Functional Specification Of The Non-Safety Functions; Safety Parameters - PR Elecronics 9116 Handbuch

safety Manual
For RtD and linear resistance input sensors, cable resistances of up to 50 W per wire can be
compensated if 3- or 4-wire connection is configured.
For thermocouple sensors, cold junction temperature errors can be compensated, either by an
internally mounted temperature sensor, or by an accessory connector with a built-in temperature
sensor. the selection of cJc measurement must be done and verified by the end user.
6

functional specification of the non-safety functions

the status relay (terminal 33 and 34), error signal on power rail (terminal 91) and leD outputs
are not suitable for use in any safety instrumented Function.
7

Safety parameters

RtD, tc, linR and Potentiometer input, current output
Probability of dangerous Failure per Hour (PFH)
Probability of failure on demand (PFD) -
1 year proof test interval
Proof test interval (10% of loop PFD)
safe Failure Fraction
RtD, tc, linR and Potentiometer input, Relay output
Probability of dangerous Failure per Hour (PFH)
Probability of failure on demand (PFD) -
1 year proof test interval
Proof test interval (10% of loop PFD)
safe Failure Fraction
Voltage input, current output
Probability of dangerous Failure per Hour (PFH)
Probability of failure on demand (PFD) -
1 year proof test interval
Proof test interval (10% of loop PFD)
safe Failure Fraction
Voltage input, Relay output
Probability of dangerous Failure per Hour (PFH)
Probability of failure on demand (PFD) -
1 year proof test interval
Proof test interval (10% of loop PFD)
safe Failure Fraction
6
9116 UNiVeRsal coNVeRteR
Version No. V1R0
4.30e-08
1
Note
2.82e-04
4 years
93%
6.20e-08
1
Note
4.03e-04
3 years
90%
5.60e-08
1
Note
3.66e-04
3 years
93%
7.60e-08
1
Note
4.89e-04
2 years
91%