PUB-20 | Portable ultrasonic flowmeter converter Type B | 2" to 40" (50.7 to 1016 mm) pipe diameter range. | Dwyer
Portable ultrasonic flowmeter converter Type B, 2" to 40" (50.7 to 1016 mm) pipe diameter range.
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Dwyer PUB-20 Documents
Overview
Details for PUB-20
Portable ultrasonic flowmeter converter Type B | 2" to 40" (50.7 to 1016 mm) pipe diameter range.
Series PUB Portable Ultrasonic Flowmeter Kit
The Series PUB & PUF Portable Ultrasonic Flowmeter Kits utilize the transit-timedifference for measuring flow rates in pipes non-invasively. They are compact andlightweight instruments incorporating the latest electronics and signal processingtechnologies, realizing high performance and easy operation. These devices are perfect foron-the-go flow monitoring, capable of 20 hours continuous operation with built-in,rechargeable battery. The PUB comes with a rugged carrying case with molded foaminserts while the PUF boasts an IP67 rated case to hold and protect all equipmentconveniently. Their screens offer easy to read text with convenient backlight for visualcomfort. The efficient layout of the function keys adds to these units’ easy to useprogramming. These series offer analog as well as a pulsed outputs.
PRINCIPLES OF OPERATION
Two sensors are placed on the exterior of the pipe, and each transmits an ultrasonicpulse through the pipe and fluid to the other. The velocity of the liquid flowing throughthe pipes causes the pulse to accelerate or decelerate. The difference in the transittimes of the two pulses is used to calculate the flow rate. The use of transit timeallows the flowmeter to be unaffected by pressure or temperature changes.
Calibration Option available under Accessories.
For the data logging version see Series PUF.
Product Applications
- Treated Water
- River Water
- Potable Water
- Demineralized Water
- Glycol/water mix
- Hydraulic System
- Diesel Oil
- Sea Water
- Kit Includes:
- Converter
- Set of Transducers
- Transducer Holders
- Set Transducer Cables (6.56' (2 m))
- 4 to 20 mA Communication Cables
- 12 VDC Power Supply
- Ultrasonic Coupling Grease
- Set of Chains
- Ruled Guide Rail
- Test Block
- Carrying Case
Specifications
- Series
- PUB Portable Ultrasonic Flowmeter Kit
- Category/Type
- Flow
- Type
- Flow Transmitters
- Series
- PUB Portable Ultrasonic Flowmeter Kit
- Service
- Homogeneous liquids that do not contain air bubbles capable of ultrasonicwave 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.
- Accuracy
- ±0.5 to 2% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and pipe ID> 2.95" (75 mm);±3% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and pipe ID in range0.512 to 2.95" (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; factoryreplaceable (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 Ω max; Pulse: 1 opto-isolated MOSFET relay; 150 mA max; 500 pps max; 200 Hz max.
- Enclosure Rating
- Converter: IP54; Transducers: IP51.
- 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: 2.3 lb (1.06 kg);Unit with accessories in carrying case: 13.23 lb (6.0 kg).
- Agency Approvals
- 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).
- *Selectable option for special material with known propagation rate of the liningmaterial.
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