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Cairo University +20 2 35728232
Center of Hazard Mitigation, Environmental Studies and Research (CHMESR) Center of Hazard Mitigation, Environmental Studies and Research (CHMESR)
Maintenance & Technical Support Department
الصفحات الرئيسية والفرعية (CMS Pages)

Maintenance & Technical Support Department

Preventive and emergency maintenance for ambient air monitoring stations and Thermo Scientific analyzers ensuring 24/7 uptime.

Maintenance & Technical Support Department
Preventive and emergency maintenance for ambient air monitoring stations and Thermo Scientific analyzers ensuring 24/7 uptime.

Maintenance & Technical Support Department

The Maintenance Department executes proactive preventive and corrective engineering maintenance for all stations comprising Egypt's National Ambient Air Quality Monitoring Network. The specialized engineering teams respond instantly to technical faults, performing precision diagnosis, component restoration, and genuine spare parts installation.

Accredited Instrumentation Suite (Thermo Scientific USA):

Stations are equipped with industry-leading Thermo Scientific continuous gas and particulate analyzers providing 24/7 automated telemetry:

  • Particulate Matter Monitors (Model FH62C14 / 5014i Beta Gauge): Automated beta-attenuation monitors for continuous PM10 and PM2.5 mass determination.
  • Nitrogen Oxides Analyzer (Model 42i NOx): Utilizes Chemiluminescence technology to measure NO, NO2, and NOx from combustion and vehicle emissions.
  • Sulfur Dioxide Analyzer (Model 43i SO2): Employs Pulsed Fluorescence detection to quantify atmospheric sulfur dioxide concentrations.
  • Carbon Monoxide Analyzer (Model 48i CO): Measures ambient CO using Gas Filter Correlation (GFC) non-dispersive infrared spectroscopy.
  • Ozone Analyzer (Model 49i O3): Utilizes dual-cell UV Photometric absorption to monitor ground-level ozone.
  • Hydrogen Sulfide Analyzer (Model 450i H2S): Pulsed fluorescence detection with thermal converter for sulfur compounds.
  • Meteorological Sensor Suites: Precision anemometers, wind vanes, temperature, and relative humidity sensors correlated with dispersion telemetry.

Maintenance Engineering & Analyzer Services

Particulate Monitors (Thermo 5014i Beta Gauge)
Particulate Analyzers

Particulate Monitors (Thermo 5014i Beta Gauge)

Comprehensive electromechanical overhaul of filter tape mechanisms, pumps, and radiometric sensors.
  • Thermo 5014i
NOx Chemiluminescence Analyzers (42i)
Nitrogen Oxides

NOx Chemiluminescence Analyzers (42i)

Inspection of reaction chambers, internal ozonators, molybdenum converters, and high-vacuum sampling pumps.
  • Chemiluminescence
SO2 Pulsed Fluorescence Analyzers (43i)
Sulfur Dioxide

SO2 Pulsed Fluorescence Analyzers (43i)

Servicing pulsed fluorescence optical benches, UV flash source alignment, and hydrocarbon kicker purge.
  • Pulsed UV
CO Gas Filter Correlation Analyzers (48i)
Carbon Monoxide

CO Gas Filter Correlation Analyzers (48i)

Alignment of rotating gas filter correlation wheels, IR source optimization, and zero drift rectification.
  • GFC-NDIR

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