VEGA VEGAFLEX 67 (-40…+150°C PFA insulated) Foundation Fieldbus User Manual

Page 43

Fig. 19: Interface measurement (interface is between L1 and L2)

Reference plane

d1 Distance to the interface (Secondary Value 2)
d2 Distance to the level (Total Sensor Value)
TS

Thickness of the upper medium (d1 - d2)

h1 Height - interface (Secondary Value 1)
h2 Height - Level
L1

Lower medium

Upper medium

Resolution, digital

> 1

mm (0.039 in)

Accuracy (according to DIN EN 60770-1)

Process reference conditions according to DIN EN 61298-1

Temperature

+18

… +30 °C (+64 … +86 °F)

Relative humidity

45 … 75 %

Air pressure

+860

… +1060 mbar/+86 … +106 kPa

(+12.5 … +15.4 psig)

Emulsion phase

< 2

mm (< 0.079 in)

Installation reference conditions

Min. distance to installations

> 500

mm (19.69 in)

Vessel

metallic, ø 1 m (3.281 ft), centric installation,
process ﬁtting ﬂush with the vessel ceiling

Medium

Water/Oil (dielectric ﬁgure ~2.0)

Installation

Probe end does not touch the vessel bottom

Sensor parameter adjustment

Gating out of false signals carried out
In bulk solids applications, implementing a false
signal suppression is generally not recommended.
The accuracy of bulk solid applications depends

VEGAFLEX

67 • Foundation Fieldbus

10 Supplement

32306

-120329