EAC Sarl is specialized in the following “strongly instrumented” activities:

  • Measuring flows of compressed air, nitrogen, cold water, or hot water by means of non-invasive ultrasonic flowmeters.
  • Measuring electrical powers, cooling capacities or heat exchanges.
  • Detecting compressed air or nitrogen leaks in noisy areas.

Yet we usually recommend initiating a study by a minimalist and non-instrumented service: AUDIT OF USAGES.

The initial advantage of this service is that it is relatively inexpensive due to the fact that it is minimalist and non-instrumented. Secondly, this audit of usages can be carried out in a very short time. Finally, it has proved to be very profitable in certain industries.

Meeting followers of Lean led us, a few years ago, to create this rather original service.

Yet its true sources of inspiration are three methodologies coming from very different backgrounds:

1. Over the years, EAC has developed an audit track for its compressed air audits. This audit track includes four main input domains: MEASUREMENTS, SCHEMES, PROCEDURES, and CONTRACTS.

2. EAC has also used a methodology called “Functional analysis of requirements” or “Value analysis.” It uses essentially four verbs:  SUPPRESS, REDUCE, IMPROVE, and CREATE.

3. More recently, we have adapted another theory which was originally developed by military strategists. The way we use it, this methodology includes four verbs: FORESEE, SPECIFY, SIMPLIFY, and CLARIFY.

In some cases, the results of the audit of usages of compressed air are sufficient for you to come to a decision concerning the implementation of actions which are consistent with your goals.

In other cases, it may be that the auditor’s conclusion is that your installation is close enough to optimum: this precludes the need for a lengthy and more expensive instrumented study.

And finally, in some cases the audit of usages will suggest some complementary study, such as measuring the flow of a compressed air usage which you may SUPPRESS or REDUCE.

This presentation aims to explain what the AIRPROFIL AUDIT OF COMPRESSED AIR USAGES consists of.


It certainly makes sense to start a compressed air study with a NON-INSTRUMENTED STUDY, in order to decide what to measure! Measuring all compressed air stations the same way, while each factory is so particular, does not make sense; except, that is, if your goal is to sell compressed air or compressors!

It also makes sense to try NOT TO USE COMPRESSED AIR whenever it is known to be inefficient or needlessly expensive. Before thinking of producing your compressed air efficiently, you should try to check if you really need compressed air at all, or if you can reduce your plant’s compressed air consumption!
Although these two ideas seem quite simple, they are not generally accepted.
In fact, we need to consider the following:

  • Many people believe that measuring compressed air flow is always useful.
  • Many professionals claim that they are not involved in the way their client uses compressed air. It is almost for them an ethical requirement or a mark of politeness.
  • In contrast, we believe that one should use flow rate measurements (which are our main activity), not with the intention of making a “photograph” of the present situation, but rather with the mindset of evaluating the results of actions.

In addition, we would definitely have an input into the way you use your compressed air, because in many plants there is much more to be saved on compressed air usages than on leaks.


When we carry out a compressed air audit of usages, we will visit your factory in order to get a clear overall picture and during this visit we will inspect your compressed air installation as a whole and not just the compressed air station.

Together with your engineers we will draw up a list of the compressed air usages.

We then search “ends, ways, and means” in order to evolve your compressed air installation from the present situation to a future situation more in line with your goals.

This will be done using the three methodologies.

Firstly, we will search for information through the 4 “Input Domains” of the AIRPROFIL audit track:

  • MEASUREMENTS (available measurement results)
  • SCHEMES (available schemes of compressed air stations and networks)
  • PROCEDURES (operation, maintenance, etc.)
  • CONTRACTS (operation, maintenance, etc.)

Then, we will apply the 4 “verbs” of action of “Value Analysis”:

  • SUPPRESS (unjustified compressed air usages?)
  • REDUCE (leaks?)
  • IMPROVE (compressed air pressure stability or compressed air quality?)
  • CREATE (back up station?)

Finally, we will consider the 4 verbs of strategic analysis:

  • FORESEE (the plant activity, …)
  • SPECIFY (the quantitative and qualitative needs, …)
  • SIMPLIFY (the compressed air network, …)
  • CLARIFY (guarantees, …)


The working language is usually is English or French.

As many technicians involved with compressed air in the world do not really read or speak English or French, we have performed “bilingual” reports in:

  • English and German,
  • French and Italian,
  • French and Spanish.

The problem is, of course, that we need to be able to check the translation when we use a translator. As our reports are a bit specialized, it is not quite easy to find translators who understand our work!

This is one of the reasons why we need partners!


In January 2013, I spent a few days near Liverpool (United Kingdom).

I visited about 25 packing lines, most of them very similar, together with just about as many British engineers.

The engineer responsible for the 25th packing line said that he was surprised that a Frenchman could know the names of his machines (names such as sorters, labelers, or rejectors) better than he did.

I had just had to listen to these names and write them down 24 times in the preceding 3 days, which is sufficient to teach even a Frenchman!

So if you want an offer for an audit of your plant’s compressed air usages (and if you feel like teaching to a French auditor the names of your machines!) please contact us:

Mr. François BOUTEILLE
Manager and owner of EAC Sarl
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Telephone: +33 612 156 155