SERVOTOUGH hazardous area

The DF-140E delivers reliable oxygen results in testing environments

The DF-140E allows for reliable oxygen measurement in a wide variety of environments, including outdoors and in explosive environments with a NEMA 7 remote sensor enclosure. Using the revolutionary non-depleting E-Sensor, the DF-140E delivers reliable readings without frequent recalibration and periodic sensor replacement.

Reliable results in a testing range of hazardous environments

The DF-140E allows for oxygen measurement in a wide variety of environments, including outdoors in a NEMA 4x enclosure and in explosive environments with a NEMA 7 remote sensor enclosure.

Using highly stable Coulometric sensing technology, the DF-140E delivers reliable readings without frequent recalibration and periodic sensor replacement. It is specifically designed for reactor process control, pressure wing absorber nitrogen skids, and blanketing and inerting applications. With the STAB-EL system option it neutralizes trace contaminants, enabling accurate measurement in the presence of acid gases.

Thanks to its flexible and reliable measuring response, the DF-140E offers considerable cost savings over its product life, and can be configured as a single range or three-range analyzer to meet specific application requirements.

Douglas Barth
Senior Global Product Manager

If you’re building a system, we’re here to help

Our expert team can design, scope and build your gas analysis system, collaborating with you at every stage. We also have the expertise to install, set up and maintain your system for optimum performance across its lifetime. Get in touch to learn more.

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 reliable oxygen sensing

The DF-140E is designed for a wide range of environments, ensuring continued accuracy even in the most hazardous conditions.

Durable

The DF-140E is fitted with either a NEMA 4x or NEMA 7 enclosure, and can be used in Class 1, Division 1 or 2 areas.

Dependable

Requiring minimal maintenance, the DF-140E offers long-term reliability and stability.

STAB-EL option

With this, the DF-140E delivers accurate measurements in the presence of acid gases.

Unrivalled performance

  • Uses industry-leading high stability Coulometric trace and percent O2 sensing with ultra-low drift potential
  • Rapid response in the presence of changeable sample concentrations or flow rates
  • STAB-EL option allows for accurate measurement in the presence of acid gases
  • Manufactured by Servomex – more than 60 years of experience innovating and pioneering gas analysis and thousands of units used in the field every year

 

Flexible

  • Coulometric sensor ideal for upset prone applications
  • Durable – can be used in Class 1, Div 1 or 2 areas
  • Three-range or single-range configuration available

 

Easy to use

  • Factory calibrated for simple set-up
  • Simplified ongoing maintenance requirements
  • NEMA 4x enclosure allows easy installation in non-protected environment

 

Low cost of ownership

  • Long-life Coulometric sensor with five-year warranty
  • Only an annual SPAN calibration needed

 

Benchmark compliance

  • IEC 61010-1
  • Installation Category II, Pollution Degree 2
  • EU EMC Directive
  • EU Low Voltage Directive

Gases sensed, measurements and technologies

Reliable non-depleting Coulometric sensing ensures stable oxygen measurements without the need for frequent recalibration.

Gas Measurement
Oxygen ()

Technologies

Certificates

  • Low Voltage Directive (2002/73/23EEC)
  • EMC Directive (2001/89/336/EEC)

Size

19.7cm (7.75″) Width x 21.6cm (8.5″) Height x 25.4cm (10″) Depth

Weight

7kg (15lbs)

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.”

Douglas Barth
Senior Global Product Manager

Get the full facts about the DF-140E

“Download our DF-140E resource pack to discover all you need to know about this reliable oxygen analyzer. It has comprehensive information about features, benefits, technical specifications, installation and performance.”

Douglas Barth
Senior Global Product Manager

Typical applications

LDesigned for reactor process control, pressure wing absorber nitrogen skids, and blanketing and inerting applications, the DF-140E is a reliable O2 analyzer for hazardous environments.

Reactor process control | Pressure swing absorber nitrogen skids | Blanketing and inerting


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