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11 Appendix
11.3 List of Abbreviations
Abbreviation Explanation
SIL The safety integrity level serves for the assessment (according to IEC 61508) of the elec-
tric/electronic/programmable electronic (E/E/PE) systems in relation to the reliability of
safety functions, i.e. the reporting of a flame signal.
ESD Electrostatic discharge is a spark or disruptive charge that is created due to large differ-
ences in potential that can cause a short, high electrical voltage pulse on an electrical
device.
FPE A functional earth ground is used for trouble-free function of electrical systems and
devices.
FFTD The flame failure detection time is (according to DIN EN 298) the reaction time of an
independent flame monitor between the flame detection and the flame signal that indicates
the flame failure.
PWR Power (supply voltage)
ERR Error
FSB Flame Scanner System Bus is a communication interface developed by LAMTEC that
works with a protocol of the same name
LDR A light dependent resistor or a flame sensor input for this type of flame sensor.
UV Is a flame sensor input for the connection of UV tubes which utilise the ultraviolet wave-
length range of the flame for flame detection.
ION Is an ionisation input which utilises the rectifying properties of the flame in order to detect
it.
HP The main processor is one of two controllers within the double-edged system structure of
the flame monitor. This chiefly takes over the control of the device. Peripherals which are
connected to this are designated with HP.
UP The monitoring processor is one of two controllers within the double-edged system struc-
ture of the flame monitor. This chiefly takes over the monitoring of the main processor.
Peripherals which are connected to this are designated with UP, if necessary.
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