Integrated temperature transmitter principle and installation instructions
Principle of integrated temperature transmitter
The integrated temperature transmitter is a combination of a temperature sensor and a transmitter, and a simple method is used to convert the temperature signal in the range of -200 to 1600 degrees Celsius into a two-wire telecommunication transmission to some equipment such as a display instrument, so as to realize the temperature control. The precise measurement and control of the temperature transmitter manufacturer, Kontron Electronics, will give you a brief introduction to the working principle of the integrated temperature transmitter.
The integrated temperature transmitter uses the working principle of liquid level static pressure measurement. It generally converts the measured pressure into an electrical signal by a silicon pressure pressure sensor, amplifies and compensates the circuit in the landscape, and amplifies and compensates the circuit by the method. Compensation circuit, then output with 4~20mA DC electrical signal.
The integrated temperature transmitter can have an actual vacuum, and the pressure obtained by adjustment in the processing link of the circuit. The gauge pressure measurement transmitter measures relative to the atmospheric pressure, which is equivalent to the reference atmospheric pressure P2 and the reference atmospheric pressure P0. Relative to atmospheric pressure measurement, equivalent to reference atmospheric pressure. This is the case for most pressure measurements in the field, such as main steam pressure measurements, etc. Differential pressure measurement transmitter Differential pressure measurement transmitter is mainly divided into liquid level measurement and flow measurement. Differential pressure measurement transmitters are mainly divided into liquid level measurement and flow measurement.
The extension of theintegrated temperature transmitterunderstands that the liquid level sensor is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, and the principle that the static pressure of the measured liquid is proportional to the height of the liquid, mainly adopts the advanced isolation diffusion abroad. Silicon sensitive element or ceramic capacitive pressure sensitive sensor converts static pressure into electrical signal, bulk silicon sensitive element or ceramic capacitive pressure sensitive sensor converts static pressure into electrical signal, and then converts into standard electrical signal after temperature compensation and linear correction .
The integrated temperature transmitter can convert this tiny capacitance into a standard current output through a balance circuit, so that it is convenient to obtain a current signal that the pressure changes into a linear relationship output. As a result, the current signal output in a linear relationship with the pressure change is obtained. In fact, the working principle of the inductive transformer is similar.
Integrated temperature transmitter installation
The integrated temperature transmitter, like other transmitters, needs a lot of attention in the process of use. If the user accidentally uses a few details, it will directly affect the performance of the instrument and destroy the service life of the instrument. The following Introduce in detail the precautions for users when using the integrated temperature transmitter:
1. The installation environment of the integrated temperature transmitter must be within -20-+70°C. When the ambient temperature is too high, the signal converter and display module can be installed separately from the thermal resistance or thermocouple. To be equipped with a special explosion-proof box for separately mounting the transmitter.
1. When used in explosion-hazardous places, please pay attention to the explosion-proof mark and protection level;
2. Before powering on, please carefully check the positive and negative polarity of the power supply, and do not connect it wrongly, otherwise it may cause unknown consequences.
3. The temperature transmitter needs to be calibrated after six months of use.
4. The signal converter module is potted and cured with epoxy resin to enhance its shockproof performance, and to prevent moisture, corrosion and moisture.
