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2.2 Areas of safe use due to explosion proof performance
The resulting feature explosion proof performance:
III 2G Ex d IIC T6-T5 Gb allows for operation in zones 2 and 1 being explosive atmospheres caused
by gases, vapors or mists, on the surface, while maintaining the following conditions,
II 2D Ex tb IIIC allows for operation in zone 21 and 22 being explosive atmospheres caused by dust
on the surface of the earth.
The specified temperature parameters relate to the explosion safety. In fact, the operating
temperature range can be narrowed down because of the type of the sensor – in particular
cases it may not exceed 40°C.
For detailed specifications, please contact the manufacturer.
In addition, the device meets the requirements of IEC 60079-29-1 Explosive atmospheres Part 29-1: Gas
detectors – Performance requirements of detectors for flammable gases.
2.3 Electromagnetic compatibility
The detector has appropriate electromagnetic compatibility degree suitable for industrial conditions – as
the instrument. That is the reason that the person developing detail engineering and installation should
take care to maintain accordance with concerning requirements – also e.g. of those concerning lightning
protection. It should be remembered that the installation Contractor is responsible for correct installation
functioning in the scope of electromagnetic compatibility.
Conformity to directive does not exclude problems related to this compatibility during the system
installation phase (due to e. g. non-typical equipment operating, etc.). In such situation this problem has to
be solved individually on the base of mutual agreement between Manufacturer(s), installation Contractor
and Customer.
2.4 IP class
The degree of IP protection of the installation can be found in the table 7.
2.5 Other conditions of the working environment
When designing the installation, the following factors should be taken into account:
corrosivity – the device can be installed and used in non-corrosive environments for the materials
used. Although appropriately durable materials and corrosion protection was used for the
construction of the device, the user or designer should conduct a study of the environmental
conditions, taking into account such factors as:
• the presence of gases such as SO
2
, HCl, H
2
S, NH
3
, and other corrosive ones, especially in humid
atmospheres,
• possible changes in ambient temperature and their relevance to the values declared in this
documentation,
in such situations, we recommend the use of the E = SS option, i.e. in the case of acid resistant
steel,
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User's Manual: POD-009-ENG R07