Thermo Scientific 42i User manual

Model 42i
Instruction Manual
Chemiluminescence NO-NO2-NOxAnalyzer
Part Number 101350-00
25Jul2015

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Thermo Fisher Scientific
Air Quality Instruments
27 Forge Parkway
Franklin, MA 02038
1-508-520-0430
www.thermo.com/aqi

Thermo Fisher Scientific WEEE Compliance
WEEE Compliance
This product is required to comply with the European Union’s Waste
Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is
marked with the following symbol:
Thermo Fisher Scientific has contracted with one or more
recycling/disposal companies in each EU Member State, and this product
should be disposed of or recycled through them. Further information on
Thermo Fisher Scientific’s compliance with these Directives, the recyclers
in your country, and information on Thermo Fisher Scientific products
which may assist the detection of substances subject to the RoHS Directive
are available at: www.thermo.com/WEEERoHS.

Thermo Fisher Scientific Reference Method Designation
Reference Method Designation
The Thermo Scientific Model 42iis designated by the United States
Environmental Protection Agency (US EPA) as a Reference Method for the
measurement of ambient concentrations of nitrogen dioxide pursuant with
the requirements defined in the Code of Federal Regulations, Title 40, Part
53.
Designated Reference Method Number: RFNA-1289-074
EPA Designation Date: December 11, 1989 (amended for Model 42i)
The Model 42iChemiluminescence NO-NO2-NOxAnalyzer meets EPA
reference designation requirements when operated with the following:
Range 50 to 1000 ppb
Averaging Time 10 to 300 seconds
Temperature Range 15 to 35 C
Line Voltage 90 to 110 Vac @50/60 Hertz
105 to 125 Vac @50/60 Hertz
210 to 250 Vac @50/60 Hertz
Pressure Compensation ON or OFF
Temperature Compensation ON or OFF
Flow Rate 0.5 to 1 LPM
RS-232/RS-485 Interface
With or without the following options:
Teflon Particulate Filter
Ozone Particulate Filter
Internal Zero/Span and Sample Valves
Ozone Permeation Dryer
Permeation Oven
Rack Mounts
I/O Expansion Board

Thermo Fisher Scientific Model 42iInstruction Manual i
About This Manual
This manual provides information about operating, maintaining, and
servicing the analyzer. It also contains important alerts to ensure safe
operation and prevent equipment damage. The manual is organized into
the following chapters and appendixes to provide direct access to specific
operation and service information.
●Chapter 1 “Introduction” provides an overview of product features,
describes the principles of operation, and lists the specifications.
●Chapter 2 “Installation” describes how to unpack, setup, and startup
the analyzer.
●Chapter 3 “Operation” describes the front panel display, the front
panel pushbuttons, and the menu-driven software.
●Chapter 4 “Calibration” provides the procedures for calibrating the
analyzer and describes the required equipment.
●Chapter 5 “Preventive Maintenance” provides maintenance procedures
to ensure reliable and consistent instrument operation.
●Chapter 6 “Troubleshooting” presents guidelines for diagnosing
analyzer failures, isolating faults, and includes recommended actions for
restoring proper operation.
●Chapter 7 “Servicing” presents safety alerts for technicians working on
the analyzer, step-by-step instructions for repairing and replacing
components, and a replacement parts list. It also includes contact
information for product support and technical information.
●Chapter 8 “System Description” describes the function and location of
the system components, provides an overview of the software structure,
and includes a description of the system electronics and input/output
connections.
●Chapter 9 “Optional Equipment” describes the optional equipment
that can be used with this analyzer.
●Appendix A “Warranty” is a copy of the warranty statement.
●Appendix B “C-Link Protocol Commands” provides a description of
the C-Link protocol commands that can be used to remotely control an
analyzer using a host device such as a PC or datalogger.

About This Manual
Safety
ii Model 42iInstruction Manual Thermo Fisher Scientific
●Appendix C “MODBUS Protocol” provides a description of the
MODBUS Protocol Interface and is supported both over RS-232/485
(RTU protocol) as well as TCP/IP over Ethernet.
●Appendix D “Geysitech (Bayern-Hessen) Protocol” provides a
description of the Geysitech (Bayern-Hessen or BH) Protocol Interface
and is supported both over RS-232/485 as well as TCP/IP over
Ethernet.
Review the following safety information carefully before using the analyzer.
This manual provides specific information on how to operate the analyzer,
however, if the analyzer is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
This manual contains important information to alert you to potential safety
hazards and risks of equipment damage. Refer to the following types of
alerts you may see in this manual.
Safety and Equipment Damage Alert Descriptions
Alert Description
DANGER A hazard is present that could result in death or serious
personal injury if the warning is ignored. ▲
WARNING A hazard or unsafe practice could result in serious
personal injury if the warning is ignored. ▲
CAUTION A hazard or unsafe practice could result in minor to
moderate personal injury if the warning is ignored. ▲
Equipment Damage A hazard or unsafe practice could result in property
damage if the warning is ignored. ▲
Safety
Safety and Equipment
Damage Alerts

About This Manual
Safety and Equipment Damage Alerts
Thermo Fisher Scientific Model 42iInstruction Manual iii
Safety and Equipment damage Alerts in this Manual
Alert Description
WARNING If the equipment is operated in a manner not specified by
the manufacturer, the protection provided by the
equipment may be impaired. ▲
The service procedures in this manual are restricted to
qualified service personnel only. ▲
The Model 42iis supplied with a three-wire grounding
cord. Under no circumstances should this grounding
system be defeated. ▲
CAUTION If the LCD panel breaks, do not to let the liquid crystal
contact your skin or clothes. If the liquid crystal contacts
your skin or clothes, wash it off immediately using soap
and water. ▲
Equipment Damage Do not attempt to lift the analyzer by the cover or other
external fittings. ▲
Some internal components can be damaged by small
amounts of static electricity. A properly ground antistatic
wrist strap must be worn while handling any internal
component. ▲
This adjustment should only be performed by an
instrument service technician. ▲
Handle all printed circuit boards by the edges only. ▲
Do not remove the panel or frame from the LCD module.
▲
The LCD module polarizing plate is very fragile, handle it
carefully. ▲
Do not wipe the LCD module polarizing plate with a dry
cloth, it may easily scratch the plate. ▲
Do not use Ketonics solvent or aromatic solvent to clean
the LCD module, use a soft cloth moistened with a
naphtha cleaning solvent. ▲
Do not place the LCD module near organic solvents or
corrosive gases. ▲
Do not shake or jolt the LCD module. ▲

About This Manual
FCC Compliance
iv Model 42iInstruction Manual Thermo Fisher Scientific
Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
Note This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own
expense. ▲
The following symbol and description identify the WEEE marking used on
the instrument and in the associated documentation.
Symbol Description
Marking of electrical and electronic equipment which applies to waste
electrical and electronic equipment falling under the Directive 2002/96/EC
(WEEE) and the equipment that has been put on the market after 13 August
2005. ▲
Service is available from exclusive distributors worldwide. Contact one of
the phone numbers below for product support and technical information
or visit us on the web at www.thermo.com/aqi.
1-866-282-0430 Toll Free
1-508-520-0430 International
FCC Compliance
W
EEE Symbol
W
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