SERVOTOUGH hazardous area

The compact Laser 3 Plus Process enables fast, accurate process control measurements

The Laser 3 Plus Process Tunable Diode Laser (TDL) analyzer provides all the benefits of Servomex’s TDL Absorption Spectroscopy technology in a small, light unit, offering unparalleled installation flexibility plus cost and performance benefits. It is optimized for the fast, accurate and responsive measurement of process oxygen (O2) in hot or hazardous conditions.

Process gas analysis with unique features and low cost-of ownership

The SERVOTOUGH Laser 3 Plus Process is a highly compact gas monitor for in-situ cross stack applications, delivering exceptional performance benefits in a revolutionary compact design. Its pioneering design occupies a footprint up to one-tenth the size of competitor products, providing instant benefits for installation and flexibility.

Utilizing the latest Wavelength Modulated Spectroscopy (WMS) measurement techniques with unique Servomex signal processing, it provides the most stable, repeatable results for the measurement of O2, with minimal installation and maintenance costs.

Rhys Jenkins
Product Manager – Process Photometric Analyzers

A revolutionary approach to TDL gas analysis

By combining the latest advances in hardware with leading-edge software processing, the SERVOTOUGH Laser 3 Plus is a revolutionary step forward for TDL gas analysis. Servomex has approached TDL analysis afresh, creating an analyzer a fraction of the size without compromising performance. The result is TDL analysis that is easier and faster to install – saving valuable space while enabling much greater installation flexibility.

Low maintenance, low cost-of-ownership

The next-generation ethos of the Laser 3 Plus works hard to reduce costs at all stages. In addition to the immediate advantages of TDL technology – a non-depleting measurement which requires no sample conditioning system – the Laser 3 Plus compact design greatly reduces installation time, with small, light intuitive alignment for easy installation and maintenance. Full ethernet communications for commissioning, diagnostics and trouble shooting.

High performance monitoring

The hardware advances of the Laser 3 Plus are matched by advanced Wave Length Signal Modulated Spectroscopy processing software which eliminates drift over extended operational periods by automatically tracking on a sealed reference cuvette absorption line – Line Lock Technology. This robust tracking mechanism ensures a highly reliable and accurate operation over long periods, with calibration frequencies extended beyond twelve months for many applications. The result is a sturdy, general purpose and hazardous area optimized design which ensures Laser 3 Plus can handle the most challenging of locations; including particulate-rich environments.

Building a system? We’re the experts

If you’re looking to build a complete gas analysis solution, we can help. Get in touch from the start for advice, expert project management, and high-quality engineering. Our collaborative approach ensures you get the efficient, cost-effective system you need.

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

Optimized for process oxygen measurements

The Laser 3 Plus Process is a compact TDL analyzer with a wide range of features and benefits, and a fast, accurate response to changing O2 levels.

A compact design

The Laser 3 Plus Process is small enough to be easily installed by a single engineer, while the on-board display negates the need for laptop configuration.

Approved for hazardous conditions

The Laser 3 Plus Process has ATEX, IECEx and North American hazardous area approvals, is approved for process Zone 2, SIL 2 assessed, and CE marked.

Reliable measurements

Using Servomex’s own line lock cuvette technology, the Laser 3 Plus Process continues to measure oxygen reliably, for high safety integrity.

Unrivalled performance

  • Process temperatures up to 500°C
  • Low detection limit
  • Negligable zero drift
  • Calibration 6-12 month
  • Fast response

Flexible

  • Compact design
  • Performs in high particulate environments
  • Minimal cross interference
  • Diverse mounting: ideal for ducts, stacks and reactor installations

Easy to use

  • Simple to install and operate
  • Robust and reliable
  • Space saving
  • Digital communications
  • Modbus over Ethernet
  • User friendly interface and rapid disconnect for easy calibration

Low cost of ownership

  • Intuitive alignment for easy installation and maintenance
  • Non-depleting TDL technology
  • No moving parts, no consumables
  • No sample conditioning system – reduced maintenance costs
  • No hazardous area purge required

Benchmark compliance

  • ATEX, IECEx hazardous area approvals
  • North American hazardous area Class 1 Div 2
  • IP66
  • SIL 2
  • CE approved

Gases sensed, measurements and technologies

The SERVOTOUGH Laser 3 Plus Process is optimized for the measurement of process oxygen in applications under hot or hazardous conditions.

Gas Measurement
Oxygen (O₂)%

Technologies

Tunable Diode Laser

Certificates

  • ATEX Cat 3 (Gases)
  • IECEx Zone 2 and Zone 21
  • North American Class 1 Division 2 and Zone 2 (Gas and Dust) pending
  • ATEX Cat 21 (Dust)
  • Safe Area / General Purpose
  • CE marked in compliance with ATEX, EMC, LVD and all other applicable directives

Schematics (select to expand)

Size

TRANSMITTER:
131mm width (51/8”) 164mm high (61/2”) 302.4mm deep (119/10”) 

RECEIVER:
110mm width (45/16”) 146mm high (53/4”) 247.6mm deep (93/4”) 

Weight

TRANSMITTER: <3.0 kg (6.6 lbs)

RECEIVER: <2.0 kg (4.4 lbs)

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.”

Rhys Jenkins
Product Manager – Process Photometric Analyzers

Get all the Laser 3 Plus Process resources you need

“Our resource pack for the Laser 3 Plus Process analyzer contains a comprehensive set of information including the product brochure and manual. Download it now for features, benefits and technical specifications about this innovative TDL monitor.”

Rhys Jenkins
Product Manager – Process Photometric Analyzers

Manuals and brochures

Find out more about the advantages offered by the Laser 3 Plus Process – download the product brochure and operator manual

SERVOTOUGH Laser 3 Plus

See the compact, fast-response performance of this innovative analyzer 

Laser 3 Plus Installation

Our expert demonstrates how easy it is to install the Laser 3 Plus

Ammonia Slip Applications

See how the SERVOTOUGH Laser 3 Plus provides an analytical solution for this application

Lasers for Safety and Process Control

Learn about the role of the SERVOTOUGH Laser 3 Plus in fired heater combustion

See for yourself

Our videos give you the chance to watch our products in action and hear from our experts. You can also see our analyzers unboxed, and find out more about our solutions for key applications

SERVOTOUGH Laser 3 Plus

See the compact, fast-response performance of this innovative analyzer 

Laser 3 Plus Installation

Our expert demonstrates how easy it is to install the Laser 3 Plus

Ammonia Slip Applications

See how the SERVOTOUGH Laser 3 Plus provides an analytical solution for this application

Lasers for Safety and Process Control

Learn about the role of the SERVOTOUGH Laser 3 Plus in fired heater combustion

Typical applications

The Laser 3 Plus Process is optimized for process O2 measurements in a wide range of hot or hazardous conditions.

Oxidation control | Inerting | Safety monitoring | Process control | Flare gas monitoring | Combustion control (<500°C) | Coal to chemical

Process heaters and furnaces

A choice of technologies to fit your application

Learn more

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