Emerson HASXEE-IM-HS - page 86

Emerson Process Management GmbH & Co. OHG3-12
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
04/2010
3.3.2 Technical Implementation
A block made of stainless steel contains two
gas paths. Both, the volume of the block and
the mass of the sensors have been minimi-
zed in order to obtain short response times.
To suppress inuences by changing ambient
temperature the block is thermostatted and
isolated against ambience.
The sensors are fully glass packaged to with-
stand aggressive gases.
Fig. 3-9: TC Cell, Exterior View ,
Thermal Isolation Removed
1 Sensor
2 Sample gas inlet and outlet
3 Reference side inlet and outlet
4 Metal block
5 Heater for thermostatting
Fig. 3-10: TC Cell, Sectional View
1 Internal gas path
2 Sample gas inlet and outlet
3 PT 100 sensors
4 Metal block
5 Lid
3.3 Thermal Conductivity Measurement
1
2
3
4 5 1 3 4 52