VEGA VEGAFLEX 81 Ship-building - Manual (Page 18)

18
4 Mounting in a standpipe
VEGAFLEX 81 • Cargo tank (crude oil)
39154-EN-130626
Mounting with gravity weight
ø 2 mm
(0.08")
ø 4 mm
(0.16")
ø 150 - 200 mm
(5.91 - 7.87")
z
y
y
z
≥ 10 mm (0.39")
3
A
B
1
2
7
4
5
6
min level
min level
Fig. 28: Mounting versions
1 Ventilation openings
2 Standpipe - vertically mounted - max. deviation 10 mm (0.4 in)
3 Gravity weight
4 Washer for centering and straining the sensor cable
5 Screw
6 Sensor cable - cannot be shortened
7 Washer for centering and straining the sensor cable
A Gravity weight with small centering disk
B Garvity weight with big centering disk - cannot be shortened
Medium y
Water 10 mm (0.79 in)
Oil, bitumen 40 mm (3.15 in)
Solvents 40 mm (3.15 in)
Keep in mind that a min. distance must be maintained below the refer-
ence plane - measurement is not possible here (dead band).
The value y states the min. lower value of the measuring range. This
value depends on the medium.
Add the height of the mounting facility z and the offset of the medium
y, to calculate the total range that cannot be measured.