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6.2 MENU SELECTION
From the Operating Mode screen, there are six menus that can be selected
by the user. They are “ZERO CALIBRATION,” “SPAN CALIBRATION,” “PEAK/
HOLD,” “ALARM SETPOINT,” “TWA/STEL,” and “CONFIGURATION.” De-
press the pushbutton below the MENU prompt on the display and then one
of the following screens will appear:
ZERO CALIBRATION
For Toxic Gases
NEXT AUTO ZERO
AUTO CALIBRATION
For O
2
NEXT CALIBRATE
The AUTO ZERO or CALIBRATE command and “NEXT” command appear
above the pushbutton that activates that function.
To AUTO ZERO or CALIBRATE the sensor, depress the right pushbutton.
See Section 6.3 for details on calibration.
To go to the next menu, depress the left pushbutton below the “NEXT” com-
mand and the following screen will be displayed:
SPAN CALIBRATION
For toxic gases
NEXT SELECT
To Span a toxic gas sensor, depress the “SELECT” pushbutton. See Sec-
tion 6.4 for details on span calibration.
NOTE: There is no span calibration screen when using the Mini-Sa
portable to detect oxygen. The screen will go directly to the next
menu.
To go to the next menu, depress the left pushbutton below the “NEXT” com-
mand and the following screen will be displayed: