Product Description

The KOBOLD DUC technology uses the effect of acceleration and deceleration of acoustic signals traveling in a moving liquid. Two ultrasonic clamp-on transducers are mounted externally on a pipe and produce an acoustic path. The transducers send and receive signals and the subsequent transit times are measured by an electronic flow transmitter. The signal is accelerated when there is flow in the forward direction. The return signal is slowed by the flow in the opposite direction. The difference in time between the two, together with the path length in between the two transducers, is then used to determine the average flow velocity. This principle is known as the acoustic time-of-flight principle.

The DUC emits a coded signal pattern (DSP or Digital Signal Processing) into the pipe. The received signals are then compared with the sent signals and only the signal pattern, which correlates with the original one, will be used for flow calculation for cross correlation based signal evaluation. The DSP calculation of the time-of-flight is a purely digital transit time measurement.

Please note that full versions of the operation manuals are available by contacting our office or sending a request to: info@koboldusa.com

DUC - Portable or Stationary Ultrasonic Flowmeter for Liquids

Product Specifications

Measurement Principle
Time-of-flight w/DSP (Transit Time Principle)
Flow Velocity Range
0...98 ft/sec
Pipe Size Range
3/8"...20 Feet
Temperature Range
-40...300 °F
Accuracy
up to 1% of Reading

Product Features

Easy-to-read User Interface with LED Backlight, QVGA Display
Quick-Mount-System with Space Bar for Ultrasonic Transducers, 0.5, 1 and 2 MHz
DSP Technology Reduces Signal Echoes and Dispersion Effects, Having a Positive Effect on the Signal to Noise Ratio
Portable and Stationary Versions Available
Applications within Power Plants, Water/Wastewater and Chemical Processing Industries

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