1-4Figure 1-5 shows how to connect the optional250 ohm load resistor.FIGURE1-5. Conn ecting the HART Communicator with the Load Resistor.
Explosionscan resul t inde ath or serious injury.Befo re connecting the HART
Communicatorin an explo sive atmosphere, make sure the instruments in the
loopare installed in a ccordance with intrinsically safe or nonincendive field
wiringpractices. For intrinsically safe CSA a nd FM wiring connections, see
AppendixC.
WARNING!
HART-compatibleD evice
Power
Supply
+–
Optional250 Ohm
LoadResistor
275-0068A,0275 B01A
NOTE:To temporarilyinstall the optional 250 ohm Load Resistor:
1.Insert the load resistor into the lead set jacks.
2.Open the loop to allow connection of theresistor in series in the loop.
3.Close the loop using the lead set connectors.
–
+