Endress+Hauser SpectraSensors SS2100i-1 User manual

Products Solutions Services
Operating Instructions
SS2100i-1 TDLAS Gas Analyzer
ATEX/IECEx/UKEX: Zone 1
BA02189C/66/EN/02.23
70207462

Operating Instructions SS2100i-1 TDLAS Gas Analyzer
2 Endress+Hauser

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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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
2Introduction .......................................... 5
2.1 How to use this manual..........................................5
2.2General warnings and cautions .............................5
2.3 Manufacturer address ............................................7
2.4 About the gas analyzers .........................................7
2.5 How the analyzers work .........................................8
2.6Differential TDLAS ..................................................9
2.7 Getting familiar with the SS2100i-1...................10
3Safety...................................................18
3.1 Potential risks affecting personnel .....................18
4Installation..........................................19
4.1 What should be included in the shipping box....19
4.2 Inspecting the analyzer ........................................19
4.3 Hardware and tools for installation ....................19
4.4 Mounting the analyzer .........................................20
4.5 Opening and closing analyzer enclosure cover ..20
4.6 Connecting the solenoid valves ...........................21
4.7 Connecting electrical power to the analyzer ......25
4.8 Connecting the signals and alarms .....................27
4.9 Configuring the RS-232/RS-485 converter........29
4.10 Connecting the gas lines ......................................29
4.11 Changing the 4-20 mA current loop mode ........30
5Appendix A: Specifications................ 31
5.1 SS2100i-1 analyzer specifications ......................31
5.2 Exd accessory conditions of use ..........................32
6Appendix B: Maintenance and
troubleshooting.................................. 34
6.1 Gas leaks ................................................................34
6.2 Excessive gas temperatures and pressures ........34
6.3 Electrical noise ......................................................34
6.4 Contamination ......................................................34
6.5 Cleaning the mirrors.............................................35
6.6 Pressure sensor replacement...............................41
6.7 Flame arrestor replacement and safety .............45
6.8 Potential health effects ........................................47
6.9 Peak tracking reset procedure.............................48
6.10 Instrument problems ............................................48
6.11 Service ....................................................................50
6.12 Packing, shipping, and storage ...........................50
6.13 Storage ...................................................................51
6.14 Disclaimers ............................................................51
6.15 Warranty................................................................51
7Appendix C: Analyzer parts............... 52
8Appendix D: Wiring diagrams........... 60

Operating Instructions SS2100i-1 TDLAS Gas Analyzer
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1About this document
1.1 Warnings
Structure of Information
Meaning
Causes (/consequences)
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.
Causes (/consequences)
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.
Cause/situation
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 and invisible 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 in strict compliance with U.S. export control laws as detailed in the website of the
Bureau of Industry and Security at the U.S. Department of Commerce.

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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2Introduction
The Endress+Hauser SS2100i-1 product is a high-speed, diode laser-based extractive analyzer designed for reliable
monitoring of very low (trace) to standard concentrations of specific components in various background gases. It is
important to closely review the installation and operation sections of this manual to ensure the analyzer performs as
specified. This manual contains a comprehensive overview of the SS2100i-1 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-1 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 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-1 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.
Figure 1. Safety warning label

Operating Instructions SS2100i-1 TDLAS Gas Analyzer
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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.
Table 3. Safety warnings
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/tag-out 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.
Table 4. Equipment labels
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.
Table 5. Instructional symbols

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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.
Table 6. Special safety symbols
2.3 Manufacturer address
Endress+Hauser
11027 Arrow Route
Rancho Cucamonga, CA 91730
United States
www.endress.com
2.4 About the gas analyzers
The SS2100i-1 analyzers are tunable diode laser (TDL) absorption spectrometers operating in the near- to short-
wavelength infrared. Each compact sensor consists of a TDL light source, sample cell, and detector specifically
configured to enable high sensitivity measurement of a particular component within the presences of other 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.
2.4.1 Sample conditioning system
The analyzer may be integrated with a sample conditioning system (SCS) that is specifically designed to meet the
sample condition requirements for the analyzer while preserving sample integrity and minimizing sample lag time.
Refer to the SCS Operating Instruction for more information.
2.4.2 Determining firmware version
When the analyzer is powered on for the first time, the firmware version will display on the system LCD for
approximately seven seconds. Refer to Powering Up the Analyzer in the Description of Device Parameters for this
analyzer for operational instructions. The firmware version for each analyzer is also listed on the analyzer calibration
certificate.

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2.5 How the analyzers work
The SS2100i-1 analyzers employ tunable diode laser absorption spectroscopy (TDLAS) to measure the concentration
of single compounds in gas mixtures. 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. Refer to Figure 2. 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-1 analyzers, sample gas flows continuously through the sample cell ensuring that the
sample is always representative of the flow in the main pipe.
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
particular 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 I() = I0()exp–()lN, 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 particular species in the beam path, or
(1)
Figure 3 shows the typical raw data from a laser absorption spectrometer scan including the incident laser intensity,
I0(), and the transmitted intensity, I(), for a clean system and one with contaminated mirrors (shown to illustrate
the system’s relative intensity to mirror contamination). 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. Refer to Figure 4.
Figure 2. Schematic of a typical tunable diode laser absorption spectrometer
Note that 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.

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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Figure 3. Typical raw signal from a laser diode absorption spectrometer with and without mirror contamination
Figure 4. Typical normalized absorption signal from a laser diode absorption spectrometer
2.6 Differential TDLAS
Similar to TDLAS, this technology involves subtracting two spectrums from one another. A “dry” spectrum, a
response from the sample when the analyte of interest has been completely removed, is subtracted from the “wet”
spectrum, a response from the sample when the analyte is present. The remainder is a spectrum of the pure analyte.
This technology is used for very low or trace measurements and is also useful when the background matrix changes
over time.
2.6.1 Wavelength modulation spectroscopy (WMS) signal detection
Endress+Hauser takes the fundamental absorption spectroscopy concept a step further by using a sophisticated
signal detection technique called wavelength modulation spectroscopy (WMS). When employing WMS, the laser
drive current is modulated with a kHz sine wave as the laser is rapidly tuned. A lock-in amplifier is then used to
detect the harmonic component of the signal that is at twice the modulation frequency (2f), as shown in Figure 5.
This phase-sensitive detection enables the filtering of low-frequency noise caused by turbulence in the sample gas,
temperature and/or pressure fluctuations, low-frequency noise in the laser beam or thermal noise in the detector.
Figure 5. Typical normalized 2f signal; species concentration is proportional to the peak height

Operating Instructions SS2100i-1 TDLAS Gas Analyzer
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With the resulting low-noise signal and use of fast post-processing algorithms, reliable parts per million (ppm) or
parts per billion (ppb) detection levels are possible (depending on target and background species) at real-time
response rates (on the order of 1 second).
All Endress+Hauser TDLAS gas analyzers employ the same design and hardware platform. Measuring different trace
gases in various mixed hydrocarbon background streams is accomplished by selecting a different optimum diode
laser wavelength between 700 to 3000 nm, which provides the least amount of sensitivity to background stream
variations.
2.7 Getting familiar with the SS2100i-1
The SS2100i-1 consists of a single enclosure containing two electrical assembly panels. Figure 6 shows the front,
rear, and bottom of the analyzer.
Figure 6. External features of the analyzer
Only compound barrier seal glands (known as potted glands) should be installed on this system.
On the front cover, the keypad and LCD display serve as the user interface to the analyzer. Power and signal
connections are made via access ports on the bottom of the analyzer. Tube fittings on the right side are for sample
supply and return connections. Four sturdy feet on the back of the enclosure serve as attachment points for
mounting the analyzer.
The upper and lower levels for the analyzer are shown in Figure 7 (8/28 m sample cell), Figure 8 (0.8 m sample cell),
or Figure 9 (0.1 m sample cell). The top level is the electronics panel assembly, shown in Figure 10, The lower level is
the sample cell panel assembly shown in Figure 11 (8/28 m sample cell), Figure 12 (0.8 m sample cell), or Figure 13
(0.1 m sample cell).

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Figure 7. Upper and lower levels of analyzer assembly (8/28 m sample cell)
Figure 8. Upper and lower levels of analyzer assembly (0.8 m sample cell)

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Figure 9. Upper and lower levels of analyzer assembly (0.1 m sample cell)
Figure 10. Components on electronics panel assembly (upper level)

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Figure 11. Components on sample cell panel assembly (8/28 m sample cell) (lower level)
Figure 12. Components on sample cell panel assembly (0.8 m sample cell) (lower level)

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Figure 13. Components on sample cell panel assembly (0.1 m sample cell) (lower level)
On the upper level (electronics panel assembly), the analyzer power supply provides power to the analyzer control
electronics and relays controlling valves. The analyzer control electronics drive the laser, collect the signal and
analyze the spectra. Powered relays control valves while unpowered relays serve as alarm contacts. An AC line filter
is used to condition the input power.
The relay control board serves as the interface between the analyzer control electronics and the relays whereas the
temperature control board controls the thermo-electric (TEC) cooler that maintains the laser temperature inside the
sample cell optical head. An optically-isolated RS-232 to RS-422/485 converter takes the inherent RS-232 serial
output of the laser control electronics and converts it to RS-485.
The auxiliary switch-mode power supply provides power to the heater temperature controller (located on the bottom
level) and the RS-232/RS-485 converter. The power supply is rated for 1.3 A at 24 VDC output at ambient
temperatures Ta60 ºC. For higher temperatures 60 ºC Ta70 ºC, the output power is reduced by 2.5%/ºC. The
operational state is indicated by LEDs on the front face, where green means the output voltage is on and within
specification, and red means the output voltage is on but below specification.
The thermostat in the upper left corner prevents the temperature inside the enclosure from getting too hot. The
thermostat is preset at the factory to open the heater circuit if the temperature inside the analyzer enclosure exceeds
70  4 C. The heater circuit will remain open until the manual reset button (located between the two wire terminals)
on the thermostat is pressed or the temperature drops approximately 30% below the setpoint.
A DIN rail at the bottom of the upper level holds fused terminal blocks, the main breaker, and terminal blocks for all
external connections.
On the lower level, the measurement cell is the actual TDLAS spectrometer through which the gas sample flows. The
measurement cell is equipped with a pressure sensor and thermistor to monitor the thermodynamic conditions of the
sample. A heater maintains the inside of the analyzer enclosure at a constant temperature and is controlled by the
temperature controller via the solid-state relay.
See Figure 10 to locate fuses. If you need to replace a fuse, use only the same type and rating of fuse as the
original as listed in Table 7 or Table 8. For re-order part numbers, refer to Appendix C → .

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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Drawing Reference
Description
Rating
F3
Miniature fuse, 5 x 20 mm, time delay
250 VAC/1.6 A
F41
Miniature fuse, 5 x 20 mm, time delay
250 VAC/0.5 A
F51, F61, F71, F81
Miniature fuse, 5 x 20 mm, time delay
250 VAC/0.1 A
F9 1
Miniature fuse, 5 x 20 mm, time delay
250 VAC/1.0 A
F10 1
Miniature fuse, 5 x 20 mm, time delay
250 VAC/1.2 A
Table 7. Fuse specifications for 240 VAC systems
1
Housed in fused terminal blocks. Illuminated LED indicates blown fuse.
Drawing Reference
Description
Rating
F3
Miniature fuse, 5 x 20 mm, time delay
250 VAC/1.6 A
F41
Miniature fuse, 5 x 20 mm, time delay
250 VAC/0.5 A
F51, F61, F71, F81
Miniature fuse, 5 x 20 mm, time delay
250 VAC/0.1 A
F9 1
Miniature fuse, 5 x 20 mm, time delay
250 VAC/1.0 A
F10 1
Miniature fuse, 5 x 20 mm, time delay
250 VAC/2.0 A
Table 8. Fuse specifications for 120 VAC systems
1
Housed in fused terminal blocks. Illuminated LED indicates blown fuse.
Figure 14. Label placement on exterior of enclosure

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Figure 15. Label placement on electronics panel assembly (upper level)
Figure 16. Label placement on sample cell panel assembly (8/28 m sample cell) (lower level)

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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Figure 17. Label placement on sample cell panel assembly (0.8 m sample cell) (lower level)
Figure 18. Label placement on sample cell panel assembly (0.1 m sample cell) (lower level)

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3Safety
3.1 Potential risks affecting personnel
This section addresses the appropriate actions to undertake when faced with hazardous situations during or before
service of the analyzer. It is not possible to list all potential hazards within this document. The user is responsible for
identifying and mitigating any potential hazards present when servicing the analyzer.
Technicians are expected to follow all safety protocols established by the customer that are necessary for
servicing the analyzer. This may include, but is not limited to, lockout/tagout procedures, toxic gas monitoring
protocols, PPE requirements, hot work permits, and other precautions that address safety concerns related to
performing service on process equipment located in hazardous areas.
3.1.1 Mitigating risks
Refer to the instructions for each situation listed below to mitigate associated risks.
3.1.1.1 Exposure to process gases
1. Shut off the process gas to the analyzer before any service that would require opening a part of the sample
plumbing.
2. Purge the system with nitrogen.
3. Shut off the nitrogen purge before opening any part of the sample system.
3.1.1.2 Exposure to toxic gas (H2S)
Follow the procedure below if there has been any suspected leak from the sample system and accumulated SCS
enclosure.
1. Purge the SCS enclosure to remove any potentially toxic gas.
2. Test the H2S levels of the SCS enclosure using the port from the safety purge kit to ensure the purge has cleared
any toxic gas.
3. If no gas leak is detected, open the SCS enclosure door.
Follow all safety protocols governing toxic gases and potential leaks.
3.1.1.3 Electrocution hazard
Complete step 1 before performing any service that requires working near the main input power or
disconnecting any wiring or other electrical components.
1. Shut off power at the main disconnect external to the analyzer.
2. Open enclosure door.
If service must be performed with power engaged (gain adjustment, etc.):
3. Note any live electrical components and avoid any contact with them.
4. Only use tools with a safety rating for protection against accidental contact with voltage up to 1000 V (IEC 900,
ASTF-F1505-04, VDE 0682/201).
3.1.2 Explosion hazard
Any work in a hazardous area must be carefully controlled to avoid creating any possible ignition sources (e.g., heat,
arcing, sparking, etc.). All tools must be appropriate for the area and hazards present. Electrical connections must
not be made or broken with power on (to avoid arcing).

SS2100i-1 TDLAS Gas Analyzer Operating Instructions
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4Installation
This section describes the processes used to initially install and configure your SS2100i-1. Once the analyzer arrives,
take a few minutes to examine the contents before installing the unit.
Endress+Hauser’s Class 1 Division II analyzers use a non-incendive protection method, and as such all portions of
the local installation codes apply. The maximum allowed inductance to resistance ratio (L/R ratio) for the field
wiring interface must be less than 25 μH/Ω. The maximum total loop capacitance shall be 0.27 microfarads.
4.1 What should be included in the shipping box
The contents of the crate should include:
•The Endress+Hauser SS2100i-1 analyzer
•Document CD or USB; includes this Operating Instruction and the AMS100 software and instruction
•Tooling Kit (1100002156), which includes a serial converter cable for service and diagnostic purposes
For software drivers and operational instructions, refer to the manufacturer’s website:
http://www.ftdichip.com/.
If any of these contents are missing, contact Service. Refer to Service → .
4.2 Inspecting the analyzer
Unpack and place the unit on a flat surface. Carefully inspect all enclosures for dents, dings, or general damage.
Inspect the inlet and outlet connections for damage, such as bent tubing. Report any damage to the carrier.
Avoid jolting the instrument by dropping it or banging it against a hard surface, which may disturb the optical
alignment.
4.3 Hardware and tools for installation
Depending on the particular model, the configuration of accessories and options ordered, you may need the following
specific hardware and/or tools to complete the installation process.
4.3.1 Hardware
•Mounting hardware used for wall-mounting the SS2100i-1 must be able to support four times the weight of the
instrument (86 kg [190 lbs.]) not including the sample system)
•Stainless steel tubing using 6.35 mm (0.25 in.) O.D. x 0.889 mm (0.035 in.) wall thickness, seamless 316L
stainless steel electropolish tubing is recommended)
•Mounting frame, or sturdy structure, designed with a safety factor of 4 (3500 N maximum load)
4.3.2 Tools
•8 mm Allen wrench
•8 mm ball point hex L-key
•10 mm ball point hex L-key
•5/32 in. high torque ball point hex L-key
•7/64 in. stainless steel ball point hex L-key
•9/16 in. angle double open-end wrench: 15 and 75 degree
•11/16 in. extra-long thin-head double open-end wrench
•RS-485 —USB converter (P/N 3100002220)

Operating Instructions SS2100i-1 TDLAS Gas Analyzer
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4.4 Mounting the analyzer
Refer to Appendix A → for analyzer mounting dimensions.
When mounting the analyzer, be sure not to position the instrument so that it is not difficult to operate adjacent
devices. Allow 1 meter (3 feet) of room in front of the analyzer and position the analyzer no further than 10
meters (33 feet) from any associated scrubber.
Endress+Hauser’s analyzers are designed for operation within the specified ambient temperature range. Intense
sun exposure in some areas may cause the analyzer temperature to exceed the maximum. Endress+Hauser
recommends minimizing full sun exposure to the analyzer.
4.4.1 Lifting the analyzer
Before removing the crate, move the analyzer crate as close as possible to the final location. Due to the analyzer’s
weight (approximately 86 Kg [190 lbs]), Endress+Hauser recommends the use of a forklift, pallet jack, etc. to lift
and/or move the analyzer. If the analyzer is to be lifted by hand, designate multiple individuals to lift by the
mounting brackets, and distribute the weight among personnel to avoid injury.
4.4.2 To mount the analyzer
1. Select a suitable location to mount the analyzer. Choose a shaded area or use an optional analyzer hood (or
equivalent) to minimize sun exposure.
2. Locate the mounting feet on your unit.
3. For wall installations, mark the centers of the top mounting holes.
4. Drill the appropriate size holes for the screws or concrete studs you are using.
5. Hold the analyzer in place and fasten with the top screws.
6. Repeat for the bottom mounting holes.
7. Secure all designated attachment points.
Once all designated attachment points are securely fastened, the analyzer should be ready for the electrical
connections.
4.5 Opening and closing analyzer enclosure cover
Care must be taken to avoid damaging the enclosure cover and body mating surfaces that form a machined flame
path (gap 0.05 mm, roughness 6m). Contact Service if the surfaces are damaged to the extent they no
longer meet the above specifications. Refer to Service → .
4.5.1 To open the analyzer enclosure cover
1. Using an 8 mm Allen wrench or driver, remove each cover screw completely.
2. Place cover screws in a safe place to protect against damage or loss.
3. Gently open cover by pulling on the edge opposite the hinges.
4.5.2 To close the analyzer enclosure cover
1. Gently close the enclosure cover, replace the cover screws, and tighten each to 40 N-m.
All cover screws must always be tightened completely and may be replaced only with screws of the same type
(ISO 4762/DIN 912) and material (Stainless Steel Grade A2-70). Ultimate Racing UR 0905 Copper Anti-Seize
Lubricant or equivalent on cover screw threads to prevent galling unless glands are used.