Inline Gas Analyzers

WITT Gas analyzer PA 7

Gas Analyzer PA 7.0

Compact gas analyzer for O2, CO2 or O2/CO2, various applications

WITT Gas analyzer MAPY LE

Inline Gas Analyzer MAPY LE

Gas analyzer for O2, CO2 or O2/CO2, e.g. for flow packs

Witt Gas Analyser Mapy Vac

Inline Gas Analyzer MAPY VAC

for traysealers and thermoformers, O2 or O2/CO2

WITT Gas analyzer MAPY

Inline Gas Analyzer

Plug-in module for permanent analysis of gas mixture, e.g. for CO2, O2, H2, He

W I T T Back Purging Filter Front

Back-purging filter

Back-purging device for in-line gas analyzers against blocked filters on gas inlets


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WITT USA: +1 770-664-4447

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Inline Gas Analyzers

WITT inline gas analyzers are used for permanent or sample analysis of gas mixtures and provide high quality and safety in production processes, for example in thermal treatment applications. They are available for O2, CO2, methane, helium and hydrogen.

Various technical applications

WITT inline gas analyzers can be delivered as an integrated version in gas mixing systems or as separate analysing systems. For highest safety requirements an emergency cut-off can be activated. For example when the hydrogen concentration reaches over 5 % the hydrogen supply can be isolated and the system flushed with 100% nitrogen. Operation is easy via a touchscreen electronic control unit GC50.

Numerous interfaces and connections such as Ethernet, 4-20 mA or potential free contacts make integration into existing systems simple.

Food industry

WITT inline gas analyzers guarantee high efficiency and safety - so no leaky packaging gets shipped. The inline gas analysis starts directly during the packaging process and offers a continuous checking of the supplied protective atmosphere. This quality assurance is the perfect complement to subsequent checking, increases process quality and allows the reduction of random checks. This reduces personnel costs and the amount of packaging waste. Depending on the packaging machine, even the gas consumption and thus the costs can be significantly reduced.

The WITT product range includes suitable inline analyzers both for form, fill and seal machines as well as for thermoforming machines and tray sealing machines.

In thermoforming packaging machines or tray sealing machines, a vacuum is first generated in the packaging chamber, thus removing the air. In the next step, protective gas is supplied and then the tray is sealed. WITT also offers the MAPY VAC analyzer, which is specially designed for these machine types.

In each cycle of the packaging process, a sample is taken when the protective gas is filled into the packaging and analyzed within seconds. The testing process is fully automatic. An alarm is triggered when limit values are exceeded. The user can intervene directly and make changes to the process. The quality of the MAP packaging process is 100% assured and continuously optimized.

Owing to nature of the process, the amount of gas used in these packaging machines cannot be reduced. Nevertheless, inline gas analysis is very important for the most effective quality management. The sampling frequency and the associated personnel costs can be reduced, and the packaging quality increased at the same time. This is important for achieving the target best-before date and thus for securing your customer relationships in the long term.

In flow packaging machines, protective gas is continuously fed into the film tube during packaging. The MAPY LE online gas analyzer is the key to maximum efficiency: with a lance, a sample is continuously taken from every single pack and quickly analyzed. As long as the oxygen value is below the set limit value, the quantity of the supplied protective gas is reduced via the gas mixer or a gas dosing unit. Only as much gas is used as is absolutely necessary for an optimum packaging result. Completely automatically. Human intervention is not necessary. The cost advantage is obvious: A reduction of gas consumption of up to 50 % is possible.

The inline gas analyzer is operated intuitively via the touch screen of the electronic control unit. The devices can be flexibly integrated into existing systems via numerous interfaces and connections such as Ethernet, 4-20 mA or potential-free contacts. Retrofritting is also possible.

Give us a call!

Headquarters: +49 (0)2302-8901-0
WITT USA: +1 770-664-4447

Quotation request Get call-back

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