VEGA VEGATROL 10 Ex 1 - Manual (Page 15)

VEGATROL 10 Ex 1 15
4 Supplement
4.2 Calculation information for sensor length
The determination of the sensor length must be generally made with the respective expert.
Example: cylindrical tank
Procedure
-
calculate the level of the max. permissible volume 85 %,
e.g. 2400 mm
- determine the distance from the flange lower edge up
to the calculated level
- determine the total length of VEGASWING
L = distance + 25 mm
(25 mm = submerging depth up to the switch point)
in this example:
L = 600 m + 25 mm = 625 mm
A VEGASWING with a total length of 625 mm must be
ordered.
Note:
An increase of the total length of VEGASWING will cause
the instrument to respond even at low levels, a reduction
causes a response at higher levels.
If the required total length cannot be exactly determined,
the calculated value must be rounded up (determination to
the safe side).
3000 mm
L
0 mm
600 mm distance from
flange lower edge to the
determined switch point
Volume 85 %
corresponds to 2400 mm