• Highest accuracy for inventory and custody transfer on tanks with liquiefied gas
• Antenna installed in 100 mm (4 in.) still-pipe, ensuring a strong echo even under surface boiling and turbulent conditions
• TÜV-tested and approved for overfill protection according to WHG regulations
• Suitable for SIL 2 applications in accordance with IEC 61508/61511

General Technical Data

Field bus (options):

• Profibus DP.
• Tiway (only one relay available, analog output not available).
•  Foundation™ fieldbus (non-IS: only one relay available, analog output not available. IS: only one analog input available).

Other vendors’ communication protocols:

• Enraf (requires special Field Bus Modem, EBM).
• Varec (only one relay available, analog output not available).
• L&J (only one relay available, analog output not available)
• Whessoe (only one relay available, analog output not available)
• GPE (only one relay available, analog output not available)
• Sakura (only one relay available, analog output not available)
• Tokyo Keiso (only one relay available, analog output not available)

Temperature inputs:
Up to 6 temperature inputs (PT 100) with common return or 3 with individual wiring directly into the gauge.
Up to 14 temperature inputs to each gauge via separate Data Acqusition Unit (DAU).
Temperature conversion accuracy:
± 0.1 °C for -50 to +250 °C (-58 to +482 °F).
Note! Temperature range for PTB approval is -20 to +90 °C (-4 to +194 °F).
Total weight for transmitter head without flange:
12 kg (26 lbs).
Field data display:
In separate DAU or RDU.
Antennas:
All antennas are of drip-off type in accordance with API (Ch. 3.1 B, Ed 1). For antenna specific data, see below.

Technical Data for RTG 3960

See also TankRadar Rex Technical Description. 
Instrument accuracy:
RTG 3960: ± 0.5 mm (0.020 in.)
RTG 3960 L: ± 3 mm (0.12 in.)
Operating temperature at ball valve:
-55 to 90 °C (-67 to 194 °F).
Operating temperature in tank:
-170 to 90 °C (-274 to 194 °F).
Measuring range:
0.5 to 60 m (1.6 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 25 bar.
Pressure rating:
PN 10 bar/150 psi.
PN 20 bar/300 psi.
PN 40 bar/600 psi.
Pressure sensor:
Druck PTX 621.
Flange:
6-in.
Still-pipe dimension:
4-in. (Sch. 10 or Sch 40).
100 mm (99 mm inner diameter).
Total weight:
6-in. 150 psi flange:appr. 38 kg (84 lbs).
6-in. 300 psi flange: appr. 48 kg (106 lbs).
6-in. 600 psi flange: appr. 68 kg (150 lbs).
Material exposed to tank atmosphere:
Antenna: Acid proof steel (type 316) and quartz.
Sealing: Quartz.
Ball valve sealing kit (option):
20 or 60 bar (290 or 870 psi), the higher pressure for 600 psi flange only.