KROHNE OPTITEMP TT 60 C-R EN - Manual (Page 21)

11/2010 – 4000754401 – MA OPTITEMP TT60CR R01 en www.krohne.com 21
5.2.1 Smart Sense
If the appropriate measuring sensors are provided (an additional wire in the sensor), the
transmitter can continuously monitor the insulation resistance of the sensor, including the
connection wires. This function (Smart Sense) is possible for resistance thermometers and
thermocouples. If the insulation resistance is too low, the measured result will be incorrect and
a message will be generated via ProfiBus.
This function requires configuration with the "ProfiSoft" software via a PC or via the ProfiBus.
5.2.2 Monitoring of sensor aging
If a resistance thermometer or a thermocouple with two sensors is used, the TT 60 can be used
to monitor the aging of the sensor. The transmitter compares the measured values of the two
sensors. Aging is indicated if the differential between the measured values is too great. In this
case a message is generated via the ProfiBus. For further information, see the "Profisoft"
manual.
Action Action Action Action
To protect the PC connections, they must be closed off using the supplied protection caps
after configuration has been completed.