Siemens SITRANS P Operating Instructions Manual page 70

Connecting
6.2 Connecting the device
1. Connect the device to the system via the existing protective ground connection
observing the torques.
– Use a cable with a diameter of 1 ... 4 mm
2. Insert the connecting cable through the cable gland
3. Connect the wires to the connection terminals
torques.
– Use wires with a diameter of 0.5 ... 2.5 mm
– If you use stranded wire used, you need a ferrule.
4. Apply the shield to the screw of the ground terminal
The screw of the ground terminal is electrically connected to the external protective
conductor connection.
5. For devices with intrinsically safe protection type, use a supply unit that corresponds to the
requirements of the relevant type of protection.
See also
Torques (Page 238)
70
NOTICE
Incorrect measured values with incorrect grounding
The device must not be grounded using the "+" connection. It may otherwise malfunction
and be permanently damaged.
● If necessary, ground the device using the "-" connection.
.
2
③
.
④
"+" and "-", observing the polarity and the
.
2
⑨
.
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
⑧
by