Teledyne 200AH 用户手册

 

 

 

Zero Air:   

Ultra Zero Grade Air, 99.999% pure  

Nitrogen: 

Ultra High purity Nitrogen, 99.999% pure 

Typically, the data acquisition system will perform a daily calibration. This consists of switching 
valves to have calibration gas introduced at the sample probe and passing through the entire 
sample induction system. The instrument or data acquisition system’s slope and offset will be 
adjusted to produce the correct response of the system. 

Once per quarter, the M200AH should be calibrated using one of the procedures in Section 7. 
Also a 3 point linearity check (zero, low span, high span) will be performed to confirm system 
linearity. 

It is important to note that when doing a linearity check, the calibration gasses have analysis 
errors. For example if 

 2% standards are being used, the linearity could be theoretically be as 

much as 4% in error, even if the instrument and sample induction system are “perfect”. Teledyne 
API recommends that EPA Protocol 1 (

 1%) gasses be used for linearity checks to minimize 

non-linear responses due to analysis errors of the gas bottles. 

In many applications the NO

2

 concentration is low enough (<5%) that converter efficiency 

checks are not required. If your application requires an efficiency check, refer to 40 CFR, Part 60 
Method 7E for the recommended procedure. Refer to Section 7.11 if automatic converter 
efficiency compensation is required.