Endress+Hauser ITEMP HART TMT112 Manual Del Usuario página 15

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Connection HART communication
Device configurator SFX100, hand operating module DXR375 or Commubox
FXA191 or FXA195 in combination with PC and Endress+Hauser operating
software (See "Operation" on page 16.).
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A = Connection HART
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A* = Connection HART
B = PLC with passive input
C = The measurement circuit must have a load of at least 250 . If using the
Endress+Hauser power supplies RNS221 and RN221N this resistance is
already installed in the unit and is therefore not required externally!
communication directly to the transmitter
communication to a power supply
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