UFM-DWG-Series

Clamp on Transit Time Ultrasonic Flow Meter For 2.5 in to 10 in Pipes

Clamp-on, non-invasive Flow Meter
Bidirectional flow measurement system
Measures flow rate, total and velocity of water flow
Set up the meter through keypad interface or with SoloCUE® Flow Device Manager software

See Product Overview

UFM-DWG-Series

From ^SGD 5,752.48

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6 Variations available

See all series options below

Data Sheet

Product Overview

Accuracy ± 1 %
Calibration Option Factory Calibrated
Certifications CE
Data Interface BACnet MS/TP, Modbus RTU, USB
Display Language English, French, German and Spanish selectable
Display Note Keypad: 4-button navigation, membrane keypad with domed tactile feedback Resolution: 128 × 64 pixel LED backlit graphical display; adjustable brightness and timeout
Display Type LED
Electrical Output 4 to 20 mA, Two Pulse, Frequency
Enclosure Ratings IP65
Form factor Pipe Remote mount
Keypad Yes
Materials 316 Stainless Steel, Polycarbonate
Measurement Type Transit Time
Number of Outputs 4
Operating Temperature, Max 60 °C
Operating Temperature, Min -20 °C
Output Detail Pulse / Frequency /Digital : Two outputs, each selectable as frequency, pulse, forward/reverse flow or alarm output; isolated open collector, 5-30V DC, 50 mA maximum, externally or internally sourced with pullup resistor Digital alarm output: configurable high or low Frequency output: 63 Hz-10 kHz maximum Pulse (totalizer) output: 100 Hz maximum output open collector, pulse width 5-500 ms programmable Analog Output: 0-20 mA and 4-20 mA drive up to 800 Ohms; minimum 16-bit resolution, isolated Open Collector Output: 5 to 30 Vdc, max. 50 mA externally or internally sourced
Pipe Size, Max 10 in
Pipe Size, Min 2.5 in
Process Temperature, Min -40 °C
Pulse Rates 100 Hz
Repeatability ±0.2%
Repeatability Note ±0.2% of reading
Reserved Type Standard
Series ID UFM-DWG-Series
Software SoloCUE
Storage Temperature, Max 80 °C
Storage Temperature, Min -40 °C
Supply Power Type DC
Supply Voltage 9 to 28 Vdc
Velocity, Max 40 ft/s
Velocity, Min 0.1 ft/s

Supported Applications

The Omega UFM-DWG Series is a clamp-on transit time ultrasonic flow meter designed for measuring the volumetric flow of clean water in pipes ranging from 2.5 inches to 10 inches (DN65...DN250). The series measures flow rate, total volume, and velocity without requiring pipe cutting or tapping. Documented applications include building automation, water distribution, and wastewater collection systems.

Specific fluid services supported by the UFM-DWG Series include:

Potable water
Reclaimed water
Chiller water
Boiler feed water
Make-up water
Condenser water
Condensate

The meter is suitable for water containing small amounts of suspended solids or gas bubbles.

Operating Conditions & Performance

The UFM-DWG Series operates with a velocity range of 0.1...40 ft/s (0.03...12 m/s) bidirectional. Flow accuracy varies by pipe size and transducer type:

JZ, KZ, NZ, RZ, WZ for pipes > 2 in. (50 mm): ±1% of reading or ±0.01 ft/s (0.003 m/s), whichever is greater
CA-CT transducers for 1...2 in. (25...50 mm) pipes: ±1% of reading ±0.03 ft/s (0.01 m/s)
Transducers for 3/4 in. (20 mm) and smaller are accurate to ±1% full scale

The series offers a repeatability of ±0.2% of reading.

Configuration Options

The UFM-DWG Series supports multiple transducer configurations, transmitter mounting options, and communication protocols to accommodate diverse installation requirements.

Transducers & Mounting

RZ (IP54): Standard pipe; PBT glass filled construction with PVC cable jacket. Temperature range: -40...250° F (-40...121° C). Cable length up to 300 ft (90 m).
NZ (IP67): Standard pipe; CPVC, Ultem construction with Polyethylene cable jacket. Temperature range: -40...194° F (-40...90° C). Cable length up to 300 ft (90 m).
WZ (IP68): Standard pipe, submersible; CPVC, Ultem construction with Polyethylene cable jacket. Temperature range: -40...194° F (-40...90° C). Cable length up to 300 ft (90 m).
JZ, KZ (IP54): Standard pipe with integrated rail; PBT glass filled construction. Temperature range: -40...250° F (-40...121° C). Cable length up to 100 ft (30 m).
CA...CT: Fixed small pipe transducers for pipes 0.5...2 in. (12...50 mm) with CPVC, Ultem construction and Polyethylene cable jacket.

Housing & Display Options

The transmitter enclosure is IP66 rated polycarbonate. Mounting options include wall or pipe remote mount or integral mount; the enclosure can be rotated in 90° increments. The display option includes a 128 × 64 pixel LED backlit graphical display with adjustable brightness and timeout, featuring a membrane keypad with domed tactile feedback.

Outputs & Connectivity

The series provides two selectable outputs (frequency, pulse, forward/reverse flow, or alarm) as isolated open collector (5...30V DC, 50 mA maximum). Additional output capabilities include:

Digital alarm output: configurable high or low
Frequency output: 63 Hz...10 kHz maximum
Pulse (totalizer) output: 100 Hz maximum, pulse width 5...500 ms programmable
Analog Output: 0...20 mA and 4...20 mA drive up to 800 Ohms; minimum 16-bit resolution, isolated
Networks: EIA-485 with Modbus RTU or BACnet MS/TP (baud rates 9600 through 115200)
Connectivity to AquaCUE or BEACON cellular endpoints

Power & Environmental Ratings

A Class II power supply is required; the meter operates on 9...28V DC @ 5 W maximum. Ambient operating temperature ranges are -4...140° F (-20...60° C) with display and -40...158° F (-40...70° C) without display. Storage temperature is rated from -40...176° F (-40...80° C).

Key Product Differences

The UFM-DWG Series model number construction defines specific configurations for certification, transducer type, transmitter mounting, and units of measure.

Certification: 'G' denotes General Area, CE compliance. Optional certifications include FM Class 3810:2018, ANSI/ISA 61010-1:2012, ANSI/IEC 60529:2004, CAN/CSA-C22.2 No. 61010-1:2012, and CSA C22.2 No. 60529:2005.
Transducer Type: Codes such as RZ (IP54), NZ (IP67), WZ (IP68 submersible), JZ/KZ (Integrated rail IP54), and CA...CT (Fixed small pipe) define the sensor construction, cable jacket material, temperature limits, and supported pipe sizes.
Transmitter Type: 'E' indicates 24V DC Meter Mounted; 'F' indicates 24V DC Remoted Mounted.
Display: 'S' provides a Standard display with keypad; 'W' is No display with keypad.
Cable & Conduit Lengths: Configurable remote cable lengths include None (WW), 15 ft, 30 ft, 50 ft, 75 ft, and 100 ft. Conduit options follow similar length codes but are not available with Easy Rail transducers.
Units of Measure: Configurable totalizer/flow rate units include Gallons (G), Cubic Meters (T/H), Cubic Feet (F/J), Liters (N/P/Q), Million Gallons (M), and Acre Feet (A).