VEGA VEGAFLEX 66 (-110…+400°C) 4 … 20 mA_HART - Manual (Page 14)

min. distance (lower dead band) is stated in chapter "Technical
data".
Fig. 3: Vessel with conical bottom
S tandpipes 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.
M
easuring probes can be mounted in bypass tubes up to
DN 200.
T he max. temperature is 250 °C (482 °F).
I
f 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.
D epending 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.
T
he 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 • 4 … 20 mA/HART
4 M ounting
32762
-EN
-080716