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Teledyne API Model 100AH SO
2
Analyzer Instruction Manual, 02417, Rev. D
Figure 4-2: Front Panel Display
The display consists of 2 lines of 40 characters each (see Figure 4-2). The top line is divided into
3 fields, and displays information. The first field is the mode field. The mode field indicates the
current mode of the Analyzer. Usually, it shows "SAMPLE", indicating that the instrument is in
sample mode. The center field displays TEST values. The TEST functions allow you to quickly
access many important internal operating parameters of the M100AH. This provides a quick
check on the internal health of the instrument. The right hand field shows current concentration
value of SO
2
.
4.2.5.1 Front Panel Display
The second line of the display contains eight fields. Each field defines the key immediately
below it. By redefining the keys dynamically it is possible to simplify the instrument electronics
and user interface.
4.2.5.2 Status LED's
At the right of the display there are 3 status LED's. They can be in three states, OFF, ON, and
Blinking. The meanings of the LED's are given in Table 4-2.
4-6