Teledyne 7600 Operating Instructions Manual page 49

Infrared Gas Analyzer
This brings up the Cal. Settings ZERO Cal. screen where you can
set whether all components or individually selected components are
zeroed during a manual zero calibration. The choices are:
• at once—these components will be zeroed simultaneously
during a manual zero.
• each—these components will be zeroed individually during a
manual zero.
To change the manual zero setting:
1. In the "Cal. Settings ZERO Cal." screen, point the cursor
to the channel you want to set by using the UP or DOWN
key. Press the ENT key.
2. Select "at once" or "each" by pressing the UP or DOWN
key to toggle between the two options. Press the ENT
key when the desired option is displayed.
To close the Cal. Settings ZERO Cal. screen or cancel this mode
midway, press the ESC key. The previous screen will return.
Example:
The options "each" or "at once" can be determined for each
channel.
• When the setting is "each", select the channel on the manual
zero calibration screen (see Section 3.7) and perform a zero
calibration. Only that component is zeroed.
• When the setting is "at once", performing a manual
calibration (see Section 3.7) will zero calibrate all
components tagged "at once". You will notice on the manual
Teledyne Analytical Instruments
Operation
49