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Kaiser Raman Optograf Process Analyzer

Optograf Gas Analyzer front view

Turn-key process Raman analyzer for quantitative chemical composition measurements

The Kaiser Raman Optograf process analyzer is an industry-leading, turn-key, laser-based analyzer that provides quantitative chemical composition measurements using Raman spectroscopy. The design of the Optograf process analyzer incorporates customer requirements for serviceability and hazard-area certification, provides a compact footprint, and minimizes utilities consumption. The high optical efficiency of the Optograf process Raman analyzer makes it ideal for measurement of gas-phase samples.

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Kaiser Raman Optograf Gas Analyzer Calibration front view

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  • Non-destructive analysis of gases, including homonuclear diatomics (H2, N2, O2)
  • Compact, smaller than most wall-mount GCs
  • Can replace up to four traditional analyzers with a single base unit and four probes
  • Rugged with minimal utility requirements, no sample transport, and no consumables (columns, valves, gases, pumps)
  • Minimal analyzer technician time with maximum technician safety (no toxic gases are transported to the analyzer)
  • Measures four streams simultaneously for faster multi-channel results
  • -20°C to + 50°C operating environment

Field of application

Process measurement points:

  • Steam methane reformers
  • Gasifiers (coal, petcoke, waste, biomass)
  • Shift converters
  • Hydrotreaters
  • Hydrocrackers
  • CO2 removal
  • Finished product synthesis loops

Typical industries:

Features and Specifications

Measuring principle
Raman spectroscopy

Laser wavelength
532 nm

Spectral coverage
150-3425 cm-1 (532 nm)

Operating Temperature: -20°C to +50°C
Humidity: 20–80% RH, non-condensing

Input Voltage: 100-240 VAC; 50-60 Hz standard
Max power: <300 Watts on startup; <200 Watts typical

Warm-up time
Base model: 120 minutes

Unit dimensions (mm)
(W x H x D) 18.0 in x 32.85 in x 10.0 in (45.72 cm x 83.44 cm x 25.4 cm)

Weight (kg)
61.2 (135 lb)

Number of probes
Up to four, each with a dedicated laser for simultaneous measurements

Connection Interface
Modbus (TCP/IP or RS485)

IP 56 Wall-mounted, sealed/purged enclosure


Documents/ Manuals/Software


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2020 Pharma Innovation Award

Our Kaiser Raman bIO-PRO, KS bioprocessing probe was recently selected as a 2020 Pharma Innovation Award winner by Pharma Manufacturing Magazine!

The Kaiser Raman bIO-PRO, KS probe provides fast, accurate measurement of key bioprocess variables from lab-to-process. It is an exciting advancement in our already well-established Kaiser Raman bioprocess product portfolio.

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Learn how Kaiser Raman technology helped Nicro eliminate time-consuming offline sampling in favor of real-time monitoring of critical parameters in fermentation processes.

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2021 Coblentz Society William Wright award recipient, Dr. Ian Lewis


2021 Williams-Wright Award

Dr. Ian R. Lewis, Director of Marketing at Kaiser Optical Systems, has been named the 2021 Williams-Wright Award recipient by The Coblentz Society for his significant contributions to vibrational spectroscopy. The award was presented during the 2021 Pittcon Conference & Expo.

Read award announcement