DWYER PUF portable ultrasonic flowmeter kit

Description of DWYER PUF

PRINCIPLES OF OPERATION
Two sensors are placed on the exterior of the pipe, and each transmits an ultrasonic pulse through the pipe and fluid to the other. The velocity of the liquid flowing through the pipes causes the pulse to accelerate or decelerate. The difference in the transit times of the two pulses is used to calculate the flow rate. The use of transit time allows the flowmeter to be unaffected by pressure or temperature changes.

Calibration Option available under Accessories. 

PRODUCT APPLICATIONS

• Treated Water
• River Water
• Sea Water
• Potable Water
• Demineralized Water
• Glycol/water mix
• Hydraulic System
• Diesel Oil

Technical specifications of DWYER PUF

• Service: Homogeneous liquids that do not contain air bubbles capable of ultrasonic wave propagation.
• Inputs: Lemo connector cable from sensors.
• Range: 0.33 to 65.62 ft/s (0.1 to 20 m/s).
• 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; 5.2″ W x 1.5″ H (132.1 x 38.1 mm).
• Accuracy: ± 0.5 to 2% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and Pipe ID > 3 in (75 mm). ± 3% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and Pipe ID in range 0.5 to 3 in (13 to 75 mm). ± 6% of flow reading for flow rate < 0.66 ft/s (0.2 m/s).
• Power Requirements: 9 to 24 VDC; (1) 5-Cell NiMH battery, internal, factory replaceable (continuous operation time: 20 hours with back light and output off); (recharging time: 6.5 hours, power adapter used).
• Power Consumption: 10.5 W.
• Power Adapter: 110/240 VAC adapter; UK,US, European adapters included.
• Temperature Limits: -4 to 275°F (-20 to 135°C).
• 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; Pulse: 1 opto-isolated MOSFET relay, 150 mA max, 500 pps max, 200 Hz max.
• Serial Communications: USB; RS-232.
• Enclosure Rating: Transducers: IP51; Carrying Case: IP67; Converter: IP54.
• Materials: Flame retardant injection molded ABS plastic.
• Repeatability: ±0.5 % of measured value or ±0.066 ft/s (0.02 m/s).
• Electrical Connections: Multi-pin Lemo plugs.
• Turbidity: <3% by volume of particulate content.
• Permissible Air Content: <3% by volume.
• Response Time: <500 ms.
• Weight: Unit without accessories: 2.30 lb (1.06 kg); Unit with accessories in carrying case: 14.40 lb (6.52 kg).
• Compliance: CE.

ADDITIONAL SPECIFICATIONS

• Applicable Pipe Material: Carbon steel, SS, copper, UPVC/PVDF, concrete, galvanized steel, mild steel, glass, brass.
• Applicable Pipe Lining: Rubber, glass, concrete, epoxy, steel, other*.
• Pipe Wall Thickness: 0.04 to 3″ (1 to 75 mm).
• Pipe Lining Thickness: < 1″ (< 25 mm).

How to buy DWYER PUF

Accessories for DWYER PUF