26 EL3060 CONTINUOUS GAS ANALYZERS | OI/EL3060-EN REV. A
Pressure sensor
In which gas analyzers is a pressure sensor installed?
Gas analyzer Pressure sensor
Uras26, Caldos27 installed ex works
Magnos206, Magnos28 installed ex works as an option
Caldos25 not installed
Information for the safe and correct operation of the pressure sensor
• The pressure sensor measures the air pressure inside the housing as
standard. As an option, the pressure sensor is connected to a gas port
(flame barrier) via an FPM tube.
• If the pressure sensor is connected to a gas port, the yellow plastic
screw cap must be screwed out of the connection fittings of the pres-
sure sensor before the gas analyzer is commissioned.
• For a precise pressure correction (see page 122) the connection of the
pressure sensor and sample gas outlet have to be connected to each
other via a T-piece and short lines. The lines must be as short as possible
or – in the case of a greater length – have a sufficiently large internal
diameter (minimum 10 mm) so that the flow effect is minimized.
• If the pressure sensor connection is not connected to the sample gas
outlet, the pressure sensor and the sample gas outlet must be on the
same pressure level for an exact pressure correction.
• Pressure sensor working range: p
abs
= 600 to 1250 hPa
CAUTION
The pressure sensor connection must not be connected to the sample gas
feed path for the measurement of flammable and corrosive gases.
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