Isco LaserFlow™ laser doppler velocity sensor

Isco Non-Contact LaserFlow™ Velocity Sensor

The LaserFlow is ideal for a broad range of wastewater monitoring applications. It is compatible with both the Teledyne Isco Signature Flow Meter and the Teledyne Isco 2160 LaserFlow Module, depending on the type of installation.
During submerged conditions, flow measurement continues without interruption with optional Doppler Ultrasonic Area Velocity technology.

With its specially designed mounting bracket in place, the LaserFlow can be deployed and removed
from above ground, eliminating unsafe and timeconsuming confined space entry. A variety of communication options enable programming and data retrieval from a remote location. Information about data quality can be recorded and transmitted alongside the flow data.

Options and Accessories :

• Flow measurement during submerged conditions via Ultrasonic Doppler technology
• Redundant flow measurement w/ simultaneous
• Continuous Wave Doppler or Ultrasonic Level Sensing
• Installation in Class 1 Zone 1 areas (pending approval)

Isco LaserFlow applications

• Permanent and portable flow measurement for CSO, SSO, I&I, SSEs, CMOM, and other sewer monitoring programs.
• Shallow flow measurement in large and small pipes.
• Wastewater treatment plant influent, process, and effluent flow measurement.
• Industrial process and discharge flow measurement
• Stormwater conveyance and outfall (sunshade required)
• Irrigation canals and channels

Isco LaserFlow features

Primary Measurement:

TIENet™ LaserFlow™ Device

• Size (HxWxL): 38.01 x 26.21 x 56.7 cm
• Weight : 8,7 Kg
• Cable Lengths : 5, 10, 15, or 23 m
• Enclosure : IP68
• Laser Class : Class 3R Laser Product
• Précision de débit : ±5% (Typique, sous condition de débit normal)
• Temperature Range : Operating: 0 to 60 °C – Storage: -40 to 60 °C
• Power Required : Input voltage: 8 to 26 VDC – 12VDC Nominal
• Flow Accuracy : ±5% of Reading. (Typical, under normal flow conditions)

Velocity

• Technology : Non-Contact Laser Doppler
• Measurement Range : -4.6m/s to 4.6 m/s
• Velocity Measurement : Bi-Directional (Turbidity > 20 NTU; Distance from liquid surface to bottom of sensor < 48 inches)
• Accuracy : ±0.5% of reading ±0.03 m/s
• Minimum Velocity : 0.25 m/s

Level

• Technology : Non-Contact Ultrasonic
• Measurement Range : 0 to 3 m (0 to 10 ft) from measurement point
• Accuracy @ 22 °C : ±0.006 m (0.02 ft) at <1 ft level change,  ±0.012 m (0.04 ft) at >1 ft level change
• Beam Angle : 10° (5° from center line)

Optional Secondary Measurement:

TIENet™ 350 AV Sensor:

• Probe Size (HxWxL) : 19 x 33 x 152 mm
• Materials : Sensor: Epoxy, chlorinated CPVC, SST – Cable: UV-Rated PVC
• Temperature Range : 0 to 70 °C

Velocity

• Technology : Submerged Continuous Wave Doppler Ultrasonic
• Measurement Range : -1.5 to 6.1 m/s
• Velocity Measurement : Bi-Directional
• Accuracy : ±0.03 m/s (±0.1 ft/s) from -5 to 5 ft/s – ±2% of reading from 5 to 20 ft/s, Uniform velocity profile
• Minimum Depth : 25 mm

Level

• Technology : Submerged Differential Linear Pressure Transducer
• Measurement Range : 0.01 to 3.05 m
• Accuracy : ± 0.01%FS (Maximum non-linearity, hysteresis, & temperature error from actual liquid level)
• Maximum Depth : 10.5 m
• Stability : ±0.007 m/yr

Isco LaserFlow documentation

Teledyne Isco laserflow flow meter

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Isco LaserFlow Flowmeter operation

The ISCO LaserFlow flowmeter measures flow in open channels with non-contact laser technology for velocity and non-contact ultrasonic for level.
Below are the principles of operation, installation and optional modules :

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