ISCO LaserFlow Non-Contact Velocity Sensor
| Brand | ISCO |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | LaserFlow |
| Pricing | Upon Request |
Overview
The ISCO LaserFlow Non-Contact Velocity Sensor is an engineered solution for accurate, maintenance-free open-channel flow monitoring in wastewater and environmental applications. It employs dual non-invasive measurement principles: laser Doppler velocimetry (LDV) for sub-surface velocity profiling and ultrasonic time-of-flight for non-contact liquid level determination. Unlike traditional contact-based sensors—such as propeller meters or electromagnetic probes—the LaserFlow eliminates mechanical wear, fouling-related drift, and calibration instability caused by sediment buildup or biofilm adhesion. Its optical architecture enables stable, high-reproducibility velocity acquisition at discrete depths beneath the water surface, supporting robust area-velocity (A-V) flow computation per ASTM D5488 and ISO 10707 standards. Designed for continuous deployment in challenging municipal infrastructure—including combined sewer overflows (CSOs), sanitary sewer overflows (SSOs), inflow & infiltration (I&I) studies, and consent decree compliance programs—the LaserFlow delivers traceable, audit-ready data under GLP-aligned operational protocols.
Key Features
- Non-contact laser Doppler velocimetry for single-point or multi-point sub-surface velocity measurement
- Integrated ultrasonic level sensing with automatic temperature compensation
- IP68-rated stainless-steel and marine-grade polymer housing, rated for permanent submersion and exposure to H2S-rich environments
- Zero dead-zone measurement geometry—no blind zones near channel bottom or sidewalls
- Bidirectional velocity resolution (±0.001 m/s) with real-time polarity detection
- Ground-level retrieval system with ergonomic locking handle and telescoping retrieval arm—eliminates confined-space entry during maintenance
- Configurable sampling intervals (1 sec to 24 hr), programmable averaging windows, and auto-triggered event logging
Sample Compatibility & Compliance
The LaserFlow is validated for use in partially filled pipes, trapezoidal/rectangular/V-notch weirs, Parshall flumes, Palmer-Bowlus flumes, and natural channels with hydraulic gradients ≤5%. It complies with EPA Method 1609 for wastewater flow monitoring and supports data integrity requirements under 21 CFR Part 11 when deployed with ISCO Signature or 2160-series controllers featuring electronic audit trails. All firmware and configuration files are digitally signed; sensor calibration certificates include NIST-traceable reference documentation. The device meets IEC 61000-4 electromagnetic immunity standards and UL 61010-1 safety certification for industrial instrumentation.
Software & Data Management
Sensor configuration, real-time diagnostics, and historical data retrieval are managed via ISCO’s Teledyne FlowManager™ software (v5.2+), which supports secure HTTPS/TLS 1.2 communication and role-based user access control. Raw velocity vectors, level time-series, and computed flow rates (L/s, MGD, ft³/s) are timestamped with GPS-synced UTC and stored locally on SD card (optional) or transmitted via cellular (LTE-M/NB-IoT), Ethernet, or RS-485 Modbus RTU. Data exports comply with EPA’s CDX (Central Data Exchange) schema and can be ingested directly into SCADA platforms including Ignition, Siemens Desigo, and Schneider EcoStruxure. Firmware updates are delivered over-the-air with SHA-256 hash verification.
Applications
- Permanent and portable flow monitoring for CSO/SSO compliance reporting and CMOM program validation
- Influent, inter-process, and effluent flow measurement at WWTPs—compatible with primary clarifiers, aeration basins, and disinfection channels
- Industrial discharge monitoring per NPDES permit conditions, including batch process effluents and cooling water returns
- Stormwater conveyance systems (requires optional light-shield enclosure for solar interference mitigation)
- Irrigation canal hydraulics studies (light-shield enclosure recommended for outdoor daylight operation)
- Leak detection and flow balance analysis across gravity-fed collection networks
FAQ
Does the LaserFlow require periodic recalibration?
No—laser Doppler velocity measurement is inherently absolute and does not rely on physical contact or moving parts. Calibration is performed once at factory using NIST-traceable flow rigs; field verification is optional and supported via built-in diagnostic mode.
Can it operate during full submersion or surcharge conditions?
Yes—when paired with the optional TIENet™ 350 Area-Velocity module, the system maintains continuous flow calculation using redundant Doppler velocity and differential pressure level inputs.
Is hazardous location certification available?
The standard LaserFlow carries Class I, Division 2, Group C/D rating per UL 1203; ATEX/IECEx variants are available upon request.
What communication protocols are supported?
Modbus RTU (RS-485), Modbus TCP/IP, DNP3 over Ethernet, and LTE-M with MQTT 3.1.1 endpoint support.
How is sensor alignment verified post-installation?
An integrated digital inclinometer provides real-time pitch/roll feedback via FlowManager™; laser beam divergence and spot size are pre-characterized and documented in the installation manual.
