SERVOPRO safe area

The SERVOPRO NOx measures ultra-low nitric oxide, nitrogen dioxide and nitrous oxide in key emissions applications

Utilizing Chemiluminescence detection technology to measure NO or NO/NO2/NOx concentrations in industrial gas and vehicle emission applications, the versatile SERVOPRO NOx can be calibrated for four measurement ranges starting from ultra-low to high ppm and is easy to install and operate.

Combustion and Ultra-Low NOx emissions testing and monitoring in one simple analyzer

The versatile SERVOPRO NOx gas analyzer uses the time-proven Chemiluminescence Detector (CLD) method to measure NO or NO/NO2/NOx concentrations all in one analyzer – perfect for continuous monitoring for industrial stationary sources emissions or ambient air, and fast enough for emissions testing in engines and vehicles.

The analyzer uses ozone (O3) which reacts with the nitric oxide (NO) in the sample stream, yielding an excited state of NO2 (NO2*) plus oxygen (O2). As the NO2* returns to a more stable state, it produces a chemiluminescent light of intensity proportional to the concentration of NO that was converted into NO2. A photodiode detector measures the light to determine a ppmv NO value.

To produce a total NOx signal, an internal converter turns any NO2 in the sample into NO. This stream is then subjected to O3 gas – the resultant reaction is directly proportional to the total NOx concentration. The analyzer calculates the final NO2 concentration from the NOx converter efficiency.

Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency

The ideal solution for NOx emission monitoring

With the time-proven chemiluminescence detector (CLD) technology to measure NO only or NO/NO2/NOx concentrations, the SERVOPRO NOx analyzer is a must-have solution for industrial or vehicle emissions applications. Delivering excellent linear analysis from trace levels up to high ppmv concentrations, its non-depleting photodiode measurement system helps provide a low cost of ownership across the lifetime of the product. The analyzer is equipped with a variety of field configurable options including new ranges that can be changed either manual or remotely, making the SERVOPRO NOx the ideal way to tackle any safe-area NOx monitoring application.

Flexible options to meet your application needs

The highly adaptable SERVOPRO NOx allows for a variety of options which can be configured in the field. Four user-definable measurement ranges for NO and NOx can be set from 0-3ppm up to 0-3,000ppm. These can be changed and recalibrated in the field either manually
or remotely. A heated version is also available that allows for “wet/dry” sampling options. The standard product includes a Paramagnetic oxygen analyzer, internal valves for zero/sample/span switching, and an internal sampling pump. Whatever your application requirements, the versatile SERVOPRO NOx can be adapted to meet them.

High performance at low cost of ownership

Providing highly accurate readings with rapid response time of less than two seconds to reach T90 , the SERVOPRO NOx analyzer delivers the quality measurement you need while keeping costs as low as possible. No vacuum pump is required and proportional electronic pressure control is used to stabilize the sample and ozone flows, reducing the lifetime cost of ownership. A low-temperature vitreous carbon NOx converter means there is no ammonia interference, while the auto calibration and ranging features ensure ease of use.

Building a CEMS system? Contact the experts

If you need a continuous emissions monitoring system (CEMS), we can help. As the global experts in gas analysis, we’re ready to design, build and install your system, with a collaborative approach and start-to-finish project management. Get in touch now.

Ready to buy? Here’s how it works

It’s easy to find the product you need for your application with Servomex

Enquiry

Get in touch to tell us what you need and the application you plan to use it for

Consultation

Our expert team will help you select the right product package, ensuring you have the accessories and support to get the best performance from your analyzer

Fulfilment

Your analyzer will be assembled in one of our state-of-the-art engineering centers and rapidly dispatched to your site

The benefits of NOx monitoring

The SERVOPRO NOx provides a versatile solution for emissions monitoring and testing.

Low lifetime cost

The SERVOPRO NOx keeps costs low, with a non-depleting, light-based measurement and electronic flow control.

An adaptable solution

Measuring from 0-3ppm to 0-3,000ppm, the SERVOPRO NOx provides low-flow sampling and a heated option for wet-to-dry conversion.

Range of emissions monitoring compliances

The SERVOPRO NOx can be configured to meet a range of regulatory standards, including EPA 1065/1066 and LD Euro 6, and HD Euro V1.

Flexible

  • Measures 0-3 to 0-3,000ppm full scale NO/NO2/NOx
  • Heated version available
  • Low flow sampling at 0.6 lpm
  • Versatile solution for emissions monitoring and testing

Easy to use

  • Automatic calibration and full scale autoranging
  • Internal converter for NO2 to NO
  • Zero and span with TCP/IP or RS232
  • Internal pump included

Low cost of ownership

  • Non-depleting light-based measurement method
  • Electronic sample and ozone flow control
  • Easy to install and operate

Unrivalled performance

  • Fast response time
  • Accurate reading with high repeatability
  • Screen and keypad for easy manual operation
  • TCP/IP, RS232, Modbus, four scalable analog 0-10 V / 4-20 mA

Benchmark compliance

  • CE Mark and ETL listed
  • Conforms to UL STD 61010-1
  • Certified to CAN/CSA C22.2 STD 61010.1
  • EPA 40 CFR Part 1065/1066, Euro VI HD and Euro 6 LD compliant configurations available

Gases sensed, measurements and technologies

Gas Measurement
Nitrogen Dioxide ()
Nitric oxide ()
Nitrogen oxides ()

Technologies

Compliance

  • CE Mark and ETL listed
  • Conforms to UL STD 61010-1
  • Certified to CAN/CSA C22.2 STD 61010.1
  • EPA 40 CFR Part 1065/1066, Euro VI HD and Euro 6 LD compliant configurations available

Size

133.35mm (5.25”) high x 482.6mm (19”) wide x 584.2mm (23”) deep

Weight

21.8kg (48lb)

Get the detailed specifications

“For in-depth specifications you’ll want to download our technical datasheet which includes information on technology, performance, operating environment, sample conditions and compliance along with technical drawings and top-level benefits and applications.”

Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency

All the resources you need, in one place

“We’ve packaged together our complete selection of information about the SERVOPRO NOx, including features, benefits and technical specifications. Download the resource pack now to find out all you need to know.”

Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency

Typical applications

The SERVOPRO NOx uses Chemiluminescence detection to provide key measurements in industrial gas and vehicle emission measurements.

Continuous emissions monitoring (CEMs) | Ambient air monitoring | Scrubber efficiency | Combustion efficiency | Turbine/generator feedback control | Process gas analysis | Vehicle emissions | Engine testing | SCR/SNCR feedback control

Process heaters and furnaces

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Coal-fired thermal power

Our total analytical solution delivers benefits in cost, process efficiency, safety and emissions across the process

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