Det-Tronics EQP Fire and Gas Detection/Releasing System SAFETY MANUAL - Manual (Page 19)

5.1 95-8599 17
Certified for use up to SIL 2 Configuration 1oo1D
Architecture Type B Hardware Fault Tolerance 0
Safe Failure Fraction > 90%
Failure Rate Data
Part Model l
DU
(dangerous undetected failure rate per 10 9 hours) Sff %
EQP Safety Controller EQ3xxx 87.5 96.7
EDIO Safety Module -
Configured as Input*
EQ3730EDIO
Common = 20.9
Input Monitored for Opens = 6.6
Input Monitored for Opens & Shorts = 0.68
97.1
93.0
99.0
EDIO Safety Module -
Configured as Output*
EQ3730EDIO
Common = 20.9
Output Monitored for Opens, Opens & Shorts = 0.92
97.1
98.9
AIM Safety Module EQ3710AIM
Common = 12
Per Input Channel = 5.16
98.1
93.0
X3301 IR Flame Detector X3301 133 96.3
Eclipse IR Gas Detector Model PIRECL 132 95.5
EQP Safety Communications 22.8 n/A
* “Common” are components common to both inputs and outputs. For lDU calculation:
Example 1: Input and output on same EDIO
l DU = Common + Input + Output
l DU = 20.9 + 0.68 + 0.92 = 22.5
Example 2: Input and output on different EDIOs
l DU = l DU EDIO #1 + l DU EDIO #2
= (Common + Input) + (Common + Output)
= (20.9 + 0.68) + (20.9 + 0.92) = 43.4
Product Life EQ3xxx (Controller): 10-25 years, based on manufacturer data.
Product Life EQ3730EDIO: 6-29 years, based on manufacturer data.
Product Life EQ3710AIM: 6-29 years, based on manufacturer data.
Product Life X3301: 12-27 years, based on manufacturer data.
Product Life PIRECL: 5-40 years, based on manufacturer data.
All failure rate data for SIL verification is in the FMEDA report, which is available upon request.
IEC 61508 failure Rates