Measurement Mode (Normal Operation); Bump Page - MSA ALTAIR 4X Manual De Funcionamiento

Figure 3-1. Fresh Air Setup
If this option is enabled, the instrument displays "FAS?", prompting the
user to perform a Fresh Air Setup.
1. Press the ▲ button to bypass the Fresh Air Setup.
• The Fresh Air Setup is skipped
• The instrument goes to the Measuring page (Main page).
2. Press the button within 10 seconds to perform the Fresh Air
Setup.
• The instrument starts the FAS.
• The screen shows a No Gas Symbol, a blinking hourglass, and
all enabled gas sensor readings.
• At the end of the FAS Calibration, the instrument displays "FAS
OK" or "FAS ERR". along with the flags of the sensors that
were outside of the FAS limits. All sensors that are within the
FAS limits will be zeroed.

3.3. Measurement Mode (Normal Operation)

In Normal Operation mode, the user can check the Minimum and Peak
readings prior to clearing the STEL and TWA values or performing a
Span and Zero Calibration.
The following options pages can be executed from the Normal
Operation screen:

Bump Page

This page allows the user to perform a bump check.
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