Siemens SITRANS T Series Compact Operating Instructions page 24

Connecting
4.1 Basic safety notes
Lack of equipotential bonding
Risk of explosion through compensating currents or ignition currents through lack of
equipotential bonding.
• Ensure that the device is potentially equalized.
Exception: It may be permissible to omit connection of the equipotential bonding for devices
with type of protection "Intrinsic safety Ex i".
Unprotected cable ends
Risk of explosion through unprotected cable ends in hazardous areas.
• Protect unused cable ends in accordance with IEC/EN 60079-14.
Loss of degree of protection
When connecting the SITRANS TS100 or TS200 with type protection "Intrinsically safe", ensure
the following:
• Adhere to the requirements for electrical connection seperation.
• Use IP54 rated enclosure.
Lemo plug in hazardous areas
For Lemo plug version (7MC7xxx-xxxx2-xxx) make sure the cable ends are in an environment
free from dust, water, or shock.
Improper laying of shielded cables
Risk of explosion through compensating currents between hazardous area and the
non‑hazardous area.
• Shielded cables that cross into hazardous areas should be grounded only at one end.
• If grounding is required at both ends, use an equipotential bonding conductor.
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WARNING
WARNING
WARNING
WARNING
WARNING
SITRANS TS100/TS200/TS300/TS500/TSinsert/TSthermowell
Compact Operating Instructions, 08/2020, A5E03920348-AF