Thermo Scientific FTIR User manual

Modular Gas System
USERGUIDE
269-346401B July 2022

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For Research Use Only. This instrument or accessory is not a medical device and is not
intended to be used for the prevention, diagnosis, treatment or cure of disease.
WARNING
Avoid an explosion or fire hazard. This instrument or accessory is
not designed for use in an explosive atmosphere.

Contents
Introduction 1
Using this document 3
Conventions used 4
Site requirements and safety information 5
Operating environment 6
Installation 11
Assemble the rack 12
Replace gas cell fittings 18
Mount the sample probe and particulate filter 20
Connect the Heated Valve Drawer and pressure control system 22
Connect the electrical wiring 30
Install the pressure transducer 32
Turn on the Heated Valve Drawer 34
Operation 35
Manual Pressure Control Configuration 36
Automatic Pressure Control Configuration 42
Using an eductor to generate vacuum 48
Using the temperature controllers 50
Sampling procedure for the Modular Gas System 52
Maintenance 57
Test for leaks 58
Replace the particulate filter 62
Replacing the rear filter 64
Replace water catch filters 67
Replace fuses 69

Clean the flowmeters 71
Clean the FTIR Heated Valve Drawer 72
Replaceable parts 73
Plumbing diagrams 75
Manual Pressure Control System 75
Automatic Pressure Control System 76
Eductor Panel 77

Introduction
The Thermo Scientific™ Modular Gas System includes the FTIR Heated Valve Drawer for convenient
gas selection and gas cell isolation. With the Heated Valve Drawer, you can monitor and control the
temperature, pressure, and flow rate of your gas sample from sample point through the heated gas
cell.
The Modular Gas System is intended to be used with non-flammable and non-oxidizing gases that
are compatible with PTFE, PFA, glass, and stainless steel.
Figure 1-1: The Automated Pressure configuration of the Heated Valve Drawer.
Chapter 1
ThermoScientific Modular Gas System User Guide 1

Introduction
The Modular Gas System includes an open 19” rack mounted system and is designed to be used with
the Thermo Scientific Antaris™ IGS analyzer, or the Nicolet™ iG™50, NicoletiS™50, NicoletiS10, or
NicoletiS20 spectrometers.
SYSTEM OPTIONS
The system accommodates a variety of configurations, including the following options:
lCompatible with Antaris IGS analyzer or a Nicolet spectrometer
lInstalls in a full or half height 19-inch standard rack or table mounted system
lSuitable for open or enclosed racks
The Heated Valve Drawer also supports a variety of configurations of valves, controls, and gas
fittings. This manual describes each of the components available, but your Heated Valve Drawer may
be configured differently to suit your site and sampling requirements.
For additional information about available configurations, contact www.thermofisher.com.
Be sure that all persons operating this system read the site and safety
manual first.
The site and safety guide that came with your analyzer or spectrometer contains important safety
information. Before you use the system, read the entire guide. To prevent personal injury and
damage to equipment, follow the safety precautions contained in the guide whenever you use the
system.
2 Modular Gas System User Guide ThermoScientific

Using this document
This document describes setting up, operating, and maintaining the FTIR Heated Valve Drawer as a
component of the Modular Gas System. Read this manual before you attempt to install or use the
system.
Before using this system, review the Site and Safety information that came with your spectrometer.
See the user guides for your spectrometer and other accessories for additional information.
If you have any questions or concerns after reading this manual, refer to www.thermofisher.com.
ThermoScientific Modular Gas System User Guide 3
Introduction

Introduction
Conventions used
Safety precautions and other important information use the following format:
DANGER
Avoid hazard. Indicates a hazardous situation which, if not avoided, will
result in serious injury or death.
WARNING
Avoid hazard. Indicates a hazardous situation which, if not avoided,
could result in serious injury or death.
CAUTION
Avoid hazard. Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE
Follow instructions with this label to avoid damaging the system hardware or losing data.
Note Contains helpful supplementary information.
4 Modular Gas System User Guide ThermoScientific

Site requirements and safety
information
This chapter contains a summary of safety precautions for using the system. The information in this
guide is a supplement to the site and safety information that came with your instrument and to the
user guide that came with your gas cell, spectrometer or analyzer, and other system components.
See the site and safety guide that came with your system components for additional site
requirements and safety information.
Each person who will be using this device should read this chapter as well as the site and safety
information that came with your other system components.
Operating environment 6
Chapter 2
ThermoScientific Modular Gas System User Guide 5