Siemens SITRANS I300 Operating Instructions Manual page 22

Connecting
5.1 Basic safety notes
Uncovered non-intrinsically safe circuits
Risk of explosion in hazardous areas or electric shock when working on non-intrinsically safe
circuits.
If intrinsically safe and non-intrinsically safe circuits are operated in an enclosure with the type
of protection "Increased safety Ex e", the connections of the non-intrinsically safe circuits must
be additionally covered.
● Ensure that the cover of the non-intrinsically safe circuits complies with degree of
● Separate connections of the non-intrinsically safe circuits in accordance with IEC/
Insufficient isolation of intrinsically safe and non-intrinsically safe circuits
Risk of explosion in hazardous areas.
● When connecting intrinsically safe and non‑intrinsically safe circuits ensure that isolation
● Ensure that you observe the device approvals applicable in your country.
Connecting device in energized state
Risk of explosion in hazardous areas.
● Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Devices having the type of protection "Intrinsic safety Ex i" may also be connected in
● Exceptions for type of protection "Increased safety ec" (Zone 2) are regulated in the
NOTICE
Condensation in the device
Damage to device through formation of condensation if the temperature difference between
transportation or storage and the mounting location exceeds 20 °C (36 °F).
● Before taking the device into operation let the device adapt for several hours in the new
22
WARNING
protection IP30 or higher according to IEC/EN 60529.
EN 60079-14.
WARNING
is carried out properly in accordance with local regulations for example IEC 60079-14.
WARNING
energized state in hazardous areas.
relevant certificate.
environment.
SITRANS I300 Isolating power supply with EIA-485 interface
Operating Instructions, 01/2019, A5E45099319-AA