Endress+Hauser SS2100i-2 User manual

Products Solutions Services
Operating Instructions
SS2100i-2 TDLAS Gas Analyzer
ATEX/IECEx: Zone 1
BA02197C/66/EN/02.23
70210290

Operating Instructions SS2100i-2 TDLAS Gas Analyzer
2 Endress+Hauser

SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 3
Table of Contents
1About this document............................ 4
1.1 Warnings..................................................................4
1.2 Symbols on the device.............................................4
1.3 U.S. export compliance ...........................................4
1.4 Standard documentation........................................4
2Introduction .......................................... 6
2.1 How to use this manual..........................................6
2.2 General warnings and cautions .............................6
2.3 Manufacturer address ............................................8
2.4 About the gas analyzers .........................................9
2.5 Getting familiar with the analyzer ......................12
3Safety...................................................24
3.1 Potential risks affecting personnel .....................24
3.2 Explosion hazard...................................................24
4Installation..........................................25
4.1 What should be included in the shipping box....25
4.2 Lifting/carrying the analyzer...............................25
4.3 Inspecting the analyzer ........................................25
4.4 Hardware and tools for installation ....................26
4.5 Mounting the analyzer .........................................26
4.6 Protective chassis ground connections ...............26
4.7 Opening the analyzer enclosure covers ..............27
4.8 Cable installation ..................................................27
4.9 Cable glands...........................................................27
4.10 Connecting the solenoid valves ...........................28
4.11 Application of gland lubricant .............................31
4.12 Connecting the signals and alarms.....................32
4.13 Configuring the RS-232/RS-485 converter........34
4.14 Connecting electrical power to the analyzer......34
4.15 Connecting the gas lines ......................................36
4.16 Changing the 4-20 mA current loop mode ........37
5Specifications...................................... 39
5.1 Exd accessory conditions of use ..........................40
6Maintenance and troubleshooting... 42
6.1 Gas leaks ................................................................42
6.2 Excessive sampling gas temperatures and
pressures................................................................42
6.3 Electrical noise ......................................................42
6.4 Contamination ......................................................42
6.5 Cleaning the mirrors.............................................43
6.6 Replacing the pressure sensor.............................47
6.7 Flame arrestor replacement and safety .............56
6.8 Peak tracking reset procedure.............................59
6.9 Instrument issues..................................................59
6.10 Service ....................................................................61
6.11 Service repair order...............................................61
6.12 Packing, shipping, and storage ...........................61
6.13 Storage ...................................................................62
6.14 Disclaimers ............................................................62
6.15 Warranty................................................................62
7Analyzer parts .................................... 63
8Wiring diagrams................................. 72

Operating Instructions SS2100i-2 TDLAS Gas Analyzer
4 Endress+Hauser
1About this document
1.1 Warnings
Structure of Information
Meaning
WARNING
Causes (/consequences)
If necessary, consequences of non-compliance
(if applicable)
‣ Corrective action
This symbol alerts you to a dangerous situation. Failure to avoid the dangerous
situation can result in a fatal or serious injury.
CAUTION
Causes (/consequences)
If necessary, consequences of non-compliance
(if applicable)
‣ Corrective action
This symbol alerts you to a dangerous situation. Failure to avoid this situation
can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, consequences of non-compliance
(if applicable)
‣ Action/note
This symbol alerts you to situations which may result in damage to property.
Table 1. Warnings
1.2 Symbols on the device
Symbol
Description
The Laser Radiation symbol is used to alert the user to the danger of exposure to hazardous visible laser radiation
when using the analyzer.
The High Voltage symbol that alerts people to the presence of electric potential large enough to cause injury or
damage. In certain industries, high voltage refers to voltage above a certain threshold. Equipment and conductors that
carry high voltage warrant special safety requirements and procedures.
The ETL Listed Mark provides proof of product compliance with North American safety standards. Authorities Having
Jurisdiction (AHJ) and code officials across the US and Canada accept the ETL Listed Mark as proof of product
compliance to published industry standards.
The WEEE symbol indicates that the product should not be discarded as unsorted waste but must be sent to separate
collection facilities for recovery and recycling.
The CE Marking indicates conformity with health, safety, and environmental protection standards for products sold
within the European economic area (EEA).
Table 2. Symbols
1.3 U.S. export compliance
The policy of Endress+Hauser is strict compliance with U.S. export control laws as detailed on the website of the
Bureau of Industry and Security at the U.S. Department of Commerce.
1.4 Standard documentation
All documentation is available:
•On the USB provided with the analyzer
•Endress+Hauser’s website: www.endress.com
Each analyzer shipped from the factory is packaged with documents specific to the model that was purchased. This
document is an integral part of the complete document package, which also includes:

SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 5
Part Number
Document Type
Description
TI01670C
SS2100i-2 Technical
Information
Planning aid for your device. This document contains information for the analyzer
including system design with sample conditioning components and inlet/outlet
points, certificates and approvals, and product technical data.
XA02694C
SS2100i-2 Safety
Instructions
Requirements for installing or operating the SS2100i-2 TDLAS Gas Analyzer
related to personnel or equipment safety.
GP01180C
Description of Device
Parameters (NS 5.14)
Provides the user with an overview of the NS 5.14 firmware functionality.
For additional instruction manuals, please refer to the following:
•For custom orders, go to the Endress+Hauser website for the list of local sales channels who can provide the
requested order-specific documentation:
https://endress.com/contact
or
https://addresses.endress.com/
•For standard orders, go to the Endress+Hauser website to download the published documentation:
www.endress.com

Operating Instructions SS2100i-2 TDLAS Gas Analyzer
6 Endress+Hauser
2Introduction
Endress+Hauser SS2100i-2 products use SpectraSensors TDLAS technology and are high-speed, diode-laser based
extractive analyzers designed for extremely reliable monitoring of very low (trace) to standard concentrations of
specific components in various background gases. To ensure that the analyzer performs as specified, it is important
to closely review the sections of this manual. This manual contains a comprehensive overview of the SS2100i-2
analyzer and step-by-step instructions for:
•Inspecting the analyzer
•Mounting and installing the analyzer
•Troubleshooting the system
2.1 How to use this manual
Take a moment to familiarize yourself with this Operating Instruction by reading the "Table of Contents".
Some options and accessories are available for the SS2100i-2 analyzers. This manual addresses the most common
options and accessories.
Images, tables, and charts are included to provide a visual understanding of the analyzer and its functions. Special
symbols are used to provide the user with key information regarding the system configuration and/or operation. Pay
close attention to this information.
2.1.1 Who should read this manual
This manual should be read and referenced by anyone installing, operating, or having direct contact with the
analyzer.
2.1.2 Conventions used in this manual
In addition to the symbols and instructional information, this manual is created with “hot links” to enable the user to
quickly navigate between different sections within the manual. These links include table, figure and section
references and are identified by a pointing finger cursor when rolling over the text. Simply click on the link to
navigate to the associated reference.
2.2 General warnings and cautions
Instructional icons are provided in this manual and on the SS2100i-2 unit to alert the user of potential hazards,
important information and valuable tips. Following are the symbols and associated warning and caution types to
observe when servicing the analyzer. Some of these symbols are provided for instructional purposes only and are not
labeled on the system.
2.2.1 Safety warning label
The warning label shown below will be affixed to the front side of all analyzer enclosures that contain sample gas.

SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 7
Hazards may vary by stream composition. One or more of the following conditions may apply.
Symbol
Description
Flammable. Gases used in the processing of this analyzer may be extremely flammable. Any work in a hazardous
area must be carefully controlled to avoid creating any possible ignition sources (e.g., heat, arcing, sparking, etc.).
Toxins. Endress+Hauser analyzers measure a variety of gases, including high-level H2S. Follow all safety protocols
governing toxic gases and potential leaks.
Inhalation. Inhaling toxic gases or fumes may cause physical damage or death.
CAUTION
Technicians are expected to follow all safety protocols established by the customer that are necessary for
servicing or operating the analyzer. This may include, but is not limited to, lockout/tagout procedures, toxic gas
monitoring protocols, personal protective equipment (PPE) requirements, hot work permits and other
precautions that address safety concerns related to performing service or operation on process equipment
located in hazardous areas.
2.2.2 Equipment labels
Symbol
Description
Warning statement for hazardous voltage. Contact may cause electric shock or burn. Turn off and lock out system
before servicing.
Failure to follow all directions may result in damage or malfunction of the analyzer.
Maximum voltage and current specifications for the fuse closest to label.
PROTECTIVE EARTH GROUND —Symbol indicates the connection point of the ground wire from the main power
source.
FUNCTIONAL EARTH GROUND —Symbol indicates grounding points intended primarily for troubleshooting.
2.2.3 Instructional symbols
Symbol
Description
General notes and important information concerning the installation and operation of the analyzer.
Failure to follow all directions may result in fire.
INVISIBLE LASER RADIATION —Avoid exposure to beam. Class 3b Radiation Product. Refer servicing to the
manufacturer-qualified personnel.
Failure to follow all directions may result in damage or malfunction of the analyzer.
Maximum voltage and current specifications for fuses.

Operating Instructions SS2100i-2 TDLAS Gas Analyzer
8 Endress+Hauser
2.2.4 Special safety symbols used on the equipment
Special safety symbols and labeling are used on the equipment to alert the user to potential hazards and important
information associated with the analyzer. Every symbol and label has significant meaning that should be heeded.
Symbol
Description
ENERGIZED FUSE WARNING —Do not remove or replace fuse when energized.
INVISIBLE LASER RADIATION —Avoid exposure to beam. Class 3b Radiation Product. Refer
servicing to the manufacturer or qualified personnel.
DO NOT REMOVE —Removal of the seal and/or disassembly of pieces traversed by label voids
the warranty.
CLASS 1 LASER PRODUCT —Invisible laser radiation when open. Avoid direct exposure to the
beam.
CLASS 3B LASER PRODUCT —Invisible laser radiation. Avoid direct exposure to beam. Class 3b
laser product.
CLASS 3B LASER WARNING —Class 3B invisible laser radiation when open. Avoid direct
exposure to the beam.
2.3 Manufacturer address
Endress+Hauser
11027 Arrow Route
Rancho Cucamonga, CA 91730
United States
www.endress.com

SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 9
2.4 About the gas analyzers
Endress+Hauser SS2100i-2 analyzers employ SpectraSensors tunable diode laser absorption spectroscopy (TDLAS) to
measure the concentration of single compounds in gas mixtures. The tunable diode laser (TDL) absorption
spectrometers in the SS2100i-2 operate in the near- to short-wavelength infrared. Each compact sensor consists of a
TDL laser light source, sample cell, and detector configured for high sensitivity measurement of a particular
component within the gas-phase constituents in the stream. The sensor is controlled by microprocessor-based
electronics with embedded software that incorporates advanced operational and data processing algorithms.
In its simplest form, a diode laser absorption spectrometer typically consists of a sample cell with a mirror at one end,
and a mirror or window at the opposite end, through which the laser beam can pass, as shown in the figure below.
The laser beam enters the cell and reflects off the mirror(s) making one or more trips through the sample gas and
eventually exiting the cell where the remaining beam intensity is measured by a detector. With the SS2100i-2
analyzers, sample gas flows continuously through the sample cell ensuring that the sample is always representative
of the flow in the main pipe.
0.8 m cell
8 or 28 m cell
Figure 1. Schematic of a typical tunable diode laser absorption spectrometer
1. Laser 5. Detector
2. Pressure sensor 6. Window/near mirror
3. Outlet 7. Inlet
4. Optical head 8. Far mirror
Due to their inherent structure, the molecules in the sample gas each have characteristic natural frequencies (or
resonances). When the output of the laser is tuned to one of those natural frequencies, the molecules with that
resonance will absorb energy from the incident beam. That is, as the beam of incident intensity, I0(),passes through
the sample, attenuation occurs via absorption by the trace gas with absorption cross section (). According to the
Beer-Lambert absorption law, the intensity remaining, I(), as measured by the detector at the end of the beam path
of length / (cell length x number of passes), is given by
󰇛󰇜 󰇛󰇜󰇟󰇛󰇜󰇠
where Nrepresents the species concentration. Thus, the ratio of the absorption measured when the laser is tuned on-
resonance versus off-resonance is directly proportional to the number of molecules of that species in the beam path,
or
4
15
6
7
2
83
4
1 5
6
7
2
3 8

Operating Instructions SS2100i-2 TDLAS Gas Analyzer
10 Endress+Hauser
N= 
󰇛󰇜󰇣󰇛󰇜 󰇛󰇜󰇤
Figure 3 below shows the typical raw data from a laser absorption spectrometer scan including the incident laser
intensity, I0(), and the transmitted intensity, I(l), for a clean system and one with contaminated mirrors (shown to
illustrate the system’s relative intensity to mirror contamination).
Fig 2. Typical raw signal from a laser diode absorption spectrometer with and without mirror contamination
A. Resonance absorption Blue line: raw signal, I (l)
B. Red line: incident energy I0(l) Green line: raw signal, I (l) (contaminated mirrors)
The positive slope of raw data results from ramping the current to tune the laser, which not only increases the
wavelength with current, but also causes the corresponding output power to increase. By normalizing the signal by
the incident intensity, any laser output fluctuations are canceled, and a typical, yet more pronounced, absorption
profile results, as shown in figure 4 below.
Fig 3. Typical normalized signal from a laser diode absorption spectrometer
Contamination of the mirrors results solely in lower overall signal. However, by tuning the laser off-resonance as
well as on-resonance and normalizing the data, the technique self-calibrates every scan resulting in measurements
that are unaffected by mirror contamination.
Wavelength [a.u.]
Wavelength [a.u.]
1.0
0.99
0.98
0.97
0.96
0.95
Wavelength [a.u.]
Signal [a.u.]
3.0
2.5
2.0
1.5
1.0
0.5
0.0
A