Afriso EURO-INDEX KAV, Operating Instructions Manual, Page: 38 / 76

Maintenance
KAV 13
6.2 Function test with tester (can be performed with any tank
level)
Basic information for function test with tester
1 KAV
2 Maximum liquid level
3 Tank level above filter
cup (usually lowest
point of the system)
4
5
6
Fuel oil de-aerators
Fuel oil consumer
Tester
Fig. 6: System overview and tester
Assuming that the filter cup is usually the lowest point of the line, the
following criterion must be met for anti-siphon protection:
[p
Gauge
+ p
g,max
– p
3
] < 0
p
Gauge
is directly indicated by the pressure gauge of the tester.
p
g,max
corresponds to the hydrostatic oil column when the tank is com-
pletely filled; it is determined as follows:
p
g,max
= 0.084 bar/m x h
max
p
3
corresponds to the hydrostatic oil column with the current level; it
is determined as follows:
p
3
= 0.084 bar/m x h
3
h
max
and h
3
may have to be determined at the system using a rul-
er/yardstick.