VEGA VEGAFLEX 81 Modbus and Levelmaster protocol User Manual
Page 74
74
11 Supplement
VEGAFLEX 81 • Modbus and Levelmaster protocol
41828-EN-130314
Ʋ Vessel
metallic, ø 1 m (3.281 ft), centric installation, process
fitting flush with the vessel ceiling
Ʋ Medium
Water/Oil (dielectric constant ~2.0)
1)
Ʋ Installation
Probe end does not touch the vessel bottom
Sensor parameter adjustment
Gating out of false signals carried out
Typical deviation - Interface measure-
ment
± 5 mm (0.197 in)
Typical deviation - Total level interface
measurement
See following diagrams
Typical deviation - Level measurement
2)3)
See following diagrams
L
0
-2 mm
(-0.079")
2 mm
(0.079")
15 mm
(0.591")
-10 mm
(-0.394")
0,3 m
(11.811")
0,08 m
(3.15")
0,02 m
(0.787")
1
Fig. 38: Deviation VEGAFLEX 81 in rod version in water
1 Dead band - no measurement possible in this area
L Probe length
1)
with interface measurement = 2.0
2)
Depending on the installation conditions, there can be deviations which can be rectified with an adaptation of
the adjustment or a change of the measured value offset in the DTM service mode
3)
The dead bands can be optimizes by a false signal suppression.