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Bedienungs- und Installationsanleitung
Installation- and Operation Instruction
Gasentnahmesonden / Sample Gas Probes
Baureihe / Series 222.xx AMEX
6.3
Connection of the blow back line and the pressure vessel (for GAS 222.21 AMEX, 31
AMEX and 35 AMEX)
DANGER
Explosive gases
Probes with blow back port are
not suited for us with explosive gases!
DANGER
Explosion hazard due to adiabatic compression
Because of adiabatic compression high gas temperature during blow back proce-
dure is possible.
Blow back to explosive gas is not allowed
.
Blow back to
flammable gas
is only allowed with
nitrogen
(or another inert
gas
).
The tubes must be connected with appropriate fittings.
If the sample probe is equipped with a blow back pressure vessel (optional) a manual shut off valve (ball
valve) must be installed at the plant air inlet (inert gas). Blow back of flammable gas is only allowed with
nitrogen (inert gas). Blow back is not allowed with explosive gases
NOTE
Blowback is only possible if the pressure of the available plant air (inert gas) is
higher than the process pressure, i.e. pressure-difference at least 3 bar/43 psi.
DANGER
Break of the pressure vessel
Max. air pressure of the pressure vessel line is 10 bar/145 psi.
6.4 Electrical
connections
!
WARNING
The device must be installed by trained staff only.
!
CAUTION
!
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
26
BX460021, 01/2007 Art. Nr. 90 31 137
Содержание GAS 222.31 AMEX
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