CBRD503 guided wave radar level gauge Introduction: Guided wave radar is a measuring instrument based on the principle of time travel. Radar waves travel at the speed of light, and the travel time can be converted into level signals through electronic components. The probe emits high-frequency pulses and conducts them along the cable or pole probe. When the pulse encounters the surface of the material, it is reflected back and received by the receiver inside the instrument, which converts the distance signal into a level signal. input The reflected pulse signal is transmitted along the cable to the electronic circuit of the instrument, and the microprocessor processes this signal to identify the echo generated by the microwave pulse on the surface of the material. The correct identification of echo signals is completed by software, and the distance D from the material surface is proportional to the time travel T of the pulse: D=C × T/2, where C is the speed of light. Since the distance E of the empty tank is known, the level L is: L=E-D output By inputting the empty tank height E (=zero), full tank height F (=full range), and some application parameters to set, the application parameters will automatically adapt the instrument to the measurement environment. Corresponding to 4-20mA output. Technical parameters: Application: Liquid, solid particles Measurement range: 30 meters Process links: threads, flanges Process temperature:- 40 ～ 250℃ Process pressure:- 0.1 ～ 2MPa Accuracy: ±3mm Frequency range: 100MHz to 1.8GHz Explosion proof/protection level: Exd Ⅱ C T4 Gb/IP67 Signal output: 4~20mA/HART (two-wire/four wire)/RS485/Modbus
Introduction: Guided wave radar is a measuring instrument based on the principle of time travel. Radar waves travel at the speed of light, and the travel time can be converted into level signals through electronic components. The probe emits high-frequency pulses and conducts them along the cable or pole probe. When the pulse encounters the surface of the material, it is reflected back and received by the receiver inside the instrument, which converts the distance signal into a level signal. input The reflected pulse signal is transmitted along the cable to the electronic circuit of the instrument, and the microprocessor processes this signal to identify the echo generated by the microwave pulse on the surface of the material. The correct identification of echo signals is completed by software, and the distance D from the material surface is proportional to the time travel T of the pulse: D=C × T/2, where C is the speed of light. Since the distance E of the empty tank is known, the level L is: L=E-D output By inputting the empty tank height E (=zero), full tank height F (=full range), and some application parameters to set, the application parameters will automatically adapt the instrument to the measurement environment. Corresponding to 4-20mA output.
