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Status bar
The display screen’s status bar indicates
which maintenance procedure is in
progress (bump test utility shown here).
Utility symbols
Bump test utility
Zero utility
Calibration utility
Process in progress
Gas readings area
The gas readings area communicates
information about the process and results
for any maintenance procedures (bump
test utility shown here).
Other symbols
Calibration gas type, unit of measure, and concentration
Results
Passed
Failed
Navigation Bar
The navigation bar provides instruction.
The action displayed on the left is
controlled by the button underneath it, the
power button ; the action on the right is
controlled by the enter button .
Instructional symbols
Cancel the utility (bump test shown here).
Start the utility.
Apply the calibration gas.
Figure 3.2.C Reading the display during maintenance