HOH-S-R type radar water level gauge for manholes

1Equipment Composition

IIEquipment principle

The radar water level gauge converts water depth by detecting the distance between the water surface and the radar sensor: the radar water level gauge antenna emits frequency modulated continuous radar waves, which are reflected back and received by the same antenna when encountering the surface of the measured medium. Due to the frequency delay effect generated during the detection process, that is, the frequency difference between the transmitted signal and the target echo signal at the same time caused by time delay, the distance from the antenna to the surface of the measured medium can be calculated.

IIIApplication scope

Specialized for manholesRadar water level gaugeuseFMCW frequency modulation continuous wave mode, microstrip array antenna with independent replaceable lens antenna focusing,The angle of the transmitting beam can be reduced to3°×3°，Can replace products such as lasers and industrial ultrasonic ranging radars. The product is compact in size and structure, suitable for various ranging application scenarios,Especially suitable forManholes, etcNarrow spaceswater level monitoring，It can also be applied to water level monitoring in lakes, rivers, reservoirs, open channels, tides, and other areas.

The equipment is not affected by climate, temperature, water vapor, and water pollutants,Can accurately measure the distance of stationary or moving targets; also built-inFiltering andData processing algorithms can ensurehigh-precisionofmeasurement result.

4equipment installation

5characteristic

Small launch angle, especially suitable for depth measurement in narrow spaces such as deep wells;

FMCW frequency modulation continuous wave mode;

Built in data processing algorithm, measurement error less than ±3mm，High precision models can reach±1mm；

Combining measurement operation and sleep mode, with low power consumption;

• Non contact measurement, safe and low loss, minimal maintenance, and not affected by sediment and other factors;

Working 24/7, unaffected by temperature, with strong anti-interference ability;

IP68 waterproof design, suitable forWet underground environment andVarious outdoor environments;

• Simple structure, compact appearance, easy installation, economical and durable.

Measurement range 0.1～60m

Measurement accuracy ±2mm

Resolution 1mm

Working frequency 80～120 GHz

Working voltage +9～24V DC

Measurement interval 0～30000s

Data format 9600， n，8，1

Communication interface RS485

Communication Protocol MODBUS

Antenna style Planar microstrip array antenna: 3°×3°

Working current Normal working mode: ≤40mA@12V

Low power (sleep) mode: ≤ 1mA@12V

Working temperature -40 ～85℃

Protection level IP68

Product size Φ66 x 96 (mm)

Shell material engineering plastic