OMEGA – FDT-40E Series

///OMEGA – FDT-40E Series
  • omega-fdt-40e-series

OMEGA – FDT-40E Series

  • Bi-Directional Flow/Energy Measurement
  • Rugged, Aluminum Enclosure
  • Rate and Total Backlit Display
  • 4 to 20 mA and Dual Alarm Outputs
  • USB Programming Port
  • RS485 MODBUS® Network Connection
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Product Description

FDT-40E Series ultrasonic flow and energy meters clamp on to the outside of pipes and do not come in contact with the internal liquid. The technology has inherent advantages over alternate devices including: low-cost installation, no pressure head loss, no moving parts to maintain or replace, no fluid compatibility issue, and a large, bi-directional measuring range that ensures reliable readings even at very low and high flow rates. FDT-40E Series is available in a variety of configurations that permit the user to select a meter with features suitable to meet particular application requirements.

Specifications
System
Liquid Types: Most clean liquids or liquids containing small amounts of suspended solids or gas bubbles
Velocity Range: Bi-directional to greater than 40 FPS (12 MPS)
Flow Accuracy:
Larger Than 50 mm (2″): ±1% of reading or ±0.01 FPS (0.003 MPS), whichever is greater
25 to 50 mm (1 to 2″): ±1% of reading or ±0.04 FPS (0.012 MPS), whichever is greater
19 mm (¾”) and Smaller: ±1% of full scale
Temperature Accuracy:
Absolute: 0.25°C (0.45°F)
Difference: 0.1°C (0.18°F)
Energy Temperature Range: 0 to 100°C (32 to 212°F)
Sensitivity Flow: 0.001 FPS (0.0003 MPS)
Temperature: 0.025°C (0.05°F)
Repeatability: 0.5% of reading Transmitter
Power Requirements (AC): 95 to 264 Vac 47 to 63 Hz @ 17 VA maximum standard, 20 to 28 Vac 47 to 63 Hz @ 0.35 A maximum (“-24VAC” models), 10 to 28 Vdc @ 5 W maximum (“-VDC” models)
Protection: Auto resettable fuse, reverse polarity and transient suppression
Display: Two line LCD, LED backlit; top row 18 mm (0.7″) height, 7-segment; bottom row 9 mm (0.35″) height, 14-segment
Icons: RUN, PROGRAM, RELAY1, RELAY2
Flow Rate Indication: 8-digit positive, 7-digit negative maximum; auto decimal, lead zero blanking
Flow Totalizer: 8-digit positive, 7-digit negative maximum (re-set via keypad press, software, network command or momentary contact closure
Enclosure NEMA 4 (IP65) Construction: Powder-coated aluminum, polycarbonate, stainless steel, polyurethane, nickel-plated steel mounting brackets
Size (Electronic Enclosure Only): 152 W x 112 H x 56 mm D (6.0 x 4.4 x 2.2″)
Conduit Holes: (2) ½ NPT female (1) ¾ NPT female
Temperature: -40 to 85°C (-40 to 185°F)
RTD: Platinum 385, 1000O, 3-wire
Configuration: Via optional keypad or PC running software (Note: not all configuration parameters are available from the keypad – i.e. flow and temperature calibration and advanced filter settings)
Engineering Units Flow Meter: Feet, gallons, cubic feet, million gallons, barrels (liquid and oil), acre-feet, lbs, meters, cubic meters, liters, million liters, kg
Engineering Units Energy Meter: BTU, MBTU, MMBTU, Tons
Inputs/Outputs USB 2.0: For connection of a PC running configuration utility
RS485: MODBUS RTU command set
4 to 20 mA: 12-bit, internal power, can span negative to positive flow/energy rates
Transducers
Construction
Standard (FDT-41 thru 46): NEMA 6 (IP67), PVC, PEI, Nylon cord grip, PVC cable jacket
Temperature: -40 to 60°C (-40 to 140°F)
FDT-41 thru 46 with “-HT” option, FDT-47 and FDT-48: NEMA 6 (IP67), CPVC, PEI, Nylon cord grip, PVC cable jacket
Temperature: -40 to 90°C (-40 to 194°F)
FDT-47 “-HT”: NEMA 6 (IP67), PTFE, polyimide, Nickel-plated brass cord grip, PFA cable jacket
Temperature: -40 to 176°C (-40 to 350°F)
Frequency:
FDT-41 thru 46: 2 MHz
FDT-47: 1 MHz
FDT-48: 500 KHz
Cables: RG59 coaxial, 75 Ω or twin axial, 78 Ω (optional armored conduit)
Cable Length: Standard 6 m (20′) [300 m (990′) maximum in 3 m (10′) increments; submersible conduit limited to 30 m (100′) for transducers]
Software Utilities Utilized to configure, calibrate and troubleshoot flowmeters. Connection via USB A/B cable; software is compatible with Windows 2000, Windows XP, Windows Vista® and Windows® 7
RS485 Network All FDT-40 meters come equipped with RS485 drivers and utilize a MODBUS RTU command set (data can be returned in single-precision, doubleprecision, integer or floating point values). Up to 126 units products can be run on a single daisy-chain network and be individually queried for flow rate, positive flow accumulator, negative flow accumulator and signal strength. Flow accumulators can be cleared at discrete addresses or globally. The RS485 network is also compatible with direct to Excel, application.

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