• Phone: +31 (0)165 855 655
  • Email Address: info@u-f-m.nl
Language: U-F-M Nederland U-F-M English U-F-M Germany

ATEX clamp-on ultrasonic flow meter

KATflow 170

  • Pipe diameters: 10 mm to over 3,000 mm (3 m)
  • For pure, clean, dirty and aerated liquids
  • Dedicated Ex solution for hazardous area Zone 1 + 2
  • Glass-fronted with magnetic keypad
  • Temperatures: -50 °C to +115 °C
  • Bi-directional flow measurement
  • Accuracy: ±0.5 % (velocity)
  • Dual-channel flow measurement (optional)
  • PT100 inputs for temperature compensation
  • Internal data logger for 100,000 measurements
  • Incorporated bi-directional totalizer
  • Meter diagnostic functions
  • Data download via RS 232 or USB cable
  • Analogue inputs for pressure / temperature compensation
  • Intuitive flow meter menu and Setup Wizard
  • Unique Audible Sensor Positioning Assistant
  • Density / concentration measurement option

The KATflow 170 is a fixed installation clampon ultrasonic Ex flowmeter for noninvasive and nonintrusive flow measurement of liquids and liquefied gases in fully filled pipes. The flowmeter is approved for operation in Zones 1 and 2, and programmed with a magnetic pen through a glass-fronted keypad for increased safety.

General information

The transmitter electronics are housed in either a special corrosion-resistant epoxy-coated aluminium or stainless steel housing and can be powered by AC or DC power supplies. By offering a wide range of input, output and communication inferfaces such as RS 485 and Modbus, the flow meter can easily be connected to process automation systems.

The U-F-M KATflow 170 can be supplied with one or two measurement channels. It is therefore ablte to offer a cost-effective solution for multi-pipe metering applications. The dual-channel measurement function can also be used to monitor one single pipe in a two-path sensor mounting configuration in order to increase the accuracy under difficult flow conditions with disturbed flow profiles. The incorporated calculation functions Sum, Difference, Average and Highest Value complete the dual-channel feature.

As with all other Katronic models, the KATflow 170 offers an intuitive instrument menu and Setup Wizard which guides the user step-by-step through the meter configuration.

The correct installation of the clamp-on sensors on the pipe is made easy by the incorporated Audible Sensor Positioning Assistant which gives the user visual and audible indications during sensor mounting.

Ultrasonic Transducers

katflow170-coverThe flow sensors supplied with the KATflow 170 are IP68 as standard and are manufactured with a stainless steel head and sturdy cable conduit ensuring extreme robustness.

The ultrasonic sensors cover a pipe diameter range from 10 mm to over 3,000 mm and process temperatures from -30 °C to +120 °C.

Measurement technology

All KATflow clamp-on ultrasonic flow meters of U-F-M apply ultrasonic transit-time measurement technology.

This enables the instruments to provide highly accurate and reliable flow data for almost any kind of liquid regardless of its electric conductivity.

Data logger and download interface

The KATflow 170 can be ordered with an internal data logger, which is available in two sizes to store up to 30,000 or 100,000 measurements with each measurement comprising up to 10 units (velocity, volume, mass, heat flow, heat quantity and temperature units) which can be selected by the user before each measurement.

In combination with a data logger, the KATflow 170 is supplied with the KATdata+ software which enables the user to download and visualise the flow data on a computer after the measurement or in real-time using the embedded terminal function. The data can be transferred via RS 232 or USB.

Additionally, the KATflow 170 can be used for pressure, temperature and viscosity compensated flow measurement systems.

The specification of the instrument can be taken one step further by applying the optional speed-of-sound measurement function. This enables the KATflow 170 to be employed for contactless concentration monitoring applications (e.g. as product recognition system).

Typical applications

  • Produced water measurement
  • Methanol / water injection systems
  • Oil blending systems
  • Measurement of refined products
  • Distillery process measurements
  • Interface detection
  • Product recognition systems
  • Offshore applications
  • Automated process control


T  +31 (0)165 855 655

E  info@u-f-m.nl


#ultrasonicflowmeter | U-F-M for ultrasonic clamp on flow instrumentation sales, rental and service