Agilent Technologies 990 User Manual

5 Micro GC Channels
C6+ Calorific value calculation
84 Agilent 990 Micro GC User Manual
C6+ Calorific value calculation
For calorific value calculation and application setup, please refer to the “calorific power” section
from the 990-PRO Micro GC Manual or designated energy meter software.
TCD Detector
Each GC channel is equipped with a thermal conductivity detector (TCD). This detector responds
to the difference in thermal conductivity between a reference cell (carrier gas only) and a
measurement cell (carrier gas containing sample components). The construction of a TCD is
such that the changing thermal conductivity of the carrier gas stream, due to components
present, is compared to the thermal conductivity of a constant reference gas stream.
Figure 36. 8m 5CB BF2D for natural gas analysis
Figure 37. 10m Al2O3/KCl BF2D for refinery gas analysis

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English