GAS 222.20 Ex1
• the handle including O-ring are installed at a suitable
ambient temperature range and filter (where applicable),
• monitoring equipment / protection devices must be con-
nected correctly,
• service and repairs not described in these instructions is
performed by Bühler Technologies GmbH,
• using genuine replacement parts.
• Regulation IEC/EN 60079-14 must be observed when
erecting electrical systems in explosive areas.
• Additional national regulations pertaining to initial oper-
ation, operation, maintenance, repairs and disposal must
be observed.
• These operating instructions are a part of the equipment.
The manufacturer reserves the right to change perform-
ance-, specification- or technical data without prior no-
tice. Please keep these instructions for future reference.
2.2 General Hazard Warnings
The maximum surface temperatures of the probes also vary
based on operating conditions (steam temperature, sample
gas inlet temperature, ambient temperature, fluid flow rate).
When used in explosive areas, also particularly note the re-
lated hazard warnings.
The equipment must be installed by a professional familiar
with the safety requirements and risks.
Be sure to observe the safety regulations and generally applic-
able rules of technology relevant for the installation site. Pre-
vent malfunctions and avoid personal injuries and property
damage.
The operator of the system must ensure:
• Safety notices and operating instructions are available
and observed,
• The respective national accident prevention regulations
are observed,
• The permissible data and operational conditions are
maintained,
• Safety guards are used and mandatory maintenance is
performed,
• Legal regulations are observed during disposal,
• compliance with national installation regulations.
NOTICE
Accessories may limit critical operating parameters of
the base unit
Adding accessories may limit critical operating parameters.
Ambient temperatures, zone classifications, explosion
groups, temperature classes or chemical resistances of ac-
cessories may vary from the base unit.
Always include all technical data in the operating instructions
and data sheets of all components in the safety assessment.
NOTICE
When used in explosive areas
Regulation IEC/EN 60079-14 must be observed when erecting
electrical systems in explosive areas.
Additional national regulations pertaining to initial opera-
tion, operation, maintenance, repairs and disposal must be
observed.
DANGER
Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to
mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER
Toxic, corrosive gas/condensate
Sample gas/condensate may be hazardous to health.
a) If necessary, ensure a safe gas/condensate discharge.
b) Always disconnect the gas supply when performing
maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/condensate
when performing maintenance. Wear appropriate pro-
tective equipment.
DANGER
Explosion hazard
Life and explosion risk may result from gas leakage due to im-
proper use.
a) Use the devices only as described in this manual.
b) Regard the process conditions.
c) Check tubes and hoses for leakage.
DANGER
Danger to life and explosion during installation and
maintenance
The unit must not be worked on (assembly, installation,
maintenance) in explosive atmospheres.
12
Bühler Technologies GmbH
BX460041 ◦ 03/2021
