RKI Instruments GX-2009 - Manual (Page 30)

30 • Write Commands
There are four column headings and three control buttons in
the GX-2009 Calibration Window.
• Gas
The Gas column shows the four detection channels, the
target gas for each channel, and the detection range full
scale value for each channel.
• Select
The Select column has a selection box for each channel
that allows you to select or deselect a channel for zero and
span adjustments.
• Auto Cal.
The Auto Cal. column displays the auto calibration values
for each channel. These values are retrieved from an
instrument when a connection is established. They cannot
be changed in the Calibration Window.
• Current Reading
The Current Reading column displays the current real time
gas reading for each channel.
• Zero Button
Click Zero at the appropriate time to perform a zero (fresh
air) adjustment on the instrument’s selected channels.
• Span Button
Click Span at the appropriate time to perform a span
adjustment on the instrument’s selected channels.
• Exit Calibration Button
Click Exit Calibration to close the GX-2009 Calibration
Window and return to the Main Window.