VEGA VEGAPULS 45 Profibus PA - Manual (Page 11)

VEGAPULS 42, 44 and 45 – Profibus PA 11
24908-EN-041227
Types and versions
2 Types and versions
2.1 Survey
Series 40 sensors are manufactured in three
basic versions as VEGAPULS 42, 44 and 45
VEGAPULS 42 sensors are distinguished by
a G 1½ A or 1½“ NPT mounting boss as
process connection. These sensors are
equipped in standard versions with a
ø 40 mm horn antenna.
VEGAPULS 44 sensors typically have DIN or
ANSI flanges as process connection. In
standard version they are manufactured with
DN 50, 80, 100 and 150, as well as with ANSI
2“, 3“, 4“ and 6“. The bigger flanges are
equipped with respectively bigger antenna
horns (ø 48, 75 and 95 mm).
Generally speaking: The bigger the antenna
horn, the better the focusing characteristics
and the better the antenna gain. This ensures
that even a weak level echo will be reliably
detected as level echo.
VEGAPULS 45 sensors are distinguished by
a measuring tube up to 4 m length. These
sensors are used if special accuracy is re-
quired or if liquids with very low dielectric
figures must be detected, such as e.g. liquid
gas.
VEGAPULS 42
VEGAPULS 44
VEGAPULS 45
with thread
G 1½A or 1½“
NPT
VEGAPULS 45
with flange