Download High Precision Tank Gauging System

Technical Description
703010En, Ed. 3, Rev G
June 2007
TankRadar Rex
Ex
Reference
Pin
Still-pipe
ø 100 mm
The reference pin mounted inside the 4-inch still-pipe and
a bottom reflection ring enable the measurement to be
checked during operation.
Technical Data for RTG 3960
See also technical data for the Transmitter Head.
Instrument accuracy:
RTG 3960
± 0.5 mm ± (5/256 in.)
RTG 3960 L ± 3 mm ± (1/8 in.)
Operating temperature at ball valve:
-55 °C to 90 °C (-67 °F to 194 °F)
Operating temperature in tank:
-170 °C to 90 °C (-274 °F to 194 °F)
Measuring range:
0.5 m to 60 m (1.6 ft to 200 ft) from cone end. For longer measuring range, please consult
your Rosemount Tank Gauging representative.
Maximum pressure:
Up to 25 bar (365 psig). (Note! Flanges may have higher pressure rating than 25 bar,
but maximum tank pressure is still 25 bar).
Pressure rating:
10 bar/150 psi
20 bar/300 psi
40 bar/600 psi
Pressure sensor (option):
Druck PTX 621
Flange:
6-in.
Still-pipe dimension alternatives:
4-in. sch. 10 or sch 40
100 mm (99 mm inner diameter).
Total weight:
38 kg (84 lbs) for 6-in. 150 psi
48 kg (106 lbs) for 6-in. 300 psi
Material exposed to tank atmosphere:
Antenna: Acid proof steel type EN 1.4436 (AISI 316)
Sealing: Quartz
Ball valve sealing kit (option):
20 bar or 60 bar (290 psi or 870 psi), the higher pressure for 600 psi flange only
Field data display:
In separate DAU (page 26) or RDU (page 27)
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