Manufacturer: PhotoVac
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The Photovac MicroFID is an intrinsically safe Flame Ionization Detector. It is well known for its ease of use and rugged construction. The MicroFID was designed for HAZMAT detection, landfill gas detection, LDAR monitoring, soil headspace screening and confined space entry.


Detectable Compounds

Saturated Hydrocarbons: Methane, Ethane, Propane, n-Hexane

Aromatics: Benzene, Toluene, Naphthalene

Unsaturated Hydrocarbons: Acetylene, Ethylene, 1,3-Butadiene

Chlorinated Hydrocarbons:  Vinyl Chloride, Chloroform, Trichloroethylene, Methylene Chloride

Ketones: Acetone,Methyl Ethyl Ketone, Methyl Isobutyl Ketone

Alcohols: Methanol, Ethanol, Isopropanol, n-Butanol

Please note: This list provides examples of the types of compounds detectable by theMicroFID.


  • 43.4 cm (17.1“) long, 9.8 cm (3.85“) wide, 18.8 cm (7.4“) high


  • 8.1 lb (3.7 kg)


  • 16-key, fixed function


  • 2-line, 16-character LCD with alphanumeric readout

Hydrogen Cylinder Discharge

  • Greater than 12 hours

Hydrogen Cylinder Capacity

  • 9.2 liters

Battery Capacity

  • 15 hours (snap-on replacement)

Serial Output

  • RS–232, 1200-19200 baud with no parity, for tabular and graphic printouts and connection to a Windows® compatible computer

Audio Output

  • On Alarm, LoBatt and NoFlm

Response Time

  • Less then 3 seconds

Operating Temperature Range

  • 41° F to 105° F (5° C to 45° C)

Operating Humidity

  • 0-100% Relative Humidity (non-condensing)

Operating Concentration Range

  • 0.5 ppm to 2000 ppm methane equivalent (Low Range)
  • 10 ppm to 50,000 ppm methane equivalent (High Range)

Minimum Detection Limit

  • 0.5 ppm methane


  • Methane (after calibration with zero air and 500 ppm methane gas): within ± 0.5 ppm or ± 10% of actual methane concentration (0.5 ppm to 2000 ppm range)

Intrinsic Safety

  • Class I, Division 1, Groups A, B, C, & D
  • Hazardous locations, T4 (1350) rating

  • Leak Detection and Repair (U.S. EPA Method 21)
  • Landfill monitoring
  • Natural gas leak detection
  • Petroleum products tank entry
  • Emergency response
  • Soil headspace screening
  • Hazardous waste site delineation
  • Solvent storage and piping
  • Confined space pre-entry
  • Underground storage tanks (UST)
  • Transportation vessels
  • Storage tank maintenance
  • OSHA Compliance
  • EPA Compliance
  • Remediation efficiency