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iSOLV TUF339 Portable Ultrasonic Clamp-On Flowmeter

iSOLV TUF339 is a portable transit time ultrasonic flowmeter designed to work with clamp-on transducers, to provide accurate measurement of liquid flowing within a closed pipe, without the need for any mechanical parts to be inserted through the pipe wall or to protrude into the flow system. It takes just a few minutes to install and there is no need to shut down flow or drain the system!

The measuring principle of ultrasonic flow meter is based on ultrasound transmission through a liquid. Transit time measuring technique utilizes two transducers, which function as both ultrasonic transmitters and receivers. The ultrasound waves traveling in the direction of the flow of the liquid require less time than when traveling in the opposite direction, therefore the difference in time taken by the ultrasonic waves to travel over the same distance but in opposite directions is an indication of the flow rate of the liquid.

Application reference:


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Features

• TUF339 instrument with backlit graphic display.
• Power supply - with UK, US, European adapters 110/240VAC.
• Transducer cables (x2) 2 metres long.
• Transducer set 1 set.
• Set of guide rails for use with ‘A’ or ‘B’ transducers.
• Ruled separation bar (2-piece).
• 4-20mA/Pulse output cable.
• USB cable and RS232-C cable.
• 2 lengths of chain each at 3.3 metres long.
• Test block.
• Ultrasonic couplant and syringe applicator.
• Manual (English & Indonesia version).

Application

• iSOLV Ultrasonic Clamp On Flow meter TUF339 can measure almost all light homogeneous fluids (<5% solids).
 The basic requirement is that the fluid can conduct ultrasound and have an acceptable axis-symmetrical flow.
• Non invasive measurement, no interruption to process and no risk of contamination.
• Advance datalogger function which can download easily to PC using RS232/USB interface.
• With capabilities of measuring bi-directional flow and pipe diameter range from 13 to 2000mm.
• iSOLV TUF339 has many applications across many industries environment.
 They can be used for application like emergency stand-by monitoring, leak detection, survey work, flowmeter verification and many more.
Specifications

Transducer
Measuring Range :

 Two transducer for different pipe diameter.
 ‘A’ transducers - 13mm - 115mm - Optional.
 ‘B’ transducers – 50mm – 2000mm - Standard.

Flow Accuracy :
 • Pipe OD >75mm - ±0.5% to ±1% of flow reading for flow rate >0.2m/s
 • Pipe OD in range 13mm - 75mm - ±1% of flow reading for flow rate >0.2m/s and ±3% of flow reading for flow rate < 0.2m/s
 • Flow velocity corrected for Reynolds number over entire velocity range

Repeatability :
 ±0.5% of measured value or ±0.02m/s whichever is the greater

Selectable Flow Units :
 • litres, gal, USgals, Barrel, m³
 • Total volume – 12 Digits - forward and reverse

Flow Velocity Range :
 0.1 to 20m/sec (bi directional)

Transducer Temperature Range :
 -20°C to +135°C

Pipe material
Constructed of any sonic conducting medium such as :

 • Carbon Steel
 • Stainless Steel
 • Copper
 • UPVC/PVDF
 • Concrete
 • Galvanised Steel
 • Mild Steel
 • Glass
 • Brass
Permitted pipe linings include :
 • Rubber
 • Glass
 • Concrete
 • Epoxy
 • Steel

Electronic
Enclosure :

 • Protection Class: IP67
 • Material: Flame retardant injection moulded ABS
 • Dimensions: 264mm x 168mm x 50mm
 • Weight : 1.1 kg (including battery)
 • Number of Keys: 16
 • Display: 240 x 64 pixel graphic display, high contrast black-on-white, with backlight
 • Operating temperature: -20°C to +50°C
 • Storage temperature: -25°C to +65°C
 • Operating humidity: 90% RH MAX at +50°C

Output
Analogue Output :

 • Range: 4–20mA, 0–20mA, 0–16mA
 • Resolution: 0.1% of full scale
 • Alarm current: Adjustable between 0–26mA
 • Isolation: 1500V Opto-isolated
 • Maximum load: 620 Ohms

Pulse Output :
 • Output type: One open collector opto-isolated digital output
 • Pulse repetition: Up to 500 pulses/sec (depending on pulse width)
 • Pulse width: 500ms for 1pulse/s5ms for 100 pulses/s
 • Max current: 150mA

Datalogger :
 • Logged data: Time-stamped flow rate. Units may be changed at time of download by selecting the corresponding unit on the keypad (e.g l, gals, USgals, m³).
 • Number of data points: 98,000 (98k) logged events distributed across up to 20 sites. All free memory is allocated by demand.
 • Programmable logging interval: 5s to 1hr. The screen updates to show the end time of memory remaining as sample units are selected.
 • Manual/Auto control: Logging can be started and stopped manually or set for automatic (timer) operation.
 • Memory overflow: User selectable to either overwrite old data or stop logging.
 • Download log: Logged data can be downloaded to PC using RS232/USB interface. Data can be downloaded directly to facilitate ‘live’ logging, or recalled from memory to
  download at any time.

RS232/USB Interface:
 • TUF339 has a single RS232/USB output facility that can be used to download logged data to a PC or printer.
 • 2m interface cables are supplied with the equipment.
 • RS232 cable is terminated with a standard 9-pin D-type connectorsuitable for connecting to the serial port of a PC/printer.
 • USB cable is terminated with a standard USB connector. In eachcase these cables connect to an 8 pin LEMO connector on the top of the TUF339

Supply Voltage:
 • Input voltage range: 9–24Vdc
 • Power consumption: 10.5W
 • Battery charger: Manufacturer: Model ECO-181WP12
 • Input voltage range: 90–264Vac

Battery Pack:
 • Technology: 5-cell NiMH
 • Capacity: 3.8AHr
 • Operating time: Typically 20 hours continuous with backlight and 4-20mA output OFF
 • Recharge time: 6.5 Hours
 • Service life: >500 charge/discharge cycles
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