Sigma Model 930/930T Portable System
Sigma Model 930/930T Area Velocity Flow Meter
The Sigma 930 Long-Term Area Velocity Flow Meter - our most advanced flow meter - supports three interchangeable sensors, long battery life, and increased data storage, and offers optional interfaces with samplers and modem capability. The Sigma 930 Long-Term Area Velocity Flow Meter is designed for long-term/ permanent flow studies with approximately 365-day battery life and a strong NEMA 6P PVC enclosure. Permanent collection system monitoring can now be done confidently, within an affordable budget.
System Benefits Include:
- Multi-point and/or redundant monitoring with a single meter.
- Up to three level and velocity sensors.
- Low power draw creates an extended year-long battery life.
- Optional rainfall logging feature records and characterizes rain events, a true innovation in water monitoring.
- Optional internal modem automates data retrieval, paging and reporting.
- Optional sampler pacing capabilities, ideal for CSO and Stormwater.
- NEMA 6P sealed to withstand submergence and prolonged surcharge conditions.
- Advanced, ultrasonic one-MHz Doppler technology avoids signal dropouts and ensures high levels of accuracy in low-flow, full-pipe or reversed-flow conditions, without the need for on-site calibration.
- A higher level of accuracy, since the 930 automatically corrects the effects of temperature on level measurement.
- Patented drawdown correction feature corrects the effects of velocity on accurate level measurement. Multiple sensors for redundancy, averaging and multiple pipe monitoring.
Ideal Applications include:
- Long-Term Flow Monitoring Sanitary
- Sewer Evaluation Studies
- CSO Studies and Monitoring
- NPDES Stormwater Compliance
- Permanent Collection System Monitoring
Sigma Model 930 Data Sheet
Sensors
Submerged Area/Velocity
Ultrasonic Downlooking
In-Pipe Ultrasonic
Wafer Velocity Flow
Compatible Software
