Signal Instruments USA Microprocessor Control

Advanced Gas Analyzers

2-Year Warranty
Applications Gases Technologies
Series 4 Pulsar
Pulsar nondispersive infrared (NDIR) analyzers offer superior performance in a wide variety of applications for the monitoring of all infrared absorbing gases.

Gas Filter Correlation (GFC) is the best type of nondispersive infrared (NDIR) for combustion analysis. Instead of a dual beam sample cell and a separate reference cell, this method uses only a single cell for both sample and reference. This method reduces problems with cell contamination causing a difference in readings. Also, we fill the filter wheel with our own proprietary gas mixtures to eliminate interference from other gases (e.g., H2O or CO2) when measuring. For example, ppm level CO is easily measurable in the presence of percent levels of these other gases.

Up to 5 gases can be measured using a single Analyzer. We offer various configurations and options to suit many applications, including internal gas switching for automatic calibration, any combination of separate or combined sample inlets for all of the measurement channels, sample pumps, etc.

Our unique design means that we can cater to many combinations of gases. Gases such as CO, CO2, NO, SO2, CH4, HCl and O2 can be included in many combinations of ranges; for example, a 100ppm CO range can be used alongside 20% CO2, 1000ppm NO, 100ppm SO2, and 25% O2.

Pulsar-class monitors are Series-4 instruments and provide superior levels of linearity throughout the 10,000:1 range ratio.

Measurement technique(s):

Gases & Full-scale Ranges:

  • CH4 (methane): 0.1, 1, 10, 20%
  • CO (carbon monoxide): 0.1, 0.5, 10, 20%
  • CO2 (carbon dioxide): 0.1, 1, 20, 100%
  • HCl (hydrogen chloride): 0.1, 1%
  • NO (nitric oxide): 0.1, 1%
  • N2O (nitrous oxide): 0.1, 1%
  • O2 (oxygen): 5, 10, 25%
  • SO2 (sulfur dioxide): 0.1, 1%

Pulsar Features:

Pulsar options:


  • Automotive exhaust emissions
  • Combustion analysis
  • Continuous Emissions Monitoring Systems (CEMS)
  • Environmental compliance
  • Gas purity
  • Gas turbine emissions
  • OEM system integration
  • Process monitoring
  • Research

Available detectors:

  • CH4 GFC 0-1kppm
  • CH4 GFC 0-10kppm
  • CH4 GFC 0-100%
  • CO GFC 0-1kppm
  • CO GFC 0-5kppm
  • CO GFC 0-10%
  • CO GFC 0-20%
  • CO Purity 99-100%
  • CO2 GFC 0-1kppm
  • CO2 GFC 0-10kppm
  • CO2 GFC 0-10%
  • CO2 GFC 0-20%
  • CO2 GFC 0-100%
  • CO2 Purity 95-100%
  • HCl GFC 0-1kppm
  • HCl GFC 0-10kppm
  • N2O GFC 0-1kppm
  • N2O GFC 0-10kppm
  • NO GFC 0-1kppm
  • NO GFC 0-10kppm
  • O2 Electrochemical
  • O2 Paramagnetic
  • SO2 GFC 0-1kppm
  • SO2 GFC 0-10kppm

Pulsar datasheet

We offer any combination of analyzers built into 19" rack sampling systems for your application. If your requirements are not in our standard product range, contact us about our customized system solutions.

Legacy Series III 7000M/7000FM (single IR gas) and 9000MGA (dual IR gases), both available with (optional) paramagnetic O2, remain available.

Signal USA
355 North York Rd.
Willow Grove, PA 19090
Tel: 215.830.8882
Fax: 215.830.8922
Toll free: 866.SIGNAL.U
Hours of operation:
M-F 8AM to 6PM Eastern Time
weekends and 24-hour emergency service by agreement
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