VEGA VEGAFLEX series 80 Centering - Manual (Page 10)

10
2 Mounting
Centering • for VEGAFLEX series 80
44967-EN-131119
2 Mounting
2.1 General instructions
Use as few spacers as possible. With rod probes, one spacer at the
probe end is usually sufficient. If several spacers are required, they
should be mounted large distances apart.
Keep in mind that buildup can form on the spacers. Strong buildup
can influence the measurement.
When probes are used in standpipes or bypass tubes, contact with
the tube wall must be avoided. We therefore recommend probes with
a centering.
Rod probes generally do not require a spacer. However, if there is a
risk of the rod probe being pressed against the tube wall by inflow-
ing medium, you should mount a spacer at the probe end to reliably
avoid contact with the tube wall. The cable of cable probes can also
be strained.
The centering should be mounted at the lower end of the probe rod.
In a bypass tube, select the position of the centering component such
that it is below the lower vessel connection tube and hence below the
min. adjustment point.
1 2 3
Fig. 7: Examples of the position of the spacer or the centering weight
1 Rod probe with spacer (plastic)
2 Cable probe with centering weight
3 Spacer (plastic) on the gravity weight of a cable probe
Spacers
Buildup
Standpipes or bypass
tubes