Tiếng Việt
By pairing Hach’s Sumberged AV Sensor with our state-of-the-art Hach AV9000 Analyzer Module, you create a powerful Hach Submerged Area Velocity Meter (FL900AV) which provides “cleaner”, more precise data than ever before.
Our Submerged AV Sensor (sold separately) 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 | Timebase Accuracy: ± 0.002 % , synhchronized every 24 hours with server software and modem |
| Alarm | 16 maximum channels |
| Allowable Level | Standard: 10.5 m (34.5 ft)
Extended: 31.5 m (103.5 ft) |
| Alternate KTO? | No |
| Battery Life | 296 days With Sub AV Sensor with AV9000 Analyzer – 4 Lantern Batteries – (no modem, room temperature) at 15 minute logging intervals |
| Certifications | Logger: CE, optional AC power supply: UL/CSA/CE |
| Communication | Local Communications: USB, RS232 (Baud rates: 9600, 19200, 38400, 57600, 115200) |
| Communication (optional) | Remote Communications (optional) Wireless modem: CDMA 1xRTT or GPRS |
| Data Storage | events maximum in non-volatile flash memory |
| Data Storage 2 | Sample History: 2000 sample events maximum in non-volatile flash memory |
| Data Storage 3 | Datalog: 325 k data points, 1128 days for 3 channels at 15-minute log intervals |
| Datalog Channels | maximum |
| Dimensions (H x W x D) | 400 mm x 254 mm x 220 mm |
| Environmental Rating | NEMA 6P |
| Level Accuracy | ±0.16% full scale ±1.5% of reading @ constant temp (±2.5ºC) ±0.20% full scale ±1.75% of reading ±0.25% full scale ±2.1% of reading |
| Level Measurement Method | Differential pressure transducer with stainless steel diaphragm and atmospheric pressure reference |
| Level Range | Standard: 0–3 m (0–10 ft)
Extended: 0–9 m (0–30 ft) |
| Logging | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 or 60 minutes. |
| Manual Languages | English |
| Material | PC ABS structural foam |
| Modem | Non-Wireless |
| Operating Temperature Range | -18 – 60 °C at 95% Relative Humidity |
| Power Requirements (Voltage) | 8 – 18 V DC |
| Pre-configuration? | AV9000 Module |
| Protocol | Local Modbus RTU |
| Recommended Range | -1.52 to 6.10 m/s (-5 to 20 ft/sec) |
| Sensor Connector | 1, with AV9000 |
| Sensor Connectors | 1, no aux |
| Sensor Ports | 1, 2 or 4 ports |
| Sensors Included | AV9000 Analyzer Module (Submerged AV Sensor sold separately) |
| Storage Conditions | -40 °C to 60 °C |
| Supported Sensors | Submerged Area Velocity Sensor |
| Typical Minimum Operating Depth | 2 cm (0.8cm) |
| Velocity Accuracy | ±2% of reading or 0.05 fps |
| Velocity Measurement Method | Doppler ultrasonic; twin 1 MHz piezoelectric crystals |
| Velocity-Induced Depth Error | Compensated based on flow velocity |
| Warranty | 12 months |
| Weight | Four batteries: 8.2 kg |
| Weight 2 | No batteries: 4.5kg |
