Siemens SITRANS F Series Operating Instructions Manual page 42

Connecting
5.1 Basic safety notes
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
Incorrect selection of type of protection
Risk of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not used
NOTICE
Ambient temperature too high
Damage to cable sheath.
● At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
42
WARNING
is carried out properly in accordance with local regulations for example IEC 60079-14.
WARNING
energized state in hazardous areas.
relevant certificate.
WARNING
permanently unrecognizable on the nameplate.
ambient temperature at least 20 °C (36 °F) higher.
Operating Instructions, 01/2019, A5E44036384-AB
SITRANS FC310