Det-Tronics X3301 Multispectrum IR Flame Detector SAFETY MANUAL User Manual
Page 7
5.1
95-8582
7
CERTIFICATION AND FAILURE RATE DATA
All Safety‑Certified X3301 models are certified
compliant to:
IEC61508: 2010
Type B Device
Systematic Capability: SIL 2 certified
HFT: 0
Low Demand Mode
PFDavg should be calculated for any safety
instrumented function using the X3301/X3302.
(Refer to FMEDA report for necessary information,
including DU rate).
Safety Accuracy: Not applicable.
Safety Response Time: See appendix A of the
corresponding instruction
manual for response time
details.
Product Life: 13‑22 years, based on manufacturer data.
All failure rate data for SIL verification is in the FMEDA
report, which is available upon request.
Product Certifications
FM
APPROVED
®
FM
APPROVED
®
FM, CSA, ATEX, CE, exida, and others.
Refer to the X3301/X3302 Instruction Manual for details.
FMEDA Report available.
For complete information regarding performance,
installation, operation, maintenance, and specifications,
refer to the appropriate instruction manual:
X3301 95‑8527
X3302 95‑8576
Failure Category
l
sd
l
su
2
l
dd
l
du
SFF
3
X3301/X3302
IR Flame Detector,
Analog Output
0 FIT
359 FIT
2448 FIT
116 FIT
96.0%
X3301/X3302
IR Flame Detector,
Relay Output
1777 FIT
360 FIT
634 FIT
124 FIT
95.7%
X3301/X3302 IR Flame Detector,
Analog Output with HART
0 FIT
363 FIT
2615 FIT
133 FIT
95.7%
IEC 61508 Failure Rates in FIT
1
1
FIT = 1 Failure / 10
9
Hours
2
It is important to realize that the No Effect failures are no longer included in the Safe Undetected failure category according to
IEC 61508, ed2, 2010.
3
Safe Failure Fraction needs to be calculated on (sub)system level.