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DUE Ultrasonic Flowmeter
Brand: KOBOLD Instruments, IncUltrasonic flowmeters of the DUE-1 (single-beam) and DUE-2 (dual-beam) type series are intended for flow-rate measurements of conductive, non-conductive and aggressive liquids in a pipe completely filled with the flowing fluid.
Ultrasonic flowmeters operate on the principle of measuring the difference in transit times of ultrasonic waves travelling in and against the fluid flow direction. The meter consists of a flow sensor and associated electronic unit.
Ultrasonic flowmeters offer excellent user value in their high measurement accuracy over a wide range of measured values, long-term stability, negligible hydraulic losses and the capability of measuring the flow-rate of virtually any liquid medium.
The evaluation unit in separate plastic housing, supplies power to the ultrasonic probes and gives the flow rate in form of pulses (option 0/4-20 mA, RS485). Factory language setting English, switchable to German/French/Spanish. 3-point factory calibration is included as standard.
Specifications
Brand
Accuracy
- ± 0.5 % of Reading
- ± 1 %
Ambient Temperature Range
- 5° to 55° C (41° to 131° F)
Applications
- Air Conditioning Systems
- Chemical & Petrochemical
- Cooling Water System
- Heating Equipment
- Power Plants
- Waste Management
Approvals & Certifications
- EN 1092-1
Cable Length
- 16.4 to 328.1 ft (5 to 100 metres)
Dimensions
- 9.1" x 8.5" x 3.35" {230 x 217 x 85 mm (L x H x W)}
Display
- 2 x 16-Digit Alphanumerics
- LCD Display
Electrical Connectors
- 1 x PG 7
- 4 x PG 9
Electrical Rating
- 0.1 A at 24 Vac
Environmental Protection
- IP65
- IP67
- IP68
Flange Size - 1-1/2” (DN 40)
- 1-1/2" (DN 40) - PN 16
- 1-1/2" (DN 40) - PN 40
Flange Size - 1-1/4” (DN 32)
- 1-1/4" (DN 32) - PN 16
- 1-1/4" (DN 32) - PN 40
Flange Size - 10” (DN 250)
- 10" (DN 250) - PN 16
- 10" (DN 250) - PN 40
Flange Size - 12” (DN 300)
- 12" (DN 300) - PN 16
- 12" (DN 300) - PN 40
Flange Size - 2-1/2” (DN 65)
- 2-1/2" (DN 65) - PN 16
- 2-1/2" (DN 65) - PN 40
Flange Size - 2” (DN 50)
- 2" (DN 50) - PN 16
- 2" (DN 50) - PN 40
Flange Size - 3” (DN 80)
- 3" (DN 80) - PN 16
- 3" (DN 80) - PN 40
Flange Size - 4” (DN 100)
- 4" (DN 100) - PN 16
- 4" (DN 100) - PN 40
Flange Size - 5” (DN 125)
- 5" (DN 125) - PN 16
- 5" (DN 125) - PN 40
Flange Size - 6” (DN 150)
- 6" (DN 150) - PN 16
- 6" (DN 150) - PN 40
Flange Size - 8” (DN 200)
- 8" (DN 200) - PN 16
- 8" (DN 200) - PN 40
Flow Rate
- 1.5-20 m³/hour to 127-2000 m³/hour to Water
Frequency
- 0.1 to 1,000 Hz
Humidity
- 80 % RH, max.
Interface Connection
- RS-485
Maximum System Pressure
- psi: 580.2 (kPa: 4,000, bar: 40)
Output
- 0-20 mA
- 4-20 mA
- Galvanically Isolated
Power Requirement
- 100-250 V, 50/60 Hz
- 3 V Lithium Metal Battery (Lifetime for 5-Years)
- 6 VA
Process Temperature
- -20° to 180° C (-4° to 356° F)
Storage Temperature
- -10° to 70° C (14° to 158° F)
Temperature Range
- 150° C (302° F) - Max.