Operating Instructions

iTEMP TMT72 Operating menu and parameter description
Endress+Hauser 69
Factory setting 2 s
Sensor line resistance
Navigation Diagnostics → Diagnostic settings → Properties → Sensor line resistance
Prerequisite A 4-wire RTD or TC must be selected as the sensor type or connection type. →  73
Description Displays the highest measured resistance value of a sensor line.
User interface –1.0 · 10
20
to +1.0 · 10
20
Ω
Limit corrosion detection
Navigation Diagnostics → Diagnostic settings → Properties → Limit corrosion detection
Prerequisite A 4-wire RTD or TC must be selected as the sensor type or connection type. →  73
Description Use this function to enter the limit value for corrosion detection. If this value is exceeded,
the device behaves as defined in the diagnostic settings.
User entry 5 to 10 000 Ω
Factory setting 50.0 Ω for connection type 4-wire RTD
5 000 Ω for connection type TC
Thermocouple diagnostic
Navigation Diagnostics → Diagnostic settings → Properties → Thermocouple diagnostic
Description Use this function to switch off the "Sensor corrosion" and "Sensor break" diagnostic
functions during thermocouple measurement.
This may be necessary in order to connect electronic simulators (e.g. calibrators)
during a thermocouple measurement. The accuracy of the transmitter is not
influenced by either the activation or deactivation of the thermocouple diagnostics
function.
Selection • On
• Off
Diagnostic behavior