Rosemount 5900S with Still-Pipe Array Antenna
The Rosemount 5900S with array antenna is a premium non-contact radar level gauge for
still-pipe measurement. It is available in two versions, fixed and hinged hatch. Typical
applications are crude oil tanks with floating roofs and gasoline/product tanks with or
without inner floating roofs.
■ Suitable for crude oil, gasoline or similar products. For Methanol please consult factory.
■ Custody transfer accuracy according to OIML R85:2008
■ Certified SIL 2 and SIL 3 capable according to IEC 61508
■ 2-in-1 functionality available for redundant level measurement
■ Tolerant against rust and product deposits inside the pipe, using Low Loss mode
■ Communicates via a 2-wire, low voltage Tankbus for easy and safe installation
■ Hinged hatch version enables easier product sampling and hand-dips
■ Installation normally with tank in service
Operating temperature in tank
-40 to 120 °C (-40 to 248 °F)
0.8 to 30 m (2.6 to 100 ft) below flange.
Possibility to measure 0.5 to 40 m (1.6 to130 ft). Accuracy may be reduced. For longer measuring range, consult your local
Fixed version: -0.2 to 2 bar (-2.9 to 29 psig) at 20 °C (68 °F).
Hinged hatch version: -0.2 to 0.5 bar (-2.9 to 7.2 psig) for 5 to 8-in. pipes.
-0.2 to 0.25 bar (-2.9 to 3.6 psig) for 10 and 12-in. pipes.
Material exposed to tank atmosphere
Antenna: Polyphenylenesulphide (PPS)
Flange: Material corresponds to AISI 316/316L and EN 1.4401 /1.4404
5-, 6-, 8-, 10- or 12 in.
5 in. hole pattern according to ANSI 5 in. Class 150
6 in. hole pattern according to ANSI 6 in. Class 150 / DN 150 PN 16
8 in. hole pattern according to ANSI 8 in. Class 150 / DN 200 PN 10
10 in. hole pattern according to ANSI 10 in. Class 150 / DN 250 PN 16
12 in. hole pattern according to ANSI 12 in. Class 150
Low Loss Mode
To get the accuracy, required for custody transfer bulk liquid storage applications, the antenna uses Low Loss Mode technology,
invented for Rosemount Tank Gauging products, to transmit radar waves in the still-pipe center.
This virtually eliminates signal and accuracy degradation due to rust and product deposits inside the still-pipe