Stingray   Portable Level-Velocity Logger

Stingray is a compact, battery-powered logger with an ultrasonic sensor. It data logs level, velocity and water temperature readings for flow monitoring through open channels, partially full sewer pipes and surcharged pipes. It is designed for stormwater, combined effluent, raw sewage, irrigation water and stream flow surveys.

The Greyline Logger will display log files and flow rates in graph and tabular formats. It will generate flow reports including minimum, maximum and average flow, calculate flow totals, and convert between common measurement units.

Stingray uses a submerged ultrasonic sensor to continuously measure both Velocity and Level in the channel. The sensor is a completely sealed ultrasonic unit with no orifices or ports. It mounts inside the pipe or at the bottom of a rectangular channel. No special compounds, tools or hardware are required.

Specifications.

Electronics Enclosure: Watertight, airtight, dust proof (IP 67) polycarbonate
Accuracy: Level: ±0.25% of Range. Velocity: ±2% of Reading
Display: LCD displays: Level, Velocity, Water Temperature, Battery and memory capacity
Operating Temp. (electronics): -4° to 140°F (-20° to 60°C)
Instrument Set-up: via Greyline Logger software for Windows: Logging Time Interval, Site Name
Logger Interval: 10 sec (15 days) to 20 min (4 years)
Data Logger Capacity: 130,000 data points
Power: 4 Alkaline 'D' cells
Output/Communications: RS232, 28,800 Baud
Velocity Measurement Range: 0.03 to 3.05 m/sec
Level Measurement Range: 25mm to 4.5m
Operating Temperature: -15 to 65°C