Bacharach Fyrite Classic Manual De Propietario

 

Instruction 0011-9026

Page 8

For maximum accuracy, it is important to form the habit of follow ing a standard 

procedure in this operation and to use the same procedure both before adjusting scale 

zero and before reading percent CO

2

 or O

2

 .

The FYRITE temperature should be at or close to the temperature of the working 

environment where the analysis is being made and should not be subject to sudden 

temperature changes. If FYRITE is carried from cooler to warmer location or vice 

versa, expose FYRITE to new temperature condition to permit uniform temperature 

stabilization. Usually 15 or 20 minutes will suffi ce, except when extreme temperature 

variations are involved. Temperature stabilization can also be accelerated by invert-

ing FYRITE frequently.

The gas sample as it enters FYRITE should be cooled (or warmed if sampling cool 

gases) to same (ambient) temperature as the FYRITE.

Capacity of Standard Aspirator Bulb and Sampling Assembly (Part # 11-7029) to cool 

the gas sample is suffi cient if the temperature of gas being sampled does not exceed 

850°F (454°C), even where a large number of consecutive samples are required if there 

is an interval of not less than 5 minutes between samples.

FYRITE indicators operate over a wide temperature range. They may be exposed to 

ambient temperatures from –30° to 150°F (–34° to 66° C). Gases up to 850° F (454° C) 
may be tested with Standard Aspirator Sampling Assembly (11-7029).  

20

16

12

8

4

%CO2

0