Glossary
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC
107
multiple echoes
secondary echoes that appear as double, triple, or quadruple echoes in the distance from
the target echo.
Near Blanking
see Blanking.
nozzle
a length of pipe mounted onto a vessel that supports the flange.
parameters
in programming, variables that are given constant values for specific purposes or processes.
propagation factor (pf)
where the maximum velocity is 1.0, pf is a value that represents a reduction in propagation
velocity as a result of the wave travelling through a pipe or medium.
pulse
a wave that departs from an initial level for a limited duration of time, and returns to the initial
level
pulse radar
a radar type that directly measures distance using short microwave pulses. Distance is
determined by the return transit time.
radar
radar is an acronym for RAdio Detection And Ranging. A device that radiates
electromagnetic waves and utilizes the reflection of such waves from distant objects to
determine their existence or position.
range
distance between a transmitter and a target.
range extension
the distance below the zero percent or empty point in a vessel.