Emerson Process Management HASX2E-IM-HS Carbon Monoxide Alarm User Manual


 
Emerson Process Management GmbH & Co. OHG3-14
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
3.3.2 Technical Implementation
A block made either of aluminum, stainless
steel or hastelloy contains two gas paths.
Both, the volume of the block and the mass
of the sensors have been minimized in order
to obtain short response times. To suppress
inuences by changing ambient tempera-
ture the block is thermostatted and isolated
against ambience.
The sensors are fully glass packaged to with-
stand aggressive gases.
Fig. 3-12: TC cell, exterior view ,
thermal isolation removed
1 Sensor
2 Sample gas inlet and output
3 Reference side inlet and output
4 Metal block
5 Heater for thermostatting
Fig. 3-13: TC cell, sectional view
1 Internnal gas path
2 Sample gas inlet and output
3 PT 100 sensors
4 Metal block
5 Lid
3.3 Thermal Conductivity Measurement
1
2
3
4 5
1 3 4 52