Gas Connection; Sample Gas Requirements; Calibration Gases - Michell Instruments XTP501 User Manual

INSTALLATION
4.4.1

Gas Connection

The gas connections are on the bottom surface in the centre of the unit. The gas inlet is
the right-hand connection when viewing the unit from the front. 501 models have 1/8''
Swagelok gas connections.
4.4.2

Sample Gas Requirements

Samples must have a dew point at least 10°C less than the cell temperature (so as not
to condense), be free from oil-mist and with particle size < 3μm.
NOTE: There is NO filtration inside the analyzer.
Sample Inlet Pressure:
0.75 to 1.5 Bar A (10 to 20 psi A)
Sample Flow Rate:
100 to 500 ml/min (0.2 to 1.06 scfh)
Ideally a flowmeter and needle valve would be placed in front of the analyzer and the
vent would be open to the atmosphere.
4.4.3

Calibration Gases

Cylinders of the appropriate Zero and Span gases should be available for installation
and commissioning. Dependent on the specific duty of the analyzer, these gases may
have a lead time of several weeks. See Section 3 for more information.
If you are having difficulty in finding a local gas supplier, please contact your local
Michell representative for assistance.
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XTP501 & XTC501 User's Manual
99976 Issue 1.1, May 2020