ultrasonic clamp-on

Flowmeters

We measure from the outside what is flowing in the pipe - The ultrasonic clamp-on flowmeters are cost-efficient flowmeters and suitable for retrofitting without process interruption. The volume flow of a wide variety of liquids and gases can be measured reliable. Almost independent of pressure, temperature, or viscosity.

FEATURES

How does an

ultrasonic clamp-on

flow meter work?

ATTRIBUTES

The sensors of the meter series are available for pipelines from DN10 up to DN6500 (3/8" - 256").
Clamp-on design for stationary or temporary/portable flow measurement
Temperature range for standard sensors from -30 °C to +250 °C (temporarily up to 300 °C)
Instrument version with IP 68 shear and Lamb ultrasonic sensors made of stainless steel for measuring gases
Measuring accuracy volume flow: ±1 - 3 % of measured value, ±0.5 % of measured value (with field calibration)
Two-channel equipment can save costs and time, as the flow measurement can be carried out either simultaneously on two separate pipes or on only one pipe in two-path mode.
Display volume flow/mass flow
Flow velosity range from 0.01 m/sec up to 25 m/sec
Integrated data logger for up to 100,000 measured values and software for data evaluation
Measuring functions (heat quantity/cold quantity), optional PT100 inputs for heat quantity measurement
ATEX - Version, II 2G Ex de IIB T6 Ex-certification EPS 11 ATEX 1355 X

The measuring principle is based on the ultrasonic transit time method. To measure the flow rate, two ultrasonic sensors (clamp-on sensors) are mounted on the outside of the pipe. The ultrasonic signal of the sensors pass through the pipe and the medium both with and against the flow direction. The calculated difference in the transit time of two opposing signals is directly proportional to the flow velocity and can be displayed as a flow volume with the input of additional pipe parameters.

Suitable for corrosive liquids and media with different viscosities
Cost-efficient flow measurement of almost all electrically conductive and non-conductive liquids and gases
No moving parts, therefore no wear and tear and minimal maintenance and care
Installation directly on the pipeline without process interruption
Free pipe cross section and no pressure losses
Low investment costs. The sensors are installed directly on the pipe and high cost efficiency with increasing nominal pipe diameter
Configuration according to customer requirements possible
Communication options RS 485, Modbus RTU, Profibus PA and HART* compatible output, Analogue inputs for density, temperature and pressure compensation
HART® is a registered trademark of the HART Communication Foundation