Leak detector type LAG 2000 A
part no. 15 071 53 e
9 / 28
Figure 3:
Example of above-ground tank with LDL tank and additional LDL tank
The LDL tank has
a ventilation
opening.
An LDL tank may
be connected
only with one
tank.
Deviating
from this, in the
case of larger
tanks several LDL
tanks may be
connected in
series at the same
height.
Replacing leak detectors on systems that were installed before 31 December 2002:
•
If more than 1 tank is monitored with one/several LDL tanks or one display unit, no
upgrade is required.
•
Several tanks may be monitored with several LDL tanks connected in series at the
same height and with just one display unit if this conforms with the approval
requirements.
A distinction is made between the following 2 tank storage scenarios to determine the number
of LDL tanks required:
Scenario 1:
Above-ground tank and underground tank with earth coverage < 30cm
4
)
The usable volume of an LDL tank must be at least 1 L per 35 L leak detector liquid in the
monitoring space.
One LDL tank is sufficient for 157.5L monitoring volume. That corresponds to tanks with a
storage volume of up to 20,000L.
The number of additional LDL tanks can be determined from the volume of the leak detector
liquid in the monitoring space shown in
Table 2
.
Table 2:
Volume of leak detector
liquid according to type label
on the tank
Number of required
LDL tanks
with sensor unit
Number of required
additional LDL tanks
litres sensor unit
0 to 157
.
5 Litres
1
0
158 to 315 Litres
1
316 to 472
.
5 Litres
2
473 to 630 Litres
3
631 to 787
.
5 Litres
4
