42 TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. E
… 11 Operation
… Parameter description HART®
Menu / parameter Description
R-Connection Sensor connection type relevant for all Pt, Ni, Cu resistance thermometers
• two-wire: Sensor connection type in two-wire technology
• three-wire: Sensor connection type in three-wire technology
• four-wire: Sensor connection type in four-wire technology
2-wire Resistance Sensor line resistance relevant for all Pt, Ni, Cu resistance thermometers with a two-wire circuit
Value range: 0 to 100 Ω
Thermocouple RJ • Internal: Use of internal reference junction of the transmitter when using thermal compensating cable.
• External - fixed: Use of external fixed reference junction of the transmitter when constant thermostat temperature is
used (can be set with ext. Thermocouple RJ).
• Without: no Thermocouple RJ
• Sensor 1: Use of sensor 1 as reference junction for sensor 2
ext. Thermocouple RJ — Relevant for external reference junction, specification of constant external reference junction temperature
Value range: -50 to 100 °C
… / Device Setup / Measured range
Engineering Unit Selects the physical unit for the sensor measuring signal
Units: °C, °F, °R, K, user, mV, Ω, mA
Measured Range Begin Defines the value for 4 mA (adjustable)
Measured Range End Defines the value for 20 mA (adjustable)
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