Grafx D – Laminar Flow Tester

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Grafx D – Laminar Flow Tester

Compact Continuous Laminar Flow Meter

Specially adapted for automatic or semi-automatic test machines, the GraFX D has a full range of specifications at a very competitive price.

  • Compact Format
  • Optimized Measurement
  • High Specifications – Competitively Priced
  • Easy Set-Up


High Speed Compact Flow Tester

The ATEQ Grafx D is a flow meter which measures a drop in pressure with a differential sensor (transducer) which is placed at the extremities of a calibrated flow tube. When fluid (gas) moves through a calibrated flow tube (laminar flow), a drop in pressure occurs, the value of which is proportional to flow.


GraFX Touch ScreenPart of the Grafx simplicity comes from using a touch screen. What ATEQ® had in mind was first and foremost an easy interface that could be understood by even beginners in the leak detection field. Moving forward, it was obvious that combining an easy interface with a touch screen would transform the Grafx into a plug and play machine.


The ATEQ Grafx easy enough for anyone to use:

  • A production engineer will find it very easy to set up and remember.
  • A user will find it clear to read.
  • A quality control engineer will get the data they are expecting in no time.
  • Any training around the Grafx will show how easy it is to teach leak detection to new comers … thanks to the interface.


GraFX backward compatibilityOne of the most important features is the ability of the leak tester to plug into existing PLC’s and test benches without having to reprogram everything. The Grafx I/O is compatible with ATEQ’s previous generations leak testers. In addition, the Grafx features more modern interfacing (Ethernet and USB), so customers can be sure that it is also fully “Forwards compatible”.


Many of ATEQ’s leak testers are being installed into quality labs or they are simply being set up in labs prior to being installed on the production line. These test conditions require a small unit with a fast and clear interface and gigantic memory to store all the trial parameters and tests.

ATEQ’s Grafx has it all.

Laminar Flow

Sometimes a leak can be considered as a “small flow”, or a flow as a “big leak”. When your reject level is too high for other technologies, it may be necessary to use a laminar flow tester. A flow takes place between the pressure line and the leak hole of the part. Our instrument features a laminar flow element across which our differential pressure transducer is connected. Every flow generates a pressure difference between the inlet and outlet of the laminar flow element, and this variation is measured by the pressure transducer.

Leak Ranges (in L/H):

5, 30, 150, 500, 1,500, 4,000 or 10,000 L/H

Maximum resolution:

>1% of full scale

Maximum test pressure:

350 kPa

Pressure measurement:

1% of the pressure + 2 digits and 0.1% of full scale resolution


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