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Doppler-ultralydsflowmeter

FD-400 Series

Doppler-ultralydsflowmeter | FD-400 Series

Doppler-ultralydsflowmeter

DKK14.760,00 FD-400

1 year warranty CE
  • Ikke-intrusiv transducer til påspænding til de fleste rør fra 6 mm til 3 m (1/4 til 120")
  • Probetransducer til indføring fås også
  • Stort måleområde på 0,05 til 9 mps ±2 % nøjagtighed i kalibreret område
  • Konfiguration og total lagring i ikke-flygtig flash-ROM
  • IP66-indkapsling (NEMA 4X)
  • Mulighed for op til 4 meter i et enkelt rørsystem
  • Sporpart kalibreringscertifikat
Ultralyd til doppler-/transittid - Vis relaterede produkter

Beskrivelse

The FD-400 Series ultrasonic doppler flowmeters measure the flow of liquids that contain sound reflectors, suspended solids, or gas bubbles larger than 100 microns. These sophisticated instruments automatically adjust filtering and gain settings to produce reliable readings in a wide range of liquid and reflector conditions.

The FD-400 flowmeter transmitts ultrasonic sound through the pipe wall or from the probe tip into the flowing liquid by using piezoelectric crystals contained in the transducer and probe tip. The sound is then reflected by sonic reflectors suspended in the liquid and recorded by the receiver. If the sonic reflectors are moving within the sound transmission path, sound waves will be reflected at a frequency shifted (Doppler frequency) from the transmitted frequency. The difference between the 2 frequencies is directly proportional to the speed of the sonic reflectors, resulting in a liquid flow rate that is converted to various user-defined units.

Configuration of the FD-400 is accomplished via the front-panel keypad. A 2-line backlit LCD displays rate and total in user-selected units. Power supply options include AC and DC. Optional outputs include 4 to 20 mA, relays, and rate pulse.

Two transducer styles are available. The FD-400C clamp-on, non-intrusive transducer is recommended for most metal or plastic pipes. The FD-400C has an IP68 (NEMA 6P) rating and is available in a high-temperature version, “HT”. The user can place these clamp-on transducers up to 300 metres from the display enclosure. The FD-400I insertion probe transducer should be used on piping systems that do not permit ultrasonic penetration. The FD-400I inserts into the pipe wall and comes into direct contact with the flowing liquid.

Specifications

General

Measuring Principle: Doppler ultrasonic
Flow Velocity Range: 0.05 to 9 metres per second (0.15 to 30 fps)
Accuracy: ±2% FS over calibrated span
Liquid Types: Liquids containing 100 ppm of useful sonic-suspended reflectors greater than 100 microns

Monitor
Enclosure: IP66 (NEMA 4X), polycarbonate, stainless steel, brass, plated-steel mounting brackets
Dimensions: 178 H x 146 W x 99 mm D
Power Supply: 115/230 Vac, 50/60 Hz ±15% @ 5 VA max; 12 to 28 Vdc @ 2.5 VA max
Display: 2-line x 8-character LCD; LED backlighting; top row, 7-segment 18 mm; bottom row, 14-segment 9 mm; 8-digit rate, 8-digit total (resettable)
Units: User configured—feet, gallons, ft3, mil-gal, metres, litres, mil ft3, m3, mil-litres, acre-feet, oil barrels (42 US gallons), liquor barrels (32.5 US gallons), lb, kg
Rate: Interval—second, minute, hour, day
Totaliser exponent: E-2 to E+6
Response Time: User selectable, 1 to 60 seconds
Outputs: 4 to 20 mA, 800 Ω max; internal or external power supply; 12-bit resolution; optically isolated
Dual Relay: Independently configured; form “C”, 200 Vac @ 0.5 A resistive; rate alarm, totalizer pulse, error
Rate Pulse: 2 output types— 500 mVac or open collector; 2500 Hz max; 12-bit resolution; 500 mV AC into 2 kΩ min; open collector 1 A at 100 V max
Multiple Meters: Synchronisation provision included—used for multiple meter/single pipe system; up to 4 meters may be interconnected up to 30 metres apart
Keypad: 4 pushbutton keys
Operating Temperature: -40 to +85°C

Transducers
Type: Compression-mode ultrasonic, 625 kHz
Housing Material:
    Standard Clamp-On: IP68 (NEMA 6P), -40 to 100°C (-40 to 210°F), CPVC, Ultem®, nylon, PVC (cable jacket), aluminium (small pipe)
    High-Temp Clamp-On: IP65 (NEMA 4), -40 to 200°C (-40 to 400°F), Vespel®, anodised aluminium, nickel-plated brass, PFA (cable jacket)
    Doppler Probe: IP67 (NEMA 6) -40 to 100°C (-40 to 210°F); 48 bar (700 psi) max, 316 SS, Ultem®, FKM, nylon, PVC (cable jacket)
    Optional Flexible Armoured Conduit: Zinc-plated steel, PVC
Cable Length:
    Standard Lengths: 6 metres

Til bestilling(Angiv modelnummer)

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Acoustic Couplant for Sensor Mounting
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All amounts shown in DKK
Noter: Comes complete with wall mount bracket, NIST traceable calibration certificate, and operator's manual.

Rate indicator/totaliser models are also available with 24 Vdc or 230 Vac power: For 24 Vdc power, add suffix "-24VDC" to model number, no additional cost.
For 230 Vac power, add suffix "-230VAC" to model number, no additional cost.

FD-400C-STD sensors come with four mounting straps.