Safety Characteristics - Siemens SITRANS TR200 Produktinformation

Behavior in case of faults
Repairs
Defective devices should be sent in to the repair department with details of the fault and the cause. When ordering
replacement devices, please specify the serial number of the original device. The serial number can be found on the rating
plate.
The address of the responsible SIEMENS repair center, contacts, spare parts lists, etc. can be found on the Internet.
Maintenance/Checking
Interval
We recommend that the functioning of the temperature transmitter is checked at regular intervals of one year.
Checking the safety function
We recommend that:
● You check the status for warnings and alarms.
● Check the upper and lower alarm current value.
● Perform a 2-point calibration.
● You check the measuring accuracy that must be in the range of ± 2% for the safety function. You check the measuring
accuracy, for example, with a sensor calibration.
Checking safety
You should regularly check the safety function of the entire safety circuit in line with IEC 61508/61511. The testing intervals
are determined during the calculation for each individual safety circuit in a system (PFD

Safety characteristics

The safety characteristics necessary for using the system are listed in the "SIL declaration of conformity". These values
apply under the following conditions:
● The SITRANS TR200 / TH300 temperature transmitters are only used in applications with a low demand rate for the
safety function (low demand mode).
● The communication is used for the following purposes only:
– Device configuration
– Reading diagnostic values
● The devices are operated differently:
– SITRANS TR200: Operation via SIPROM T
– SITRANS TR300: Operation via SIMATIC PDM or handheld communicator
● The safety function test has been concluded successfully.
● The transmitter is blocked against unwanted and unauthorized changes/operation.
● The following condition applies to the transmitter:
– The current signal is evaluated by a safe system.
● The specified error rates apply to the typical demand of an industrial environment as in IEC 60654-1 class C. IEC 60654-
1 class C means a protected place of application, with an average temperature of max. 40 °C for an extended period of
time.
● The calculation of error rates is based on a MTTR of 72 hours.
The maximum application time of the SITRANS TR200 or TR300 in a safety application is 20 years. Replace the device after
this time.
Functional safety for SITRANS TR200/TR300
A5E03263689-02, 08/2010
).
AVG
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