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AF22e - UV Fluorescent Sulfur Dioxide SO2 Analyzer

AF22e - e-series SO2 analyzer

UV Fluorescent sulfur dioxide analyzer AF22e US-EPA approved for compliance with 40 CFR part 53 SUB B and SUB C

  • Superior metrological performances for SO2 measurements in the range 0-20 ppm
  • Innovative conception of the optical module for excellent sensitivity and signal stability
  • Simultaneous multi-screen remote access via Wifi or LAN using the dedicated application ESA ConnectTM for control, diagnostics, software update...
  • Eco-friendly & eco-innovative conception
  • Service assistant inside: detects early signs of trouble, allows predictive maintenance, identifies the service needed and guides the service operations step by step
  • Real-time calibration graph, animated synoptic, auto-diagnostic, control and maintenance data screens can be displayed while the instrument is operating
  • Very small and lightweight  – rack 19"/3U, 9.5 kg
  • Eco-friendly & eco-innovative conception

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For more information on this product, contact us :
Contact Altech USA Enviromental sales.usa@envea.global

  • Continuous indoor and outdoor air quality monitoring

  • Stationary and mobile AQMS laboratories

  • Industrial fence-line SO2 monitoring

  • Continuous emissions monitoring (CEM) by dilution

  • Background (urban or suburban), Rural, Traffic, Kerbside measurement campaigns and monitoring studies

  • Laboratory and field studies on sulfur effects...

The AF22e is a continuous ambient air-quality monitoring analyzer (CAMs), based on the ultraviolet fluorescence principle, which is the standard method for the measurement of SO2 concentration.

  • Superior metrological performances for SO2 measurements in the range 0-20 ppm

  • Innovative conception of the optical module for excellent sensitivity and signal stability

  • Simultaneous multi-screen remote access via Wifi or LAN using the dedicated application ESA Connect™ for control, diagnostics, software update...

  • Real-time calibration graph, animated synoptic, auto-diagnostic, control and maintenance data screens can be displayed while the instrument is operating

  • Service assistant inside: detects early signs of trouble, allows predictive maintenance, identifies the service needed and guides the service operations step by step: increased productivity on site, reduced downtime, more efficiency, less training

  • Includes embedded Communication Protocol for XR® Management Software with automatic recognition and configuration

  • Ultra low power consumption (43 W) means environment-friendly and cost-saving analyzer

  • Breakthrough mechanical design for weight and power saving as well as thermal insulation & reliability

  • Special architecture means that no additional pump is necessary in case of permeation bench option

  • Automatic recognition of plugged electronic boards or optional devices: plug and play principle

  • SmartStatusLight™ power button on the front panel indicating if the instrument is ready to use or not (ON/OFF, Alarm, Maintenance required…)

The e-Series of analyzers has been fully eco-designed, with a special consideration to the environmental impacts of the product during its whole lifecycle. The exclusive "inside the box" foam modular concept makes the product more robust, power saving, quieter in operation, simpler to service and eco-friendly.


Detailed information related in the e-Series brochure

  • Measurement Range: 0-20 ppm, user selectable and programmable

  • Detection limit(2s):

  • Noise:

  • Zero drift:

  • Span drift: <0.5% /24h

  • Response time: automatic and/or programmable

  • Linearity: 1% (of the reading value)

  • Pressure compensation

  • Sample flow-rate: 20 l/h

  • Internal sampling pump

  • Internal solenoid valve block for zero air and span gas

  • Data storage: 1 year (1 minute data)

  • Ethernet network connection (RJ45), 3 x USB ports, 2 dry contacts outputs included

  • Integrated web-server with full remote emulation of the analyzer

  • Dimensions (mm, LxWxH): 483x545x133

  • Chassis: 19’’ rack, 3U

  • Weight: 9,5 kg (20.9 lbs)

  • Operating temperature: 0-35°C

  • Power supply: 115 V, 60 Hz - 230 V, 50 Hz

  • Power consumption: 43 W

  • 7’’ TFT colour touch screen

  • WiFi module (in standard with the no-screen version)

  • Serial interface (via USB port)

  • SO2 permeation bench and filter valve block for calibration control

  • Internal converter H2S -> SO2 (low)

    • Range: 0-0.05/0.1/0.2/0.5/1 ppm

    • Cycle time: SO2 / H2S: 7 min

    • SO2 filter capacity: 500 ppm/hour

  • External converter module TRS -> SO2 for the measurement of low sulfur compounds

  • External opto-isolated I/O interface with:

    • 4 independent analog inputs

    • 4 independent analog outputs

    • 4 remote control inputs

    • 6 dry contacts outputs

  • 24 V DC Power supply for on-board applications