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Operation
Software Overview
Power-Up Screen
Run Screen
3-6
Model 42i Trace Level Instruction Manual
The Power-Up screen is displayed on power up of the Model 42i Trace
Level. The Self-Test is displayed while the internal components are
warming up and diagnostic checks are performed.
Please wait while booting...
The Run screen displays the NO, NO
status bar displays optional zero/span solenoid valves, if installed, time, and
alarm status. The word "SAMPLE" on the bottom left of the display
indicates the analyzer has the span/zero valve option and is in "SAMPLE"
mode. Other modes appear in the same area of the display as "ZERO" or
"SPAN". For more information about the optional solenoid valves, see
Chapter 9,
"Optional
Equipment".
When operating in dual or auto range mode two sets of coefficients are
used to calculate the NO-NO
Also, two averaging times are used—one for each range. The title bar
indicates which range concentrations are displayed. The words "LOW
RANGE CONCENTRATION" on the top of the display indicates that
the low concentration is displayed. In dual range mode, pressing the
and
arrows will toggle between high and low concentrations. The
example below shows the Run screen in single range mode.
, and NO
concentrations. The
2
x
-NO
"High" and "Low" concentrations.
2
x
Thermo Fisher Scientific
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Troubleshooting
