Model AF22M -UV Fluorescent Sulfur Dioxide Analyzer

The analyzer was developed to meet customers` requirement for reduced and easier maintenance. Equipped with an enhanced aromatic hydrocarbon scrubbing system that guarantees complete removal of these interferents, the AF22M also achieves very high sensitivity and stability through the use of an optical shutter to compensate for PM drift.

The AF22M combines a powerful easy-to-use interface with quality components and design technology. Realtime calibration graphs can be displayed during span check operation. Multi-tasking software, combined with the LCD graphic display, gives a user-friendly access to the instrument set-up, as well as the status and maintenance parameters. Real-time synoptic, auto-diagnostic and maintenance data screens can be displayed while the instrument is operating. The new electronics allow enhanced data storage of more than two months of 15 minutes averages, and total remote troubleshooting diagnostic capabilities via modem, using the analyzers complete display and functions emulation.

Equipped with the optional ESTEL I/O analog & digital board, the AF22M can be easily interfaced with other equipment and can oe operated as a stand alone unit able to store several months of data.

Main features :

• Graphic Liquid Crystal Display (LCD)
• Interactive menu driven software with enhanced speed display
• Real-time synoptic flow diagram display
• User programmable ranges and average times
• Auto-ranging
• Automatic and programmable response time
• Real time calibration graph
• Built-in storage of 2 months 1/4 h average data (up to I year with the optional memory extension )
• Built-in double serial interface (RS 232/RS 422) for remote control & maintenance

Major fields of applications :

• Ambient air monitoring
• Indoor air monitoring
• Mobile laboratory
• Air quality and stack monitoring of petrochemical, pulp & paper plants , water treatment plants
• Continuous emissions monitoring (CEM) by dilution extraction

New analyzer

• Ultra compact and light-rack 3U
• SMC enhanced electronics
• High metrology
• Enhanced optical shutter
• Enhanced data logging functions
• In compliance with ISO 10498

Reduced maintenance

• Ease and accessibility of components
• Traceability of parts and consumables
• Remote maintenance and telediagnostics

Specifications:

• Ranges: 0-0.1/ 0.2/0.5/1/2/5/10 ppm or user selectable ranges
• Autoranging between two-user specified ranges
• Noise (a) :0.5 ppb
• Lower detectable limit (2a): 1 ppb
• Response time: automatic and program mable (minimum 10 sec)
• Zero drift: less than 0.5 ppb / 24 h, less than 1 ppb/7days
• Span drift: less than 0.5%/ 24 h, less than 1 %/7days
• Linearity: ± 1 %of F.S.
• Pressure and temperature compensation
• Internal sample pump
• Sample flow rate : 0.3 Ipm
• Averaging time: programmable from 1min to24h
• Data storage: 2 months quarterly average values
• Chassis: 19" rack mountable, 3U
• Dimensions: 545 mm x 483 mm x 133 mm (LxWxH)
• Weight :10 kg (22 lbs)
• Power: 115 Vf60 Hz - 230 V, 50 Hz
• Power consumption : 60 VA
• Operating temperature: 5-40 °C (typical as per US EPA 10- 35° C)
• Digital output: 2 RS 232 or RS 422 ports
• PVDF sample filter holder
• Valves block for selection of customer - supplied zero and span gas

Options :

• EbTEL electronic board (1 or 2) with :
• 4 independent analog inputs
• 4 independent analog outputs
• 4 remote control inputs
• 6 dry contacts
• Built-in permeation bench with SO2 tube and Filter-Valves block
• Memory extension (1 year of 1/4 h average values)
• 24 V DC power supply for on-board applica¬tions
• Built-in H2S ■► SO2 converter for H2S low level monitoring
• Ranges: 0-0.05/0.1/0.2/0.5/1 ppm or user selectable ranges
• Cycle time : SO2/H2S : 7 min
• SO2 scrubber capacity : 500 ppm/ h
• 3 selectable operating modes:
• continuous H2S
• continuous SO2
• cyclic SO2/H2S
• Total Reduced Sulfur (TRS) external converter TRS *► SO2 for TRS low level monitoring.