VEGA VEGAFLEX 67 (-20…+250°C) 4 … 20 mA_HART two-wire - Manual (Page 14)

more than 1 m (3.281 in) length, you must secure the probe by
fastening a suitable insulated brace or guy directly above the end of
the rod.
I f there is a danger of the probe touching the vessel wall during
operation due to product movements or agitators etc., the measuring
probe should be securely fixed.
I n the gravity weight there is a thread (M12), e.g. for a ring bolt
( optional) - (article no. 2.27424).
M ake sure that the probe cable is not completely taut. Avoid tensile
loads on the cable.
A void undefined cable-vessel connections, i.e. the connection must be
either grounded reliably or isolated reliably. Any deviation from this
requirement can lead to measurement errors.
VEGAFLEX 67 should be integrated in the vessel insulation. This
prevents the electronics from strong heating or cooling by temperature
radiation.
M
ake sure that with heated or cooled vessels the permissible ambient
temperature on the housing is not exceeded. The permissible ambient
temperature is stated in chapter "Technical data" under "Ambient
conditions".
1
2
Fig. 6: Vessel with temperature insulation
1 Temperature insulation
2 Ambient temperature on the housing
Fixing
Temperature insulation
14 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire
4 M ounting
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