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Submerged AV System

Submerged AV System
Product #: FL900AV.97
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Reliable, Budget-Saving Monitoring

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.

Increase Monitoring Crew Safety

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.

Improved Accuracy

The AV9000 Area Velocity Analyzer module is compensated
for temperature, thus eliminating potential velocity
errors of 2.7% over a 10ºC seasonal swing*. Its advanced
multi-scale digital Doppler analysis provides the optimal
combination of resolution and noise immunity. Mirror Image
Processing eliminates sign errors and the advanced Target
Set Processing reduces the impact of dominant targets
(particles) in the stream to deliver a more representative
velocity.

Easy Installation/Versatile Mounting Options

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.

Specifications

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
Datalog Channels: maximum
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
Dimensions (H x W x D): 400 mm x 254 mm x 220 mm
Environmental Rating: NEMA 6P
Height: 400 mm
Level Accuracy: ±0.16% full scale ±1.5% of reading
@ constant temp (±2.5ºC)

±0.20% full scale ±1.75% of reading
from 0-30ºC (32-86ºF)

±0.25% full scale ±2.1% of reading
from 0-70ºC (32-158ºF)
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 VDC
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
Sensors Included: Sub AV
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-Induced Depth Error: Compensated based on flow
velocity
Velocity Measurement Method: Doppler ultrasonic;
twin 1 MHz piezoelectric crystals
Warranty: 12 months
Weight: Four batteries: 8.2 kg
Weight 2: No batteries: 4.5kg