VEGA VEGAFLEX 86 4 … 20 mA_HART - four-wire - Manual (Page 22)

22
4 Mounting
VEGAFLEX 86 • 4 … 20 mA/HART - four-wire
41845-EN-130314
Information:
The distance piece must only be incorporated up to max. 50 mm (2 in)
in the vessel isolation. Only then, a reliable temperature decoupling is
guaranteed.
1
2
Fig. 13: Mounting of the instrument on insulated vessels.
1 Temperature insulation
2 Ambient temperature on the housing
If there is a danger of the cable probe touching the vessel wall during
operation due to product movements or agitators etc., the measuring
probe should be securely fixed.
In the gravity weight there is an internal thread (M8), e.g. for an eye-
bolt (optional) - (article no. 2.1512).
Make sure that the probe cable is not completely taut. Avoid tensile
loads on the cable.
Avoid undefined vessel connections, i.e. the connection must be
either grounded reliably or isolated reliably. Any undefined change of
this requirement can lead to measurement errors.
In case of difficult installation conditions, the probe can be also
mounted laterally. For this purpose, adapt the rod with rod extensions
or bow-shaped segments.
Let the probe length determine automatically by the instrument to
compensate the resulting running time changes.
The determine probe length can deviate from the actual probe length
when using bow-shaped segments.
Make sure that the rod of the probe is at least 300 mm (11.811 in)
away from the vessel wall
Fixing
Rod extensions