Emerson Rosemount 5408 Quick Start Manual page 26

Quick Start Guide
Figure 8-5: 4-20 mA/HART Communication - Terminal Block with TEST
Terminal
A. Handheld communicator
B. Approved IS barrier (for Intrinsically Safe installations only)
C. HART modem
D. Load resistance (≥250 Ω)
E. Current meter
F. Power supply
G. Blue plug
H. TEST terminal
Note
Blue plug must only be disconnected during loop current measurement
procedure.
26 Rosemount 5408 and 5408:SIS Level Transmitters
May 2019