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DUK Ultrasonic Flowmeter
Brand: KOBOLD Instruments, Inc
The new KOBOLD type DUK Flow Meters are used for the measurement, monitoring, metering and dosing of low viscosity fluids. The devices work on the principle of the difference in running times.
This is based on the fact that ultrasonic waves in a medium are influenced by the speed of flow. Two sensors mounted opposite one another in the pipeline function simultaneously as transmitter and receiver of ultrasound signals.
If there is no flow, then the running times of both signals are identical. If the medium is flowing, then the running time of the signal against the flow is longer than that with the flow.
The running time difference, which is determined by a microprocessor, is proportional to the speed of flow. The devices can be equipped with a switching output, a frequency output or an Analog output.
In addition, a compact circuit can be selected that features a digital display, a switching output and an Analog output.
The device series is rounded off by an optionally available dosing and meter circuit. The meter circuit indicates the momentary flow rate in the first line of the display and the partial or total quantity in the second line.
A dosing circuit controls simple filling tasks and similarly measures flow rates, total amounts and filling amounts. The Analog output and two relay outputs can be used for further processing of the signals.
Specifications
Brand
Accuracy
- ± 0.1 % of Full Scale - High Repeat Accuracy
- 0.7 % of Full Scale
- 0.7 % of Reading
Ambient Temperature Range
- -20° to 70° C (-4° to 158° F)
Applications
- Automotive
- Cooling Circuits
- Hot Water
- Machine Building
- Robotics
BSP Connection
- G 1" Female
- G 1/2" Female
- G 1-1/2" Female
- G 2" Female
- G 3" Female
- G 3/4" Female
Consumption
- 100 mA Approximately - Compact Electronics
- 170 mA Approximately - Dosing & Counter Electronics
- 25 mA
- 30 mA
- Maximum
Display
- 2 x 8-Digit LCD Display - Counter Electronics
- 3-Digit LED Display - Compact Electronics
- 5-Digit Digital Display - ADI Electronics
- Bar Graph - ADI Electronics
- LED Display
Electrical Connectors
- Cable
- Cable Gland
- DIN 43650
- M12 Plug, 5-Pin
- Plug Connector M12 x 1
- Pluggable Terminal Block
Electrical Contacts
- N/O or N/O Programmable - Compact Electronics
Enclosure, Body Material
- 316 Stainless Steel
- Brass
Environmental Protection
- IP65
Flow Rate
- 0.08-20 to 2.5-630 L/minute
Frequency
- 50 to 1,000 Hz
- 500 Hz
Function
- Flow Monitor
- Language
- Minimum/Max.imum
- Monitoring for Part
- Reset
- Total Quantity
Load Limit
- 500 ohms, Max.
Maximum System Pressure
- psi: 232.1 (kPa: 1,600, bar: 16)
Media
- Liquids With, Max.
Mounting Position
- In All Directions, Flow in Direction of the Arrow (Horizontal: Electronic on Top or Below)
NPT Connection
- 1" NPT Female
- 1/2" NPT Female
- 1-1/2" NPT Female
- 2" NPT Female
- 3" NPT Female
- 3/4" NPT Female
Output
- 0-10 Vdc - Analog (ADI Electronics)
- 1 A at 30 Vdc - Relay SPDT (Switching Output)
- 2 A at 30 Vac/Vdc, Max.
- 200 mA - Max.
- 24 Vdc Active - Switching Output
- 4-20 mA, 3-Wire
- 60 VA at 30 Vac/Vdc, Max.
- Open Collector - Impulse Output
- PNP - Impulse Output
Output Format
- PNP or NPN Semiconductor - Compact Electronics
Output Function
- Normally Closed
- Normally Open
Power Requirement
- 100-240 Vac ± 10 %
- 10-40 Vdc
- 18-30 Vac
- 24 Vdc ± 20 %
Pressure Range
- psi: 0 to 232.1 (kPa: 0 to 1,600, bar: 0 to 16)
Process Temperature
- -20° to 120° C (-4° to 248° F)
Programming
- 2 Buttons - Compact Electronics
- 4 Button - Counter, Dosing & ADI Electronics
Relay Output
- 2 Changeover Contacts
- 2 Relays
Response Time
- 0.5 to 1 second Approximately at Flow Change > 10 % of Full Scale
Seat / Seal Material
- FPM - Wetted Materials
- NBR - Wetted Materials
Sensor / Probe Material
- PEEK - Wetted Materials
Sensor / Probe Style
- Ultrasonic
Span - Minimum
- 250
Switch Type
- SPDT