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 in combination with another sensor within the XGA301A2’s chassis.
*Analyzer is not suitable for enriched oxygen.
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
Sensor Type: Zirconia Sensor
1 ppm to 30%*
*Not suitable for enriched oxygen
Requires 2 or 3 user-selectable gases
±1% of reading or 0.5 ppm, whichever is greater
Approx. 5 seconds for a 90% step change
(gas flow rate of 1 Nl/min-1)
±2% of reading per month
Greater than 17,500 hours
Sensor Type: Ceramic Impedance** **XGA301A2 only, please see the Easidew Transmitter datasheet for more information
–100 to +20°Cdp
Traceable 7-point calibration certificate
Dew-point or ppmv moisture content
+5 to +35°C
3 to 4 minutes @ +20°C
Maximum inlet temperature
Sample flow rate
0 to 1.2 Nl/min, user-selectable with pump
Maximum inlet pressure
XGA301A1/A2: 16 x 2 character (9mm) back-lit LCDM XGA301A3: 20 x 4 character (9mm) back-lit LCD
90–260 V AC, 50/60 Hz
2 x 4–20 mA, 2x alarm relays RS232 2 x 0–10 V (XGA301A1 only) 2 x 0–5 V (XGA301A2 only)
Standard: 4mm ID / 6mm OD nipple — gas fittings on front panel Optional: Rectus™ or Swagelok® 6mm fittings, rear panel fittings for XGA301A1 only
XGA301A1: 250mm x 263mm x 150mm XGA301A2/A3: 350mm x 263mm x 150mm
XGA301A1: 3.5kg XGA301A2/A3: 4 to 5.5kg
XZR400 Series The XZR400 oxygen analyzer measures trace oxygen in pure gases. It is used to control the purity of gases such as Nitrogen, Argon, Helium and Carbon Dioxide during manufacture, quality in air separation plants, or for quality assessement of bought gases.
It is available in wall-mountable and rack-mountable versions, both suited to a range of applications.
XTP601 A robust, linear and stable oxygen analyzer for measurements in gases such as hydrogen, nitrogen, carbon dioxide etc. The sensor is housed in a rugged casing, making it suitable for a wide range of applications. When the flame arrestors are fitted, the analyzer becomes explosion-proof and suitable for hazardous areas.
Online Hygrometer A cost effective hygrometer including an Easidew Transmitter and digital display with analog and digital outputs and dual alarms.