XMTC User’s Manual
47
Chapter 4. Calibration
4.6 4-Port (Flowing Reference Gas) Calibration
1.
Connect the XMTC Reference Inlet to the reference (span) gas via the Reference Gas Inlet on the sample
system or other gas control system.
2.
Establish a flow rate of 0.5 SCFH (250 cc/min) of reference (span) gas at 0.0 psig to the XMTC Reference
Inlet.
Note:
You can use a calibration gas flow rate as low as 5 cc/min to conserve gas.
3.
Connect the XMTC Sample Inlet to the zero gas via the Zero Gas Inlet on the sample system or other gas
control system.
4.
Establish a flow rate of 0.5 SCFH (250 cc/min) of zero gas at 0.0 psig to the XMTC Sample Inlet.
5.
Allow 2-5 minutes for the reading to settle. Move
S1
to the zero position (marked on the PCB). Press
S3
(the
calibration button) for about 20 seconds.
6.
Connect the XMTC Sample Inlet to the span gas via the Span Gas Inlet on the sample system or other gas
control system.
7.
Establish a flow rate of 0.5 SCFH (250 cc/min) of span gas at 0.0 psig to the XMTC Sample Inlet.
8.
Allow 2-5 minutes for the reading to settle. Move
S1
to the span position (marked on the PCB). Press
S3
(the
calibration button) for about 20 seconds.
Summary of Contents for XMTC
Page 1: ...GE Measurement Control Gas Analysis 910 217 Rev G October 2013 XMTC User s Manual ...
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