VEGA VEGAPULS 45 4 … 20 mA; HART compact sensor - Manual (Page 8)

8 VEGAPULS 42, 44 and 45 – 4 … 20 mA
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 threaded 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 focussing 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 increased accuracy is
required or if liquids with very low dielectric
values must be detected, such as e.g. liquid
gas.
2
2
4 ... 20 mA
HART ® handheld on the 4 … 20 mA signal cable
To make adjustments, simply connect the
HART
® handheld to the 4 … 20 mA output
signal cable or insert the two communication
cables of the HART
® handheld into the ad-
justment jacks on the sensor.
Product description, types and versions
HART ® handheld
HART Communicator
Adjustment with the HART ® handheld
Series 40 sensors with 4 … 20 mA output
signal can also be adjusted with the HART
®
handheld. A special DDD (Data Device De-
scription) is not necessary - the sensors can
be adjusted with the HART
® standard menus
of the handheld.