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Our turbine flowmeters measure flow using infrared reflections, a more detailed explanation can be seen in the video below:

Accuracies of 1% can be achieved with our flowmeters.

Each flow tube has its own K-factor (calibration factor). The K-factor is the number of pulses per liter of liquid going through the flowmeter. Each flow tube is factory calibrated and the K-factor is listed on the label attached to every flow tube. Typical values for the K-factor can be found on the respective product pages.

The flowmeters are used to measure low viscosity liquids. The recommended flow range, temperatures and pressures are listed on the respective product pages. If you want to make sure our flowmeters will work in your process conditions, feel free to contact one of engineers here for one-on-one support.

The flowmeters are tested with liquids; when using gasses we therefore cannot make any claims with respect to accuracy and longevity. 

Due to the use of fluoropolymers (PVDF and PFA) the flowmeters have excellent chemical resistance.

The reflection measurement used in the flowmeter means that opaque and colored liquids can be measured. And in the case a white opaque liquid is used, we can supply the flowmeter with a black turbine.

We always recommend using a filter in line before the flowmeter. Recommended pore sizes are 100 – 250 micron depending on the model. Particles that can pass through these pores are no problem for the flowmeter.

We have a Filter Disc with a pore size of 100 micron available in our shop which can be used in line before our flowmeters.

On the respective product pages of each flowmeter you can find a list of wetted parts, i.e. the materials that come into contact with the liquid.

The available process connectors per flowmeter are listed on the product pages.

By default the flowmeter is connected using three wire leads at the end of the sensor cable. These wire leads are for the power supply, ground/0 V, and signal output. The default cable length is 1 meter, but this can be extended up to 20 meter. Alternative connector options, e.g. a 3.5 mm jack plug, are also available.

The flowmeter can be powered by a 5 – 24 VDC power supply.

The signal output of the flowmeter is a digital NPN square wave signal. We also have D/A converters available in case an analog output signal is required.

Yes, you can. We have two products available that can be used with our flowmeter to monitor flow:

• The Flow Display is a compact display that can be used to show the current flow rate.

• The Flow Controller can be used to monitor the flow rate and show the totalized volume. There is also a dual flow version available to which two flowmeters can be connected.

Yes, you can. We have a Batch Controller available that can be used with our flowmeter for batch control applications. It uses relays to open or close valves based on the volume that is dosed.

Yes, we offer custom-fit and OEM solutions to meet your wishes and needs. You can request support here to get in touch with our engineering and discuss your application.

Each flowmeter is factory calibrated. This calibration is performed using a continuous flow of water.

It is recommended to perform a calibration if your experimental conditions vary from our test conditions, e.g. if you use a pulsating flow. Typically, the deviation from our calibration is constant, so you only have to determine it once.

A Certificate of Conformity is available for all products. For each flowmeter, a Calibration Certificate is available on 1 or 5 calibration point(s). Examples of all certificates can be downloaded.

All certificates can be included in our online shop. If you would like to receive certificate(s) after you received your order, please contact our sales team for more information.

This video shows how to use the Tubeholder:

This video shows how to use the Clamp System:

This video shows how to use the Clip Mounting:

This video shows how to use the Click Housing:

PVDF disposable flow tubes can be sterilized with a gamma radiation dose up to 50 kGy.

When using disposable flow tubes, you can either manually enter the K-factor of a new tube, use the average of the flow tubes you ordered (if a slightly lower accuracy is not a problem), or use our Barcode Scanner.

This video shows how to use our Barcode Scanner: