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2
Safety requirements and installation instructions
2 Safety requirements and installation instructions
2.1
Installation instructions
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The device is associated equipment with an EPL [Ga], [Da] (category 1) of the ignition protection
type "intrinsic safety" and can be installed as a device with the EPL Gc (category 3) in the potentially
explosive area of Zone 2. The intrinsically safe electrical circuits can be routed up to Zone 0 /
Zone 20. It meets the requirements from the following standards. Precise specifications can be
found in the EU declaration of conformity which is supplied; the latest version is also on our website:
EN 60079-0, EN 60079-7, EN 60079-11, EN 60079-15
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The installation, operation, and maintenance must be carried out by personnel with electrotechnical
qualifications. Follow the described installation instructions.
Adhere to the applicable conditions and safety regulations (including national safety regulations)
and the general rules of engineering during set-up and operation.
The safety data can be found in this document and the certificates (EC type examination certificate,
if necessary additional approvals).
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Opening or modifying the device is not admissible. Do not repair the device yourself; instead, you
should replace it with an equivalent device. Repairs must only be performed by the manufacturer.
The manufacturer is not liable for damage resulting from violations of this.
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The protection type IP20 (IEC/EN 60529) of the device is intended for a clean and dry environment.
Do not expose the device to any mechanical and/or thermal stresses that exceed the described lim-
its.
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The device complies with the EMC regulations for industrial areas (EMC class A). It may cause EMC
problems if used in residential areas.
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The device must be taken out of operation if it is damaged, has been improperly stressed or stored,
or malfunctions.
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The products must be installed according to all relevant standards for electrical systems in poten-
tially explosive areas.
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Disconnect the device from all effective energy sources if they are not a SELV or PELV electrical
circuits when carrying out installation, repair, or maintenance work.
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Only use copper cables as connecting cables.
2.2
Intrinsic safety
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The device is approved for intrinsically safe (Ex i) electrical circuits up to Zone 0 (gas) and Zone 20
(dust) of the Ex area. The safety values of the intrinsically safe equipment and the connecting lines
must observed during interconnection (IEC/EN 60079-14) and must adhere to the specified values
from these installation instructions/the EU type examination certificate.
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During measurements on the intrinsically safe side, make sure to observe the valid conditions rele-
vant to the interconnection of intrinsically safe equipment. Only use the approved measuring devic-
es in intrinsically safe electrical circuits.
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If the device has been used in non-intrinsically safe electrical circuits, using it again in intrinsically
safe electrical circuits is prohibited! Clearly mark the device as not intrinsically safe.
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