Siemens SITRANS LR260 Operating Instructions Manual page 182

Glossary
TVT (time varying threshold)
a time-varying curve that determines the threshold level above which echoes are determined
to be valid.
two wire radar
a low-energy radar. Can be loop powered, analog, intrinsically safe 4 to 20 mA, or a digital
(BUS) transmitter.
waveguide antenna
a hollow, metallic tube that transmits a microwave signal to the product target.
182
SITRANS LR260 with mA/HART
Operating Instructions, 11/2019, A5E32337683-AD