Series-UFM2

Clamp-On Ultrasonic Flowmeter for 3/4 to 7 in Pipes – 4-20 mA Output

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Save on installation costs with non-invasive pipe measurement
Simplified installation with all necessary components included, such as converter, sensor, cables and mounting accessories
Fit application requirements with compact and lightweight design, that can be easily installed, all in one clamp-on unit intended for homogeneous liquids that contain no air
Cut down evaluation time with easy-to-read text displaying both flow rate and total with a convenient backlight for visual comfort

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Series-UFM2

From ^$ 3,653.55

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2 Variations available

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Data Sheet

Product Overview

Accuracy ± 3 %
Accuracy Detail ± 3% of flow reading for >0.98 ft/s (>0.3 m/s)
Applications Fluid Measurement and Control
Display Note Backlit: 3.27˝ H x 0.74˝ W (83.1 mm x 18.8 mm), 2 line x 16 characters
Display Type LCD
Electrical Connection Cable
Enclosure Ratings IP54
Linear Flow Rate, Max 32.8 ft/s
Linear Flow Rate, Min 0.33 ft/s
Load Resistance 620 Ω max
Materials Polycarbonate
Media Compatibility Clean process / cooling water
Operating Temperature, Max 122 °F
Operating Temperature, Min 32 °F
Output Detail Analog: 1 opto-isolated: 4-20 mA; Error current: 3.5 mA; Load resistance: 620 Ω max; Pulse: 1 optoisolated MOSFET relay, 500 mA max, 166 pps max, 200 Hz max
Output Signal Current, DC Pulse
Power Consumption 7 W
Process Temperature, Max 185 °F
Process Temperature, Min 32 °F
Repeatability ± 0.15%
Repeatability Note ± 0.15% of measured value
Response Time <1 s
Series ID Series-UFM2
Supply Power Type AC/DC
Supply Voltage 12 to 24 Vac/Vdc
Tube Wall Thickness 0.39 in
Weight 2.9 lb

Supported Applications

The Dwyer Series UFM2 Compact Ultrasonic Flowmeters are clamp-on instruments designed for flow rate and velocity measurement in pipes. The series implements the transit-time difference method to measure clean water with less than 3% by volume of particulate content.

Documented applications include:

Hot water metering and flow measurement
Chilled water metering and flow measurement
Potable water metering and flow measurement
Process water metering and flow measurement
Ultra-pure water metering and flow measurement

The UFM2 is suitable for use on steel, copper, or plastic pipes with no internal lining.

Operating Conditions & Performance

The Series UFM2 operates within a process temperature range of 32 to 185°F (0 to 85°C) and an ambient temperature range of 32 to 122°F (0 to 50°C). The instrument measures flow velocities from 0.33 to 32.8 ft/s (0.1 to 10 m/s).

Performance specifications include:

Accuracy: ±3% of flow reading for >0.98 ft/s (>0.3 m/s)
Repeatability: ±0.15% of measured value
Response Time: <1 s
Enclosure Rating: IP54
Housing Material: Plastic polycarbonate

The unit is powered by an external 12-24 VDC/VAC supply with a maximum power consumption of 7 W. The device weighs 2.9 lb (1.315 kg).

Configuration Options

The Series UFM2 supports pipe outside diameters from 3/4 to 7" (25 to 180 mm), with applicable wall thicknesses ranging from 0.02 to 0.39" (0.5 to 10 mm). Pipe size applicability is dependent on the specific pipe material and internal diameter.

Configurable outputs include:

Analog Output: One opto-isolated 4-20 mA signal with a load resistance of 620 Ω max. Error current is indicated at 3.5 mA.
Pulse Output: One opto-isolated MOSFET relay, rated for 500 mA max, 166 pps max, and 200 Hz max.

The electronics module features a backlit display measuring 3.27" H x 0.74" W (83.1 mm x 18.8 mm) with a capacity of 2 lines by 16 characters. Electrical connections are made via female SMB coaxial connectors using a supplied 16.4' (5 m) cable.

Available options include:

-NISTCAL-FU: NIST traceable calibration certificate for ultrasonic flowmeters

Key Product Differences

The Series UFM2 is ordered using a model number guide format: UFM2 - <OUTPUT TYPE> - <PIPE SIZE> - <OPTIONS>. Specific pipe size codes define the applicable range: