86
Use in Hazardous Environments
WAGO-I/O-SYSTEM 750
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
11.2 Installation Regulations
For the installation and operation of electrical equipment in hazardous areas, the
valid national and international rules and regulations which are applicable at the
installation location must be carefully followed.
11.2.1 Special Notes Regarding Explosion Protection
The following warning notices are to be posted in the immediately proximity of
the WAGO-I/O-SYSTEM 750 (hereinafter “product”):
WARNING – DO NOT REMOVE OR REPLACE FUSED WHILE
ENERGIZED!
WARNING – DO NOT DISCONNECT WHILE ENERGIZED!
WARNING – ONLY DISCONNECT IN A NON-HAZARDOUS AREA!
Before using the components, check whether the intended application is permitted
in accordance with the respective printing. Pay attention to any changes to the
printing when replacing components.
The product is an open system. As such, the product must only be installed in
appropriate enclosures or electrical operation rooms to which the following
applies:
•
Can only be opened using a tool or key
•
Inside pollution degree 1 or 2
•
In operation, internal air temperature within the range of 0 °C
≤
Ta
≤
+55 °C
or −20
°C
≤
Ta
≤
+60 °C for components with extension number
…/025-xxx
or −40
°C
≤
Ta
≤
+70 °C for components with extension
number …/040-xxx
•
Minimum degree of protection: min. IP54 (acc. to EN/IEC 60529)
•
For use in Zone 2 (Gc), compliance with the applicable requirements of the
standards EN/IEC/ABNT NBR IEC 60079-0, -7, -11, -15
•
For use in Zone 22 (Dc), compliance with the applicable requirements of the
standards EN/IEC/ABNT NBR IEC 60079-0, -7, -11, -15 and -31
•
For use in mining (Mb), minimum degree of protection IP64 (acc. EN/IEC
60529) and adequate protection acc. EN/IEC/ABNT NBR IEC 60079-0 and
-1
•
Depending on zoning and device category, correct installation and
compliance with requirements must be assessed and certified by a “Notified
Body” (ExNB) if necessary!
