HR7311 is a small-scale, low-power radar water (liquid) level meter that can be used for non-contact liquid level measurement of surface (or pipeline) water; HR7311 adopts pulse coherent radar (PCR) technology, using 60G millimeter radar waves as carrier signals, and achieves millimeter level measurement accuracy through complex signal recognition algorithms.
The optimized wave cancellation filter design makes the measurement results more accurate and stable. Compared to traditional pulse radar level gauges, they have higher measurement accuracy, lower power consumption, and ultra-small volume; It is a cost-effective radar level gauge and during measurement cannot be affected by temperature gradients, air pressure, water vapor, water pollutants, and sediment .
A 60GHz range detector based on the working principle of microwave radar.
Continuous pulse detection, stable operation of 24/7, measurement error less than ± 5mm.
High-end signal processing technology can adapt well to water surface fluctuations and further avoid errors
Non-contact detection, good directivity, low transmission loss, and wide application range.
Patch antenna (40 °× 80 °), with a lens the size can be (11 °× 11 °).
Approximately 10 measurements per second, effectively eliminating the effects of surface waves and instrument vibrations
Main Performance Specification | |
Transmission Frequency | 60.5GHz |
Transmission Power （EIRP） | 10dBm |
Antenna Type * | Anttane-on-chip(with lens)， 11°× 11° |
Working Voltage | +7~28V DC |
Working Current | 12V working voltage supply Working Current under Working Mode ≤ 15mA Working Current under Low-Consumption (Sleep) Mode≤ 0.3mA |
Communication Interface * | RS-485 |
Data Format | 9600（Default）,8,n,1；Adjustable baud rate |
Response Time | 100 ~ 5000ms，default 5000ms |
Measurement Interval | 1 ~ 480min，default 1min |
Measurement Accuracy | ≤±5mm |
Measurement Range | 0.05~7m |
Resolution | 1mm |
Size | 92×92×40（mm） |
Protective Grade | IP68 |
Housing Material | Front cover: POM, rear cover:aluminum alloy |
Dimensional structure(Unit:mm)
Application Fields
The product is mainly used for on-site water level data collection. The collected data can be transmitted to the upper computer or server through a communication interface and wireless device. Therefore, this product is often used as a measuring terminal for remote monitoring systems.
The product has low-consumption and is very energy-efficient. It can be powered by solar energy when continuously detecting in the field.
Application:
1) For water level monitoring of rivers, lakes and other natural waters, a monitoring network will be established through monitoring points to achieve linkage early warning in flood season.
2) Water level monitoring in reservoirs, sewage channels, and other storage areas for internal operation regulation.
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