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Functional safety
7.2 Device-specific safety instructions
7.2.3
Settings
Current sensor function / Simulation
The use of the current sensor function and the simulation in safety applications can result in
undesirable operating states.
The use of both functions is not permitted in safety applications.
Operation/configuration
While operating/configuring, ensure that the technical data of the temperature transmitter are
adhered to in their respective version.
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
Note
Configuration changes in SITRANS TH300 not protected by passwords
If there is no password protection, you may have to deal with undesirable changes in the
configuration of the device.
We recommend that you enable password protection for your device after checking the
safety function.
40
CAUTION
function. You check the measuring accuracy, for example, with a sensor calibration.
SITRANS TH200/TH300
Operating Instructions, 06/2010, A5E00393069-03
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