The FDT-80 Series has been discontinued. Please see the FDH-1 Series as a possible alternative or contact our Flow Engineering Department.
The FDT-80 Series of portable transit time flowmeters
feature the world’s most advanced non-invasive flow
measurement technology, providing a measuring
system with unsurpassed accuracy, versatility, ease
of installation and dependability. Although designed
primarily for cleaner liquids, the flowmeter can also
reliably measure liquids containing moderate amounts
of suspended solids or aeration.
FDT-80 is designed for long or short term flow
measurement surveys on full-pipe liquid systems and
is ideal for verifying calibration of permanently
mounted flowmeters of all types. The flowmeter
features a tactile keypad, 24-hour battery
(rechargeable), and a 128 x 64 pixel,
back-lit graphics display - all
integrated into a rugged,
watertight enclosure. The FDT-80
systems utilize proprietary dual timebase
time expansion algorithm, advanced
DSP and digital cross-correlation. The cost effective
and versatile FDT-80 flowmeter comes complete with
all accessories necessary for measuring piping
systems from 50 to 2540 mm (2 to 100").
FDT-80 Series has a flow measuring range that
exceeds 4000:1. This feature allows the instrument to
measure normal process flow rates as well as flows
resulting from leaks in piping and valves.
User configurable rate and totalizer units include: feet,
gallons, ft3, million-gal, barrels, acre-feet, lbs, meters,
liters, m3, million-liters and kg. Non-invasive clamp-on
transducers are simple and cost efficient to install.
Since the transducers do not contact the liquid, fouling
and maintenance are eliminated.
Automatic Reynolds Number compensation
assures accurate measurements through the laminar,
transition and turbulent system flow regions. An
integral 24 hour rechargeable battery allows extended
operation when AC power is not available. Both AC
and cigarette socket style power adaptors (battery
chargers) are included. Compartmentalized and
padded carrying case keeps the FDT-80 meter and all
of its accessories organized and protected.
Power Requirements: Internal 12 V lead-acid gel cell battery provides 24 hrs of continuous operation @ 20°C (68°F) Charging: Wall mount power converter, 115 or 230 Vac 50/60 Hz ±15% @ 5 VA max; 12 to15 Vdc @ 2.5 VA max Velocity: -12 to +12 MPS (-40 to +40 FPS) Outputs: All output modules are optically isolated from earth and system grounds. A maximum of two modules may be installed Analog Output: 4 to 20 mA, 800Ω max; 12-bit resolution; passive or active Other Options: Pulse output MOSFET, dual form C relays, heat flow and high temperature, and small pipe sensors (consult Engineering for details) Display: 128 x 64 pixel graphics LCD, LED back lit. Two user selectable font sizes: 8.9 or 5.0 mm (0.35 or 0.2") 8-digit rate, 8-digit totalizer (resettable) Units: Feet, gallons, ft3, mil-gal, barrels, acre-feet, lbs., meters, liters, m3, mil-liters, kg (with Heatflow option: BTUs, calories, watts tons) [rate time: sec, min, hr, day]; Totalizer (NET, FWD, REV or BATCH): gallons, ft3, barrels, acre-feet, lbs., liters, m3, kg (with Heatflow option: BTUs, calories, watts tons) (user configured) Ambient Conditions: -40 to 85°C (-40 to 185°F), 0 to 95% relative humidity, non-condensing Enclosure: NEMA 4X (IP-66) while open, NEMA 6 (IP68) while closed, ABS with SS hardware Electronic Enclosure: 14.8 lbs (6.7 kg), 356 W x 154 H x 268 mm D (14 x 6.06 x 10.56") Accuracy Flow Rate: ±0.5% of reading at rates > 1 FPS Sensitivity Flow: 0.0003 MPS (0.001 FPS) Repeatability: ±0.01% of reading Response Time Flow: 0.3 to 30 seconds, user configured, to 100% of value, step change in flow. Security keypad lockout, 4-digit user selected access code Approvals: Ordinary area Cable: 6.1 m (20') Pipe Sizes: 50 to 2540 mm (2 to 100") Pipe Temperature: -40 to 121°C (-40 to 250°F); NEMA 6 (IP68) housing Material Standard Sensor: CPVC, Ultem® and Nylon
注: Comes complete with NIST certificate, AC and automobile power adaptors, carrying case, acoustic couplant, standard sensors, straps, cables, mounting track, and operator’s manual.
High Temp and Small Pipe Transducers are available as an accessory. Please consult Flow Engineering for details.