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The basic principles of the recorder Recorder <br> <br> is to convert one or more variables change over time or another variable to be identified and the reading process instrumentation signals. It can save the recorded signal changes for analysis. The logger's biggest feature is the ability to automatically record slow or non-periodic multi-signal slow-moving processes and transient level changes.
According to the types of input and output signals, recorders can be divided into analog-digital, digital-analog, analog-analog, digital-digital, etc. Their main circuit differs according to the output format. When the output is a digital signal, its main circuit is a memory circuit that can store digital information. It can send digital signals to a tape drive, puncher or other device at any time, or use an oscilloscope to observe analog waveforms such as digital memory and Waveform memory. When the output is an analog signal, the main circuit of the recorder is an analog amplifier drive circuit with no storage function. The signal must be immediately recorded to paper, photographic film or tape with proper recording device and method to save the information for further analysis and processing. Such as various pen recorders, light recorders, plotters, tape recorders and so on. There are mainly two types of analog circuits, namely, direct amplification drive type, such as pen recorders and automatic balance type, such as the plotter or XY recorder recorder's main technical indicators for the operating frequency, input signal dynamic range, recording linearity, resolution Degree, distortion, response time, paper accuracy and stability. Tape drives that are used as computer peripherals also require complicated circuits and mechanisms.
The recorder is based on advanced CPU as the core, supplemented by a new intelligent paperless recording instrument with large-scale integrated circuits, large-capacity FLASH memory, signal intelligent conditioning, SmartBus bus, and high-resolution graphic LCD display, using long-life LED backlight 160×128 monochrome liquid crystal display, support 4/8/16 channel analog universal input or 2/4/8 channel analog output and 12 channel alarm output, set data and record data with power-off protection function, with small size , Many channels, low power consumption, high precision, versatility, stable operation, high reliability.