Siemens SITRANS TH100Slim Compact Operating Instructions page 42

Connecting
5.1 Basic safety notes
Unsuitable cables, cable glands and/or plugs
Risk of explosion in hazardous areas.
• Use only cable glands/plugs that comply with the requirements for the relevant type of
• Tighten the cable glands in accordance with the torques specified in Technical data
• Close unused cable inlets for the electrical connections.
• When replacing cable glands, only use cable glands of the same type.
• After installation, check that the cables are seated firmly.
Improper power supply
Risk of explosion in hazardous areas as result of incorrect power supply.
• Connect the device in accordance with the specified power supply and signal circuits. The
NOTICE
Ambient temperature too high
Damage to cable sheath.
• At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
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 "Non-sparking nA/ec" (Zone 2) are regulated in the
42
WARNING
protection.
(Page 79).
WARNING
relevant specifications can be found in the certificates, in Technical data (Page 79) or on
the nameplate.
ambient temperature at least 20 °C (36 °F) higher.
WARNING
energized state in hazardous areas.
relevant certificate.
SITRANS TH100/TH100Slim/TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 07/2021, A5E41865021-AE