Endress+Hauser iTEMP TMT162 Operating Instructions Manual page 72

Operating menu and parameter description
Options
Factory setting
Lower range value
Navigation
Description
User entry
Factory setting
Upper range value
Navigation
Description
User entry
Factory setting
72
• Sensor 1 (measured value)
• Sensor 2 (measured value)
• Device temperature
• Average of the two measured values: 0.5 x (SV1+SV2)
• Difference between sensor 1 and sensor 2: SV1-SV2
• Sensor 1 (backup sensor 2): If sensor 1 fails, the value of sensor 2 automatically becomes
the primary HART ® value (PV): sensor 1 (OR sensor 2)
• Sensor switching: If the value exceeds the configured threshold value T for sensor 1, the
measured value of sensor 2 becomes the primary HART
switches back to sensor 1 if the measured value of sensor 1 is at least 2 K below T:
sensor 1 (sensor 2, if sensor 1 > T)
• Average: 0.5 x (SV1+SV2) with backup (measured value of sensor 1 or sensor 2 in the
event of a sensor error in the other sensor)
The threshold value can be configured using the Sensor switch set point
→  76parameter . With temperature-dependent switching, it is possible to
combine 2 sensors that offer advantages in different temperature ranges.
Sensor 1
Setup → Lower range value
Expert → Output → Lower range value
Use this function to assign a measured value to the current value 4 mA.
The limit value that can be set depends on the sensor type used in the Sensor type
→  69 parameter and the measured variable assigned in the Assign current
output (PV) parameter.
Depends on the sensor type and the setting for "Assign current output (PV)".
0
Setup → Upper range value
Expert → Output → Upper range value
Use this function to assign a measured value to the current value 20 mA.
The limit value that can be set depends on the sensor type used in the Sensor type
→  69 parameter and the measured variable assigned in the Assign current
output (PV) parameter.
Depends on the sensor type and the setting for "Assign current output (PV)".
100
iTEMP TMT162
® value (PV). The system
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