Endress+Hauser EngyCal RH33 Handbuch Seite 52

Wiring
4.3.2 Temperature
Connecting the RTD sensors
Temperature transmitter
connection
!
Note!
To ensure the highest level of accuracy, we recommend using the RTD 4-wire connection, as
this compensates for measurement inaccuracies caused by the mounting location of the sensors
or the line length of the connecting cables.
Endress+Hauser temperature sensors and transmitters
Connection for TR10 RTD
sensor
Connection of TMT181,
TMT121 temperature
transmitter
24
1 = 4-wire connection, 2 = 3-wire connection, 3 = 2-wire connection
Terminals 1, 2, 5, 6: T hot
Terminals 3, 4, 7, 8: T cold
1 = without external power supply of the transmitter, 2 = with external power supply of
the transmitter
Terminals 52, 53: T hot
Terminals 54, 55: T cold
EngyCal® RH33
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Endress+Hauser