1. Connect the device to the system via the existing protective ground connection ⑧ by
observing the torques.
–
Use a cable with a diameter of 1 … 4 mm
2
.
2. Insert the connecting cable through the cable gland ③.
3. Connect the wires to the connection terminals ④ "+" and "-", observing the polarity and the
torques.
– Use wires with a diameter of 0.5 ... 2.5 mm
2
.
– If you use stranded wire used, you need a ferrule.
4. Apply the shield to the screw of the ground terminal ⑨.
The screw of the ground terminal is electrically connected to the external protective
conductor connection.
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.
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)
Connecting
6.2 Connecting the device
SITRANS P320/P420 with 4 to 20 mA/HART
70 Operating Instructions, 11/2019, A5E44852162-AC
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