ADVRDV composite passenger well flowmeter
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- ADVRDV composite passenger well flowmeter
◆Measurement principleThe product utilizes a composite dual-mode sensor combining radar Doppler and ultrasonic Doppler to detect water flow velocity, while simultaneously monitoring water level variations through the integration of radar, hydrostatic pressure, and conductivity sensors, thereby calculating real-time flow rates in manholes. Designed with low maintenance requirements as a primary objective, this product fully leverages the advantages of non-contact flow measurement via radar in manhole flow monitoring scenarios, reducing the likelihood of sensor fouling. Ultrasonic contact measurement supplements velocity detection during high water levels. The coordinated operation of multiple sensors enables complementary strengths, making the system more adapt
able to diverse working condition requirements.This type of sensor is more suitable for use in situations with relatively fast flow rates.◆Main Features▶Dual-mode (ultrasonic and radar wave) flow velocity sensing, seamless (no blindzone) docking;▶Note the flow velocity boundary conditions: 0.05m/s~0.2m/s (non-contact radar flow velocity sensing);▶Unidirectional model (when using ultrasonic speed measurement, flow direction is not recognized, outputting absolute values);▶Bidirectional flow model (identifies positive regurgitation, flow velocity and flow rate carry positive/negative signs);▶Multi-mode water level (radar, static pressure, and conductivity) sensing (built-inflow velocity-dynamic pressure compensation);▶Output parameters: comprehensive flow velocity, comprehensive flow rate, comprehensive water level;▶Other parameters: single-mode flow velocity, flow rate, water level, status of each sensor;▶Top-mounted installation on horizontal pipes, enabling wellhead operations via brackets;▶Main unit features an alloy-plastic housing with excellent corrosion resistance, waterproofing, and impactresistance; potted sealing ensures no impact from temperature variations on sealing;▶Supports RS485 upgrade, enabling remote OTA when paired with the main unit;▶Top-mounted installation on horizontal pipelines effectively prevents sensor material buildup;▶Mounting brackets facilitate easy sensor fixation.◆Application scenariosSpecialized sensor for manhole flow measurement, suitable for remote monitoring of manhole flow velocity, water level, and flow rate -
Technical parameters:
Flow velocity radarWater temperature rangepower consumption
Flow rate range
0.05~20.000m/s，Recommended operating conditions for speed measurement：>0.2m/s（Boundary flow velocity 0.05~0.2m/s）
Flow velocity accuracy
Ultrasonic: 1% ± 0.005m/s, Radar: 2% ± 0.01m/s
Flow rate resolution
0.001m/s
Dead zone velocity
Ultrasonic Unidirectional Type: 0~0.002m/s, Ultrasonic Bidirectional Type: -0.03~0.03m/s, Radar: -0.05~0.05m/s
Flow Velocity Rader
24G (operating frequency), CW， Antenna angle: 24 °× 12 °, radiated power EIRP: 20dBm, antenna gain: 18.5dB ultrasonic sensor
3 beams, 2MHz, 5 ° angle
Water level range
0~10m(Radar+Static Pressure+Conductivity Composite Sensing)
Water level accuracy
0.2%FS±0.001m
Water level resolution
0.001m
Water level radar
120-125G, range: 0.15-40 meters (affected by RCS), FMCW, Antenna angle: 14 °× 10 °
Water Temperature Range
0-60℃ Water temperature accuracy
0.5℃
Water temperature resolution
0.1℃
power supply
8-15VDC，Typical values：12VDC
output
RS485.MODBUS.RTU
Output damping
can be set
Power Consumption
12VDC/150mA response time
10s
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ADVRDV composite passenger well flowmeter Instrument Model ADVRDV Composite Manhole Flowmeter Flow Velocity and Water Level 0 Flow Velocity: 0.05m/s~20m/s Water Level: 0~10m Process Connection Accessories 0 Standard L-shaped 304 stainless steel bracket Power Supply/Communication E 12VDC（RS485） Cable Length A 10 meters (standard configuration) B 20 meters C custom length (*Note 3) Breather Valve Assembly 0 Without manhole breather valve assembly (*Note 1) 1 With manhole breather valve assembly + cable lead-out (*Note 2) 2 With manhole breather valve assembly + aviation connector (*Note 4) Model Selection Examples ADVRDV - 0 - 0 - E - A - 0 *Note1 Except when the customer does not require the manhole breather valve, this option shall also be selected when the ADVRDV is used in conjunction with the AOWXM stainless steel barrel; *Note2 When using this product in a manhole, it is recommended to select the manhole breather valve assembly; however, the cable cannot be threaded through a pipe in this case, so please note this when selecting. *Note3 The length of the cable led out from the breather valve is 0.5 meters, and self-extending of the cable is not supported; *Note4 When the ADV is equipped with a portable handheld terminal, it must be equipped with the manhole breather valve assembly + aviation connector.
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Address：
No.36, Longhui Road, Wujin National Hi-Tech Industrial Development Zone, Jiangsu Province, China
Address：
Building 5 and 11, Fuzhou IoT Industrial Park,
No. 12 Xingye West Road, Mawei District, Fuzhou City
Tel：
+86-13055728858
Email:
aotai03@fjautec.com Mr. Zhou
aotai01@fjautec.com Mr. Liao
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