GA5000 analyzer for measurement of CH4/CO2/O2/CO H2 comp.(2000 ppm)/ H2S (500 ppm) + GPS, bluetooth

on inquiry
Catalog number: G*GA5KAA00-200

The Geotech GA5000 is a landfill and contaminated land portable gas analyser, with available gas measurements of CH4, CO2, O2, H2S and CO. It is easy to use and calibrate, benefiting from our market leading reliability and helping you to standardise monitoring routines, whilst supporting environmental legislation compliance.

Key features

  • Measures % CH4 CO2 and O2
  • CH4 and CO2 accuracy +/-0.5% after calibration
  • Modular and upgradeable
  • On board context-sensitive help
  • See here for a list of all the new features
  • Choice of user settings
  • ATEX, IECEx, MCERTS, CSA and UKAS calibration (ISO17025) certified
  • Additional Gas Analyser Manager software for data download available
  • Optional accessories including ATEX certified anemometer
  • Choices of borehole gas flow measurement; GPS / field navigator
  • Optional additional gases (H2S up to 10000ppm and H2 compensate)
  • Device has to be calibrated with original calibration kit from Geotechnical Instruments or use sampling bags for this purpose
Technical specifications

POWER SUPPLY Battery type Rechargeable nickel metal hydride battery pack (not user replaceable) Battery life Typical use 8 hours from fully charged Battery charger Separate intelligent battery charger powered from mains supply (100–240V) Charge time Approximately 3 hours from complete discharge

GAS RANGES Gases measured CO2 and CH4 By dual wavelength infrared sensor with reference channel O2 By internal electrochemical sensor CO (hydrogen compensated), H2S, NH3 and H2 (optional) By internal electrochemical sensor A full range of internal gas cells can be specified at the time of manufacture. Oxygen cell lifetime other chemical cell lifetime Approximately 3 years in air Suitable for sampling applications – not for continuous use Range CH4 CO2 O2 CO H2S 0–100% 0–100% 0–25% 0–2,000ppm 0–50ppm up to 0–10,000ppm

Response time, T90 CH4 CO2 O2 CO H2S ≤ 10 seconds ≤ 10 seconds ≤ 20 seconds ≤ 30 seconds ≤ 30 seconds

*Hydrogen compensated carbon monoxide measurement Compensated for interference from up to 2,000ppm hydrogen. Hydrogen cross gas effect on CO approximately

PUMP Flow 550 ml/min typically Flow fail point

  • 200 mbar vacuum – user settable

Maximum vacuum restart

  • 375 mbar approximately with flow rate of approximately 80ml/ min


  • Landfill gasGas Application
  • PortableAnalyzer type

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Laboratory instruments and accessories

Measurement and control


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