ABB Uvisor SF910i User Manual page 148

D Glossary
Table D.1: Glossary
(Continued)
Term
Flame-Off
Flame-On
Flame-Proven
Flame-relay
FOC
High-Limit
Intensity
IR
LOS
Measured-Values
MODBUS
Normalization
Normal-Mode
PCB
Program-Mode
Pull-In
Quality
RS-485
SafeFlame™
SE
8VZZ005286 B
The absence of a flame as calculated by the Flame-Logic
The presence of a flame as calculated by the Flame-Logic
Flame-Proven condition occurs when the Flame-Logic determines that all the
requirements are in Flame-Proven condition will continue to exist until the Flame-Logic
votes a Flame-Off condition
Flame-relay is an ON/OFF switch that is energized when a flame is detected, and
de-energized when a flame is not present
Fiber Optic Cable
A Measured-Value must remain at or below the High-Limit value or else the Flame-Logic
will vote a Flame-Off condition
For SafeFlame applications, the intensity is defined as the brightness of light energy. It
is one of the Measured-Values
Infra-Red, electromagnetic wave whose wavelength is from 750 to 2000nm and longer
(approximately)
Line Of Sight
Measured-Values are the energy characteristics that can be measured with the SF910i
Widely used and well-known serial communication protocol used in SF910i application
to exchange working parameters and configuration data
A method of setting the sensitivity of the quality calculation. The normalization values
can be modified to account for the boiler environment
SF910i is in Normal-Mode when it is not in Configuration-Mode or Parameter-Mode. In
this mode, the SF910i will display the flame monitoring information
Printed Circuit Board
SF910i is in Program-Mode when it is enabled to modify the program functions
Pull-In occurs when a Measured-Value goes from zero to a value that matches or
exceeds the Pull-in Limit value
Quality is a measure of how close the SF910i is voting a Flame-Off condition. Quality
value serves as an indicator of the general state of flame detection
A de-facto industrial standard that specify the signal type, level and other basic
parameters of a differential communication line on copper cable
SafeFlame™ is an ABB trademarked name for a series for Flame Scanners that operate
by measuring the flame energy with photo-diode sensors. These sensors convert light
energy into electronic signals
Sensor Electronic - SF910i sensor board
Description
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