Hach, FL902AVUS.97, Redundant-Level Flow Monitoring System
Catalog Number: FL902AVUS.97
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Category
| Accuracy | FL900: Timebase Accuracy: +/- 0.002 % , synchronized every 24 hours with server software and modem |
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| Alarm | Maximum of 16 channel alarms including high/high, high, low, low/low and system alarms including low battery, low RTC battery, low slate memory, slate memory full, sensor timeout, sensor ID error |
| Alternate KTO? | No |
| Battery Life | Varies with sensor type, logging intervals, telemetry and environment. |
| Certifications | Logger: CE; optional AC power supply: UL/CSA/CE |
| Communication | USB RS232 (Baud rates: 9600, 19200, 38400, 57600, 115200) |
| Communication (optional) | Remote Communications (optional): Wireless modem: 3G & 4G LTE |
| Data Storage | Datalog: 325,000 sensor measurement data points; 1128 days for 3 channels at 15-minute log intervals Event Log: 1,000 events maximum in non-volatile flash memory Sample History: 2,000 sample 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 | 16 maximum |
Unless otherwise stated, the minimum order amount is USD 1,000.
For orders below USD 1,000, an additional handling fee may apply, or we may arrange local delivery / local handover where available.
All quotations are subject to final confirmation, including product availability, lead time, batch information, shipping cost, and applicable export or handling requirements.
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| Environmental Rating |
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| NEMA 6P (IP68) |
| Level Accuracy | US9003: 0.2 mm/25.4 mm (0.008 in./in.) from the calibration point at steady state temperature, still air and ideal target |
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| Level Measurement Method | US9003: Down-looking ultrasonic Sub AV: Differential pressure |
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| Level Range | 0 to 10 ft range |
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| Logging | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 or 60 minutes Primary and secondary intervals for dynamic logging. |
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| Manual Languages | English |
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| Modem | Non-Wireless |
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| Operating Temperature Range | -18 to 60ºC (0 to 140ºF) at 95% RH |
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| Power Requirements (Voltage) | 8 - 18 V DC |
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| Pre-configuration? | AV9000 Module, SUB AV 30ft and US9003 Ultrasonic Sensor |
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| Protocol | Local Modbus RTU |
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| Recommended Range | US9003: 0 to 382.91 cm (0.00 to 150.75 in.) |
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| Sensor Connector | 2, with US9003 AV9000 & SUB AV |
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| Sensor Connectors | 2, additional options |
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| Sensor Ports | 2 |
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| Sensors Included | Sub AV & Ultrasonic |
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| Storage Conditions | -40 to 60ºC (-40 to 140ºF) |
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| Supported Sensors | FLO-TOTE 3, FLO-DAR, FLO-DAR with Surcharge Velocity Sensor (SVS), Submerged Area Velocity Sensor (requires AV9000 Analyzer Module), Rain Gauge, Sigma 950 Flow Meter (requires IM9001), US9001, US9002 |
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| Typical Minimum Operating Depth | Sub AV: 2 cm (0.8cm) |
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| Velocity Accuracy | ±2% of reading or 0.05 fps** **Uniform velocity profile, known salinity, positive flow. Field performance is site specific. |
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| Velocity Measurement Method | Doppler ultrasonic; twin 1 MHz piezoelectric crystals |
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| Velocity-Induced Depth Error | Compensated based on flow velocity |
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| Warranty | 12 months |
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| What's included? | The Hach redundant-level flow monitoring system components include the area velocity sensor, in-pipe ultrasonic sensor and the FL902 Flow Logger. |
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