Endress+Hauser SS1000 User manual

Products Solutions Services
BA02186C/66/EN/01.21
70193628
Valid as of version
HC12 v2.51
(Device firmware)
Operating Instruction
SS1000 TDLAS Gas Analyzer
Non-hazardous (certified) locations
General Purpose

Endress+Hauser i
TABLE OF CONTENTS
1: Introduction
Who Should Read This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
How to Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Standard Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
General Warnings and Cautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Equipment labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Instructional symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
About the Gas Analyzers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
How the Analyzers Work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Wavelength Modulation Spectroscopy (WMS) signal detection . . . . . . . . . 1-7
Getting to Know the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Lifting/carrying the analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2: Safety
Potential Risks Affecting Personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Mitigating risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Explosion hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
3: Installation
What Should be Included in the Shipping Box . . . . . . . . . . . . . . . . . . . . . . . 3-1
Inspecting the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Hardware and Tools for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Setting up the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Connecting the Gas Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Conditioning the Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Connecting Electrical Power to the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Connecting the Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Appendix A: Specifications
Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Appendix B: Maintenance and Troubleshooting
Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Gas Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Contamination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Mirror Cleaning or Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Excessive Sampling Gas Temperatures and Pressures . . . . . . . . . . . . . . . . . B-7
Membrane Separator Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Electrical Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Checking the Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Instrument Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Service repair order (SRO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Renewity returns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Before contacting Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15

SS1000 TDLAS Analyzer BA02186C
ii Endress+Hauser
THIS PAGE INTENTIONALLY LEFT BLANK

Endress+Hauser 1–1
1 - INTRODUCTION
Endress+Hauser’s SS1000 product is a high-speed, diode-laser based
extractive analyzer designed for extremely reliable monitoring of very low
(trace) to standard concentrations of specific components in various
background gases. In order to ensure that the analyzer performs as specified,
it is important to closely review the installation and operation sections of this
manual.
To operate the analyzer through firmware programming, please consult the
Description of Device Parameters for instruction.
Who Should Read This Manual
This manual should be read and referenced by anyone installing, operating or
having direct contact with the analyzer.
How to Use This Manual
Take a moment to familiarize yourself with this manual by reading the Table
of Contents.
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.
Standard Documentation
All documentation is available on the Endress+Hauser’s website:
www.endress.com.
This document is an integral part of the complete document package, which
also includes:
Part
Number Document Type Description
TI01643C Technical Informa-
tion
Planning aid for your device.
The document contains all the
technical data on the analyzer.
GP01181C Description of Device
Parameters
Provides the user with an overview
of the HC12 v2.51 firmware func-
tionality.

SS1000 TDLAS Analyzer BA02186C
1–2 Endress+Hauser
General Warnings and Cautions
Instructional icons are provided in this manual and various safety labels are
adhered to the analyzer to alert the user of potential hazards, important
information and valuable tips. Following are the symbols and associated
warning and caution labels to observe when servicing the analyzer. Some of
these symbols are provided for instructional purposes only and are not labeled
on the system.
Equipment labels
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.
INVISIBLE LASER RADIATION - Avoid
exposure to beam. Class 3b Radiation Product.
Refer servicing to the manufacturer or qualified
personnel.
WARNING
CLASS 3B INVISIBLE LASER
RADIATION WHEN OPEN
AVOID EXPOSURE TO THE BEAM

BA02186C SS1000 TDLAS Analyzer
Endress+Hauser 1–3
Instructional symbols
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.
Removing label from measurement cell optical
head will void analyzer warranty.
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.

SS1000 TDLAS Analyzer BA02186C
1–4 Endress+Hauser
About the Gas Analyzers
The SS1000 includes tunable diode laser (TDL) 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.
How the Analyzers Work
The SS1000 employs SpectraSensors’ tunable diode laser absorption
spectroscopy (TDLAS) to detect the presence of trace substances in process
gases. Absorption spectroscopy is a widely used technique for sensitive trace
species detection. Because the measurement is made in the volume of the gas,
the response is much faster, more accurate and significantly more reliable than
traditional surface-based sensors that are subject to surface contamination.
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 1-1. 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 SS1000, sample gas flows
continuously through the sample cell ensuring that the sample is always
representative of the flow in the main pipe.

BA02186C SS1000 TDLAS Analyzer
Endress+Hauser 1–5
Figure 1–1 Schematic of a typical laser diode absorption
spectrometer (0.8 m measurement cell)
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
, (1)
where N represents 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
. (2)
1 TEC 5 Detector
2 Laser 6 Window
3 Inlet 7 Pressure sensor
4 Optical head 8 Outlet
9 Far mirror
4
5
6
8
9
1
2
3
7
I  I0 exp   lN– =
N1–
  l
-------------- I 
I0 
-------------
ln=

SS1000 TDLAS Analyzer BA02186C
1–6 Endress+Hauser
Figure 1–2 shows the typical raw data (in arbitrary units [a.u.]) 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 1–3.
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.
Figure 1–2 Typical raw signal from a laser diode absorption
spectrometer with and without mirror contamination
1 Incident energy, I0()4 Signal (a.u.)
2 Raw signal, I()5 Wavelength (a.u.)
3 Raw signal, I() (contaminated mirrors)
3.0
2.5
2.0
1.5
1.0
0.5
1
2
3
5
4
0.0