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Communications Setup and Operation Teledyne API – Model T300/T300M CO Analyzer
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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