Thermo Scientific SX40 Dedicated Dual Frequency Doppler (DFD) Flowmeter

Combining Dual Frequency Doppler (DFD) technology with digital signal processing, the Polysonics SX40 is immune to much higher levels of external noises than with standard Doppler technology. The DFD technique reduces errors in flow measurement of fluids which contain particulates thus improving the ability to operate in what were previously considered marginal applications.The Hydra SX40 Dual Frequency Doppler (DFD) Dedicated Flowmeter is suited for measuring the flow of fluids with undissolved, entrained solids or dispersed gases such as:
• wastewater–primary sludge and activated sludge,
• food–dairy and fluidized foods,
• industrial–crude oil and dredging.

Performance Specifications

Velocity Range: 0.2 ft/sec to 32 ft/sec (0.06 m/sec to 10 m/sec)
Accuracy: ±1% of velocity full scale
Fluids: liquids containing particulate or entrained gas bubbles
Pipe Size: 0.5 in to 200 in (12 mm to 5000 mm)

Additional Information

option	Ultrasonic

Documentation

SX40

Product Description

Combining Dual Frequency Doppler (DFD) technology with digital signal processing, the Thermo Scientific SX40 ultrasonic clamp-on flow meter is immune to much higher levels of external noises than with standard Doppler technology. The DFD technique reduces errors in the flow measurement of fluids containing particulates, enabling the SX40 to operate in applications that were previously considered marginal to heighten process efficiency and provide a rapid return on your investment. Ultrasonic yet easy-to-install, Unlike conventional Doppler flowmeters which operate at a single frequency, the Thermo Scientific SX40 flowmeter generates two independent ultrasonic signals at different frequencies. by correlating these frequencies, the instrument automatically identifies and eliminates noise errors from sources such as variable frequency drives. In addition, the operation of the instrument is enhanced by an Expert System which allows the flowmeter to automatically “learn” the application parameters. As a result, the SX40 flowmeter can be easily commissioned in a fraction of the time necessary to configure competitive ultrasonic flowmeters.

Applications

Primary sludge
Digested sludge
Thickened sludge
Waste activated sludge
Return activated sludge
Slurries
Dredging

Features and Benefits

Accuracy to ±1% of velocity full scale
Password protection
Backlit graphics display
Excellent noise immunity
Easy-to-install and setup
AC or DC supply operation
Powerful 90,000 point data logger

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