The KOBOLD DUC uses the effect of acceleration and deceleration of acoustic signals traveling in a moving liquid. Two ultrasonic clamp-on transducers are externally mounted on a pipe and produce an acoustic path. The transducers send and receive acoustic signals and their transit times are measured by an electronic flow transmitter. The signal is accelerated by the flow in the forward direction. The return signal is decelerated by the flow in the opposite direction. The difference in time between the two, together with the path length L, can be 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 will be compared with the sent signals and only the signal pattern, which correlates with the original one, will be used for flow calculation (cross correlation based signal evaluation). The DSP calculation of the time-of-flight is a pure 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
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 |
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 |
For decades, KOBOLD has been a world leader in process measurement and control solutions. We offer one of the industry’s broadest lines of sensors, switches and transmitters to measure and control flow, pressure, level and temperature. KOBOLD sensors and controls include:
INDUSTRIAL MEASURING AND CONTROL EQUIPMENT
KOBOLD and its affiliate companies have been and continue to be leaders in the field of industrial measuring and control equipment. Some of our products have set the bar in the industry, helping to shape the field of industrial instrumentation into what it is today. Always on the leading edge, we offer a comprehensive portfolio of reliable instrumentation that is found in a vast array of applications all over the world. Our technologies offer a solution oriented way to control the most diverse variables.
OUR CUSTOMERS ARE OUR PRIORITY
Our years of experience and our excellence in customer service and technical support have built our industry reputation as the partner of choice. We believe in serving and supporting our customers and our products and have made customer service a priority. Our expert engineers are always available during business hours to help you choose your KOBOLD solution, and their decades of experience are an asset that we are proud of. We are here to help you develop and select the best solution for your system, and eliminate the challenges that can come in selecting the most optimal and economical equipment for your application.
MEASURING, CONTROLLING AND AUTOMATING WITH KOBOLD
Our technical solutions can be easily integrated into a wide variety of systems in many industrial sectors. Thanks to internationally recognized BUS interfaces, most of our models can be easily adapted into already established automated processes. Our innovative instrumentation delivers that highest standards of service and can handle complex automated processes. Because our models are both sophisticated and easy to use, they are very popular among end users.
INSTRUMENTATION ABOVE AND BEYOND THE STANDARD
While KOBOLD offers a wide variety of instrumentation that meets most standard application needs, we are also able to meet extraordinary application needs that can be hard to find solutions for. For example, we have built the largest Coriolis meter on record. We also offer other instrumentation that can handle excessive amounts of flow, pressure, and temperature. Our familiarity with exotic materials allows us to offer solutions for variables that are frequently hard to accommodate. Because we are the manufacturer, we also have the flexibility of being able to provide customized solutions in certain circumstances, based on the exact application needs.