Digital sensitivity

Overview LGK-JS02-064 handheld thermocouple calibrator (referred to as thermocouple calibrator). The calibrator is specially used for thermocouple temperature measurement. It has built-in 2 high-precision and high-stability thermocouple temperature conversion chips, which can measure the temperature data of two-way thermocouples at the same time. It is mainly used to detect whether the function of the thermocouple is normal before and after use. The product design takes into account its application in industrial field, and the calibrator has been optimized in terms of stability, reliability and anti-interference, and can be applied to various complex working conditions. The appearance design of the calibrator strengthens the design of resistance to falling and oil stains. The overall calibrator is easy to use, intuitive to display, small and portable, stable and durable, and easy to operate. Working principle The LGK-JS02-064 handheld thermocouple calibrator adopts a special industrial chip for thermocouple temperature acquisition, reads the temperature data of the thermocouple sensor at a single point, and then processes the data through an industrial-grade low-power single-chip microcomputer, and then passes the digital tube displayed on the screen. Composition As shown in the figure, the device uses a self-locking metal button switch for switching on and off. The calibrator comes with a lighting design, which is mainly used for thermocouple maintenance with the poor light in the operating environment. The design fully considers the actual needs of field applications, and the design is very humanized and rational. The temperature data is displayed through a bright red digital tube, which is intuitive and convenient to check. When using the thermocouple calibrator, we need to connect the thermocouples in the unpowered state. The T1 interface is a group, and the T2 interface is a group. Make sure the connection is good. Press the switch, and the thermocouple calibrator will directly display the temperature of the thermocouple in real time. Parameters Acceptable test temperature range: 0-1000°C Sensitivity: 0.25°C Operating temperature: 0°C-50°C Temperature refresh rate: 0.5 s/time Common working section: 25°C-800°C Power supply: 2 AA dry batteries

Overview Mold is the casting billet forming equipment in continuous steel casting, and it is also the core equipment and key technology of continuous casting machine. Its function is to forcibly cool the high-temperature molten steel continuously injected into its inner cavity through the water-cooled copper plate to export its heat and to gradually solidify it into a casting billet with the required cross-sectional shape and billet shell thickness. And the casting billet, which is still in liquid state, is continuously pulled out from the lower nozzle of the mold to create conditions for casting billet to be completely solidified in the subsequent secondary cooling area. The main function of the mould oscillation device is to make the mould perform mechanical movement according to the given characteristics of amplitude, frequency and waveform deflection. The purpose is to facilitate demoulding and prevent the occurrence of sticking and breakout accidents due to the bonding of the casting billet with the copper wall of the mold during the solidification process. MOC-K100 mould oscillation online monitoring system can three-dimensionally detect the positive and negative frequencies and waveform characteristics of the mould oscillation. The online changing data is provided in real time, which provides convenient and effective detection methods for on-site inspection personnel. The meaning of the system 1. When the continuous casting machine is not working properly, the billet quality problems (such as unstable oscillation marks, edge cracks, etc.) occur. According to the monitoring results of the system, we can combine with the actual on- site situation to analyze the cause of the failure, and efficiently evaluate and solve the problem of the oscillation table to improve product quality. 2. During the normal operation of the equipment, with the fatigue and wear of the mechanical structure of the mold, the expected oscillation parameters of the mold and the actual oscillation parameters will have a oscillation difference with time change, resulting in the internal process parameters’ changing of the continuous casting machine. Timely and accurate monitoring of changes in these parameters is helpful to schedule maintenance. 3. Transfer equipment maintenance from regular maintenance to state maintenance, do not repair when there is no problem, and arrange maintenance according to production needs when abnormal signs appear. Prevent over-repair and under-repair. 4. According to the monitoring results of the equipment, the on-site working parameters are adjusted in time to avoid adopting inaccurate or large-error oscillation to work and prevent the "breakout" accident. 5. We can timely find out that the oscillation is not stable or out of control in a small range, so as to avoid the formation of unevenness and unstable oscillation marks on the surface of the slab during the solidification of molten steel into the slab, and improve the surface quality of the product. 6. Adjust the working parameters reasonably according to the monitoring results, avoiding the use of excessive safety factor, making the entire assembly line play a normal working efficiency, increasing the output of billets, and create favorable conditions for increasing the casting speed. The functions of the system (1) Overview of monitoring parameters: Provides an overview of real-time monitoring parameters in the full screen, displaying all real-time data including oscillation parameters and process parameters. (2) Time domain waveform: This function mainly displays the oscillation waveforms of multiple measuring points and one channel standard waveform in real time, and simultaneously displays the three elements of oscillation of each measuring point in real time. (3) Waveform superposition: The difference between this function and the time domain waveform is that the waveforms of multiple measuring points are superimposed on a graph with lines of different colors on the same scale, and the oscillation difference of each channel can be calculated and displayed intuitively. (4) FFT: This functional module completes the calculation and display of the oscillation spectrum in real time. It is used to evaluate the waveform distortion of the entire oscillation table and to determine whether there is a problem with the installation of the oscillation device. (5) Bar graph: The oscillation of each measuring point is indicated by a bar graph of peak value and sensor gap voltage, which is more intuitive. (6) Trend: After starting this module, the operator can search the historical records in the database, analyze the changing trend of each parameter, and use it to analyze the rationality of the steel quality and processing parameter settings for different steels under the oscillation conditions. The parameters of the system 1. Number of measurement channels: According to the mold design, up to 16 sensors can be arranged 2. Sensor: three-dimensional oscillation sensing (X, Y, Z three axes) 3. Sensitivity: 1000mV/g 4. Frequency range: 0.04~10HZ 5. Frequency accuracy: ±0.01 Hz 6. Amplitude accuracy: 0.005mm 7. Transmission mode: wired digital transmission, wireless transmission 8. Host: 3U standard rack, handheld device 9. Sensor power supply: 24V.DC 10. Host power supply: 220V.AC/50Hz Mold oscillation curve The structure of the system The main components of the continuous casting mould online oscillation detection system are: 1. Three-dimensional oscillation measurement sensor 2. Handheld oscillation sensor calibrator 3. Dedicated signal connection cable 4. Preamplifier 5. Operation processing unit 6. Graphic display terminal 7. Industrial Ethernet (TCP/IP) or PROFIBUS-DP communication components 8. Control cabinet

Overview The system aims at the continuous temperature detection of the product obtained from the continuous casting machine. The billets and their surrounding environmental factors such as scale, steam, shielding and other factors, are considered in the scheme design and equipment selection. The accurate detection and real-time transmission of temperature during the billets movement are also considered. The equipment selection Temperature detection The billet temperature detection adopts the two-color integrated high-temperature thermometer produced by Wuhan CenterRise M&C Engineering CO.,；Temperature measurement range: 600°C - 1400°C; All components are installed in a sturdy housing for continuous measurement. The optimized treatment is taken for the problems that the semi-finished billets are hindered by steam or other particles (scale) in the environment, and the billets movement and the installation limited field of view. It provides fast, real-time monitoring of high temperature billets. Equipment cooling Using vortex air cooling device, no power supply is needed, only dry air is required, and the low temperature cooling gas below 0°C is output to cool the three sets of temperature detection equipment. Signal transmission The bidirectional RS-485 communication of the measurement and control system is used among multiple (multi-stream) measuring equipment or among the measuring equipment and the secondary meter. The Industrial Ethernet or DP network communication is used between the secondary instrument and the PLC. The signal transmission equipment adopts the communication equipment supporting multi-protocol network. Purge device (optional) When the environmental occlusion is severe, and the main occlusion is gaseous substances such as steam, it is recommended to use a purging device. The purging device uses dry air, and the solenoid valve controls the start and stop. Software Adopting DataTemp software to remotely set and monitor the measuring equipment. Adopting ScanTemp software to analyze and process the temperature data and eliminate invalid signals. Through the software model, the interference factors such as steam and iron scale can be overcome and the actual temperature of the casting billets can be displayed in real time. The features Using Si/Si stack detector, high sensitivity It is easy to use and has sturdy housing, which meets NEMA-4 standard Bidirectional RS-485/DP communication (can be networked), supports up to 32 detection sensors at most With user-defined alarm methods, analog and digital outputs are synchronized Use protective devices and air cooling devices, can withstand high temperature environment Accurate measurement of moving targets or targets obscured by dust, smoke and other particles in the atmosphere Adopt passive cooling apparatus, high cooling efficiency and low maintenance Use software to remotely set and monitor, analyze and secondary process the data, and optimize occlusion measurement The parameters Measurement range：600℃～1400℃ Response time：10ms Spectral response：bicolor Accuracy：±0.75% Repeatability：±0.3% Cooling air pressure：0.5Kpa Cooling air flow：24L/min Max.temperature：165℃ Output signal：485 / DP / 4-20mA Environment standard：NEMA4 (IEC529, IP65)