Specifications

PAGE
8.2
Calibration of Drager IR CO
2
! A cylinder of nitrogen or synthetic UPP Air, or a SODA LIME trap or a DRAGER
PIPE to trap the carbon dioxide.
! A cylinder of standard mixture of 1% of carbon dioxide in air (or nitrogen);
! A five liters TEDLAR gas bag.
What you need to calibrate the Drager
When you need to calibrate the Drager
The is a quite stable detector, the thermal stabilization features
allows the instrument to maintain it calibration for long periods. The
calibration is necessary only when there is a drastical change in the
barometric pressure.
Drager
www.westsystems.com
Portable flux meter handbook
Release 5.39 December 2005
Five liter tedlar gas bag
The reading of Drager is affected by a "noise" that normally do not exceed the
0.5% of the full scale value: if the full scale value is set to 20000 ppm the noise
normally do not exceed 100 ppm peak to peak. This noise do not affect the
evaluation of flux except when the increasing of the concentration due to the flux
is less than noise...
If you cannot appreciate the variation of concentration you've to reduce the full
scale value of your Drager. Please have a look of the chapter 3.
Note on the reading of Drager
P
1
P
2
AWM3300V
B
A
Brombach
Pump
ASF THOMAS
ASF THOMAS
Inlet
Outlet
Filter
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>
WEST Systems
www.westsystems.com
Portable flux meter handbook
Release 10.0 December 2007
WEST Systems
www.westsystems.com
Portable flux meter handbook
Release 10.0 December 2007