Справочник Пользователя для Teledyne gfc 7000ta

 

Teledyne Analytical Instruments 

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The Models GFC 7000TA and GFC 7000TM differ only in specifications; unless clearly differentiated, 
both models in this manual are referred to as the GFC 7000TA for simplification. The GFC 7000TA 
measures carbon dioxide CO

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 by comparing infrared energy absorbed by a sample to that absorbed by a 

reference according to the Beer-Lambert law. This is accomplished by using a Gas Filter Wheel which 
alternately allows a high energy infrared light source to pass through a CO

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 filled chamber and a chamber 

with no CO

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 present. 

The light then travels through the sample cell, which has a folded path. The energy loss through the 
sample cell is compared with the zero reference signal provided by the gas filter to produce an output 
proportional to concentration, with little effect from interfering gases within the sample. A nitrogen purge 
system is provided for the GFC wheel assembly to eliminate the effects of ambient CO

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, if necessary. 

This design produces superior zero and span stability and a high signal-to-noise ratio, allowing excellent 
sensitivity. Multi-tasking software gives real time indication of numerous operating parameters and 
provides automatic alarms if diagnostic limits are exceeded 

 Ranges, 

: 0-2 ppm to 0-2000 ppm, GFC 7000TM: 0-4 ppm to 0-4000 ppm, user 

selectable  

  Gas Filter Wheel for CO

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 specific measurement  

  LCD Graphical User Interface with capacitive touch screen 
  Multi-tasking software allows viewing of test variables during operation  
  Continuous self checking with alarms  
  Bi-directional RS-232 and 10/100Base-T Ethernet (optional USB and RS-485) ports for remote 

operation  

  Front panel USB ports for peripheral devices 
  Digital status outputs to indicate instrument operating condition  
  Adaptive signal filtering to optimize response time  
  Temperature & Pressure compensation  
  Internal data logging with 1 min to 24 hour averages 

This manual has the following data structures: 

1 TABLE OF CONTENTS: 
Outlines the contents of the manual in the order the information is presented.  This is a good overview of 
the topics covered in the manual.  There is also a list of tables, a list of figures and a list of appendices.   

2 SPECIFICATIONS 
This section contains a list of the analyzer’s performance specifications.