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Thermo Fisher Scientific
Chapter 3
Operation
The Model 146i can produce accurate gas concentrations by diluting gas
from a gas cylinder or a permeation tube, ozone transfer standard, ozone
calibration, and Gas Phase Titration (GPT). This chapter provides step-by-
step procedures to produce each type of concentration gas, and describes
the following front panel display, front panel pushbuttons, and menu-
driven software. For details, see the following topics:
"Display" on page
●
"Pushbuttons" on page
●
"Software
●
"Operation" on page
●
"Flow
●
"Gas Setup
●
"Ozonator Setup
●
"Permeation Oven Setup
●
"Photometer Setup
●
"Program
●
"Instrument Controls
●
"Diagnostics
●
"Alarms
●
"Service
●
"Password" on page
●
Display
The 320 x 240 graphics liquid-crystal display (LCD) shows the sample
concentrations, instrument parameters, instrument controls, help, and error
messages. Some menus contain more items than can be displayed at one
time. For these menus, use
down to each item.
3-1
3-2
Overview" on page
3-8
Modes" on page
3-9
Menu" on page
3-21
Menu" on page
Menu" on page
Menu" on page
Menu" on page
3-36
Menu" on page
Menu" on page
Menu" on page
3-77
Menu" on page
3-84
3-103
3-4
3-26
3-28
3-30
3-39
3-70
and
to move the cursor up and
Model 146i Instruction Manual
3-1
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Troubleshooting
