Gas analyzer ULTRAMAT 23

Due to its multi-component design with UV and NDIR technology for measuring up to three IR-active components and optionally available electrochemical sensors (O2 and H2S measurement), the ULTRAMAT 23 offers high cost efficiency and space savings. 

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Multi-component gas analyzer

ULTRAMAT 23 – a true all-rounder

The ULTRAMAT 23 is an innovative multi-component gas analyzer and can be equipped with the following sensors: IR detector for IR-active gases, UV photometer for UV-active gases, H2S sensor (electrochemical), O2 sensor (electrochemical or paramagnetic), and used accordingly in numerous applications and industries. The integrated automatic calibration function using ambient air is a unique advantage. This means that a test with calibration gases is only necessary once a year. Menu-guided operation in plain text allows users and service personnel to operate the device immediately. Preventive maintenance is made possible by the information in the logbook.

High selectivity due to multi-layer detectors

The multi-layer detectors used guarantee high selectivity and reduced water vapor interference. The measuring cuvettes used are robust and resistant and can be cleaned easily in case of disturbances induced by faults in the sample preparation and subsequent contamination.  The electrochemical oxygen sensor is used to determine the O2 reference variable, and the hydrogen sulphide sensor extends the application range of the ULTRAMAT 23 to applications in biogas plants. The additional use of electrochemical sensors together with NDIR technology in a single basic device saves costs in sample preparation and spare parts inventory.

Technical specifications

Max. number of components 
E.g., CO, CO2, NO, SO2, CH4, O2, H2S
Smallest measuring range 
Component specific: 0–50 / 0–500 vpm 
19" withdrawable unit 

Benefits at a glance

  • Highly cost-effective because calibration gases are not required (AUTOCAL with ambient air, depending on the measuring component) 
  • High selectivity due to multilayer detectors e.g. low cross-sensitivity to water vapor 
  • Cleanable cuvettes: Cost savings through further use in case of contamination 
  • Menu-guided operation in plain text 
  • Open interface architecture (RS 485, RS 232; PROFIBUS, SIPROM GA): Simplified process integration; remote operation and control
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Well trained for excellent handling

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Safety integrated

Safety is key in the process industries. A failure in instruments relevant for safety may have serious implications for humans, the process and the environment. Therefore, a wide range of our process instruments come with on-board safety features for maximum risk reduction.


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