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Temperature temperature sensor fault analysis and treatment method of
surge disaster
surge is common black hand damage the temperature of the temperature sensor. The surge are defined as follows. Surge, also known as the surge, just as its name implies is beyond normal working voltage instantaneous overvoltage. Essentially, the surge in just a few hundred a sharp pulse of one over ten thousand of a second time. May be the cause of surge are: heavy equipment, short circuit, the power switch or large engines. And products containing surge block device can effectively absorb the sudden and huge energy, in order to protect connected equipment from being damaged.
the above definition, I wouldn't have to dwell on the surge of the damage, estimated that you should think of damaged temperature temperature sensor is normal! If your system or equipment in the presence of the above situation, not only to choose the temperature of the isolation type temperature sensor, and to do all kinds of earthing and protection measures such as insulation, shielding, protection circuit. Because in addition to temperature, temperature sensors and other equipment in the system may also cannot survive under surge disaster.
working principle of the temperature sensor temperature
current temperature sensor is the temperature of the temperature sensor signal into current signal, connected to the secondary instrument, which showed the corresponding temperature. Temperature thermocouple, heat resistance temperature sensor used as the temperature measuring element, from the output signal of temperature measuring element to the temperature sensor module, after filtering, arithmetic amplifier, nonlinear correction, V/I conversion, constant current and reverse protection circuit processing, convert and a linear relationship with temperature of 4 ~ 20 ma current signal output.
the temperature of the temperature sensor installation requirements
1, before installation, check whether the parts is complete, the fasteners for loose, tighten the antenna.
2, when installation, pay attention to the light to take light put, do not knock, it broke. Tighten the antenna can work normally after
3, after installation, after power up, prohibit the operation personnel to open the front cover, such as wrong operation, operators do not save, reopened when the power is cut off.
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parse temperature temperature sensor has advantages in
temperature temperature sensor is a kind of common equipment to adjust temperature signal output signal or output device can communication protocol. Temperature temperature sensor is used to standardize transmission output variable temperature sensor, its application range is very wide, but in the application of petroleum, chemical and other industries is more.
temperature temperature sensor is a kind of transmission device. The transmitter output signal standardization first used in industrial process measurement and control of the temperature parameters. Temperature sensors usually consists of two parts: the temperature sensor and signal converters. First of all is the thermocouple or heat resistance temperature sensor signal conversion, first by the measuring unit, signal processing and conversion units, some temperature sensors increase the display unit, some still have the function of the field bus.
the temperature sensor is composed of two temperature sensors measuring temperature difference. Output signal and the temperature difference with the given continuous function relations, therefore was called temperature temperature sensors.
the transmitter output signal and the temperature variables, there is a continuous function between the transmitter output signal at the beginning of the production is temperature resistance of the linear function of the temperature sensor.
there are electrical unit combination, miniaturization, multi-function intelligent module type, etc. The former is not equipped with a temperature sensor, which can be easily combined with the thermocouple or heat resistance, forming a transmitter with a temperature sensor.
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