VEGA VEGAFLEX 67 (-40…+150°C PFA insulated) 4 … 20 mA_HART two-wire - Manual (Page 13)

keep in mind that measurement down to the tip of the probe is not
possible. The exact value of the min. distance (lower dead band) is
stated in chapter "Technical data".
Fig. 4: Vessel with conical bottom
T o compensate the normal bias voltage loss due to the seal materials,
you have to use also disc springs in addition to the flange screws for
fastening PTFE plated flanges.
T he flange screws of VEGAFLEX 67 must always be tightened with a
torque of approx. 60 Nm (44 lbf ft) so that the PTFE washer seals
reliably.
M ake sure that the probe is not subjected to strong lateral forces.
M ount VEGAFLEX 67 at a position in the vessel where no
disturbances, e.g. from filling openings, agitators, etc., can occur.
Torque with PTFE plated
flanges
Inflowing medium
VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 13
4 M ounting
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