The Fyrite Classic is a tried-and-true instrument for measuring oxygen and carbon dioxide. The Fyrite Classic is available for O₂ or CO₂, and each gas type of Fyrite is available in multiple ranges to meet a variety of applications, from combustion analysis to incubators to anesthesiology.

The Fyrite Classic contains fluid that is specifically designed to absorb O₂ or CO₂ with minimal cross-sensitivities to other gases, which leads to accurate readings. It is easy to test the fluid’s strength and replace it when needed - which means no need to return the unit for service and no downtime.

Bacharach Fyrite Classic ×

Fyrite Classic For measuring O2 and CO2 Several versions available - please see chart below Includes Fyrite, sampling probe assembly, carrying case and user manual

Fyrite employs the well known "Orsat" method of volumetric analysis involving chemical absorption of a sample gas, such as carbon dioxide (CO₂), or oxygen (O₂). The reagent used to absorb CO₂ is potassium hydroxide (dyed red). Chromous chloride (blue) is the absorbent for O₂. The unique feature of Fyrite is that the absorbing fluid is also used as the indicating fluid so that one vessel takes the place of both measuring burette and absorption pipette.

The Fyrite body is molded of clear, high-strength plastic, has top and bottom reservoirs, and has a center tube connecting the two reservoirs. The bottom reservoir is filled with the absorbing fluid, which extends about 1/4 inch into the bore of the center tube when the instrument is held upright. The scale position is mounted to one side of the center tube and is adjustable.

The following chart shows a brief overview of the Fyrite Classic product line:
 

Domestic P/N	International P/N	O2 0 to 7.6%	O2 0 to 21%	O2 0 to 60%	CO2 0 to 7.6%	CO2 0 to 20%	CO2 0 to 60%
0010-5054	0010-5084	●
0010-5011	0010-5012		●
--	0010-5042			●
0010-5053	0010-5083				●
0010-5000	0010-5001					●
0010-5032	0010-5033						●
0010-5020	0010-5021		●			●
0010-5090	--	●			●
0010-5106	--		●		●
0010-5111	--		●				●

All kits include:

• Fyrite(s) as indicated in table above
• Sampling probe assembly
• Carrying case
• User manual

Note: Domestic Fyrites are filled with fluid from the factory but international Fyrites are not filled for export reasons. International Fyrites must be filled using a Fyrite fluid kit (ordered separately) before they can be used.