Functional safety
7.1 General safety information
SITRANS TR200/TR300
36
Operating Instructions, 06/2010, A5E01071992-03
According to IEC 61511-1, Section 11.4.4, the hardware fault tolerance (HFT) can be
reduced by one (values in brackets) for sensors and final controlling elements with complex
components if the following conditions are applicable for the device:
● The device is proven-in-use.
● The user can configure only the process-related parameters, e.g. control range, signal
direction in case of a fault, limiting values, etc.
● The configuration level of the firmware is blocked against unauthorized operation.
● The function requires SIL of less than 4.
The device fulfills these conditions.
Содержание sitrans tr300
Страница 7: ...Table of contents SITRANS TR200 TR300 6 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 13: ...General safety notes 2 5 Measures SITRANS TR200 TR300 12 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 21: ...Installation SITRANS TR200 TR300 20 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 43: ...Commissioning 8 2 LED operating indicator SITRANS TR200 TR300 42 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 69: ...Service and maintenance SITRANS TR200 TR300 68 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 81: ...Dimension drawings SITRANS TR200 TR300 80 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 83: ...Spare parts and accessories SITRANS TR200 TR300 82 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 87: ...List of abbreviations B 1 Abbreviations SITRANS TR200 TR300 86 Operating Instructions 06 2010 A5E01071992 03 ...
Страница 93: ...Glossary SITRANS TR200 TR300 92 Operating Instructions 06 2010 A5E01071992 03 ...