LR7009
Electronic level sensor
16
u
Avoid non-flush installation.
D
u
If necessary, use seals or washers (D) to reach the required height.
u
For tanks with thick walls arrange for sufficiently deep recesses to
ensure flush installation.
5.5.2 Installation in closed metal tanks (with flange plate)
Flange plates are not supplied. They must be ordered separately:
Ò
Accessories.
d
u
Arrange for a hole in the tank lid. It must have a minimum diameter
(d) to enable sufficient transfer of the measured signal to the probe.
The diameter depends on the wall thickness of the tank lid:
Wall thickness [mm]
1...5
5...8
8...11
Bore hole diameter d [mm]
35
45
55
u
Install the flange plate with the flat surface showing to the tank and fix it with appropriate screws.
A
B
R
A.
sensor seal
B:
tank seal
R:
tank lid / launching plate
A seal (B) can be inserted between flange plate and tank. Some flange plates are supplied with
a seal.
u
Ensure cleanness and evenness of the sealing areas, especially if the tank is under pressure.
Tighten the fixing screws sufficiently.
u
Screw the device into the flange plate using the process connection and tighten firmly.
u
Make sure that the supplied sensor seal (A) is correctly positioned.
