Detcon DM-700 SIL 2 Safety Manual - Manual (Page 6)

16 PRODUCT REPAIR
The DM-700 is partially field-repairable. Follow the DM-700 instruction manual for proper guidance in executing the
allowable field repair/replacement actions. No firmware changes are permitted or authorized. All failures detected by the
transmitter diagnostics or by the Proof Test must be reported.
17 OPERATING, ENVIRONMENTAL, AND PERFORMANCE SPECIFICATIONS
The Safety-Certified DM-700 product versions fully comply with, and must be operated in accordance with the
functional, environmental, and performance specifications provided in the DM-700 instruction manual. A 24 hour mean
time to repair should be assumed for safety availability calculations. All DM-700 diagnostics have a maximum 1 hour test
interval.
18 SPARE PARTS
Refer to “Spare Parts” in the DM-700 instruction manual. Safety Certification is based on having a sufficient number of
spares to achieve a 24 hour mean time to repair.
19 CERTIFICATION AND FAILURE RATE DATA
All Safety-Certified DM-700 models are certified compliant to:
IEC61508:2010
SIL 2 Certified
PFDavg @ 1 year is 1.5% of the SIL2 range.
Safe Failure Fraction (SFF): 91.1%
Safety Accuracy: +/-20% FS Range
Safety Response Time: T80 < 60 seconds
Product Life:
10 years (Intelligent Transmitter Module)
3 years+ (Electrochemical Cell, depending on gas type)
20 CERTIFICATIONS
cCSAus, ATEX, CE Marking (Refer to the Model DM-700 Instruction Manual for details).
FMEDA Report available.
For complete information regarding performance, installation, operation, maintenance and specifications of Model DM-
700, refer to the instruction manual Document #3207.
21 REVISION LOG
Revision Date Changes made Approval
1.0 7/26/13 Initial Release RJM
2.0 8/2/13 Changed startup time to 1 hour in Section 8. Changed proof test
accuracy to ±20% in Section 13. RJM
3.0 8/8/13 Add product life for electrochemical cell RJM