APM 433

Stand-alone equipment for monitoring inorganic gaseous pollutants with
Thermo- Electric cooling system to increase the efficiency of absorption

The APM 433 Gaseous Pollutants Sampler has been designed for monitoring Gaseous Pollutants like SO2, NO2, Cl2, H2S, O3, NH3 etc. in ambient air. The APM 433 is an independent stand-alone monitoring instrument (unlike our gaseous sampling attachments APM 411 and APM 411 TE that need to be paired with a dust sampler).

APM 433
APM 802
Beta Attenuation Particulate Monitor
APM 801
APM 577
APM 550 EL
APM 550 MFC
APM 460BL

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A suction pump is also made an integral part of the sampler, besides a flow-meter, time totalizer and timer. Sampled air is bubbled through suitable reagents that absorb specific gaseous pollutants and the absorbing media analyzed as per standard wet chemical methods.

Special features:

  • Cooling based on Peltier Effect to keep the impingers upto 25ºC below ambient temperature
  • No ice required to keep impingers cool
  • Facility to use impingers with fritted disc for sparsely soluble gases like Nox
  • Special Silica-gel filter tubes to remove entrained particulates & moisture
  • Improved valve design maintains constant flow rate
  • In built suction pump, flow meter, time totalizer and timer for auto start / stop