Acronyms - ProFire PF2200-SB Product Manual

1.3

ACRONYMS

BMS
ESD
FIT
FMEDA
HFT
HFV
I/O
PFD
AVG
PF2200-SB
PFN
PTC
PWM
RTD
SIL
SIF
SFF
SSV
TCV
Burner Management System
Emergency Shut Down – a mechanism that shuts down the system in the
event of a safety emergency
Failure In Time (unit) – represents the number of failures occurring in 10
hours
Failure Mode, Effects and Diagnostic Analysis
Hardware Fault Tolerance
High Fire Valve
Generic name for a terminal that can be an input, output, or a combination
or both.
Average Probability of Failure on Demand
Model number for the PF2200 Single Burner BMS product. Consists of:
BMS Card, User Interface Card, keypad, enclosure and ignition switch
Profire Network. Method of communication between User Interface Card
and BMS Card.
Proof Test Coverage
Pulse Width Modulation
Resistive Thermal Device
Safety Integrity Level. A discrete level (one out of a possible four) for
specifying the safety integrity requirements of the safety functions to be
allocated to the E/E/PE safety-related systems where Safety Integrity Level 4
has the highest level of safety integrity and Safety Integrity Level 1 has the
lowest
Safety Instrumented Function. A set of equipment intended to reduce
the risk due to a specific hazard (a safety loop)
Safe Failure Fraction. The fraction of the overall failure rate of a device that
results in either a safe fault or a diagnosed unsafe fault
Safety shutoff valve. A valve that shuts off for safety reasons.
Temperature Control Valve
Section 1: INTRODUCTION
Page 7 of 85
V 4.0
9