Shielding And Potential Equalization; Degree Of Protection - Endress+Hauser iTEMP HART TMT162 Bedienungsanleitung

Wiring
66
Connection using the Endress+Hauser power supply RN221N
HART ® connection with the Endress+Hauser power supply RN221N
Connection using other power supplies
HART ® connection using other power supplies
4.4

Shielding and potential equalization

Please take note when installing the device:
If screened (shielded) cables are used then the shielding connected to the output (output
signal 4 to 20 mA) must be at the same potential as the shielding at the sensor connection!
When operating in plants with high electromagnetic fields, it is recommended that all cables
be shielded using a low ohm ground connection. Due to the possible danger of lightning
strikes, shielding is also recommended for cables that are run outside buildings!
4.5

Degree of protection

The device conforms to the requirements to NEMA 4X (IP 67) ingress protection. In order to
fulfil an NEMA 4X (IP 67) degree of protection after installation or service, the following
TMT162
T09-TMT162ZZ-04-00-XX-xx-003
T09-TMT162ZZ-04-00-XX-xx-002
Endress+Hauser