User's Manual

7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 13
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Specifications
Threaded Horn dimensions
Threaded Connection Markings
Threaded connection markings are found on the flat face/faces of the process
connection.
Serial number:a unique number allotted to each process connection, including the date of
manufacture (MMDDYY) followed by a number from 001 to 999.
Nominal Horn Size Horn O.D.
Horn
Height to sensor
reference point
a)
a)
Height from bottom of horn to sensor reference point as shown: see Threaded
Horn Antenna with extension
on page 12.
Beam Angle
b)
b)
– 3dB in the direction of the polarization axis (see Polarization reference point
on page 22 for an illustration).
Measurement
Range
40 mm (1.5") 39.8 mm (1.57”) A 135 mm (5.3") 19 degrees 10 m (32.8 ft)
50 mm (2”) 47.8 mm (1.88”) B 166 mm (6.55”) 15 degrees
20 m (65.6 ft)80 mm (3”) 74.8 mm (2.94”) C 199 mm (7.85”) 10 degrees
100 mm (4”) 94.8 mm (3.73”) D 254 mm (10”) 8 degrees