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5.2 MENU OVERVIEW
Note a Menu Flow Chart is available in section 9.
5.2.1 Menu System
– Normal Operation
Upon startup, a brief splash screen is shown on the display which includes the Armstrong
Monitoring Co
rp’s logo and the current version of the firmware. After a couple of seconds, the
display will update to display the main info screen as shown below. NOTE: The bar graphs
indicating the gas concentration are not visible while the sensor modules are warming up.
The warm-up period will be shown in the details section for the selected sensor until the
warm-up period expires.
As shown above, two sensors are currently attached to the transmitter. Only one sensor can be
selected at a time for the purpose of inspecting its details. Use the
UP and DOWN buttons to
navigate between each sensor. The following diagram illustrates the main info screen after
pressing the
DOWN button from the previous display. Notice how the details are updated to
reflect the newly selected sensor.
After a programmed timeout period without any button presses, the display will go blank (screen
saver mode). To re-enable the display, simply press the
ENTER button.
5.2.2 Menu System
– Failed Sensor
In the event of a failed sensor, the bar graph is replaced with a large FAIL indication and the
detailed description is updated accordingly. If the sensor fails while the display is OFF, the display
will immediately turn ON and the failed sensor will be selected by default. In addition, the FAIL
indication will toggle between normal and inverse
‘white space’ mode at a rate of once per second
as shown below.
ar on ono ide
1 . 5
ighlighted ac ground indicates hich sensor is currentl selected
etails pertaining to the selected sensor its current value and long name
availa le on 1 onl .
itrogen io ide
.615
ighlighted ac ground indicates hich sensor is currentl selected
etails pertaining to the selected sensor its current value and long name
availa le on 1 onl .