Basic Programming 5-7
September 2007
QUICK ZERO Option The Quick Zero option uses a zero gas of known concentration to
perform a quick field recalibration the XMO2. The XMO2 compares
the data from the new field calibration to the original factory
calibration data, and stores the difference in a Drift Curve.
Note: This option appears only if DriftCal is ON and a two-gas
calibration has been selected.
To use the Quick Zero option, complete the following steps:
1. Using the sample system controls, stop the flow of sample gas to
the XMO2 inlet port and initiate a flow of the same zero gas
specified on the XMO2 Calibration Sheet. Establish the same flow
rate and pressure conditions used for the sample gas, and allow the
zero gas to flow through the XMO2 for at least three minutes.
2. Perform the zero gas calibration, press
[N] until the following
prompt appears. Then, proceed as follows:
You may now do one of the following:
• Press [N] as many times as necessary to select another Basic Menu
option. Then, press
[Y] and proceed to the appropriate section for
instructions.
• Press [N] repeatedly until the Resume? option appears. Then, press
[Y] to return to Operate Mode.
BASIC MENU
Press [Y] or [Enter] to initiate the
zero gas calibration.
Quick Zero?
BASIC MENU
This screen appears while the
calibration is taking place.
DriftCal In Progress...
BASIC MENU
The zero gas calibration has been
completed.
Quick Zero?
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