Michell Instruments XZR200, User Manual

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XZR200 User’s Manual
Michell Instruments 5
INSTALLATION
2.3 XZR200 Variations
The XZR200 will be set-up as one of the following variations (as per customer order):
XZR200-B1-C1 XZR200, standard temperature up to +250ºC (+482ºF)
210mm (8.27") probe
XZR200-B1-C2 XZR200, standard temperature up to +250ºC (+482ºF)
400mm (15.74") probe
XZR200-B2-C1 XZR200, high temperature up to +400ºC (+752ºF)
210mm (8.27") probe
XZR200-B2-C2 XZR200, high temperature up to +400ºC (+752ºF)
400mm (15.74") probe
2.4 Life Span of the Analyzer
Dependent on the application, the XZR200 sensor will have a variable lifespan. In
ambient temperatures with inert gases, the sensor should last approximately 7 years.
For combustion processes the following guide should be used:
Natural gas Approximately 5 to 7 years
Biogas Approximately 3 to 4 years
Biomass Approximately 2 years
Coal and Oil Approximately 1 to 2 years
!
If there is zero oxygen in the sample, the sensor will still try to
pump O
2
within the ZrO
2
and this will, in time, damage the ZrO
2
and degrade its performance. It is, therefore, imperative that
the sensor is not used for prolonged periods in very low oxygen
environments (0.1% O
2
), especially in reducing atmospheres (an
atmosphere in which there is little free oxygen and oxygen is
consumed).