Teledyne t320u Manuale Utente

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Communications Setup and Operation 
Teledyne API – Model T300/T300M CO Analyzer 
160 
6.7.2.3. SELECTING A HESSEN PROTOCOL TYPE 
Currently there are two versions of Hessen Protocol in use.  The original 
implementation, referred to as TYPE 1, and a more recently released version, TYPE 2 
that has more flexibility when operating with instruments that can measure more than 
one type of gas.   
For more specific information about the difference between TYPE 1 and  TYPE 2 
download the Manual Addendum for Hessen Protocol from the Teledyne API web site: 
http://www.teledyne-api.com/manuals/
To select a Hessen Protocol Type press: 
 
 
Note 
While Hessen Protocol Mode can be activated independently for RS-232 
and COM2, the TYPE selection affects both Ports. 
 
06864B DCN6314