Rice Lake PR5230 Fieldbus Transmitter - Manual (Page 67)

PR 5230 Instrument Manual Installing the Instrument and Plug-in Cards
Sartorius EN-67
4.3.5 Connecting Load Cells with External Supply
When the load of the load cells is <75 ¥ (e.g. more than 4 load cells with 350 ¥), external load cell supply is
required. In this case, the internal supply is replaced by a potential-free external supply. The neutral wire of
the external supply voltage (0 ext. supply) must be connected to the instrument housing to ensure that the
voltage is symmetrical to 0. The internal supply is not connected!
Caution!
The cable colors shown above are applicable to the connecting cable PR 6135/36.
Before connecting, check the assignment of cable colors in the load cell manual.