Flow Measurement & Control


Ultrasonic flowmeter for wide ranges

September 2020 Flow Measurement & Control

Instrotech has announced the release of Kobold’s new DUK flowmeters, for measuring, monitoring, metering and dosing of low viscosity fluids. Working on the principle of the difference in running times, (ultrasonic waves in a medium are influenced by the speed of flow), two sensors are mounted opposite one another in the pipeline function simultaneously as transmitter and receiver of ultrasound signals. If there is no flow, the running times of both signals are identical. If the medium is flowing, the running time of the signal against the flow is longer than that with the flow. The running time difference, determined by a microprocessor, is thus 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.

The electronics portfolio of the DUK all-rounder includes:

• Flowmeter and monitor – frequency/analog outputs along with various switching outputs.

• Compact electronics – digital display plus switching and analog output.

• Counter and dosing electronics – display of current flow rates as well as partial or total quantity; control of dosing applications with filling quantity and total quantity; additional analog and relay outputs for further signal processing.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Battery powered digital temperature gauges
March 2021, Instrotech , Temperature Measurement
hese gauges offer a wide range of industrial and analytical possibilities for applications where high accuracy and clear indication are required.

Read more...
Pressure sensors for complete systems
March 2021, Instrotech , Pressure Measurement & Control
There are often great benefits to optimising pressure sensors specifically for use and integration into higher-level complete systems.

Read more...
Exact determination of fuel consumption
April 2021, Instrotech , Flow Measurement & Control
The Kobold DOE, an oval gear flowmeter, can be used with a wide range of media and chemicals

Read more...
Inductive flowmeter with IO-Link
February 2021, Instrotech , Flow Measurement & Control
Instrotech is pleased to announce a new product development in Kobold’s magnetic inductive flowmeter range, featuring IO-Link.

Read more...
Proline t-mass F/I 300/500 from Endress+Hauser
February 2021, Endress+Hauser South Africa , Flow Measurement & Control
The reliable and versatile all-rounder for pure gases and gas mixtures features alarm functions as well as bidirectional measurement and reverse flow detection.

Read more...
Optimum flow restriction at low cost
January 2021, Instrotech , Flow Measurement & Control
Kobold REG flow restrictors are ideally suited for the simple restriction to a pre-set throughput value of water, or liquids similar to water.

Read more...
Kobold’s calorimetric flow meter
January 2021, Instrotech , Flow Measurement & Control
The electronic flow monitor model KAL-D works according to the calorimetric principle, continuously monitoring water-based liquids.

Read more...
Flowmeter for utility applications
November 2020, KROHNE , Flow Measurement & Control
As an addition to the Optiswirl family, KROHNE has introduced the Optiswirl 2100, a new vortex flowmeter aimed at basic utility applications.

Read more...
Membrane level monitor
October 2020, Instrotech , Level Measurement & Control
Kobold’s NMF membrane level monitors are an excellent choice for cost-effective level monitoring of bulk goods in storage vessels.

Read more...
Safe operation of CNG stations
October 2020, SICK Automation Southern Africa , Flow Measurement & Control
The Flowsic500 compact ultrasonic gas meter enables extremely accurate natural gas distribution measurement.

Read more...