Emerson Process Management 5300 manual Figure C-14. Single Rigid Hthp with VC marking on the probe

Reference Manual

00809-0100-4530, Rev BA July 2009

Rosemount 5300 Series

NOTE!

Single Rigid HTHP equipped with reference reflector is the only probe that supports vapor compensation. The probe is marked “VC” as shown in Figure C-14.

Figure C-14. Single Rigid HTHP with VC marking on the probe.

V C

V C

VC marking on tank seal

•Probes up to 13.1 ft (4 m) length are supported

•Pipe / Chamber is the only supported mounting type. Supported pipe inner diameters are 2, 3, and 4 in. (5, 7.5, and 10 cm)

•Probe End Projection is disabled when vapor compensation is enabled

•Trim near zone shall not be used when dynamic vapor compensation is used.

Dynamic Vapor Compensation requires a minimum distance from the flange to the surface level to measure the change in the vapor dielectric constant. If the level rises within this area, the unit switches over to static compensation, using the last known vapor dielectric constant. This minimum distance is

17.3in. (440 mm) for probe length < 6.6 ft (2 m), and 28 in. (710 mm) for probe length > 6.6 ft (2 m) (see X in figure below), to dynamically compensate up to level 100%. The minimum measuring range for this functionality is 12 in. (300 mm).

C-17