Emerson Rosemount 8712EM Quick Start Manual page 14

Quick Start Guide November 2017
Cable requirements
Shielded twisted pairs or triads must be used. For installations using the
individual coil drive and electrode cable, see Figure 5-2. Cable lengths should
be limited to less than 500 feet (152 m). Consult factory for length between
500–1000 feet (152–304 m). Equal length cable is required for each. For
installations using the combination coil drive/electrode cable, see Figure 5-3.
Combination cable lengths should be limited to less than 330 feet (100 m).
14 Rosemount 8712EM Transmitter with HART Protocol