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Accuracy | <2% of full scale range under constant conditions |
Analysis Ranges | 0-20, 0-50, 0-100 ppm full scale ranges auto-ranging or manually lock on single range |
Approvals | Certified for use in hazardous areas UL: United States: UL 1203, UL 913, UL 508 Canada: CAN/CSA C22.2 No. 30-M1986, CAN/CSA C22.2 No. 157-92,
CAN/CSA C22.2 No. 14-10 ATEX: Directive 94/9/EC |
Area Classification | ATEX Certified: EX II 2 G Ex d [ib] ib IIB T4 Tamb -20 to +50°C |
Alarms | Two user configurable concentration alarm relays rated 3 A @ 100 V AC Field programmable alarm time delays Alarm bypass for calibration (AIS only) |
Calibration | Span gas 50 to 100 ppm H2S balance air |
Compensation | Barometric pressure (AIS standard) |
Connections | 1/4” min; 3/8” if vent line >3m |
Controls | Water resistant keypad Menu driven range selection, calibration and system functions |
Display | Graphical LCD 70 x 35mm Resolution 0.1 ppm Displays real time ambient temperature and pressure |
Enclosure | NEMA Type 3R for rain in outdoor applications |
Flow | Maintain constant flow, 0.2 Nl/min recommended |
Linerarity | ±1% of full scale |
Pressure | Inlet Regulate to 0.3 to 2 barg to deliver constant 0.2 Nl/min flow Vent Atmospheric |
Power | 12 to 28 V DC 110 to 220 V AC (AIS only) |
Response Time | 90% of final reading in 90 seconds |
Sample System | Coalescing filter, flow meters, sample/span valve Note: Sensor requires 2 to 3 hours exposure to air to recover from exposure to moisture |
Sensitivity | <0.5% of full scale range |
Sensor Model | OSV-72-BH (standard ranges) |
Sensor Life | 24 months @ +25°C and 1 atmosphere |
Signal Output | 4-20 mA Modbus RTU communication (AIS only) |
Operating Range | -10 to +45°C |
Warranty | 12 months analyzer 12 months sensor |
Wetted Parts | Stainless steel |
Optional Equipment | |
Sample Conditioning Systems | Contact Michell Instruments |
OSV-72-BE Sensor | For 0-500 ppm, 0-1000, 0-2000 ppm full scale ranges |