FYRITE Classic®

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Gas Analyzers

Fyrite® - Gas Analyzers

Fast, accurate and easy to use instruments for measuring and analyzing carbon dioxide or oxygen.

Fyrite® Analyzers are available for either CO2 or O2 analysis, and each model is produced in three scale ranges. All six instruments are similar in appearance and size, but differ in important construction details, as well as in the absorbing fluids. Each model, therefore, is suitable only for the particular gas analysis or scale range for which it has been manufactured. Accuracy is within ±1/2% CO2 or O2.

Fyrite® absorbing fluid is selective in the chemical absorption of carbon dioxide or oxygen, respectively. Therefore, the Fyrite®'s accuracy, which is well within the range required for industrial and professional applications, does not depend upon complicated sequential test procedures. In addition, Fyrite® readings are unaffected by the presence of most background gases in the sample.

The number of tests possible with one fluid charge depends on the concentration of samples being tested. At midpoint scale reading the CO2 fluid is good for approximately 300 gas samples and the O2 fluid for 100 tests. The need to replace fluid can be easily determined with a simple test, and replacement is an easy procedure. These test procedures, as well as other good information, are provided in the Fyrite® manual 11-9026.

Fyrite® Indicators have a broad range; they may be exposed to ambient temperatures from -30° to 150°F, and gases up to 850°F may be tested with standard aspirator sampling equipment (special sampling equipment for higher gas temperatures or dry gases is available). For temperatures above 1400°F, a ceramic sampling tube is available.

Ordering Information

Single Kits
Single Kits contain either a Fyrite® CO2 or a Fyrite® O2 Indicator. Sampling Assembly and a carrying case.
Duplex Kits
Special Fyrite® Kits containing various combinations of Oxygen and Carbon Dioxide Indicators.
Repair Kits
One bottle of Fyrite® fluid, valve plunger gasket, top gasket, screws, diaphragm, and envelope of filtering material.
Refill Kits
Two bottles of Fyrite® fluid, top gasket, screws and envelope of filtering material.
USA Single Kits(1)Range
CO2 Testing
10-50530-7.6%
10-5000(2)0-20%
10-50320-60%
O2 Testing
10-50540-7.6%
10-50110-21%
10-50460-60%
Export Single Kits (3)Range
CO2 Testing
10-50830-7.6%
10-50010-20%
10-50330-60%
O2 Testing
10-50840-7.6%
10-50120-21%
10-50420-60%
Fyrite®Fluid Range
CO2
10-51000-7.6%
10-50570-20%
10-50570-60%
O2
10-51030-7.6%
10-50600-21%
10-50600-60%
Repair KitsRange
CO2
11-70530-7.6%
11-70520-20%
11-70520-60%
O2
11-70550-7.6%
11-70540-21%
11-70540-60%
Duplex KitsCO2 RangeO2 Range
10-50200-20%0-21%
10-5021(4)0-20%0-21%
10-5090(5,6)0-7.6%0-7.6%
10-5106(5,6)0-7.6%0-21%
10-5111(5,6)0-60%0-21%
Refill KitsRange
CO2
not available0-7.6%
11-70470-20%
11-70470-60%
O2
not available0-7.6%
11-70500-21%
11-70500-60%
  • (1) Domestic shipments only
  • (2) Also includes Fire Efficiency Finder
  • (3) Export use only. Kits shipped without fluid.
  • (4) Export only
  • (5) Special order only; check factory for price and availability
  • (6) No export equivalent.

Note: United States and Foreign Postal Regulations prohibit Fyrite® fluid, in or out of any unit, from being shipped parcel post.