Siemens SITRANS P500, Operating Instructions Manual, Page: 53 / 238

SITRANS P500 with HART
Operating Instructions, 12/2014, A5E02344528-09
53
Connecting
5
5.1 Basic safety instructions
WARNING
Unsuitable cables and/or cable glands
Danger of explosion in hazardous areas.
•
Only use suitable cables and cable glands complying with the requirements specified in
Chapter "Technical data (Page 197)".
• Tighten the cable glands in accordance with the torques specified in Chapter "Technical
data (Page 197)".
•
When replacing cable glands use only cable glands of the same type.
• After installation check that the cables are seated firmly.
WARNING
Hazardous contact voltage in versions with 4-conductor extension
Danger of electrocution in case of incorrect connection.
• Observe the instructions in the 4-conductor extension operating manual for the electrical
connection.
WARNING
Improper power supply
Danger of explosion in hazardous areas as result of incorrect power supply, e.g. using
direct current instead of alternating current.
• Connect the device in accordance with the specified power supply and signal circuits.
The relevant specifications can be found in the certificates, in Chapter "Technical data
(Page 197)" or on the nameplate.
WARNING
Unsafe extra-low voltage
Danger of explosion in hazardous areas due to voltage flashover.
• Connect the device to an extra-low voltage with safe isolation (SELV).