According to different measurement principles, radar level gauges can be divided into two types. It is a radar level gauge that controls the liquid level, and its accuracy is generally about 10mm; the other is a radar level gauge, which is used for precise measurement and settlement, with an accuracy of 1mm. Structurally, it is divided into rod antenna, horn antenna and cable antenna, debugging, installing and using the analog signal output by the radar level gauge. The digital signal is superimposed on it by 4~20mADC to realize the compatibility of analog signal and digital signal, conforming to HART protocol. It can provide users with more attractive solutions, especially suitable for large fluctuations, condensation, suspension, viscous slurries, dirty media, and corrosive liquid level measurement. It has a continuous frequency self-calibration function to ensure stable measurement accuracy; it uses HART protocol for digital communication, and uses communication equipment or portable handheld devices to process liquid level variables; the output signal is an analog signal and a HART digital signal superimposed. Using the 4-20mAhar manual operator, the output signal can be divided into liquid level, calculated volume or standard volume; all configuration information and programs are stored in non-erasable memory. When the power is interrupted, all data can be restored; the frequency is continuously self-calibrated to ensure the accuracy of the level gauge.

 

●Small antenna size, easy to install

● Shorter wavelength, better reflection on inclined solid surface

●Smaller measurement blind area, good results for small tank measurement

● Small beam angle, concentrated energy, enhanced echo capability, and conducive to avoiding interference

●Almost unaffected by water vapor, temperature and pressure changes in the atmosphere

● The instrument can also accurately read the real level echo in severe dust environment

● High signal-to-noise ratio, even in fluctuating conditions, better performance

 

 

Measuring range	0~30 m
Process connection	thread, flange
Medium temperature	-40 °C ~ 150 °C
Process pressure	0.1 ~ 4.0MPa
Accuracy	± 3mm
Protection grade	IP67
Frequency range	6GHz, 26GHz
Explosion-proof grade	Exia ⅡC T6 GaExib CT6 Gb
Signal output	4-20mA/HART (two / four), RS485/ Mod bus
Type	guided wave radar, intelligent radar, 26 GH high frequency radar
advantage	Resistance to slight condensation, suitable for corrosive environments with small flanges (minimum DN50) within 10m, small acid gas or steam in the tank
disadvantage	radar is not suitable when the temperature in the tank is high, sour gas or steam is large. The dead zone of HKD901 radar is generally less than 0.3m. It can only measure the environment of normal pressure, and can not add high temperature heat sink.