VEGA VEGAFLEX 66 (-110…+400°C) Profibus PA - Manual (Page 14)

min. distance (lower dead band) is stated in chapter "T echnical
data".
Fig. 3: Vessel with conical bottom
Standpipes or bypass tubes are normally metal tubes with a
diameter of 30 … 200 mm (1.18 … 7.87 in). In measurement
technology such a tube corresponds to a coax probe. It does
not matter if the standpipe is perforated or slotted for better
mixing. Lateral inlets with bypass tubes also do not influence
the measurement.
Measuring probes can be mounted in bypass tubes up to
DN
200.
The max. temperature is 250 °C (482 °F).
If VEGAFLEX 66 is used in standpipes or bypass tubes,
contact with the tube wall should be avoided. We offer spacers
as accessories for fastening the probe in the middle of the
tube.
Depending on the tube diameter or tube length, one or several
spacers can be mounted. With cable probes, the cable can
also be strained to avoid contact with the tube.
The max. temperature for the spacers is 250 °C (482 °F).
A special high temperature version of VEGAFLEX 66 with
integrated bypass tube can be used in applications with
temperatures up to 400 °C (752 °F).
Standpipes or bypass
tubes
14 VEGAFLEX 66 • Profibus PA
4 Mounting
32764
-EN
-080716