3.3.2 Home Screen
The home screen is composed of seven parts: readings (1), error/status line (2), instrument activity
line (3), selection buttons (4), time/date (5), concentration units (6) and USB status (7).
Figure 42 – Home Screen
Readings (1)
Displays the concentration being measured in real-time. The display can be configured to show just
the instantaneous data or the instantaneous and average data (refer to Section 3.4.8 Home Screen).
Error/Status Line (2)
The error/status line provides the users with information on any problems the instrument may have.
It displays the highest priority error or status condition contained in the Status Menu (refer to
Section 3.4.4).
Instrument Activity (3)
This line shows what function the instrument is currently performing. Generally, it will show three
groups of actions: Warm-up, Measurement or Calibration.
Selection Buttons (4)
These buttons are used on the home screen to enter one of two menus. The Quick Menu (refer to
Section 3.4.1) contains all information and features necessary for scheduled maintenance. The Main
Menu (refer to Section 3.4.2) contains all information and fields available to the users and is generally
only used during initial set-up and diagnostics.
Time and Date (5)
The time and date are displayed in between the menu buttons at the bottom of the screen.
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