WIKA FLM - Handbuch (Seite 5)

GB
WIKA operating instructions level sensor model FFG 5
13445627.01 12/2010 GB/D/F
Prior to starting operation please check all devices for their proper
connection, operability and power supply; this shall also apply to
assemblies coupled thereto.
The general operating instructions of all devices as used must be
abided by.
Measures should be taken preventing personal injuries and damage
to property from occurring in case of a defective condition of the level
sensor system.
The level sensor system must not be operated in the direct vicinity of
strong electromagnetic fields (minimum distance: 1 m).
The level sensor system must not be exposed to heavy mechanical
strain.
The maximum power and voltage values for the intrinsically safe
operation as specified in the assembling and operating instructions
should be adhered to.
The safe operation of the system with a view to
pressure and temperature of the materials as emplo-
yed shall be Operator’s responsibility.
As even in case of failure, the guide tube does not exhibit a
source of ignition there are no objections, in terms of safety,
to use the sensor (float and guide tube) as an operating
unit of the 1/2 category with containers for combustible
fluids (except for carbon disulphide and silicon-organic
compounds) under varying atmospheric conditions at
excess pressures of up to 25 bar and temperatures of
between -60 ... +250 °C.
1. Safety information