Description

6526 (Starflow): Water Flow Meter (Doppler)

(For measurement Flow, Total Flow, Velocity, Depth, Temperature)

The Starflow Ultrasonic Doppler Instrument is a compact, easy-to-use system for measuring the velocity and depth of water in drainage channels, large pipes, and in rivers and streams. It is suitable for use in a wide range of water qualities, from sewerage and waste water to clean streams, potable water, and even sea water. The instrument measures forward and reverse flow conditions and may be programmed to compute Flow Rate and Total Flow in pipes (Minimum pipe size should be 300mm (12”) diameter) and open channels. The Model 6526 Starflow combines an ultrasonic transducer assembly (profiled to reduce flow disturbance) with signal processing electronics. It is designed to be placed at (or near) the bottom of a water channel for “upward looking” measurement. A single cable connects instrument to a 12VDC power source.

Water velocity is measured by the Starflow ultrasonic Doppler principle which relies on suspended particles or small air bubbles in the water to reflect the ultrasonic detector signal. It measures water velocity, depth, flow, total flow, Water temperature enabling you to do a complete stream study with a single instrument. Water temperature is also measured so the instrument can adjust for the change in velocity due to speed of sound. Starflow contains a fully featured Micrologger with 512KB of memory; enough for 300000 Data measurements. It will acquire instantaneous, maximum, minimum and averaged readings. Starflow is equipped with the SDI-12 communications facility, intelligent battery supervision, a modem interface and is fully programmable. The 6526LCD Starflow Liquid Crystal Display Module, interfaces with the 6526H Starflow ultrasonic flow meter. Doppler Instrument and displays the values obtained from the most recent scan on demand. The 6526LCD is packaged in a compact weatherproof polycarbonate enclosure, fitted with pre-wired SQL type connectors.

Key Features:-

• Measures forward and reverse
• Measures Velocity, Depth, Flow, Total Flow, Temperature
• Programmable to compute flow in pipes and open channels
• Operates in water qualities from fresh water streams to primary sewage
• Communicates via RS-232 and SDI-12
• Battery powered - ideal for use in remote locations

Applications:-

• Irrigation
• Sewer monitoring
• Storm water monitoring
• Waste water treatment Plant monitoring
• Natural Streams and  Rivers
• Drainage
• Estuary and tidal Studies
• Industrial Effluent Metering
• Nutrient Load Management

 

                  Technical Specification

Velocity

Velocity Range : 21 mm/s to 4500 mm/s bi-directional

Accuracy : 2% of measured velocity

Resolution : 1mm/s

Signal Path : 30° above horizontal

 

Depth

Depth Range : 0 to 5 meter

Resolution : 0 to 2.5m – 2.5mm, 2.5 to 5m – 5mm

Accuracy : ±0.25% of calibrated lower range

Type : Hydrostatic pressure sensor vented to atmosphere

 

Temperature

Temperature : -17°C to 60°C

Resolution : 0.1°C.

 

Flow Computation : Flow rate, totalised flow

Channel Type : Pipe, open channel, natural stream

Measurements : Measures Velocity, Depth, Flow, Total Flow, Water Temperature

 

Integrated MicroLogger

Storage Memory : 512kB, CMOS RAM

Data Storage : up to 300000 data

Log Interval : Programmable, 5s to 24 hours

Scan Rates : Programmable from 5 seconds to 5 minutes

Memory Duration : Log Interval (15 Min. 150 Days, 10 Min. 125 Days)

Communication : RS-232/USB (Optional)

SDI-12 : 1200bps instrument channel

Control : CMOS output trigger

 

General

Cable : 15 meters, 9 way vented  (optional: User specified up to 100 meters)

Power Source : External battery 12V DC

Voltage : 12 VDC to 15 VDC,

Current : 70uA standby, 200mA active, 90mA communications

Average Power : 0.3 W (1 Min. scan rate)

Operating Temp : 0°C to 60°C water temperature

Pipe flow measurement : Minimum pipe size should be 300mm (12”) diameter

Material : PVC body, stainless steel mounting plate

Dimensions : 290mm x 70mm x 25mm

Weight : 850g (2kg with 15m cable)