Endress+Hauser SpectraSensors OXY5500 Installation guide

P/N 4900002244 rev B
OXY5500 Sample
Conditioning System (SCS)
Overview Manual

Products of
4333 W Sam Houston Pkwy N, Suite 100
Houston, TX 77043-1223
Tel: [phone]
Fax: [phone]
www.spectrasensors.com
Copyright © 2017 SpectraSensors, Inc. No part of this manual may be reproduced in
whole or in part without the express written permission of SpectraSensors, Inc.
SpectraSensors reserves the right to change product design and specifications at any
time without prior notice.
OXY5500 Sample Conditioning
System (SCS)
Overview Manual

Revision History
Revision Engineering Order Date
A EO16556 April 20, 2016
B ECR16977 Feb. 21, 2017

SCS Overview Manual i
TABLE OF CONTENTS
List of Figures/Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-iii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-iii
1: Introduction
Who Should Read This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
How to Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
General Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Equipment Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instructional Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
SpectraSensors Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2: SCS Overview
About the SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Typical SCS Component Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Sample Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Sample Regulators at the Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Sample Conditioning System Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Sample Regulator Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Sample Transport Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Sample Bypass Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
SCS Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Measurement Manifold Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Sample Return/Vent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
SCS Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
3: SCS Installation
Inspecting the SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Lifting/carrying the SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Installing the SCS Standard Enclosure or Panel . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Hardware and Tools for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mounting the standard SCS panel or enclosure . . . . . . . . . . . . . . . . . . . . . . 3-2
Connecting the standard SCS panel or enclosure . . . . . . . . . . . . . . . . . . . . . 3-4
Connecting the SCS Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Installing the SCS Remote Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Mounting the SCS remote panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Connecting the SCS remote panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Connecting the oxygen sensor to the remote panel . . . . . . . . . . . . . . . . . . . 3-6
Oxygen sensor with bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Oxygen sensor without bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Connecting the RTD probe to the remote panel . . . . . . . . . . . . . . . . . . . . . 3-10
Checking the SCS Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Starting up the SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
System Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Appendix A: Specifications and Drawings. . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B: Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Oxygen Analyzer
ii 4900002244 rev. B 2-21-17
Appendix C: Troubleshooting & Maintenance
Potential Risks Affecting Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Mitigating risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Exposure to toxic gas (H2S). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Electrocution hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Explosion hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Electrostatic discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Gas Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Excessive Sampling Gas Temperatures and Pressures . . . . . . . . . . . . . . . . . . . . C-3
Replacing the Membrane Separator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Shutting Down the SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
Service Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Service Repair Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Packing and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

SCS Overview Manual iii
LIST OF FIGURES/TABLES
Figures
Figure 2–1. Typical OXY5500 with SCS on a panel . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 2–2. Analyzer and probe interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 3–1. SCS panel mounting locations . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Figure 3–2. SCS remote panel mounting locations . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 3–3. Oxygen and RTD probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 3–4. Oxygen probe - insertion marking. . . . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 3–5. Oxygen probe - insertion marking. . . . . . . . . . . . . . . . . . . . . . . . 3-8
Figure 3–6. Oxygen probe bracket installed . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Figure 3–7. Remove oxygen probe collar . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Figure 3–8. Feed oxygen probe through bracket opening and connect collar . . . 3-9
Figure 3–9. RTD probe installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Figure A–1. SCS, panel mount, standard configuration, dimensions . . . . . . . . . A-2
Figure A–2. SCS, panel mount, standard configuration . . . . . . . . . . . . . . . . . . A-3
Figure A–3. SCS, panel mount, standard configuration with H2S purge . . . . . . A-4
Figure A–4. SCS, remote mount, standard configuration, dimensions . . . . . . . . A-5
Figure A–5. SCS, remote mount, standard configuration. . . . . . . . . . . . . . . . . A-6
Figure A–6. SCS, remote mount, standard configuration with H2S purge . . . . . A-7
Figure A–7. SCS, enclosure, standard configuration, dimensions . . . . . . . . . . . A-8
Figure A–8. SCS, enclosure, standard configuration . . . . . . . . . . . . . . . . . . . . A-9
Figure A–9. SCS, enclosure, standard configuration with H2S purge. . . . . . . . A-10
Figure A–10. SCS, enclosure, heater wiring diagram . . . . . . . . . . . . . . . . . . . A-11
Tables
Table A–1. OXY5500 SCS specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table B–1. Replacement parts for OXY5500 SCS . . . . . . . . . . . . . . . . . . . . . B-1
Table C–1. Potential instrument problems and solutions . . . . . . . . . . . . . . . . C-7

OXY5500 Analyzer
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SCS Overview Manual 1–1
1 - INTRODUCTION
SpectraSensors’ OXY5500 sample conditioning system (SCS) is used as an
option with the OXY5500 oxygen analyzer. This manual provides an overview
of the SCS and its components, operation and troubleshooting. Other manuals
related to operation, installation and maintenance of the OXY5500 system
include:
•OXY5500 Oxygen Analyzer Operator’s Manual (P/N 4900002239)
•OXY5500 Installation Safety Manual (P/N 4900002247)
•OXY5500 Service Software Manual (P/N 4900002254)
Who Should Read This Manual
This manual should be read and referenced by anyone installing, operating or
having direct contact with the analyzer and SCS.
How to Use This Manual
Take a moment to familiarize yourself with this Operator’s Manual by reading
the "Table of Contents".
There are a number of options and accessories available for the OXY5500
analyzers. This manual has been written to address the most common options
and accessories. Images, tables and charts have been included to provide a
visual understanding of the analyzer and its functions. Special symbols are also
used to provide the user with key information regarding the system
configuration and/or operation. Pay close attention to this information.
General Warnings and Cautions
Instructional icons are provided in this manual 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.
Equipment Safety Labels
Instructional Symbols
Purge sample system and
vent to safe area when H2S
is present to avoid potential
risk to personnel.
Failure to follow all directions may result in damage or
malfunction of the analyzer.
WARNING
HIGH CONCENTRATION OF H2S MAY BE PRESENT. SAMPLE
SYSTEM SHOULD BE PURGED WITH LOW PRESSURE NITRO-
GEN AND VENTED TO SAFE AREA PRIOR TO PERFORMING
MAINTENANCE

OXY5500 Analyzer
1–2 4900002244 rev. B 2-21-17
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.
SpectraSensors Overview
SpectraSensors, Inc. is a leading manufacturer of technologically advanced
electro-optic gas analyzers for the industrial process, gas distribution and
environmental monitoring markets. Headquartered in Houston, Texas,
SpectraSensors was incorporated in 1999 as a spin-off of the NASA/Caltech Jet
Propulsion Laboratory (JPL) for the purpose of commercializing space-proven
measurement technologies initially developed at JPL. SpectraSensors was
acquired by the Endress + Hauser Group in 2012, which has expanded our
reach in the global marketplace.
General notes and important information concerning the
installation and operation of the analyzer.
Failure to follow all directions may result in fire.

SCS Overview Manual 2–1
2 - SCS OVERVIEW
OXY5500 systems may be ordered with an optional integrated Sample
Conditioning System (SCS). Each SCS has been specifically designed to deliver
a sample stream to the analyzer that is representative of the process stream
at the time of sampling. To ensure the integrity of the sample stream and its
analysis, care must be taken to install and operate the SCS properly. Therefore,
any personnel intending to operate or service the analyzer and SCS should
have a thorough understanding of the process application and the design of the
analyzer and SCS.
Most problems experienced with sample systems tend to result from operating
the system differently than intended. In some cases, the actual process
conditions may be different than originally specified (e.g., flow rates, presence
of contaminants, particulates, or condensables that may only exist under upset
conditions). By establishing understanding of the application and the design of
the system, most issues can be avoided altogether or easily diagnosed and
corrected ensuring successful normal operation.
If there are any remaining questions concerning the design, operation or
maintenance of the SCS, contact “Customer Service” on page C-8.
Personnel should have a thorough understanding of the operation
of the OXY5500 analyzer and the SCS, including procedures
presented here, before operating the sample conditioning system.
The process sample at the sample tap may be at a high pressure.
A field pressure reducing regulator is located at the sample tap to
reduce the sample pressure and enable operation of the sample
conditioning system at a low pressure. Use extreme caution when
operating the sample probe isolation valve and field pressure
reducing regulator.
The process sample at the sample tap may be at a high pressure.
Make sure that the field pressure reducing regulator is equipped
with an appropriate pressure relief valve.
Process samples may contain hazardous material in potentially
flammable and/or toxic concentrations. Personnel should have a
thorough knowledge and understanding of the physical properties
and safety precautions for the sample contents before operating
the SCS.

OXY5500 Analyzer
2–2 4900002244 rev. B 2-21-17
About the SCS
For a typical full-featured SCS, as shown in Figure 2–1, sample gas enters the
sample conditioning unit [at the specified supply pressure set by an upstream
regulator] via the sample supply port, passes through a shut-off valve,
pressure regulator that maintains constant pressure in the measurement
manifold, and membrane separator where any liquid in the stream is removed.
Liquid removed by the membrane separator passes through the bypass loop.
A continuous flow (set to the specified level by a metering valve with integrated
flowmeter) not only flushes the liquid from the membrane separator but also
maintains flow through the sample lines, which reduces sample variation.
Refer to the system drawings and schematics found in Appendix A
of this manual for your specific system configuration.
Figure 2–1 Typical OXY5500 with SCS on a panel
MEASUREMENT
MANIFOLD
SAMPLE SUPPLY
INLET

SCS Overview
SCS Overview Manual 2–3
The flow exiting the bypass loop is combined with the flow exiting the
measurement manifold and sent out the sample return port to be vented to a
safe location.
Typical SCS Component Overview
Some of the typical components used in the SCS will be described in this
section. The SCS for your analyzer may not use all of these components, and
may also include additional special devices not discussed here.
Sample Probe
A sample probe is used to provide a representative sample of any process
stream. This sample can only be made if the stream is in a vapor phase. Mixed
liquid/vapor streams must be avoided, so the location of the sample probe is
critical in many processes.
A representative sample of the process can only be taken away from the wall
of the process piping. Also, dirt and liquids tend to accumulate close to the
walls of the piping, especially near the bottom of horizontal runs of pipe.
Therefore, SpectraSensors recommends probes that fit well into the pipe.
These may be removable to protect the probe from pipeline “pigging”.
Sample Regulators at the Probe
The pressure of the sample gas is usually reduced at or very close to the
sample probe, sometimes in the probe itself, to reduce the sample transport
lag time to deliver the sample to the analyzer. A guard filter is typically used to
protect the regulator from larger particulates in the sample.
Refer to Figure 2–2 that shows the interface of the probe and the analyzer
system. The analyzer system provided by SpectraSensors is represented by
the blue dashed outline. The probe and field pressure reducing station may also
be supplied by SpectraSensors, but is separate from the analyzer system.
For questions regarding your SCS, please refer to “Service
Contact” on page C-8.
Contact your SpectraSensors’ Sales representative to provide the
temperature, pressure and complete stream composition of the
process stream for advise and recommendations regarding
locating the sample point.

OXY5500 Analyzer
2–4 4900002244 rev. B 2-21-17
Sample Conditioning System Filters
A guard filter is typically installed at the inlet to the SCS with a fine element to
protect the flow controllers, flow meters and pressure regulators from fine
particulates.
A bypass filter with a fritted metal, glass fiber or polymetric membrane filter
may also be in place to remove larger quantities of particulates or entrained
liquids and mists. Some filters may fit with liquid knock-out traps to protect the
system from free liquids.
Accumulation of liquids in these filters, or a steady flow of liquid from a liquid
knock-out trap, should be investigated and corrected immediately as this is
generally an abnormal condition.
Sample Regulator Heaters
In most applications, the process sample is at high pressure. When the
pressure is reduced, the sample cools due to the Joule-Thompson effect.1The
amount of cooling varies greatly depending on the application, but oftentimes
must be offset using a heated sample regulator to prevent condensation of
some sample components. Sample probe regulators can be electrically or
steam heated. Some probes have the pressure reducing valve parts inserted
into the process piping, so that the Joule-Thompson cooling is offset by
warming from the flowing sample. Note that for these probes to work correctly,
the process gas must be flowing anytime the sample is flowing or liquid
condensation may collect in the sample transport line, or even freeze up the
sample probe regulator.
1 Named for James Prescott Joule and William Thomson, the Joules-Thompson effect
describes the increase or decrease in temperature that accompanies the expansion
of gas without production of work or transfer of heat. The cooling occurs because
work must be done to overcome the long-range attraction between the gas mole-
cules as they move farther apart. (www.britannica.com)
Figure 2–2 Analyzer and probe interface

SCS Overview
SCS Overview Manual 2–5
Sample Transport Tubing
Sample transport tubing must be made of an appropriate material, which may
be coated, and of an appropriate diameter for the application. Many times the
sample transport tubing must be heat-traced to prevent sample condensation
or to prevent fluctuations in measurement due to changes in ambient
temperature.
Sample Bypass Flow Control
A sample bypass flow control valve and flowmeters are usually provided to
maintain a flow of fresh sample to the SCS even during system shut-down. The
flow control valve is typically a needle valve and should be closed very gently
and carefully if used to shut off flow completely to avoid damaging the valve.
If the bypass flowmeter has a glass tube, perform an occasional check for
evidence of liquid in the tube. If liquid is found in the bypass or sample cell
flowmeter tubes, investigate and correct immediately.
SCS Pressure Regulator
The OXY5500 analyzer is limited to a maximum 10 psig pressure. To ensure
that this pressure is not exceeded, a pressure regulator is provided inside the
sample system. Refer to Appendix A for the correct pressure setting for this
regulator.
Measurement Manifold Controller
The measurement manifold controller is provided with the SCS. Refer to Figure
2–1. Typically a flow control needle valve and flowmeter similar to the sample
bypass are used, but in some cases a differential flow controller is used. As with
the bypass flow control valve, if the flow control needle valve and flowmeter
must be used for sample shut-off, close the valve gently and carefully to avoid
damage.
Sample Return/Vent
Oxygen analyzers are inherently sensitive to sample pressure variations, so the
analyzers must be calibrated to a specific sample pressures. An optional
pressure sensor is available to accommodate an SCS system with pressure
variations. Sometimes the analyzer is designed to vent the sample to
atmosphere or an atmospheric pressure return system. Return to a flare or
other sample return must recognize the pressure limitations of the oxygen
analyzer and the calibration.
SCS Heaters
Some analyzer systems have heated SCS enclosures for freeze protection.
Refer to “System Power Up” on page 3-13 for instruction on heater use.

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SCS Overview Manual 3–1
3 - SCS INSTALLATION
This section covers specific instructions for mounting and installing the
OXY5500 sample conditioning system (SCS). Refer to Appendix A for system
drawings.
Installing the SCS enclosure or panel is relatively easy requiring only a few
steps that, when carefully followed, will ensure proper mounting and
connection. This section includes information regarding:
•Hardware and Tools for Installation
•Installing the SCS Standard Enclosure or Panel
•Installing the SCS Remote Panel
•Checking the SCS Installation
•Starting up the SCS
•System Power Up
Inspecting the SCS
Unpack and place the SCS with analyzer on a flat surface. Carefully inspect the
enclosures for dents, dings, or general damage. Inspect the supply and return
connections for damage, such as bent tubing. Report any damage to the
carrier.
Each analyzer is custom configured with various accessories and options. If
there is any discrepancy, please contact your sales representative.
Lifting/carrying the SCS
At approximately 80 lbs (36.29 Kg) with OXY5500 analyzer and depending on
the configuration, the OXY5500 SCS panel or enclosure can easily be lifted from
the packaging and moved to the installation location. Lift the enclosure or panel
by the mounting brackets using at least two individuals and distribute the
weight among personnel to avoid injury.
Installing the SCS Standard Enclosure or Panel
Installing the SCS enclosure or panel is relatively easy requiring only a few
steps that, when carefully followed, will ensure proper mounting and
connection. This section includes information regarding:
•Mounting the standard SCS panel or enclosure
•Connecting the standard SCS panel or enclosure
•Checking the SCS Installation
Avoid jolting the instrument by dropping it or banging it against a
hard surface.

OXY5500 Analyzer
3–2 4900002244 rev. B 2-21-17
Hardware and Tools for Installation
Depending on the particular configuration of accessories and options ordered,
you may need the following hardware and tools to complete the installation
process.
Hardware
•1/4” (6 mm) Unistrut®(or equivalent) bolts and spring nuts
•Stainless steel tubing (SpectraSensors recommends using 1/4”
(6.4 mm) O.D. x 0.035” (0.889 mm) wall thickness, seamless
stainless steel tubing)
•3/4” conduit or appropriate M20 x Exe M20 cable gland
•1/4” (6 mm) x 1-1/2” (38.1 mm) machine screws and nuts (for wall
mounting)
Tools
•Drill and bits
•Tape measure
•Level
•Pencil
•Screw driver (Phillips)
•Screw driver, small (Flat-head)
•9/16” open-end wrench or Crescent wrench
•Needle-nose pliers
Mounting the standard SCS panel or enclosure
The OXY5500 SCS panel or enclosure is manufactured for wall or Unistrut®(or
equivalent) metal framing installations. Depending on your application and
configuration, the SCS will come mounted on a plate or inside an enclosure.
Refer to Appendix A for drawings with detailed mounting dimensions.
When mounting the analyzer, be sure not to position the
instrument so that it is difficult to operate adjacent devices. Allow
3 feet (1 m) of room in front of the analyzer and any switches.
It is critical to mount the analyzer so that the supply and return
lines reach the supply and return connections on the chassis while
still maintaining flexibility so that the sample lines are not under
excessive stress.

SCS Installation
SCS Overview Manual 3–3
1. Select a suitable location to mount the SCS enclosure or panel.
Choose a shaded area or use an optional analyzer hood (or
equivalent) to minimize sun exposure.
2. Locate the mounting holes on your unit. Refer to Figure 3–2 (panel
mount) and the system drawings in Appendix A for your
configuration.
3. For wall installations, mark the centers of the top mounting holes.
Mounting dimensions are shown in Appendix A.
4. Drill the appropriate size holes for the screws you are using.
Mounting brackets for equipment intended to be mounted on a
wall and/or parts that support heavy loads shall withstand four
times the maximum static load.
SpectraSensors analyzers are designed for operation within the
specified ambient temperature range. Refer to Appendix A.
Intense sun exposure in some areas may cause the analyzer
temperature to exceed the maximum range.
Figure 3–1 SCS panel mounting locations
MOUNTING
HOLES
MOUNTING
HOLES

OXY5500 Analyzer
3–4 4900002244 rev. B 2-21-17
5. Hold the analyzer in place and fasten with the top screws.
6. Repeat for the bottom mounting holes.
Once all four screws are tightened the SCS should be very secure and ready
for the electrical connections.
Connecting the standard SCS panel or enclosure
After the SCS panel or enclosure is mounted, follow the steps below.
1. Connect electrical power to the OXY5500 analyzer. Refer to the
OXY5500 Operator’s Manual (P/N 4900002239) for analyzer
instructions.
2. Connect the sample supply.
3. Connect the sample return.
Refer to “Checking the SCS Installation” on page 3-10 before starting up
the SCS.
Connecting the SCS Heater
1. Route AC power cables to the heater power junction box. Refer to
Figure A–7, Figure A–8 and Figure A–9 for heater location,
depending on SCS configuration.
2. Use the wiring diagram shown in Figure A–10 to connect the AC
power.
Installing the SCS Remote Panel
Similar to the standard panel installation, the remote SCS panel includes the
following steps:
•Mounting the SCS remote panel
•Connecting the SCS remote panel
•Checking the SCS Installation
SpectraSensors recommends at least two individuals to support
the analyzer SCS during the mounting process.
Refer to system drawings for the specific analyzer model in
Appendix A, Specifications and Drawings.