ABB CPTC-02, Руководство пользователя

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Description Term
Proof test interval. Defines the probabilistic failure rate (PFH
or PFD
avg
) for the safety function or subsystem. Performing
a proof test at a maximum interval of T
1
is required to keep
the SIL capability valid. The same interval must be followed
to keep the PL capability (EN ISO 13849) valid. Note that
any T
1
values given cannot be regarded as a guarantee or
warranty.
T
1
Mission time: the period of time covering the intended use
of the safety function/device. After the mission time elapses,
the safety device must be replaced. Note that any T
M
values
given cannot be regarded as a guarantee or warranty.
(EN ISO 13849-1, IEC 61800-5-2)
T
M
The Equipment and Protective Systems Intended for Use in
Potentially Explosive Atmospheres Regulations 2016 (+
amendment SI 2019 No. 696) UKEX
Confirmation by, for example, analysis that the safety system
meets the functional safety requirements of the specific ap-
plication. Validation
Confirmation by, for example, testing that the safety system
meets the requirements set by the specification. Verification
Potentially explosive atmosphere. Hazardous areas are di-
vided into zones, based on the frequency and duration of the
occurrence of an explosive atmosphere. (IEC/EN 60079-10) Zone
Introduction to the manual 19