Power-Up Screen; Run Screen - Thermo Scientific 49i Instruction Manual

Operation
Software Overview

Power-Up Screen

Run Screen

3-6 Model 49i Instruction Manual
The Power-Up screen is displayed on power up of the Model 49i. The
Self-Test is displayed while the internal components are warming up and
diagnostic checks are performed.
The Run screen displays the O
optional sample/cal solenoid valve or internal ozonator, if installed, time,
and alarm status. The word "SAMPLE" on the bottom left of the display
indicates the analyzer has the sample/cal valve option and is in sample
mode. Other modes appear in the same area of the display as "ZERO",
"LEVEL 1", "LEVEL 2", LEVEL 3", "LEVEL 4" or "LEVEL 5." Press
to scroll through sample, zero, or custom levels. For more
information about the optional solenoid valve or internal ozonator, see
Chapter 9, "Optional Equipment".
When operating in dual or auto range mode two sets of coefficients are used
to calculate the O "LOW" and "HIGH" concentrations. Also, two
3
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
will toggle between high and low concentrations. The example below shows
the Run screen in single range mode.
concentration. The status bar displays
3
and
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