Leak Tester Range F620

SKU: F620

After 40 years, and 100,000 testers installed in more than 5,000 customers worldwide, ATEQ presents its revolutionnary leak tester range : the F6 series including a compact leak tester F620, a weatherproof leak tester F610 and the F670 in its 19"3U industrial format.

New electronic module, new measurement module, new interface, new accessories… All has been made to improve your quality control.

And yet, inside can be found the latest leak testing technics and technology that will garantee you the fastest and most accurate leak testing cycle on the market.


  • Differential pressure decay leak measurement. Use in pressure and vacuum.
  • Large range of leak measurement (ΔP) F.S.: 50 Pa, 500 Pa or 5000 Pa
  • 128 programs
  • 2 languages (English + other one)
  • Manual calibration on front panel with calibrated leak
  • Environment: ROHS  standard
  • Test modes:
    • ΔP (Pa, 1/10 Pa)
    • ΔP / t (Pa/s, 1/10 Pa/s)
    • Flow units (mm3/s, cm3/s, cm3/min, cm3/h…)
    • Blockage test
    • and others, depending on your applications
  • Flexible communication format:
    • RS232: printer
    • Slave USB: supervision
    • Master USB: USB key to transfert (parameters, results, statistics…)
    • Option Fieldbus: profibus, devicenet, profinet, Ethernet/IP
    • Additional Master USB (option) on back panel (Bar code reader – remote control)
    • Memory card for archiving results (1 Millions)


"What You See Is What You Get" WYSIWYG .

ATEQ F6 new interface would almost make the leak testing set up "fun".

The ATEQ F6 interface is friendly for everyone involved in leak testing:

– 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 datas he's expecting in no time
– Any training around an F6 will show how easy it is to teach leak detection to new comers … and that's all thanks to the interface.


15 000 ATEQ customers will not throw there older leak tester and replace it with a new one just because it looks good.

One of the most important feature is the ability of the leak tester to plug into existing PLCs and test benchs without having to reprogram everything.

ATEQ's F6 keeps all its I/O from ATEQ's previous generations Leak testers.

In addition, the F6 also features more modern interfacing like Ethernet and USB, so customers can be sure that it is also fully "Forwards compatible".


The ATEQ F6 "MiniValve" is made for small part testing.

In the pressure decay world, volume is the big ennemy. The more volume is filled, the longer it takes to get into the test pressure, to stabilise and to test the part.

For small parts (up to 5cc) the absurd situation is that most of the volume tested is in the pipes and internal pneumatics of the instrument.

A standard ATEQ valve is already twice as small as the nearest competitor. But ATEQ has gone further with its  minivalve that has allowed it to acheive total cycle time (fill, stabilise, test, dump) down to 0.2 sec for leak rates as low as 0.5 cc/min.


This is the crown jewel technology of ATEQ. Not only does it compensate for temperature variations, but it learns from  the results it gets and adapts itself to those results in a smart way.


Again, this feature is an ATEQ exclusivity. In some applications, filling the part takes more than 1/3 of the total cycle time.

ATEQ has this innovative feature that will let the electronic pressure regulator open fully for a small amount of time, so the part fills up faster.

The "Balistic fill" does not only fill faster. It also helps stabilising the part's volume faster.


ATEQ F6 can leak test components up to 80 bars (1250 PSI) in differential pressure mode. That remains unmatched in the industry.


Your component is sealed?

The F6 "Sealed component" can test it.

What is so special about sealed components?

With pressure decay leak testers, the problem isn't so much to find a small leak in a sealed part, but rather to detect a gross one.

If the component has a big leak, then the internals will get filled at the fill stage, leaving no pressure to drop once the instruments gets into the test stage.

ATEQ has invented and patented the sealed component technic by performing a volume test prior to leak testing your part.

So if there is a gross leak, the volume will be higher than expected and the test will fail.

The range of ATEQ Leak Testers can be fit with as many as 6 different technologies. Most Leak Testing companies around the world claim that this or that technology is better than the others… and they are all right. Each technology is best suited for specific applications but ATEQ is the only company that masters them all.

Furthermore, ATEQ has improved each of these technologies thanks to its 50+ develoment engineers team who work all year long with end users to solve real life application issues.

Differential pressure Decay:

The most popular

By far the most popular technology, differential pressure decay uses a reference volume to test your part. This helps compensate for any ambient pressure or temperature variations as they occur on both parts simultaneously.

Only a leak on the test part will result in a movement of our transducer's membrane.

The second advantage of this method is that the accuracy does not drop with the test pressure as the transducer is measuring pressure differences between the two circuits, as opposed to the traditional pressure decay technology that measures pressure drops against the atmosphere.

Leak ranges (in Pascal/second): From 1 to 5000 Pa/sec pressure drops (Values in cm3.atm/min depend on the test volume)

Maximum resolution: 0.1 Pascal

The one that started it all

As a stripped down version of the previous technology, standard pressure decay compares the pressure on the part with the atmospheric pressure.
This technology is used when the application does not require a very high accuracy or a very fast cycle time.

Leak Ranges (in Pascal/second): From 10 Pa/sec
Maximum resolution: 10 Pascals
Maximum test pressure: 40 atmospheres
Pressure measurement: 1 % of the pressure + 2 digits and 0.1% of full scale resolution

The most convenient

Often considered as a competitor to the Mass Flow technology, continuous flow relies on a differential pressure transducer and a very precise laminar flow tube to measure leak rates.
Its internal volume ensures that the flow generated by the leak remains very stable over time.

This technology is perfectly suited to the gas industry which sees it as a real time leak reader for gas appliances on production lines.

While the instrument generates a leak and shows its value on the screen, the
operator can tighten the connections of the gas product until it reaches an acceptable leak rate.

Leak Ranges (in cm3.atm/h): 0 to 100 or 0 to 1000 cm3.atm/h
Maximum resolution: 0.1 cm3.atm/h
Maximum test pressure: 50 kPa
Pressure measurement: ± 1% of Pressure + 2 digits and 0.1% of full scale resolution

The one for large leaks

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, 1500, 4000 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

For those used to Mass Flow meters

The Mass Flow technology converts a mass of air going through a laminar flow element into a leak value. Should the test part leak, a flow will take place between a reference part and this leak, forcing the air to go through the Mass Flow measuring device that will convert it into a leak value such as cm3.atm/h.

However, unlike traditional Mass Flows, our technology can handle 'large leaking' parts on the line without having to reset the unit.

And unlike our competitors again, we do not use heating elements to measure the mass of air, thus reducing the sensitivity to contamination.

We've also put our expertise in high pressure testing into the pneumatics of this unit, allowing it to measure with a high level of accuracy at test pressures of up to 20 Bar (300 PSI).

Finally, our Mass–Flow technology comes with the latest temperature compensation feature making sure you get the best results in the industry in the toughest conditions.

Leak Ranges (in cm3.atm/min): 2 or 20 or 200 cm3.atm/min
Maximum test pressure: 20 Bar
Pressure measurement: 1% of the pressure + 2 digits and 0.1% of full scale resolution

The fastest

So far, all the technologies we have described use air to measure the leak rate.

In this case we use electricity.

A high voltage loaded sharp end is applied next to an earth connected base and in between lays the plastic part we test. Should a hole exist in the part, ions will start moving from the earth to the sharp end.

This will result in a loss of power and be translated into a leak.

While this method does not quantify the leak rate in terms of cc/min for example, it is the fastest ever invented to detect a leak in a go / no go process.

We have achieved cycle times of less than 7/10 of a second.

Leak Ranges: Depends on the size of the hole and the material of the part

Accuracy: Depends on the size of the hole and the material of the part