VEGA VEGAFLEX 83 Modbus and Levelmaster protocol Polished version User Manual
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11 Supplement
VEGAFLEX 83 • Modbus and Levelmaster protocol
41843-EN-130314
Ʋ Temperature
+18 … +30 °C (+64 … +86 °F)
Ʋ Relative humidity
45 … 75 %
Ʋ Air pressure
+860 … +1060 mbar/+86 … +106 kPa
(+12.5 … +15.4 psig)
Installation reference conditions
Ʋ Min. distance to installations
> 500 mm (19.69 in)
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)
2)
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
3)4)
See following diagrams
L
0
-2 mm
(-0.079")
2 mm
(0.079")
15 mm
(0.591")
-15 mm
(-0.591")
0,2 m
(7.874")
0,08 m
(3.15")
0,04 m
(1.575")
1
Fig. 37: Deviation VEGAFLEX 83 in rod version in water
1 Dead band - no measurement possible in this area
L Probe length
2)
with interface measurement = 2.0
3)
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
4)
The dead bands can be optimizes by a false signal suppression.