Functions
9.18 Runtime meters in temperature classes
SITRANS TH200/TH300
Operating Instructions, 06/2010, A5E00393069-03
63
9.18
Runtime meters in temperature classes
The SITRANS TH200 and the SITRANS TH300 offer various runtime meters. Runtime
meters are used to monitor the connected process sequence.
1. Runtime meter for transmitter electronics
● Monitors the number of operating hours during which the transmitter remained in
continuous operation, depending on the ambient temperature.
● The operating hours sequence of the transmitter is recorded in 9 ambient temperature
ranges.
● Starts with the first commissioning at the factory.
● Runtime meter and temperature ranges cannot be reset or set by the user.
● The runtime meter is only updated if the device is in measuring mode. The runtime meter
is not updated in simulation mode.
2. Runtime meter for process variable
● Monitors the sequence of the sensor connected to the transmitter in various process
areas.
● The operating hours sequence of the process variable is recorded in 9 ranges. It is
subdivided according to the connected sensor and its sensor limits. The user cannot set
the ranges.
● The runtime meter is automatically reset if one of the following parameters is changed in
the device:
– Sensor class
– Sensor type
– Interface
– Sensor connection
– Sensor factor
The runtime meters can be read out using the parameterization software SIPROM T for
SITRANS TH200 or SIMATIC PDM or HART communicator for SITRANS TH300. The
runtime meters are automatically stored in the non-volatile memory once every hour. All
runtime meters are available again after the next restart if the device is disconnected from its
supply voltage.
Summary of Contents for SITRANS T4200
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Page 71: ...Service and maintenance SITRANS TH200 TH300 70 Operating Instructions 06 2010 A5E00393069 03 ...
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