JUMO 701150 14597 safetyM STB/STW - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 36)

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The possibility to connect passive sensors such as double thermocouples, Pt100 sensors, or Pt1000 sensors means that the
sensors do not necessarily require a SIL qualification. In this case, the specification of the failure rates for the passive sensors
is sufficient for the SIL qualification of the overall system. The user of the system must always determine the PFD avg and/or
PFH value of the overall safety chain to evaluate the achieved SIL
Requirements regarding proof-check interval and lifetime apply only in terms of functional safety.
Requirements as specified by DIN EN 14 597 are defined in the Operating Manual B 701150 and are independent of the re-
quirements of this Safety Manual.
Temperature probe
Admissible measuring ranges must be observed for devices with approval according to DIN EN 14 597 and SIL certification. If
other temperature probes than those described by JUMO data sheets 901006 and 902006 are used, their registration and suit-
ability for use must be verified.