Thermo 42i - Chapter 3 Operation

Thermo Electron Corporation Model 42i Low Source Instruction Manual 3-1
Chapter 3 Operation
This chapter describes the front panel display, front panel pushbuttons, and
menu-driven software.
• “Display” on page 3-2 describes the LCD graphics display.
• “Pushbuttons” on page 3-3 describes the various front panel
pushbuttons and the expected key actions for each.
• “Software Overview” on page 3-4 describes the menu-driven software
and submenus.
• “Range Menu” on page 3-8 describes the gas units, NO- NO
2
-NO
x
ranges, and custom ranges.
• “Averaging Time” on page 3-17 describes the averaging period applied
to NO, NO
2
, and NO
x
measurements.
• “Calibration Factors Menu” on page 3-18 describes the calibration
factors used to correct NO, NO
2
, and NO
x
measurement readings.
• “Calibration Menu” on page 3-23 describes calibration of zero and span.
• “Instrument Controls Menu” on page 3-30 describes the instrument
hardware control and configuration.
• “Diagnostics Menu” on page 3-65 describes the diagnostic information
and functions.
• “Alarms Menu” on page 3-73 describes a list of items that are monitored
by the analyzer.
• “Service Menu” on page 3-82 describes service related menu items.
• “Password” on page 3-97 describes how to enter/change a password,
lock and unlock the instrument.