Omega UFM2 User guide

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SERIES UFM2 | COMPACT ULTRASONIC FLOWMETERS

FEATURES/BENEFITS

• Non-invasive pipe measurement

• Simple installation with all necessary components included such as converter, sensor, cables and mounting accessories

• Compact and lightweight design, featuring an easily installed, all in one clamp-on unit intended for homogeneous liquids that

contain no air

•Screenofferseasy-to-readtextdisplayingbothowrateandtotalwithaconvenientbacklightforvisualcomfort

• Flow measurement for heat metering

• Metering and monitoring in:

◦ Chilled water ◦ Potable water ◦ Process water

SPECIFICATIONS

Service Clean water with <3% by volume of particulate content.

Range 0.33 to 32.8 ft/s (0.1 to 10 m/s).

Display Backlit: 3.27˝ H x 0.74˝ W (83.1 mm x 18.8 mm), 2 line x 16 characters.

Accuracy ±3% of ow reading for >0.98 ft/s (>0.3 m/s).

Power Requirements 12-24 VDC/VAC.

Power Consumption 7 W max.

Temperature Limits Process: 32 to 185°F (0 to 85°C); Ambient: 32 to 122°F ( 0 to 50°C).

Outputs Analog: 1 opto-isolated: 4-20 mA; Error current: 3.5 mA; Load resistance: 620 Ω max; Pulse: 1 opto-isolated

Enclosure Rating IP54.

Enclosure Material Plastic polycarbonate.

Repeatability ±0.15% of measured value.

Electrical Connections 16.4´ (5 m) cable.

Response Time <1 s.

Weight 2.9 lb (1.315 kg).

Agency Approvals CE.

DESCRIPTIONAPPLICATIONS

The Series UFM2 Compact Ultrasonic Flowmeters are economical,

clamp-on, ultrasonic owmeters. The UFM2 implements the transit-time difference to measure ow rates in pipes and can measure velocity and ow in pipes with outside diameters ranging from 3/4 to 7˝ (25 to 180 mm). This model comes with a volume pulse and 4-20 mA ow rate output.

MOSFET relay, 500 mA max, 166 pps max, 200 Hz max.

ADDITIONAL SPECIFICATIONS

Applicable Pipe Material Steel, copper, or plastic

Pipe Outside Diameter 3/4 to 7˝ (25 to 180 mm)*.

Applicable Pipe Lining None.

PipeWallThickness 0.02 to 0.39˝ (0.5 to 10 mm).

*Pipe size is dependent on pipe material and internal diameter.

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DIMENSIONS

FEMALE SMB COAXIAL

1-59/64

[48.90]

[47.00]

16.4´ [5 M]

UN-INSULATED SCREEN

4-20 mA

2 X 9 23/32 [246.92] Ø-15/16 [Ø24.00]

4-55/64

[123.46]

59/64 [23.33]

WIRING DIAGRAM

1-27/32

[46.66]

RED BLACK GREEN

WHITE

BLUE

BROWN

WHITE BLUE BROWN

GREEN

SHIELD

RED BLACK

+ OUTPUT [IF FITTED]

4-20 mA - OUTPUT [IF FITTED]

8-15/64 [209.00]

1-27/32

[46.80]

PULSE RETURN

PULSE OUTPUT

6-core main interface cable

CONNECTORS

12/24 V INPUT

12/24 V RETURN

8-5/16 [211.18]

2 X 1

[25.50]

1-27/32

1-31/64 [37.90]

2-1/32 [51.40]

1-25/64 [35.40]

HOW TO ORDER

Use the bold characters from the chart below to construct a product code.

UFM2 -1

SERIES

UFM2: Compact ultrasonic owmeter

OUTPUT TYPE

-1: Pulse and 4-20 mA outputs

-4 -NISTCAL-FU

OPTIONS

-NISTCAL-FU: NIST traceable calibration certicate

for ultrasonic owmeters. Note: Equal certs will be charged per units purchased.

PIPE SIZE

-4: 3/4 to 4˝ (25 to 115 mm)

-6: 5 to 7˝ (125 to 180 mm)

Modbus® is a registered trademark of Schneider Automation, Inc.

DWYER INSTRUMENTS, INC.

Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.