Introduction to intelligent instrument control system lightning protection measures

Abstract: introduction to intelligent instrument control system lightning protection measures of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. With the rapid development of industry, industrial processes associated with control more closely, the corresponding process information and testing management put forward higher request, the intelligent instrument control technology is applied in industrial production of automation instrument control development, marks. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a discussion on intelligent instrument control system lightning protection measures, the article details. With the rapid development of industry, industrial processes associated with control more closely, the corresponding process information and testing management put forward higher request, the intelligent instrument control technology is applied in industrial production of automation instrument control development, marked the production process control has entered a new stage. Due to the intelligent instrument control system in industrial control, communication module, security devices and field measurement instrument using mostly electronics combination of integrated circuit, the micro electric parts are widespread low dielectric strength and low resistance to surge capacity Achilles' heel, often in thunderstorm season from lightning, light a few instrument computer input/output module part strike bad, or the whole device control system, has been paralyzed forced shutdown overhaul, cause huge losses. Therefore, it is very necessary in the control and production device in lightning protection device. Lightning intrusive way because the computer technology widespread application in industrial management, lightning surge intrusion resulting in failure of computer and communication are more and more. When surge more than computer capacity, data will appear garbled, chips is bad, and even damage the software system, led to the suspension of receiving/transmission data. Thoroughly to ensure the safety of the equipment operation, multiple protective measures should be taken, the lightning protection effect safe and more reliable. Research on intelligent instrument control system lightning protection from external lightning protection system and the two aspects of the internal lightning protection system. Solve the main external lightning protection measures for induction lightning harm to measuring instrument. Surge intrusion ways mainly have signal cable into induction meter circuit surge into the measurement of insulation, the breakdown of micro electric components, instrument faults and direct induction lightning through the table body straight into the instrument circuit, breakdown faults caused by circuit module. Solutions is a device in accordance with the requirements of lightning protection specification for a new review overall and signal communication cable grounding lightning protection measures, reasonable wiring and grounding of metal instrument box. For the protection of key interlocking signal system should be set surge; Internal lightning protection system mainly refers to the power supply prevents thunder protection intelligent instrument control system, control display unit, the operating system, engineer station data processing equipment such as earth, and in and out of the computer signal channel lightning protection associated with local area network (LAN) signal, the power of lightning protection measures such as switches, network CARDS. The practice of prevention of lightning 3. 1 improve the grounding system ( l） Security protect, control cabinets, consoles, engineer station, power supply tank chassis grounding with a flat together. （ 2) Instrument signal, computer input and output signal is instrument measuring reference point, all instrument work such as negative 24 v power supply, and the equipotential are attached here. （ 3) The Ann, safety barrier, gelizha, grounding and safety with reference point is connected to the instrument signal, equipotential system, grounding assembled in a bit, the resistance is not greater than lΩ 。 3. 2 flawed source anti surge control system of intelligent instruments power from the power distribution system master control room into the computer. Power system from power plant through a transformer, power distribution system for the use of the instrument system after zui, power transmission in thunderstorm weather into the ring wei multi-channel long that is extremely vulnerable to lightning, so at this time the power is not the 380 v or 220 v, 50 hz alternating current (ac), but the mixed various clutter surge voltage, if not set the surge protection system, the electrical equipment in the use will accident due to over pressure limit. The total distribution in A, B, C, D four phase three line and connected to the power surge, relative to A, B, C, D on the terminal. During a thunderstorm induction lightning surge surge protector will overload protection by current into the earth, and the output voltage rein in the security zone, to ensure the safe operation of the power supply. Power surge prevention system is shown in figure 1. 3. 3 signal channel surge device signal surge should ensure normal instrument under various testing information accurate, stable, flexible, thunderstorms weather can put over voltage surge leakage in the earth, and the muzzle output voltage in the security area, so as to ensure the safety of the signal transmission. From the using effect, install surge lightning protection has greatly increased the thunderstorm weather safety coefficient of intelligent instrumentation. Signal lightning protection system is shown in figure 2. Application of lightning protection products should pay attention to the following factors: ( l） Regularly check the maintenance of intelligent instrument control system engineering power supply system grounding, bus-bar, rust, fracture and other failure, grounding body repair in a timely manner to make it back to normal, regular testing resistance ( Resistance should be kept in 1 only) 。 If found resistance increase should find out the reason and carry on resistance reduction. （ 2) Reviewed according to the proportion of surge, surge is use for a long time, because the electronic equipment will action caused by aging and voltage drop, the parameters of lightning protection is unqualified. （ 3) Power supply prevents thunder gate generally use in power distribution system.

It has become necessary for Beijing Sincerity Automatic Equipment Co., Ltd to continually cultivate, develop and update their skills to work successfully alongside high-tech.

Knowing these basics of is every essential. But if you don't know how to choose the proper for your specific need, let Beijing Sincerity Automatic Equipment Co., Ltd experts be your guide. Enquire us at Sincerity Flow Meter.

These coriolis density meter mass flow meter are not only useful but also more cost effective than those traditional ones.