Teledyne MODEL T703 Manual Do Utilizador

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Operating the T703 Calibrator 
Teledyne API T703 Calibrator Operation Manual 
98    
6.12. SETUP  LVL: SETTING UP AND USING LEADS (DASIBI) 
OPERATING LEVELS 
6.12.1. GENERAL INFORMATION ABOUT LEADS LEVELS 
The T703 calibrator can be equipped with a version of firmware that includes support for LEADS, a data 
collection and analysis system LEADS specifically designed for handling meteorological and environmental data 
particularly when there is a need to integrate data and control instrumentation from several different 
manufacturers.  When an T703 calibrator is equipped with the optional LEADS software is used in conjunction 
with data loggers located central data analysis facility is possible to collect and buffer data between the various 
calibrators, analyzers and metrological equipment remotely located at an air monitoring station. 
Because LEADS was originally developed for use with TNRCC using Dasibi 5008 calibrators, the LEADS 
version of the T703 includes support for Dasibi “Dot” serial data commands and operational “LEVELs”.   
NOTE 
For more information on the LEADS system, please go to 
 
6.12.2. DOT COMMANDS 
The Dasibi “Dot” commands form a text-based (ASCII) data protocol that is transmitted between a control 
computer (XENO data logger in this case) and a calibrator or ambient gas analyzer over an RS-232 connection.  
The details of the protocol are beyond the scope of this document, but in its simplest form the protocol is based 
on a two or three digit integer preceded by a control-A and a period (.) and then followed by a “!” and a two digit 
checksum.   
EXAMPLE: 
^A.xxx!nn 
For further information on dot commands, please contact T-API customer service. 
An T703 equipped with LEADS software can be simultaneously operated over the same COM port using 
standard Teledyne API’s serial data commands and is compatible with APICOM versions 3.7.3 and later which 
include an added feature that allows a user to edit, upload and download level tables. 
07223B DCN6378