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Hach Submerged Area Velocity Sensor
Our Submerged AV Sensor is a robust, 1 MHz Acoustic Doppler velocity sensor designed to measure wastewater flow with improved accuracy and reliability. This tried-and-true sensor also uses a pressure transducer to measure flow level and incorporates advanced technologies to ensure precision, including automatically correcting for temperature and velocity effects on measurements. With advanced signal processing and filtering options, the AV9000 Analyzer Module expands the applicability of the sensor into more difficult applications. Plus, advanced analyzer diagnostics, including capture and display of the Doppler spectra, allow you to verify that the sensor is working properly even before you leave the site, giving you peace of mind.
| Accuracy 2 | VELOCITY MEASUREMENT: ±2% of reading or 0.05 fps** **Uniform velocity profile, known salinity, positive flow. Field performance is site specific. |
| Accuracy 3 | LEVEL MEASUREMENT: ±0.16% full scale ±1.5% of reading at constant temp (±2.5ºC) ±0.20% full scale ±1.75% of reading from 0 to 30ºC (32 to 86ºF); ±0.25% full scale ±2.1% of reading from 0 to 70ºC (32 to 158ºF) |
| Accuracy 4 | Velocity-Induced Depth Error Compensated based on flow velocity |
| Allowable Level | Standard: 10.5 m (34.5 ft) Extended: 31.5 m (103.5 ft) |
| Cable | Urethane sensor cable with air vent |
| Cable Length | 30 ft |
| Compatible Instruments | 920, 930, 930T, 950, 900 Max Samplers, and AV9000 Interface Analyzer Module |
| Dimensions (H x W x D) | 23 mm x 38 mm x 135 mm |
| Level Accuracy | ±0.16% full scale ±1.5% of reading at constant temp (±2.5ºC) ±0.20% full scale ±1.75% of reading from 0 to 30ºC (32 to 86ºF) ±0.25% full scale ±2.1% of reading from 0 to 70ºC (32 to 158ºF) |
| Level Measurement Method | Differential pressure transducer with stainless steel diaphragm and atmospheric pressure reference |
| Level Range | 0 to 10 ft range |
| Material | Noryl® outer shell with epoxy potting within |
| Measurement method | LEVEL: Pressure transducer with stainless steel diaphragm |
| Oil or Non-Oil Filled | Oil filled with connector |
| Operating Temperature Range | 0 – 70 °C |
| Recommended Range | -1.52 to 6.10 m/s (-5 to 20 ft/sec) |
| Special Features | Oil Filled, 30 ft cable |
| Typical Minimum Operating Depth | 2 cm (0.8cm) |
| Velocity Accuracy | ±2% of reading or 0.05 fps** **Uniform velocity profile, known salinity, positive flow. Field performance is site specific. |
| Velocity Measurement Method | Doppler ultrasonic; twin 1 MHz piezoelectric crystals |
| Velocity-Induced Depth Error | Compensated based on flow velocity |
| Warranty | 12 months |
