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channel Flow rate transmitter
Doppler liquid level flow rate transmitter

SPDV200 Doppler liquid level flow rate transmitter

SPDV200 Ultrasonic Doppler liquid level flow rate transmitter measurement is based on the Doppler effect. The probe emits a beam of ultrasonic waves obliquely upward. The ultrasonic waves propagate in the fluid. The fluid will contain impurities such as bubbles or particles (it can be considered that the impurities in the fluid are at the same speed as the water flow).

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SPDV200 Ultrasonic Doppler liquid level flow rate transmitter measurement is based on the Doppler effect. The probe emits a beam of ultrasonic waves obliquely upward. The ultrasonic waves propagate in the fluid. The fluid will contain impurities such as bubbles or particles (it can be considered that the impurities in the fluid are at the same speed as the water flow). When ultrasonic waves contact impurities in the fluid, the reflected ultrasonic waves will produce a Doppler frequency shift Δf, and the Doppler frequency shift Δf is proportional to the flow rate. The flow velocity of the fluid can be measured by measuring the Doppler frequency shift Δf

Parameters

Measurement typevelocity, water depth, (water temperature measurement is optional function)
PowerPower supply range: 10.8VDC～26.4VDC;

12V power consumption: 45mA±1mA (about 0.54W)

24V power consumption: 26mA±1mA (about 0.62W)

Output characteristicsRS485/ModBus standard protocol
Measure performanceFlow velocity range: ±0.03m/s～±5m/s (±0.03m/s～±10m/s can be customized);

Water depth range: 0.02~3m, 0.02~10m (please confirm the maximum water depth before ordering);

Flow rate accuracy: ±1% (accuracy submitted for inspection by the Ministry of Water Resources);

Flow velocity accuracy: ±1~3% (measurement accuracy may vary due to the on-site working environment);

Water depth accuracy: ±3cm;

Flow velocity resolution: 1mm/s;

Temperature resolution: 0.1℃;

Water depth resolution: 1mm.

Physical propertiesMaterial: POM;

Mass: 2.6±0.1kg;

Protection level: IP68;

Cable: 4-core shielded cable with air conduit included, factory default length 10 meters, wire diameter 8mm (other wire lengths need to be customized).

Working environmentWorking temperature: 0~60℃ (non-freezing state);

Storage temperature: -20~80℃;

Sand content: <20g/L;

pH: The pH value is between 6 and 8.

ApplicationPipeline, channel, natural stream, river

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