Level limit switch
Series VN 1000 / 2000 / 5000 / 6000
Technical information / Instruction manual
page
Additional Safety Instructions for Hazardous Locations
Installation in Zone 20
If installing the whole unit in zone 20, the power supply shall be rated for a prospective short circuit
current of not more than 10 kA. Details of EN 60079-14/ ABNT NBR IEC 60079-14 must be obeyed.
Installation in Zone 0
(Electronics: „NAMUR“
and “8/16mA or 4-20mA”)
The intrinsic safe supply circuit must have galvanic isolation to non intrinsic safe part. Otherwise
measures for protection against lightning must be taken. See EN 60079-14/ ABNT NBR IEC 60079-14.
Power supply
(Electronics: „NAMUR“
and “8/16mA or 4-20mA”)
The type of protection (intrinsic safe) is only valid when connecting to a certified intrinsic safe power
supply (associated apparatus).
Field wiring terminals for
“de” housing
Fixing torque :
0,5-0,6 Nm
Remove wire isolation:
9 mm
Field wiring
A strain relief must be provided for the field wiring cables, when the device is installed with the factory
provided cable glands.
External equipotential
bonding terminal
Connect with
equipotential
Version with seperate housing must be
bonding to
grounded additionally at the vibrating fork.
the plant
Cable glands and conduit
system for ATEX/
IEC-Ex/ TR-CU
(Dust and Gas Hazardous
Locations)
Installation according to the regulations of the country, where the product is installed.
Not used entries have to be closed with blanking elements certified for this purpose.
Where available the factory provided parts must be used.
A strain relief must be provided for the field wiring cables, when the device is installed with the factory
provided cable glands.
The diameter of the field wiring cable must match to the clamping range of the cable clamp.
If other than the factory provided parts are used, following must be ensured:
The parts must have an approval adequate to the approval of the level sensor (certificate and type of
protection).
The approved temperature range must be from the min. ambient temperature of the level sensor to the
max. ambient temperature of the level sensor increased by 10 Kelvin.
The parts must be mounted according to the instructions of the supplier.
Installation of a flameproof/ explosion proof enclosure with a conduit system:
In a conduit system single electric conductors are installed in a certified pipe system. This pipe system
is in a flameproof/ explosion proof construction as well. The flameproof/ explosion proof enclosure
and the pipe system needs to be sealed from each other by a certified flameproof seal of a type “d”
or explosion proof of a type “XP”.This seals shall be installed directly in or at the conduit entries of
the flameproof/ explosion proof enclosure. Not used entries have to be closed with blanking elements
certified for this purpose (flameproof type “d” or explosion proof type “XP”).
Electrical installation
Vibranivo
®
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VN 1000 / 2000 / 5000 / 6000 g
gi180713
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