Thermo Scientific 48i User manual

Model 48i
Instruction Manual
Gas Filter Correlation CO Analyzer
Part Number 101891-00
10Aug2017

© 2007 Thermo Fisher Scientific Inc. All rights reserved.
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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 WEEE Compliance
Reference Method Designation
The Thermo Scientific Model 48iis designated by the United States
Environmental Protection Agency (USEPA) as a Reference Method for CO
as set forth in the U.S. Environmental Protection Agency regulations at
Title 40, Part 53 of the U.S. Code of Fereral Regulations.
Designated Reference Method Number: RFCA-0981-054
EPA Designation Date: September 23, 1981 (amended for Model 48i)
The Model 48iCO Analyzer meets EPA reference designation
requirements when operated with the following:
Range 0-1 to 100 ppm
Averaging Time 10 to 300 seconds
Temperature Range 20 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 2 L/min
RS-232/RS-485 Interface
With or without the following options:
Teflon Particulate Filter
Internal Zero/Span and Sample Valves
Internal Zero Air Scrubber
Rack Mounts
I/O Expansion Board

Thermo Fisher Scientific Model 48iInstruction Manual i
About This Manual
This manual provides information about installing, operating, maintaining,
and servicing the Model 48iCO gas analyzer. It also contains important
alerts to ensure safe operation and prevent equipment damage. The manual
is organized into the following chapters and appendices 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 firmware.
●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 firmware 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 48iInstruction 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 “Gesytec (Bayern-Hessen) Protocol” provides a
description of the Gesytec (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 and Equipment Damage Alerts in this Manual
Alert Description
WARNING The Model 48iis supplied with a three-wire grounded
power cord. Under no circumstances should this
grounding system be defeated. ▲
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. ▲
Safety
Safety and Equipment
Damage Alerts

About This Manual
FCC Compliance
Thermo Fisher Scientific Model 48iInstruction Manual iii
Alert Description
CAUTION If the LCD panel breaks, do not 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. ▲
Disconnect the serial cable before changing RS-232 and
RS-485 selection to prevent damage to any equipment
currently connected to the analyzer. ▲
Some internal components can be damaged by small
amounts of static electricity. A properly grounded
antistatic wrist strap must be worn while handling any
internal component. ▲
Do not use solvents or other cleaning products to clean
the outside case. ▲
Do not remove the LCD panel or frame from the LCD
module. ▲
The LCD polarizing plate is very fragile, handle it
carefully. ▲
Do not wipe the LCD polarizing plate with a dry cloth, as
it may easily scratch the plate. ▲
Do not use alcohol, acetone, MEK or other ketone based
or aromatic solvent to clean the LCD module, but rather
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. ▲
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 within 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
FCC Compliance

About This Manual
WEEE Symbol
iv Model 48iInstruction Manual Thermo Fisher Scientific
which case the user will be required to correct the interference at his or her
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
W
EEE Symbol
W
here to Get Help