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.
Get reliable ammonia measurements for your industrial process with Servomex. Our ammonia analyzer range provides expert solutions for ammonia slip in DeNOx applications, and NH3 measurements in many processes. The SERVOTOUGH Laser 3 Plus Ammonia uses Tunable Diode Laser sensing technology to provide part-per-million (ppm) measurements for ammonia slip and NH3 emissions applications. The SERVOTOUGH SpectraExact 2500 is a rugged photometric analyzer that measures NH3 at percentage levels in a range of industrial applications.
In power plants and various other combustion processes, the removal of waste NOx is typically achieved by selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR).
NH3 is injected into the flue gas flow from combustion, reacting with NOx to form water (H2O) and nitrogen (N2). Unreacted NH3 is commonly referred to as ammonia slip, and is generally held to <2 parts per million (ppm) to optimize the process.
Additionally, US EPA PS18 sets out the standard for reliable CEMS monitoring of NH3 as a precursor to harmful particulates.
There are also a number of chemical manufacturing processes – such as those for ethylene and ethylene dichloride – where monitoring ammonia levels is essential for safety, efficiency, and quality control.
Accurate measurement of ammonia slip is important for the operation of DeNOx equipment. High levels of unreacted NH3 are wasteful and costly, while ammonia slip may also have a significant impact on deposition and catalyst plugging. It can also affect potential corrosion of downstream equipment.
Excessive ammonia slip in a coal-fired power plant can create fly ash with high levels of NH3, rendering it unfit for sale as a mineral filler in asphalt or cement plants.
The level of ammonia slip also provides diagnostic information on the proper function of the SCR/SNCR system and the NOx reduction process.
By holding ammonia slip to < 2 ppm, the process can be optimized, delivering operational, cost and safety benefits. However, it is difficult to control without direct measurement using an ammonia analyzer.
Advanced Tunable Diode Laser (TDLAS) technology presents a complete and effective solution for accurate ammonia slip control.
Consisting of a tunable diode laser light source, transmitting optics, receiving optics and detector, TDLAS technology is suitable for in-situ, cross-duct measurements. Because the analyzer is installed across a duct or stack, it produces an average concentration reading rather than a point reading that is obtained from an extractive sample, so NH3 concentration levels can be measured with much greater certainty.
The NH3 sample also never leaves the process, so the complications experienced with sample transports in extractive methods are avoided, as well as contaminant problems posed by the dust, heat, and water.
This means not only is the measurement considerably more accurate, but plant operators avoid much of the downtime required for cleaning of extractive systems.
Servomex offers two key NH3 analyzer products for the measurement of ammonia. The SERVOTOUGH Laser 3 Plus Ammonia measures NH3 at ppm levels for ammonia slip and emissions monitoring applications, while the SERVOTOUGH SpectraExact 2500 is a multi-gas analyzer that can be configured to measure percentage levels of ammonia in industrial processes.
The SERVOTOUGH Laser 3 Plus Ammonia is a revolution in Tunable Diode Laser (TDLAS) Absorption Spectroscopy analysis: a highly compact ammonia gas analyzer for in-situ cross-stack applications, which delivers exceptional performance benefits for clean air processes.
Installed directly into process ducts, it is ideal for monitoring ammonia slip during NOx reduction processes such as Selective Catalytic Reduction (SCR) or Selective Non-Catalytic Reduction (SNCR), controlling the level of ammonia slip to between 2-3 parts per million.
Delivering an average measurement of NH3 across the duct, it returns precise readings even during inconsistent flow conditions. With auto-validation software available to ensure ongoing accuracy, the Laser 3 Plus Environmental provides industry-leading installation flexibility and cost and performance benefits.
A highly flexible analytical solution adaptable to many applications, the SERVOTOUGH SpectraExact 2500 delivers proven performance and flexible operation in a resilient and reliable design.
It delivers a real-time online monitoring solution capable of single and multi-component analysis, including percentage-level ammonia. Field mounting capabilities enable flexible use in the harshest process conditions.
Highly affordable, the SpectraExact 2500 uses an intelligent design and non-depleting sensing technologies to help to extend maintenance intervals and dramatically reduce ongoing costs.
Our ammonia analyzer range uses proven sensing solutions that deliver accuracy, ease of use, and a long operational life.
Tunable Diode Laser (TDLAS) technology offers a fast-response, accurate measurement that is highly specific to the gas of interest. This non-contact, non-depleting sensing is used in our innovative, compact SERVOTOUGH Laser 3 Plus range of analyzers.
An advanced form of Infrared sensing, Gas Filter Correlation (Gfx) technology is ideal in applications with interferent background gases, delivering precise, sensitive measurements. It is used in our SERVOTOUGH SpectraExact 2500 photometric analyzer, and is a key technology for our SERVOPRO multi-gas analyzers, the MultiExact 4100, MultiExact 4200, and 4900 Multigas.
For more in-depth information about our ammonia analysis solutions, download our additional expert resources
SERVOTOUGH Laser 3 Plus Environmental Product Brochure
DeNOx process and measuring ammonia slip expert paper
Our digital ammonia sensors, including TDLAS, Infrared, and Gas Filter Correlation, provide solutions to a wide range of processes that require an NH3 analyzer.
We have the solutions to make your process more efficient
Our total analytical solution delivers benefits in cost, process efficiency, safety and emissions across the process
Servomex is the global leader in gas analysis, providing solutions for cleaner, more efficient industries, and enabling the manufacture of products that benefit everyone. With 70 years of expertise and research behind us, we deliver industry-changing gas analysis measurements for process control, quality, safety, emissions monitoring, and combustion efficiency.
Wherever you are in the world, our network of service engineers provides the expertise you need to keep your ammonia analyzer operating at peak performance. With state-of-the-art service centers around the globe, you’ll always have the support your process needs.
Our global service network delivers the support you need to keep your analyzer or system operating at peak performance, for total peace of mind.
Our Purity & Specialty (P&S) team provides products, knowledge and service to market sectors including industrial and medical gases, UHP gases, and semiconductor manufacture
Our Industrial Process & Emissions (IP&E) division is responsible for our gas analysis solutions in the power generation, hydrocarbon processing and emissions monitoring markets
Our team stays in place throughout the project, ensuring consistent communication. This starts with identifying the parameters that the system must meet to ensure optimum performance and ease of use.
Our schematics and documents are reviewed by the customer until the final design is agreed upon. Our skilled engineers then assemble the system at one of our cutting-edge regional centers, with continuous evaluation throughout the build process.
After internal testing and an intensive Factory Acceptance Test (FAT), the finished system is shipped for installation. Our expert support team can commission and calibrate the system and provide any necessary operator training.
The Servomex difference is clear from the start, all the way through to delivery of an ammonia gas analysis system that will transform your process.