Rapidox 1100 Carbon Dioxide Gas Analyser

Product Information

The Rapidox 1100-A carbon dioxide (CO2) analyser is the company’s most cost-effective and versatile range of CO2 gas analysers fitted with an infra-red gas sensor.

The infra-red (IR) CO2 gas sensor is the most common and preferred solution for carbon dioxide measurement providing fast and accurate gas analysis over the range 0-500ppm up to 0-100% CO2 and is particularly suitable for aggressive industrial applications in the presence of flammable gas, hydrogen, helium, argon and VOCs as long as the sample gas is filtered for dust and particles and is non-condensing. IR sensors are highly suitable for measuring gases that absorb infra-red light such as CO2, CO & CH4 particularly in percent levels of concentration.  Different sensor lengths are available to allow different ranges of the gas to be detected hence the importance of selecting the correct range for your application.

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Product Information

The standard R1100-A is available in ranges of CO2 selected at the time of ordering.  0-500ppm  0-1000ppm, 0-2000ppm, 0-3000ppm, 0-5000ppm, 0-1%, 0-3%, 0-5%, 0-10%, 0-30% & 0-100% with a choice of gas fittings on the front or rear of the instrument.  Upgrades to Swagelok fittings (1/4” or 6mm) are available at the time of order.  Each version of our carbon dioxide analyser is available with a choice of internal electric sample pump or vacuum ejector pump.

Special variations of the R1100-A model include:

1)         A stainless steel IP54 instrument version with 316 stainless steel instrument case and sealed gasket joints, designed primarily for the food packaging industry.

2)         A special argon gas version (0-100%) with a modified calibration for use in CO2/Ar gas mixtures.

3)         A special biogas version (0-100%) with a modified calibration for use in biogas (CH4/CO2) gas mixtures.

4)         A 4U bezel mounted version compatible with 19” rack mount systems.

Finally, the Rapidox 1100 carbon dioxide analyser complies with EMC Directive 2004 / 108 / EC. UL/ETL Certification Number: UL-61010-1.


  • Wide choice of IR sensor ranges from ppm to percent meaning more flexibility for the user
  • Thanks to automatic pressure & temperature correction technology, you can be assured of fast and accurate results every time
  • Simple span-gas calibration procedure (with appropriate calibration gas) for after-sale longevity
  • Low maintenance and long-life sensor expectancy – standards expected from a high quality analyser
  • Two fully programmable alarms with open or closed relay for a complete monitoring solution
  • Fully programmable digital and analogue outputs to further enhance the Rapidox 1100’s versatility
  • Software package includes full control of the analyser, live graphing & Excel compatible data-logging
  • Operates on any worldwide mains voltage (90-260VAC) resulting in ease of use wherever you go
  • Options of front or rear gas fittings and bezel mounts (specify on order)
  • The choice between a long-life variable speed pump or vacuum ejector option
  • For more peace of mind, a password protection feature comes as standard
  • Complies with EMC Directive 2004 / 108 / EC. UL/ETL Certification Number: UL-61010-1

Product Specification

Type Measurement
CO2 Sensor Range0-500ppm, 0-1000ppm, 0-2000ppm, 0-3000ppm, 0-5,000ppm, 0-1%, 0-3%, 0-5%, 0-10%, 0-30% or 0-100%
CO2 Sensor Accuracy± 2% of full scale (± 3% of full scale for 500ppm and 1000ppm version)
CO2 Sensor Life Expectancy> 5 years
Sample Connections4mm ID / 6mm OD nipple type Rectus or Swagelock Front or rear positioning
CalibrationRequires 2 user selectable gas compositions Normally zero and span
Warm-up Time3-5 minutes as standards
Voltage outputs0-10V, user programmable
Current Outputs4-20mA linear, user programmable
Digital OutputsRS232 (RS485 option available): data streamed on demand/Modbus RTU/Ethernet
Max Gas Pressure500-1500 mbar absolute
Max Gas Sample Temperature50°C (Z)
Operating Temperature5°C to 35°C
Pump OptionLong life diaphragm pump variable speed 0-1.2 litres per min
Ejector OptionVacuum ejector fitted, running off inlet pressure
Display20 x 4 character OLED display
Supply Voltage90-260VAC, 50/60Hz
Analyser dimensionsBench: 150mm(H) x 253mm(W) x 272mm(D) Panel: 300 x 4µ (177mm(H) x 300mm(W)) Multiplex: 150mm(H) x 263mm(W) x 250mm(D)
Weight3.5kg (4kg with bezel)

Customer Testimonials

“We have always been impressed with both the quality of the products and the professionalism shown from the staff at Cambridge Sensotec. We have used their gas analysis technology in our welding gloveboxes for many years to give our products the cutting edge. We would highly recommend Cambridge Sensotec not only for their product quality, but also their after sales service.”

Ricky Hart, Weldlogic Europe Ltd.