Siemens SITRANS DA400 Operating Instructions Manual page 27

Be careful that the closing contact is separated correctly from current circuits that are not intrinsically safe. To
1)
assure a higher electromagnetic resistance, in a disturbed environment shielded conduits should be used for signal
inputs In 1 to In 4.
See also
Terminal assignment (Page 5-3)
Cable gland (Page 5-3)
SITRANS DA400 with protection against explosion
Operating Instructions, 02/2006, A5E00684661-01
Connecting
5.9 Connect the ground
5-11