MSA Ultima X Series Safety Manual

NOTE: Any field failure of the Ultima X Series Gas Monitor should be
reported to MSA.
Modification
Any modifications [allowed per the Ultima X Monitor Manual
(P/N 10036101)] made to the Ultima X Monitor configuration after the
system is commissioned must be validated to ensure they were made
properly. Executing the Proof Test procedure given earlier in this
chapter may be used for this validation.
Reliability Data
A detailed Failure Mode, Effects, and Diagnostics Analysis (FMEDA)
report with all failure rates and failure modes is available from MSA.
The Ultima X Gas Monitor is certified for low demand mode applications
up to SIL2 for use in a simplex (1oo1) configuration, depending on the
PFD
avg
or PFH calculation of the entire Safety Instrumented Function.
Lifetime Limits
Expected Ultima X lifetime is approximately 10 years.
• Reliability data listed in the FMEDA report is only valid for this
period.
• Ultima X failure rates may increase after this period.
• Reliability calculations based on the data listed in the FMEDA
report for Ultima X lifetime beyond 10 years may yield results that
are too optimistic (i.e., calculated Safety Integrity Level will not be
achieved).
Environmental Limits
Ultima X environmental limits are given in TABLE 3-1 of the Ultima X
Series Gas Monitor instruction manual (P/N 10036101). If these limits
are exceeded, reliability data listed in the FMEDA report are not valid.
2-8

MSA Ultima X Series Specifications

General

Brand	MSA
Model	Ultima X Series
Category	Measuring Instruments
Language	English