Analab Scientific Instruments Private Limited

Analab Scientific Instruments Private Limited

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Laboratory Gas Generators

Analab Scientific Instruments Private Limited

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Zero Air Generator

The Zero Air Generator is suitable for gas chromatography. Ensuring ultra high purity grade zero air for combustion gas, this type of generator has a stable and lower baseline signal unlike traditional gas sources. Owing to its lower baseline noise, there is larger signal to noise ratio, enhancing the sensitivity or larger peak areas. The zero air generator is easy to operate, with no labor intensive monitoring involved.

Model : ZA4000

Sailent Features

  • Zero Air Generator for low investment
  • Low Electric power consumption.
  • Calibrated needle valve to adjust purge flow.
  • No moving parts.
  • Hence negligible maintenance.
  • Easily installed - just make the air connection & plug in the electrical power cord.
  • Skid mounted unit need no pounds.
  • Pressure capacity : from 4.0 - 7.0 Kg/cm2

Technical Specifications

Moisture Content < 2 ppm
Total Hydro Carbon < 0.5 ppm
CO & CO2 < 2 ppm
Purity of Gas UHP / GC Grade
Micron Particulates < 0.01 Micron
Capacity of Gas 4000 ml/Min at 6 kg/cm2
Method of Purification PSA
Dew Point - 40ºC
Room Temperature 5 - 30ºC
Supply 230Volt ± 10%,50Hz

Operation of Nitrogen Generators

Flow Diagram
Flow Diagram

If the temperature of the compressed air is more then 40ºC then it is necessary to provide AFTER COOLER which should ensure the outlet temperature of 40ºC. During this cooling process, some moisture condenses, which is removed from Prefilter. The HEATLESS type Zero Air Generator is the simplest & economical Zero Air Generator with Activated Alumina Molecular Sieve as the desiccant. The Twin Absorbers filled with these desiccant is assembled with 3-way, 2-way, control valves and interconnected pipings. The unit follows the Drying sequences of 10 minutes. Here one absorber is under drying cycle for 5 minutes & simultaneously the other absorber under goes for regeneration and equalization process for (4 + 1) 5 min. respectively. The changeover of the absorber takes place with the help of sequence timer. The moistured air and regenerative air is drained out through the individual silencer of the absorbers provided at the bottom hence Zero Air comes from the top of the Absorber & is taken to your process for your applications.


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