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CFG 291 Fog Generator

Condensation Fog Generator CFG 291 for fog generation to visualise air flows according to ISO 14644-3

The mobile fog generator CFG 291 is used to generate a highly visible, stationary fog for visualising air flows. It combines the handy design of the previous model CFG 290 with optimised fluid guidance and a specially developed evaporator.
Condensation Fog Generator CFG 291 for cleanroom validation, frontsideFog Generator CFG 291 for cleanroom validation, side, with probesFog Generator CFG 291 for cleanroom validation, side, with evaporatorFog Generator CFG 291 for cleanroom validation, frontside, with fog
Condensation Fog Generator CFG 291 for cleanroom validation, frontsideFog Generator CFG 291 for cleanroom validation, side, with probesFog Generator CFG 291 for cleanroom validation, side, with evaporatorFog Generator CFG 291 for cleanroom validation, frontside, with fog
The fog generator is primarily used for the initial acceptance and routine inspections of cleanroom systems in accordance with the standard series ISO 14644 or guideline VDI 2083-3 in order to detect leaks in the transition areas of cleanroom elements, to prove the presence of laminar displacement flow or to visualise the overpressure level of cleanrooms.

Standards

ISO 14644-3
VDI 2083
VDI 2083-3

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product sheet CFG 291
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Benefits

  • operation in different orientations possible (hermetically sealed fluid tank)
  • nearly continuous operation (use of replaceable batteries)
  • easy on-site replacement of the evaporator cartridge by the customer
  • low-impulse fog input into ambient air stream (special discharge probe)

Applications

  • visualisation of air flows in rooms
  • standard-compliant acceptance and routine testing of cleanroom systems
  • visual leak testing of rooms or enclosed areas
  • function testing of various sensors (smoke detectors, PM sensors)

The TopFog fog fluid (aqueous mixture of polyhydric alcohols) is transported from the fluid tank into an evaporator cartridge, where it vaporises at a temperature of about 300 °C and expands into the cooler one spot probe. The fog is formed there by homogeneous condensation and agglomeration.

functional principle of Condensation Fog Generator CFG 291
Parameter titleUnitValue
purpose of use - visualisation of gas flows
sample condition, outlet - highly visible, stationary fog
operating medium, liquid - fog fluid (TopFog Regular, TopFog Light)
operating medium, liquid - composition - main components triethylene glycol, glycerine and ultrapure water
operating medium, liquid - filling volume mL max. 60
operating medium, Flüssigkeit - consumption ml/min 1,70
power supply - lithium-ion accumulator; 3 cells (see product sheet)
dimensions (l × h × d) mm
weight kg 1,2
operation time min 25
  • fog fluid (TopFog Regular, TopFog Light)
  • Aerosol distribution rake
  • evaporator cartridge (new)
  • Friebe C, Krause R, Heidenreich R, Holfeld S, Rosenbaum H,\r\nHackeschmidt K and Gruttner R Test Procedures of Mobile Air Cleaning Devices - First Experiences and Results E3S Web of Conferences 343 (2022) 3004,
    dx.doi.org/10.1051/e3sconf/202234303004
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Our contact details
Topas GmbH
Gasanstaltstraße 47
DE - 01237 Dresden, GERMANY		Tel: +49 (351) 2166 430
Fax: +49 (351) 2166 4355
E-Mail: stopspam_533f0cf36efad4318d7d6e4c28c08f66