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Product Description

The XGA301 Industrial gas analyzer from Michell Instruments provides a convenient platform to measure oxygen, dew point and other gases such as CO2, CO and CH4. The analyzer can be supplied in one of two bench-mounted chassis and with up to three sensors fitted.

Standard features include two fully-programmable alarm circuits (voltage-free contacts), programmable analog outputs, RS232 communications and complete Windows-based data-logging software.

The industrial zirconia oxygen sensor provides fast and accurate oxygen analysis over the range of 1 ppm to 30%* O2 and delivers stable and repeatable readings, with a typical response time of less than 5 seconds for a 90% response to a step change in gas compositions. The zirconia sensor is heated, and temperature-controlled to enable oxygen ions to conduct. An internal pressure sensor compensates for small changes in the gas pressure to maintain accurate and stable readings. An optional, variable speed-pump draws a gas sample at a flow rate set by the user between 0 to 1.2 Nl/min.

Product Features
- Sensor choices from zirconia, galvanic electrochemical, infrared and ceramic impedance technologies
- Variable speed pump (optional)
- Zirconia sensor cleaning facility which can be operated at any time during use
- Intuitive HMI with back-lit display
- Two fully-programmable alarms
- 2 x voltage outputs and 2 x 4–20 mA outputs
- Digital RS232 output
- Software package includes live graphing and Excel™ compatible data-logging
- Password protection

Technical Specification        
- Sensor Type : Zirconia Sensor        
- Measurement range : 1 ppm to 30% (Not suitable for enriched oxygen)
- Calibration (user) : Requires 2 or 3 user-selectable gases
- Accuracy : ±1% of reading or 0.5 ppm, whichever is greater
- Response time : Approx. 5 seconds for a 90% step change (gas flow rate of 1 Nl/min-1)
- Stability : ±2% of reading per month
- Life expectancy : Greater than 17,500 hours
- Measurement range : –100 to +20°Cdp
- Calibration (factory) : Traceable 7-point calibration certificate
- Accuracy : ±2°Cdp
- Output : Dew-point or ppmv moisture content
- Operating temperature : +5 to +35°C
- Warm-up time : 3 to 4 minutes @ +20°C
- Maximum inlet temperature : +50°C
- Sample flow rate : 0 to 1.2 Nl/min, user-selectable with pump
- Maximum inlet pressure : 1 barg

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