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Operation
Firmware Overview
Thermo Fisher Scientific
Model 15
i
Instruction Manual
3-7
When operating in dual or auto range mode, two sets of coefficients are
used to calculate the HCl “High” and “Low” concentrations. 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
following example shows the Run screen in single range mode.
X
CONCENTRATION
W
28.7
PPM
HCl
25.5
PPM
29.2
PPM
SAMPLE 12:34 ALARM
x
RANGE AVG DIAGS ALARM
The Main Menu contains a number of submenus. Instrument parameters
and settings can be read and modified within the submenus according to
their function. The concentration appears above the Main Menu and
submenus in every screen. The Service menu is visible only when the
instrument is in service mode. For more information on the service mode,
see “
Service Mode
” later in this chapter.
●
Use
and
to move the cursor up and down.
●
Press
to make a selection.
●
Press
to return to the Main Menu or
to return to the Run
screen.
Main Menu
Programmable Soft Key Labels
Title Bar
Gas Type
Status Bar
Gas Concentration
Gas Units
Status Bar Icons