Buhler GAS 222.30 Ex2, Installation And Operation Instructions Manual

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GAS 222.30 Ex2
1 Introduction
1.1 Intended Use
The sample gas probe is intended for installation into gas analysis systems in commercial applications.
It may be operated in a Zone 2, explosion class IIC, explosive gas atmosphere which is rarely and only temporarily explosive. Zone
2 explosive gas atmospheres may be extracted with or transported with these probes.
The explosion protection markings on the probes are:
ATEX:
II 3G Ex ec
1
mb
2
IIC T3/T4 Gc
IECEx: Ex ec
1
mb
2
IIC T3/T4 Gc
1
Only for versions with terminal box.
2
Only for versions with solenoid valve.
Passing through gases
Flammable gases above the UEL may only be blown back with inert gases. Flammable gases from 25 % LEL and up to the UEG
may be blown back provided the operator ensures the blown back gas is not and cannot be explosive. For safety reasons we re-
commend only using inert gases in these cases as well.
Blowing back explosive atmospheres (range from UEG to OEG) with the probes is prohibited due to possible adiabatic compres-
sion (high blowback pressure against contaminated filter). The operator is responsible for compliance with these conditions tak-
ing into account his risk assessment.
Sample gas probes are among the main components in a gas conditioning system.
– Therefore also note the related drawing in the data sheet in the appendix.
– Before installing the device, verify the listed technical data meet the application parameters.
– Further verify all contents are complete.
Please refer to the type plate to identify your model. In addition to the job number it also contains the item number and model
designation.
Please note the specific values of the device when connecting, and the correct versions when ordering spare parts.
1.2 Type Plate
Example:
GAS 222.30 Ex2
000053273 462223000192300111111 001
Manufacturer and address
Type designation
Order no., item no.
Blast protection marking
IECEx certificate number
Year of manufacture
II 3G Ex ec IIC T4 Gc
IECEx IBE 17.0002X
Read manual! Year: 2017
Bühler Technologies GmbH
Harkortstr. 29 D-40880 Ratingen
1.3 Contents
– 1 x Sample gas probe
– 1 x Flange gasket and screws
– Product documentation
– Connection and mounting accessories (only optional)
2 Bühler Technologies GmbH BE460064 ◦ 08/2019