Yokogawa HART Communicator YHC5150X - Manual (Page 35)

29
4.2 HART ® Connections
HART
®
connections are made using two standard banana jacks (3/4” center) located at the top end of the
communicator. Refer to the following diagram. Polarity is not a concern for HART
®
connections so both
jack collars are black. Yokogawa supplies a HART ® lead kit (1W-A900529-00014) complete with mini-
grabber connections and a 250 Ω load resistor with each unit.
Consult the transmitter manual for proper connection in hazardous locations
For low load loops (less th
an 250 Ω), a 250 Ω resistor may be needed in the loop to insure reliable HART ®
communication. Yokogawa
supplies a 250 Ω load resistor in the form of a standard adaptor (1W-A36821).
Refer to the following diagram for connection details.
HART ® connections are standard banana jacks
(3/4” center)