




Dwyer Instruments UFB-122 | Complete Ultrasonic flowmeter set | Pipe size range 0.5 to 4.5" (13 to 115 mm) | 86 to 264 VAC power supply
The transit-time difference is used by the Model UFB-122 Ultrasonic Flowmeter Set to measure pipe flow rates non-invasively. The converter may be mounted on a surface or pipe with this permanent type. The lightweight, compact, and user-friendly design is meant for mechanical systems that employ perfectly homogenous liquids devoid of air pockets. With its robust IP65 certification, the Series UFB is shielded from dust and direct water contact. The Series UFB can produce pulses at rates of 4 to 20 mA.

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Accuracy | +/-0.5 to +/-2% of flow reading of flow rate > 0.03 ft/s (0.01 m/s) and pipe OD > 3.0 in (75 mm) +/-3% of flow reading for flow rate > 0.03 ft/s (0.01 m/s) and pipe OD 0.5 to 3 in (13 to 75 mm) +/-6% of flow reading for flow rate < 0.03 ft/s (0.01 m/s) |
Applicable Pipe Lining | Rubber, glass, concrete, epoxy, steel, other |
Applicable Pipe Material | Carbon steel, SS, copper, UPVC/PVDF, concrete, mild steel, glass, brass |
Approvals | CE |
Connection | Electrical: Removeable screw-in type terminal block |
Display | 240 x 64 pixel graphic display, high contrast black on white with backlight Languages: English, French, German, Swedish, Italian, Spanish, Portuguese, Russian, Norwegian, and Dutch 5" W x 1.3" H (5 x 33.02 mm) |
Enclosure Rating | IP65 when using TNC connector Transducers IP54 |
Input | TNC cable from sensors |
Manufacturer | Dwyer Instruments |
Material | Plastic ABS and aluminum |
Maximum operating temperature | Transducer: -4 to 275°F (-20 to 135°C) Controller: -4 to 122°F (-20 to 50°C) |
Mounting | Wall mounted using 3 type M4 screws |
Outputs | Analog: 1 opto-isolated output: 4 to 20 mA, 0 to 16 mA or 0 to 20 mA (selectable) Error current: 0 to 26 mA (selectable) Load resistance: 620 O max Alarm: 2 opto-isolated MOSFET NO relays, 48 V at 500 mA, maximum 200 Hz Pulsed: 1 opto-isolated MOSFET relay, 48 V at 500 mA, 1 to 250 pps Pulse width: 2 to 500 ms (selectable) |
Permissible Air Content | <3% by volume |
Pipe Lining Thickness | <1" (< 25 mm) |
Pipe Wall Thickness | 0.04 to 3" (1 to 75 mm) |
POWER CONSUMPTION | 10.5 W |
Power | 86 to 264 VAC (50 to 60 Hz) or 24 VAC/VDC (1 A max) |
Range | 0.33 to 33 ft/s (0.1 to 10 m/s) |
Repeatability | +/-0.5 % of measured value or 0.03 ft/s (0.01 m/s) |
Response Time | <500 ms |
Turbidity | <3 % by volume of particulate content |
Type | Ultrasonic flowmeter set |
Weight | >Unit not including accessories: 2.80 lb (1.26 kg) Unit including accessories: 9.92 lb (4.5 kg) |
- Makes use of the transit-time difference to monitor pipe flow rates precisely.
- Maintains the integrity of the system by enabling measurement without entering the pipe.
- Designed to be permanently installed, the converter can be put on a pipe or surface.
- Because of its lightweight and small design, it is simple to handle and install.
- Appropriate for use with liquids that are ideally homogenous, guaranteeing precise measurements.
- Designed to provide accurate readings in liquids without any air pockets.
- It is appropriate for a variety of industrial situations since it offers protection against dust and direct water contact.
- Features a pulse output capability and 4 to 20 mA output range for easy data transfer and system integration.
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