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DFM6.1 Doppler Flow Meter

Gaining flow measurement inside a pipe can sometimes be tricky. The DFM 6.1 Doppler Flow Meter works as a non-contacting, clamp-on flow meter to offer effective clamp-on pipe flow measurement from outside the pipe. Its Doppler technology makes it perfect for use as a water flow meter, specifically for difficult liquids, or liquids with suspended solids such as wastewater, slurries, sludge, chemicals, viscous liquids, and abrasives. The non-invasive Doppler ultrasonic flow meter fits a pipe 12.5 mm (0.5 in) inside diameter or larger, and clamps to the outside of the pipe, gaining flow measurement readings without interrupting the process.

Product Attachments

BROCHURE | DATASHEET | INSTALLATION MANUAL

General Specifications
Spec name: Description:
Flow Rate Range ±0.03 m/s to 12.2 m/s (±0.1 ft/s to 40 ft/s) in most applications
Pipe Size Any pipe ID from 12.7 mm to 4.5 m (0.5 in to 180 in)
Accuracy ±2% of reading or 0.03 m/s (0.1 ft/s) whichever is greater. Requires solids or bubbles minimum size of 100 microns, minimum concentration 75 ppm.
Repeatability: ±0.1%, Linearity ±0.5%
Display White, backlit matrix – displays flow rate, relay states, 16-digit totalizer, operating mode, and calibration menu
Configuration Built-in 5-button keypad with English, French, or Spanish language selection
Power Input 100-240 V AC 50/60 Hz, 10 VA maximum
Optional: 9-32 V DC, 10 W maximum
Output Isolated 4-20mA (1000 ohm load max.) or 0-5 V DC (field selectable)
Control Relays Qty 2, rated 5 amp SPDT, programmable flow alarm, and/or proportional pulse
Data Logger Built-in 26 million point logger with a USB output and Windows software
Enclosure Heater NEMA4X (IP 66) polyester with a clear polycarbonate face
Operating Temperature (Electronics) -23 °C to 60 °C (-10 °F to 140 °F)
Shipping Weight 6.3 kg (14 lbs)

 

Sensor Specifications
Spec name: Description:
Model SE4 Single-head ultrasonic with 7.6 m (25 ft) shielded cable and stainless steel mounting kit for pipes 12.7 mm (0.5 in) ID or larger.
Designed to withstand accidental submersion to 10 psi. Certified non-incendive for Class I Division 2, Groups A, B, C, D hazardous locations
Operating Temperature -40 °C to 150 °C (-40 °F to 300 °F)
Exposed Materials 316SS
Hazardous Locations Certified Non-incendive for Class I, Div 2, Groups A, B, C, D
Optional: Certified Intrinsically safe for Class I, Div 1, Groups C, D; Class II, Groups E, F, G; Class III; Encl. Type 4
Optional: Certified Intrinsically safe for sensor mounting in ATEX.IECEx Zone 0, Ex ia IIB T4 Ga, hazardous location
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