MultiGas Sensors

Analyze up to 4 different gases in only one table-top casing simultaneously with 3 modules. The modular components enable flexible adaptation of the measuring system to individual measuring tasks.

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Brand
Modular sensor design
Configurations and measurement ranges
Table of Detection Limits
Available arrangements

Brand

Ritter

Ritter is a German manufacturer specializing in high-precision gas meters, gas sampling equipment, and laboratory instruments. Their volumetric gas meters and biogas analyzers are widely used in laboratories, research institutions, and biogas production facilities for accurate gas flow and composition measurements. Ritter products are valued for their durability, accuracy, and resistance to aggressive gases. As a distributor of Ritter in Canada, Avensys delivers advanced gas metering technologies to laboratories and industrial clients seeking precision and reliability in their gas analysis processes.

Modular sensor design

Analyse up to 4 different gases plus pressure and humidity simultaneously In order to adapt gas analysis as flexibly as possible to individual measurement tasks, the single components were designed modularly. This resulted in a »modular system« in which the various photometric components such as detectors, emitters, measuring sample cell, etc. can be assembled user-specifically.

With this sophisticated sensor design, customer-specific applications can be realized without needing a completely new development. The modularity makes replacement and maintenance considerably easier when servicing is required. In contrast to this design, common completely glued gas sensors can only be replaced as a complete unit thus generating high follow-up costs (total cost of ownership) in case of maintenance. Optionally, modules can also be equipped with a sensor for oxygen, pressure and humidity.

Have a look at our brand new RITTER MultiGas Sensors brochure!

Configurations and measurement ranges

	Measuring ranges / Full scale value (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
CO₂
CO
N₂O
CH₄
C_nH_m^*
CF₄
SF₆
H₂O	Measurement ranges on request
O₃
CL₂
H₂S
SO₂
NO₂
NO

Infrared module NDIR Ultraviolet module NDUV

^* Calibration with Propane

Table of Detection Limits

	Detection Limits / % of Full Scale Value (F.S.)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm
CO₂	< 0.1%	< 0.1%		< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%		< 0.3%	< 0.3%
CO	< 0.2%	< 0.2%	< 0.2%		< 0.2%	< 0.2%	< 0.2%	< 0.2%	< 0.3%	< 0.5%	< 0.5%
N₂O	< 0.1%	< 0.1%	< 0.1%						< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.3%
CH₄	< 0.1%	< 0.1%	< 0.1%		< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.3%	< 0.5%
C_nH_m^*	< 0.1%	< 0.1%	< 0.1%		< 0.2%	< 0.2%	< 0.2%	< 0.2%	< 0.5%	< 0.5%
CF₄	< 0.2%	< 0.2%	< 0.2%
SF₆	< 0.1%	< 0.1%	< 0.1%					< 0.2%		< 0.5%			< 0.3%	< 0.3%
H₂O	Measurement ranges on request
O₃								< 0.1%	< 0.1%	< 0.1%	< 0.2%		< 0.5%	< 0.5%	< 0.5%
CL₂			< 0.1%		< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.2%		< 0.5%
H₂S							< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.2%		< 0.5%
SO₂					< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.1%	< 0.5%	< 0.5%	< 0.5%
NO₂								< 0.1%	< 0.1%	< 0.1%	< 0.2%	< 0.2%	< 0.5%	< 0.5%	< 0.5%
NO								< 0.1%	< 0.1%	< 0.1%	< 0.2%	< 0.2%

Definition of Detection Limit

The Detection Limit is the smallest measurement value which can be obtained with a specific uncertainty. This uncertainty includes the resolution, noise and stability of the gas sensor for a specific gas and specific measurement range. For evaluation of the detection limit value, several single measurements are taken at the identical measurement conditions. With the obtained single measurement results the standard deviation “Sigma” (σ) is calculated. The values given in the table equal the triple amount of Sigma.

Available arrangements

Arrangement		Sensor 1 ^(*)	Sensor 2 ^(*)	Sensor 3 ^(*)	Options / Additional sensors ^(**)
MultiGas mono 1 Sensor + options	1.1	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O			O₂	P	H
MultiGas mono 1 Sensor + options	1.2	O₃ CL₂ H₂S SO₂ NO₂ NO			O₂	P	H
MultiGas duo 2 Sensors + options	2.1	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O		O₂	P	H
	2.2	O₃ CL₂ H₂S SO₂ NO₂ NO	O₃ CL₂ SO₂ NO₂		O₂	P	H
	2.3	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	O₃ CL₂ SO₂ NO₂		O₂	P	H
MultiGas trio 3 Sensors + options	3.1	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	O₂	P	H
	3.2	CO₂ CO N₂O CH₄ C_nH_m^* CF₄ SF₆ H₂O	O₃ CL₂ SO₂ NO₂	O₃ CL₂ SO₂ NO₂	O₂	P	H
	3.3	SO₂	NO₂	NO	O₂	P	H

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