Hardy HI 6300 Series - Manual (Page 3)

Wiring:
1. Remove connectors from the instrument and wire as per markings
found on the connector labels.
2. When using 4 wire sensors place a jumper between Excitation(+)
and Sense(+) and a jumper between Excitation(-) and Sense(-).
3. Grounding of the instrument is recommended by connecting to
either of the 2 screws located left of power connector or right of the
RS-485 connector.