Learn more about our expert team, key divisions and how they provide solutions for a wide array of industrial markets.
With a broad product portfolio, we have the best-fit technologies to meet your application needs.
Our stable, reliable gas analysis solutions measure over 20 gases with industry-leading accuracy and stability.
Our expertise and single-supplier solutions help improve an extensive range of industrial processes.
We offer accurate and reliable gas analysis for hazardous and safe area applications, including ultra-low detection and portable products.
Find the right gas analysis solution for your process. Our finder allows you to select by key parameters including the gas sensed, the technology used, and the measurement needed.
Looking for details on an out-of-production analyzer? Find all the information you need for support here.
From a single analyzer with sampling system to an air-conditioned shelter, our expert team can deliver scalable solutions to meet your process needs.
We provide service products customized to meet your precise process uptime requirements.
To report a fault for a product under warranty, fill in the form here for a timely response.
Get the high-quality, authorized spare parts and consumables you need, with rapid delivery.
Our brochures detail the appropriate spares resources available for your gas analyzer.
Servomex is committed to a sustainable approach towards people and operations across our organization.
Our global business is built on an essential set of values that underpin our work, decision-making, and culture.
Become a valued part of the Servomex team and forge your career path with the global leaders in gas analysis.
Learn about the roles of some of our key people and find out what made them choose to work at Servomex.
If you want a career with meaning, working with the best global talent, check out our latest vacancies.
We have career paths to suit every level, from apprentices and graduates to experienced leadership roles.
Search through our full range of magazines, videos, manuals, white papers, and more to find the information you need.
Search by category to get more information from our extensive range of product and application resources.
Stay up to date with the latest from Servomex and the world of gas analysis, including new product releases and industry events.
Reducing NOx emissions from combustion processes is a key objective for meeting environmental legislation. Our compact, accurate systems help ensure the effectiveness and efficiency of your DeNOx application and provide continuous emission monitoring of ammonia.
Our extensive experience in supplying analytical systems to industry for CEMS and DeNOx applications means we understand your process. Our solutions are proven to deliver the results you need.
Armed with deep applications knowledge, our experts can advise on the optimum solution for your plant conditions, supplying gas analysis that exactly matches your requirements.
With a wide range of gas analysis technologies available, we’re able to deliver the most precise, correct measurement for each point in the ethylene process.
Our high-performance analyzers are supported by a network of service and support personnel, ensuring reliable performance across your process.
Using advanced Tunable Diode Laser (TDL) technology, the SERVOTOUGH Laser 3 Plus Environmental is designed to help operators take control of combustion emissions by delivering accurate NH3 measurements in DeNOx processes. Supported by its auto-validation software capabilities, the analyzer also helps maintain the necessary uptime to overcome the regulatory challenges of CEMS applications and comply with EPA PS18 for NH3.
It is important to effectively control NOx through ammonia (NH3) slip to meet legislative requirements and avoid fines. This also improves combustion efficiency, reducing fuel costs and harmful emissions. High levels of unreacted NH3 are costly, and may also have a significant impact on deposition and catalyst plugging, as well as potential corrosion of downstream equipment.
There is a growing demand to continuously measure the amount of NH3 released at a plant stack as a precursor to particulate matter of 2.5 microns. In the US, it is recommended that operators ensure their optical-based analyzers and systems meet EPA performance specification 18 (PS18). This makes uptime an essential consideration for NH3-based CEMS applications.
Karen leads the Industrial Process and Emissions Business Unit in providing solutions which support our customers as they overcome the challenges of making their processes safer, cleaner, and more efficient.
Karen Gargallo, Business Unit Manager, IP&E
Responsible for managing our oxygen analyzers in the Industrial Process & Emissions sector, Keith has been working with gas analysis solutions for more than 20 years, 12 of them at Servomex.
Keith Warren, Product Manager
Leading the life-cycle management of our Spectroscopic analyzer range, Rhys is responsible for the development of the markets they serve, and the strategic growth of those technologies.
Rhys Jenkins, IP&E Product Manager, Spectroscopic Analyzers
Overseeing the business development operations of our Industrial Process & Emissions team in China, Huiyu leads our pursuit of large international projects.
Huiyu Guan, Business Development Manager, IP&E, China
Stephen is responsible for managing the lifecycle of new Servomex Products, specifically, the introduction of new technologies into Servomex Analyzers. As STEM Team Leader he also coordinates the internal and external STEM program.
Stephen Firth, Product Manager- Strategic Projects
Servomex’s values underpin everything we are and everything we do: they guide how we work, inform our decision making and shape our culture.
The 4900 Multigas is a high-performance CEMS analyzer designed for a wide range of multi-gas measurements.
A rugged ultra-thin film Aluminum Oxide moisture sensor which measures moisture in a wide variety of gas phase process applications.
Built specifically to work in harmony with the AquaXact 1688 ultra-thin film Aluminum Oxide moisture transmitter.
The Chroma is optimized to specific background gases to ensure optimum performance for your application.
An ultra-trace Coulometric oxygen analyzer, the DF-550E is optimized for quality measurements in ultra-high-purity electronic gases.
A superior quality control solution for ultra-high-purity (UHP) electronic grade gases, the DF-560E Ultra delivers an industry-best detection of 45 parts per trillion for oxygen (O2).
The DF-745 delivers trace and ultra-trace measurements of moisture for ultra-high-purity (UHP) electronic gas checks in LED/LCD manufacturing processes.
The DF-745 SGMax is designed for the measurement of diverse gas mixtures in specialty gas blending applications.
Providing trace and ultra-trace moisture contaminant measurements in a variety of background gases, the DF-749 is ideal for quality checking of UHP gases used in LCD and LED manufacture.
The DF-750 is a trace/ultra-trace moisture analyzer optimized for measurements in the ultra-high-purity (UHP) gases used in 300mm semiconductor fabs.
Delivering industry-leading trace/ultra-trace moisture measurements, the DF-750 ULTRA is optimized for quality monitoring in the ultra-high-purity (UHP) gases used in 300mm semiconductor fabs.
Designed for quality control applications in UHP bulk gases, the compact DF-760E analyzer is a unique solution for the dual measurement of trace and ultra-trace moisture
Designed for industry-leading quality control measurements in UHP bulk gases, the compact DF-760E ULTRA is a unique dual-analysis solution for trace and ultra-trace moisture and oxygen.
With trace analysis capability, the FID is ideal for ASU safety and quality control applications.
Designed to measure O2 and COe in flue gases for improved combustion efficiency and reduced emissions.
Utilizes an internally heated oven set to 190°C (374°F) to maintain the sample gas above its dew point, for optimum performance in total hydrocarbon analysis (THC).
Unmatched installation flexibility plus cost and performance benefits, ready for fast, accurate and responsive measurements in combustion and process control.
Compact, high-performance Tunable Diode Laser (TDL) analyzer, specifically optimized for ammonia slip measurement
Optimized for the fast, accurate and responsive measurement of process oxygen (O2) in hot or hazardous conditions.
Designed for the measurement of oxygen (O2) in potentially flammable gas samples. Certified to Zone 0 and Zone 1 and suitable for measuring percent levels of O2.
The MiniHD 5200 portable gas analyzer is a rugged, heavy duty analyzer designed to accurately measure the levels of O2, CO and CO2 within common gas mixtures.
The only truly portable battery-powered gas analyzer with MCERTS and TUV certification, offers single or dual measurement of oxygen (O2) and carbon dioxide (CO2).
The MonoExact DF150E combines the reliability of Servomex’s tried and tested Coulometric oxygen sensor with a more user-friendly package.
Designed specifically for accurate measurements of oxygen in industrial gas (IG) applications.
A high-performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements.
The MultiExact 4200 analyzes up to four gases simultaneously for Syngas and HyCO
Incorporating the latest advances in gas sensing and signal processing methodology, the NanoChrome revolutionizes ultra-trace purity measurements.
Using proven ultra-trace sensing, the NanoChrome ULTRA conquers the most stringent demands of the semiconductor industry, delivering a cost-effective solution compared to competing technologies.
Measures NO or NO/NO2/NOx concentrations in industrial gas and vehicle emission applications.
The Oxy 1900 oxygen (O2) gas analyzer sets new standards of flexibility, stability and reliability from a single, cost-effective unit.
The high-specification OxyExact 2200 O2 analyzer offers an unrivaled combination of precision, flexibility and performance for optimum process and safety control.
The Plasma delivers an accurate, highly stable and reliable measurement, with high sensitivity in the 0-1ppm range.
A getter-based purification unit designed for the purification of carrier gases used in Gas Chromatography (GC) and other analytical applications
Flexible single and multicomponent gas analysis capability for corrosive, toxic and flammable sample streams.
Get the latest information about all our solutions for ammonia monitoring and related processes.
Stay up to date: click to download.
DeNOx process and measuring ammonia slip expert paper
SERVOTOUGH Laser 3 Plus Certification Manual | Product certification
ES Magazine Issue 29 Clean Air
SERVOTOUGH Laser 3 Plus Product Configuration
SERVOTOUGH Laser 3 Plus Environmental Product Brochure
SERVOTOUGH Laser 3 Plus Operator Manual
SERVOTOUGH Laser 3 Plus Certification Manual
SERVOTOUGH Laser 3 Plus Environmental Recommended Spares
See what’s new in ammonia monitoring, including our latest product releases and application solutions.
July 2020
January 2020
April 2017
You've been added to our newsletter
In this episode, application experts discuss gas analysis for continuous ammonia (NH3) monitoring in combustion emissions.
In the contemporary age of increasing environmental consciousness, the reduction of Nitrogen Oxides (NOx) emissions is becoming an essential requirement. NOx, a collective term for nitric oxide (NO) and nitrogen dioxide (NO2), is produced when excess nitrogen and oxygen react during combustion, particularly at high temperatures. The effective control of NOx emissions is critical not only to meet legislative requirements and avoid fines but also to enhance the efficiency of a combustion process.
The typical method for eliminating waste NOx in power plants and other combustion processes, also known as the DeNOx process, involves selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR). Both these methods use ammonia (NH3) or NH3 in the form of urea, which reacts with NOx on a catalyst surface to form water (H2O) and nitrogen (N2). However, maintaining optimal conditions is crucial to avoid surplus unreacted NH3, also known as ammonia slip.
The accurate measurement of ammonia slip is essential for several reasons, including cost efficiency, impact on downstream equipment, and diagnostic information about the SCR/SNCR system’s functioning. Yet, due to factors like the reactive nature of NH3, the presence of sulfur dioxide (SO2), water (H2O), and dust, measuring ammonia slip has been challenging.
Advanced Tunable Diode Laser (TDL) technology offers an effective solution for accurate ammonia slip control. It involves a diode laser light source, transmitting and receiving optics, and a detector, allowing in-situ, cross-duct measurements. This technology enables the calculation of gas concentration from the gas absorption line shape. As a result, TDL provides more accurate and average concentration readings compared to extractive methods. Moreover, the TDL method eliminates complications such as contaminant problems posed by dust, heat, and water, thus reducing downtime required for cleaning extractive systems.
Leveraging TDL technology, the SERVOTOUGH Laser 3 Plus Environmental (Laser 3 Plus deNOx ammonia) is designed to deliver accurate NH3 measurements in DeNOx processes. This compact gas monitor can be installed directly into process ducts, ideal for monitoring ammonia slip during NOx reduction processes like SCR or SNCR. In addition to the non-depleting measurement offered by TDL technology, the Laser 3 Plus Environmental provides industry-leading installation flexibility with cost and performance benefits.
In the United States, the demand for continuous measurement of NH3 released at plant stacks is growing, despite the absence of national regulation by the US Environmental Protection Agency (EPA). Certain states have begun setting their own performance requirements, like California, which is considering lower NOx emissions limits and additional NH3 limits. The EPA strongly recommends adherence to performance specification 18 (PS18), intended for all future regulations for optical-based analyzers used in continuous emissions monitoring systems (CEMS). Furthermore, regulatory obligations necessitate high uptime of the CEMS equipment, and any unreported data can lead to severe fines.
The Laser 3 Plus Environmental’s reliable performance (Laser3 Plus deNOx ammonia), combined with its auto-validation software capabilities, makes it an ideal solution for meeting the rigorous regulatory requirements of CEMS applications. It offers low maintenance and operational costs, leading to a low lifetime ownership cost, while providing uptime higher than 90%. Furthermore, Servomex provides comprehensive support, including a hot-swap program for rapid replacements.
Innovations in the field of environmental gas analysis have taken major strides with the introduction of SERVOTOUGH Laser 3 Plus DeNOx NH3. This powerful new analyzer, equipped with state-of-the-art Tunable Diode Laser Spectroscopy (TDLS) technology, brings forth an innovative approach to environmental gas analysis. It is specifically optimized for ammonia slip (DeNOx) and emissions applications, such as process heaters, incinerators, power stations, furnaces, thermal crackers, and thermal oxidizers.
The Laser 3 Plus DeNOx NH3 is capable of withstanding process temperatures up to 500°C (932°F). It offers a low detection limit and negligible zero drift, making it a reliable tool for maintaining accurate measurements over a long period of time. Further boosting its utility, the Laser 3 Plus only requires calibration once every twelve months.
Designed with a compact structure, the Laser 3 Plus is capable of performing in high particulate environments, providing great flexibility for different application contexts. It can handle path lengths ranging from 0.7m to 10m (2.3-33ft), and ensures minimal cross interference. The diversity in mounting options makes it ideal for ducts, stacks, and reactor installations.
Easy installation and operation are a given with the Laser 3 Plus. It is robust, reliable, and offers significant space saving. Furthermore, it supports digital communications via Modbus over Ethernet, and features a user-friendly interface and rapid disconnect system for easy calibration.
The Laser 3 Plus brings a reduced total cost of ownership, thanks to its non-depleting TDL technology, absence of moving parts and consumables, and the elimination of a sample conditioning system, which significantly lowers maintenance costs.
The Laser 3 Plus complies with ATEX, IECEx, and North American hazardous area approvals. It is certified for both gases and dust and comes with an IP66 and CE approved rating.
Servomex has approached TDL analysis with a fresh perspective, creating an analyzer that’s only a fraction of the size without compromising on performance. The result is TDL analysis
that is easier and faster to install, saving valuable space while enabling greater installation flexibility.
The Laser 3 Plus works hard to reduce costs at all stages. In addition to the immediate advantages of TDL technology, its compact design greatly reduces installation time. The advanced Wavelength Modulation Spectroscopy processing software eliminates drift over extended operational periods, ensuring reliable and accurate operation.
The SERVOTOUGH Laser 3 Plus DeNOx NH3 is equipped to measure NH3, utilizing Single Line Tunable Diode Laser Spectroscopy technology. It offers a response time of less than 30 seconds, making it an efficient tool in critical processes.
Moreover, the Laser 3 Plus DeNOx NH3 has excellent operating environment parameters. It operates within a temperature range of -20°C to +65°C (-4°F to +149°F), can handle a maximum altitude of 4000m (13,120ft) and is functional within 10 minutes of setup.
In terms of physical aspects, the transmitter and receiver are light and compact, weighing 2kg (4.4lbs) and 1.6kg (3.52lbs), respectively.
The Laser 3 Plus has been approved for use in process hazardous area zones no greater than Zone 2 or Zone 21, and complies with all applicable EC Directives.
In conclusion, the SERVOTOUGH Laser 3 Plus is a revolutionary addition to the field of gas analysis, providing a durable, versatile, and cost-effective solution for varied applications.
To download the Product Overview PDF of the SERVOTOUGH Laser 3 Plus deNOx NH3 click below.
Still not convinced? Find out how our analyzers deliver the measurements you need for quick reliable ammonia monitoring. Our range of technologies provide the optimum solution for your plant conditions. Speak to our application experts to find out more.