- Brand: Michell Instruments
Tags: XGA301, Michell, Instruments
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.
The Easidew Sensor is available for dew points down to –100°C (–148°Fdp) in combination with another sensor within the XGA301A2’s chassis.
*Analyzer is not suitable for enriched oxygen.
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
| Performance | | |
| 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 | |
| Sensor Type: Ceramic Impedance** **XGA301A2 only, please see the Easidew Transmitter datasheet for more information | | |
| Measurement range | –100 to +20°Cdp (–148 to +68°Fdp) | |
| Calibration (factory) | Traceable 7-point calibration certificate | |
| Accuracy | ±2°Cdp (±3.6°Fdp) | |
| Output | Dew-point or ppmv moisture content | |
| Analyzer | | |
| Operating temperature | +5 to +35°C (+41 to +95°F) | |
| Warm-up time | 3 to 4 minutes @ +20°C (+68°F) | |
| Maximum inlet temperature | +50°C (+122°F) | |
| Sample flow rate | 0 to 1.2 Nl/min, user-selectable with pump | |
| Maximum inlet pressure | 1 barg (14.5 psig) | |
| Display | XGA301A1/A2: 16 x 2 character (9mm) back-lit LCDM XGA301A3: 20 x 4 character (9mm) back-lit LCD | |
| Power Supply | 90–260 V AC, 50/60 Hz | |
| Outputs | 2 x 4–20 mA, 2x alarm relays RS232 2 x 0–10 V (XGA301A1 only) 2 x 0–5 V (XGA301A2 only) | |
| Sample connections | Standard: 4mm ID / 6mm OD nipple — gas fittings on front panel Optional: Rectus™ or Swagelok® 6mm fittings, rear panel fittings for XGA301A1 only | |
| Dimensions | XGA301A1: 250mm x 263mm x 150mm (9.8” x 10.4” x 5.9”) XGA301A2/A3: 350mm x 263mm x 150mm (13.8” x 10.4” x 5.9”) | |
| Weight | XGA301A1: 3.5kg (7.7lbs) XGA301A2/A3: 4 to 5.5kg (8.8 to 12.1lbs) | |
