Level limit switch
Series VN 1000 / 2000 / 5000 / 6000
Technical information / Instruction manual
page
Detection of solids in water
CAUTION:
Detection of solids in water only permitted with types VN 1020/ 1030/ 5020/ 5030.
Other types on request.
Process pressure
Improper installation may result in loss of process pressure.
Chemical resistance
against the medium
Materials of construction are choosen based on their chemical compatibility (or inertness) for
general purposes. For exposure to specific environments, check with chemical compatibility charts
before installing.
VN ..050:
Consider the chemical compatibility of the extension cable (material PUR) and the rubber seals on
both ends of the extension cable (material neoprene).
Mechanical load
The torque at the fastening spot must not exceed
300 Nm (VN ..030) or
100 Nm (VN ..040)
Maximum length „L“ in relation
to the deviation (in degrees) from vertical installation:
Mounting location
Comply with distance from incoming material and from the silo wall.
The installation has to be done in a way, that the sensor elements cannot hit the wall of the silo. The
flow of the medium and fixtures in the container must be considered. This is especially important
for extension lengths of more than 3 m (118.1“).
2“ sliding sleeve
Tighten both locking screws M8 with 20 Nm
to obtain resistance against pressure.
Flange mounting
A plastic sealing must be used to tighten the flange.
Fastening of the 1½”
process connection
Mounting torque for the 11/2” thread may not exceed 80 Nm.
Use a 50 mm (1.97“) open-end wrench (do not turn the housing).
Food grade material
The materials are available for the use under nornal and predictable applications (according to
directive 1935/2004 Art.3). Other conditions can influence the safety.
Max. deviation
Max. length “L”
5°
4,000 mm (157.5“)
45°
1,200 mm (47.24“)
>45°
600 mm (23.62“)
Load
Mounting
General Safety Instructions
Vibranivo
®
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VN 1000 / 2000 / 5000 / 6000 g
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