Servomex 4100 | Gas Purity Analyser

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Product Description:

Product details:

Servomex 4100 in Holcim Cement Plant

The 4100 is designed to meet the process control and product qualification needs of industrial gas producers and users.

  • Easy to set up and operate
  • Low maintenance
  • Extremely stable and reliable sensors
  • Can measure up to four gases simultaneously
  • External analogue input facilities
  • RS232 / RS485 serial data output
  • Modbus TM communications


Technology Used

Oxygen purity measurement – Servomex’ unique paramagnetic cell, which offers a fast, linear, accurate, highly stable and selective response in a non-depleting rugged package.
Oxygen at trace levels - Servomex’ unique zirconia cell, which offers an accurate and stable measurement in a design that gives a fast response and exceptionally long service life.
Carbon monoxide, carbon dioxide, nitrous oxide, methane at trace levels – Single beam gas filter correlation photometric technology, which gives a highly stable, sensitive and selective measurement.
Carbon monoxide, carbon dioxide, Methane at % levels – Single beam, single wavelength infrared technology, which gives a highly stable, selective measurement.
Moisture at trace levels – externally fitted ceramic impedance dew point transmitter.


  • Simultaneously measures up to 4 gas streams
  • Paramagnetic sensor with temperature control and pressure compensation for ultimate performance
  • Independent autocalibration of all measurements up to 8 isolated analogue outputs and up to 12 relays with follow or freeze option
  • Alarm, fault and calibration history logs
  • Bench top, panel or 19” rack mount

Typical Applications

  • Product purity on air separation plant
  • Process control on air separation plant
  • Monitoring the trace CO2 on scrubbed air inlet to air separation process
  • Bottling/filling plant applications

Service Training

Servomex provides comprehensive maintenance and service contracts for all our products and systems. We are also able to provide extended warranty on our entire range of products.
As part of our commitment to providing valuable aftersales support, we are developing extensive training schemes for customers. If you are interested in attending a course please contact us directly using the service enquiry form.

System Capabilities

Servomex offers a complete system solution covering all aspects of sampling system design, build and project management. Please contact your local Servomex office for further information.



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