ABB TTH300 Operating Instruction page 53

TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. G
Menu / parameter
... / Easy Setup
R-Connection S2
2-wire Resistance S2
Thermocouple CJC 2
Ext. CJC Temperature 2
In-output Assignment
PV Unit
PV Lower Range Value
PV Upper Range Value
PV Damping
Description
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
Sensor line resistance relevant for all Pt, Ni, Cu resistance thermometers with a two-wire circuit
Value range: 0 to 100 Ω
Cold junction compensation for thermocouples
• Internal: Use of internal cold junction temperature of the transmitter when using thermal compensating cable.
• External – fixed: Use of external fixed cold junction temperature of the transmitter when constant thermostat
temperature is used (can be set with external cold junction temperature 2)
• None: no thermocouple cold junction compensation (CJC)
• Sensor 1 temperature: Use of sensor 1 as cold junction temperature for sensor 2
Relevant for external cold junction compensation , specification of constant external cold junction temperature
Value range: -50 to 100 °C
Input / output assignment selects the inputs that are mapped to the current output
• Sensor 1
• Electr. meas. S1
• Temp. electronics
• Difference (S2-S1)
• Mean value
• Sensor 2
• Electr. meas. S2
• Redundancy
• Difference (S1-S2)
Selects the physical unit for the sensor measuring signal
Units: °C, °F, °R, K, mV, Ω, V, kΩ
Defines the value for 4 mA (adjustable)
Defines the value for 20 mA (adjustable)
Configurable τ 63% output signal damping value
Value range: 0 to 100 s
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