Dr. Marino Müller AG combines the strength of over 25 years of instruments sales, service and application support experience. With cutting edge technology from a wide range of partners, Dr. Marino Müller AG delivers robust, cost effective instrumentation systems exceeding customer measurement requirements.

Servomex ServoPro MultiExact

The SERVOPRO MultiExact is designed to meet the process control and product qualification needs of industrial gas producers and users. Now available with our ground-breaking TCD TruRef measurement.

Servomex ServoPro MultiExact


  • Easy to set up and operate
  • Low maintenance
  • Extremely stable and reliable sensors
  • Can measure up to two gases simultaneously
  • RS232/RS485 serial data output
  • Modbus, Profibus, Ethernet communications
  • Simultaneously measures up to 2 gas streams
  • Paramagnetic sensor with temperature control and pressure compensation for ultimate performance
  • Independent autovalidation/ calibration of measurements with option of integrated stream switching valve block
  • Flow Alarm available for each measurement
  • Digital communications - Modbus, Profibus and Ethernet
  • Alarm, fault and calibration history logs
  • Bench top, panel or 19” rack mount

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 dioxide, nitrous oxide, carbon monoxide* and methane* at trace levels – Single beam gas filter correlation photometric technology, which gives a highly stable, sensitive and selective measurement.
  • Argon in oxygen, Nitrogen in Air and Nitrogen in argon: Thermal conductivity measurement using the patented “TRU REF” technology

Typical Applications

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