Gas generators redesigned with additional compressor capacity

A new range of laboratory gas generators targeting mass spec manufacturers for their liquid chromatography-mass spectrometry (LC-MS) applications.

The new range includes four models:

- The Genius NM32LA is the smarter brother of the NM30LA. The new model can now fulfil the requirements - pure nitrogen - for almost all liquid chromatography-mass spectrometry (LCMS) Models available in the market today. The Genius NM32LA removes oxygen, moisture and other gases to leave clean, dry phthalate free Nitrogen. Two internal air compressors make this model independent from in-house air supplies. Fitted castors allow the unit to nimbly fit into tight lab spaces and the unit has been approved by major mass spec manufacturers for their (LC-MS) applications.

- The Genius NM-3G has been re-designed with additional compressor capacity. This allows the generator to cycle the compressors more frequently, maximising compressor life. The smart in-built Alert System warns the users of any impending issues but manages the compressors to maintain a full output flow for the generator. It also has anti vibration, low noise, improved drainage and is safer to use.

Two models of the new range fit into the high value bracket and replace previous generator designs while the remaining two models are technically advanced, particularly in terms of safeguards, and fall emphatically into the Premium category. These safeguards are unique to Peak Scientific generators and effectively deliver 'reassurance and confidence for critical functions'. The safeguard technology works by having three internal compressors instead of two. The spare compressor can take on the workload if one of the others fail, ensuring that a constant outlet flow and pressure of nitrogen is maintained. This guarantees the customer an uninterrupted supply of gas even if there is a technical problem.

The generator can then be repaired without the customer ever experiencing 'down-time' or going without gas. This is an excellent facility for critical environments. The additional compressor capacity also facilitates a better duty cycling of the compressors, thus prolonging compressor life.

The 'high value' versions are now smaller in size and fit unobtrusively under a standard lab bench. We have reduced the noise emitted from the internal compressors to offer less acoustic pollution to the customer. Vibration and heat emissions have also been reduced to an absolute minimum.

The new models feature 'alert' and 'service due' LEDs to make the customer aware of problems and service requirements. They also offer a 230v single phase plug and play system and are easy to install.

The Genius models all come on castors to fit easily under standard lab benches and feature improved sound insulation for quieter operation.

The Premium generators also come with a PLC and integrated fault diagnosis, alarm and control panels. The new model has been tested in the field for over 1 year to ensure the design is sound and ultra-reliable.

Max operating temperature has been raised to 30°C and to prevent failure due to usage in excessive ambient temperatures, the system now features a thermostat measuring ambient temperature. This causes the system to alarm if the generator has been running in such an environment for too long a period (thus preventing system damage).

These design-led improvements, that we lovingly refer to internally as 'tinkering', are the result of in-depth product analysis, customer feedback and Peak Scientific's desire to innovate and be market leaders. They have sourced high performance, robust parts and incorporated these into the generators construction. The compressors are stored in a separate compartment, which is well insulated to reduce noise. Heat generated by the compressors is not just vented, but utilised to re-heat the air going into the membranes, reducing the risk of condensation and moisture build up.

They have designed a lot of other clever improvements, such as improving internal layout for more efficient operation and easier access for maintenance. In a nutshell, the Peak Scientific Genius range offers lots more reliability which means virtually no downtime, they are more robust, quieter, give off less vibration and they take up less room in the laboratory.


- Petra Gierga is with Peak Scientific Instruments Ltd,, Inchinnan, Renfrewshire, Scotland.

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