various industries such as power, metallurgy, chemical engineering, and others.
Main features: It can freely measure thermocouples K, T, E, B, S, thermal resistors G, Cu50, Pt100 (BA1, BA2), and standard signals 0-10mA, 4-20mA, 1-5V, etc. Equipped with 16 pairs of 32 freely configurable switch output signals.
The maximum number of inspection points is 128. The analog signal conditioning part adopts independent channels for each channel, which is less likely to cause channel damage, improving anti-interference performance and having a faster sampling speed. Two independent alarm limits can be set for each point, and the alarm relay has a locking function when powered on to prevent accidental signal transmission during power on or power off; When there is a line fault, the alarm limit 2 relay can automatically lock; It has gradient operation function, and when the gradient alarm is triggered, it can automatically lock the alarm limit 2 relay. The output adopts solid-state relay, which has strong anti-interference ability. Data refresh cycle ≤ 3s. It has parameter power-off hold function. It has RS232 and RS422 (RS485) standard serial communication interfaces, which can easily communicate with the upper computer. The communication protocol can be modified according to user requirements, and a network interface module can also be optionally selected. Equipped with a dot matrix LCD display screen, it has the function of displaying Chinese characters. Equipped with non-linear error correction function and automatic cold end compensation for thermocouples.
Technical specifications: Can patrol input signals: thermocouples K, T, E, B, S, thermal resistors G, Cu50, Pt100 (BA1, BA2), and standard signals 0-10mA, 4-20mA, 1-5V, etc. The detection element can be connected in either a two-wire or three wire system. The number of inspection points can be configured arbitrarily according to requirements. Effective measurement range (optional within the range of -50 to 1500 ℃)
K 0～1000℃ T 0～ 400℃E 0～ 800℃ G -99.9～150.0℃ Cu50 -99.9～150.0℃ Pt100 -99.9～150.0℃ Cu100 0～150.0℃ BA1 -99.9～150.0℃
BA2-99.9-150.0 ℃ 0-10mA 4-20mA range is set by the user, and if the user has special requirements for the range
The requirement for 1-5V can be specified at the time of ordering. 3.5 Resolution: Within the range of -99.9 to 200.0 ℃, the last digit of one word is 0.1; The range is within -99.9-400.0 ℃, with the last digit being 5 words, which is 0.5; Range>400.0 ℃ is the last digit of 1 word, which is 1
3.6. Indication error: ± 0.5% F · S, where F · S represents the output range of the instrument. Alarm control accuracy: same indication error. Data refresh cycle ≤ 3s Working conditions: Environmental temperature: 0-45 ℃ Air relative humidity ≤ 85%; There should be no corrosive gases in the surrounding air. Power consumption: ≤ 20W External dimensions: 362 × 133 × 250mm Installation: Embedded, hole size 361 ± 1 × 134 ± 0.5mm (see attached figure)
Multi functional patrol substationDAS-I-48production The intelligent temperature inspection instrument is a high-precision and highly integrated patrol detection device that can achieve upper and lower limit alarms for physical quantities such as temperature and humidity, or perform hysteresis control with low precision requirements. The instrument adopts dual row digital tubes to display temperature measurement values and the current channel simultaneously. The current channel also has indicator lights for display, which can be manually or automatically checked and can be connected to the computerRS485Serial communication or timed printing.
Choose based on the functions and price of the intelligent temperature inspection instrument: Different functions have different prices, mainly according to one's own requirements. Not every instrument can be suitable for every user. The more functions, the higher the price. When choosing an intelligent temperature inspection instrument, it is necessary to choose one that is easy to operate, which brings convenience to the detection process. Causing data confusion, program instability, or crashes;
Tianchang Lanyu Instrument Complete Set Co., LtdlanyugroupBy adopting surface packaging modular technology, the anti-interference ability of the instrument has been improved, with functions such as display, control, transmission, communication, and universal signal input. It also has a multifunctional patrol substationDAS-I-48production Suitable for displaying and controlling various physical quantity detection signals such as temperature, humidity, pressure, liquid level, instantaneous flow rate, speed, etc., and can perform high-precision linear correction on various nonlinear input signals. The intelligent temperature inspection instrument can be widely used in fields such as power, metallurgy, chemical industry, petrochemicals, paper printing and dyeing, brewing, tobacco, aerospace bases, etc. The intelligent temperature inspection instrument adopts new jumper free technology, which enables the input port to have universal signal input function. By changing the internal parameters, multiple input signals (various thermocouples, thermal resistors, remote pressure transmission, etc.) can be achievedmVStandard voltage/Easy switching between standard current signals. The circuit board has been optimized in design and continuously improved in production process, reducing temperature drift and enhancing anti-interference performance to ensure the stability and reliability of the product during long-term operation. The intelligent temperature inspection instrument adopts high brightnessLEDDigital display and high-resolution light column display (proportional display) enable measurement/The display of control values is clearer and more intuitive. Sampling period:
Related models: DAS-IA DAS-IB DAS-IA/B DAS-IV DAS-III
