Reference Manual
00809-0100-4021, Rev FB
August 2011
Rosemount 3144P
6-4
Certified SIS
Proof test intervals are based on sensor failure rates from the Safety
Equipment Reliability Handbook, exida.com, 2003. A low stress environment
is assumed, with 30% of SIL 2 PFDavg limit budgeted for the transmitter and
sensor element. See the FMEDA report for additional details or references.
Inspection The 3144P is repairable by major component replacement.
Visual Inspection
Not required
Special Tools
Not required
Product Repair
All failures detected by the transmitter diagnostics or by the proof-test
must be reported. Feedback can be submitted electronically at
http://www.emersonprocess.com/rosemount/safety/safetyCertTemp.htm
(Contact Us button).
SPECIFICATIONS The 3144P must be operated according to the functional and performance
specifications provided in the 3144P Product Data Sheet (Document No.
00813-0100-4021) or in Appendix A: Reference Data.
Failure Rate Data The FMEDA report includes failure rates, common cause Beta factor
estimates, and independent information on generic sensor models.
The report is available at
http://www.emersonprocess.com/rosemount/safety/safetyCertTemp.htm
Product Life 50 years – based on worst case component wear-out mechanisms –
not based on wear-out of process sensors.
Report any safety related product information at
http://www.emersonprocess.com/rosemount/safety/safetyCertTemp.htm
SPARE PARTS This spare part is available for the 3144P Temperature transmitter.
Table 6-1. Proof test interval guideline
Sensors SFF Abbreviated Proof Test Extended Proof Test Notes
4-wire RTD 97.7% 10 years 10 years
T/C 94.7%
1 year 10 years
2 years 2 years
Dual T/C 99.6% 10 years 10 years Using U3 Drift Alert & HotBackup
Dual 3-wire RTD 98.9% 10 years 10 years Using U3 Drift Alert & HotBackup
T/C & 3-wire RTD 99.3% 10 years 10 years Using U3 Drift Alert & HotBackup
Description Part Number
Safety Certified electronics module assembly 03144-1610-0001
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