The FLO-DAR® AV Sensor provides an ideal solution for non-contact, maintenance-free portable or permanent sewer flow monitoring.
Products Open Channel Flow Meters Ultrasonic & Radar FL900 Flow Logger
Built for versatility, the FL900 is easy to install on walls, poles, or manhole ladders in just minutes. It can be secured using a standard carabiner or an optional 4-bolt wall mount for various configurations. With an impressive battery life of 6 to 10 months, depending on sensor usage and 15-minute intervals, the need for frequent site visits is greatly reduced, allowing your team to focus on more critical tasks.
Ideal for a wide range of municipal applications such as Sanitary Sewer Evaluation Studies, Inflow & Infiltration (I&I), Combined Sewer Overflow (CSO) monitoring, and capacity planning, the FL900 series collects and logs data from up to four sensors. This data can be easily retrieved via USB, RS232, or remotely through a wireless network using FSDATA software. The FL900 also connects to external power sources, rain gauges, or can be used to pace a Hach sampler, offering flexibility and scalability for various project needs.
For industrial applications, the FL900 proves equally valuable, handling process waste, plant influent and effluent, non-contact cooling water, and stormwater monitoring with ease. Whether for municipal or industrial use, the FL900 Flow Logger ensures accurate data collection and safe, efficient operation across the board
*Two-week production time starts when our production facility receives the order. Any missing or technical issues for inputting order information may cause delays. Comprehensive or larger orders are subject to longer production times. Contact your seller or the factory for more information.
The FL900 Flow Logger provides users with a reliable, budget saving solution for open channel portable flow monitoring applications. The robust logger’s time-saving features will drastically decrease site time and increase safety for monitoring crews.
The Logger LED provides instant communication verification of correct site set-up and flow meter communication prior to leaving the site. In addition, the FL900 can be supported by our Redundant Level System powered by the Area Velocity (AV) Sensor upgrade.
With the time saving features designed into the FL900 Flow Loggers, crews spend less time in the manhole and less time on site to decrease monitoring costs while increasing the safety of flow monitoring crews.
Reduce site visits to change batteries with FL900’s long battery life. The estimated battery life at 15 minute intervals is 6 to 10 months, sensor dependent.
The logger can be quickly attached to a wall, pole or manhole ladder in minutes. Users can choose to hang logger from standard carabiner or optional 4-bolt wall mount for pole, horizontal or vertical wall mount or ladder rung mount.
Eliminate risk by using wirelessly transmitted flow data to make smarter, real-time decisions regarding your collection system. With wireless-enabled models, you’ll receive alarms, via email or text, alerting you to any concerns at your monitoring sites.
Plus, using FSDATA Online, you’ll have secure 24/7 access to your flow data and wireless meter from the comfort of the internet. With FSDATA, site visits to collect flow data or to adjust meter settings are eliminated, decreasing maintenance costs. And you can set alarms and view sensor diagnostics remotely to maximize uptime.
| Accuracy | Timebase Accuracy: +/- 0.002 % , synchronized every 24 hours with server software and modem |
|---|---|
| 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 |
| Alarm Actions | Send an e-mail, or send text message (SMS) (requires wireless logger and active wireless service), trigger sampler, change logging interval, change call interval |
| 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 |
| Datalog Channels | 16 maximum |
| Data Storage | Datalog: 325,000 sensor measurement data points; 1128 days for 3 channels at 15-minute log intervals |
| Data Storage 2 | Sample History: 2000 sample events maximum in non-volatile flash memory |
| Dimensions | 25.4 x 22 x 40 cm |
| Enclosure Construction | PC/ABS structural foam |
| Environmental Rating | NEMA 6P (IP68) |
| Interface | Hach AS950 Automatic Sampler |
| Internet Application Software | FSDATA Online software for flowmeter programming, data management and report generation for wireless flow meters |
| LED Status Indicator |
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| Logging Intervals | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 or 60 minutes |
| Manual Languages | English |
| Modem | Active Verizon Wireless |
| Operating Temperature Range | -18 to 60ºC (0 to 140ºF) at 95% RH |
| PC Data Transfer Software | FSDATA Desktop Instrument Manager software required for programmig logger. Can be used for data management and report generation. It is compatible with desktop/lap top computers utilizing Windows operating system. Minimum resolution: 1024×768. |
| Protocol | Local Modbus RTU |
| Rain Gauge Enabled | No |
| Sensor Connector | 4 |
| Sensor Connectors | 4, additional options |
| Sensor Ports | 1, 2, or 4 |
| Special Remarks | When paired with a Hach sampler, successful or failed sample, as well as bottle number, are stored in sample history. Sample history can be included in reports generated by FSDATA. |
| Standard storage temperature | -40 to 60ºC (-40 to 140ºF) |
| Storage Conditions | -40 °C to 140 °C |
| 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 |
| Weight | Using Model FL900: |
| File Name | Category | Language | Size | Date | Edition | |
|---|---|---|---|---|---|---|
| Data Delivery Services (DDS) : Right Data. Right Results | Brochures | English US | 5 MB | 2024-09 | Sept24 | |
| Promotion – FL901 Basic Bundle Package for 2025 | Brochures | English US | 2 MB | |||
| FL900 Series Flow Logger | Data Sheets | English US | 1 MB | 2024-09 | Sept24 | |
| US9000 Ultrasonic Sensor Series: Flow Monitoring & Level Alarming | Data Sheets | English US | 998 KB | 2024-09 | Sept24 | |
| Basic User Manual: FL900 Series Flow Logger | Manuals | English UK | 3 MB | 2024-10 | Ed11 | |
| Basic User Manual: FL900 Series Flow Logger (English US) | Manuals | English US | 2 MB | 2024-10 | Ed11 | |
| FSDATA Desktop Instrument Manager User Manual | Manuals | English US | 2 MB | 2024-10 | Ed4 | |
| Full User Manual: FL900 Series Flow Logger | Manuals | English US | 2 MB | 2024-10 | Ed11 | |
| User Instructions: Antennas for flow products | Manuals | English US | 473 KB | 2024-10 | Ed4 | |
| FL900 Firmware V2.02 | Software/Firmware | English US | 474 KB | V2.02 | ||
| FL900 Modem Upgrade Setup | Software/Firmware | English US | 61 MB |
The FLO-DAR® AV Sensor provides an ideal solution for non-contact, maintenance-free portable or permanent sewer flow monitoring.