9
UK
5.2.1 Operating modes
1. Manual media selection with overflow prevention (factory setting)
Recommended!
Highest operational reliability!
The medium to be detected is set manually [MEdI]. In addition, an integrated,
independently functioning overflow prevention is available.
2. Manual media selection without overflow prevention
Medium operational reliability!
The medium to be detected is set manually as described under 1. However,
the overflow prevention is deactivated. For this reason, no adjustment is
required.
3. Automatic medium detection
Lowest operational reliability!
Each time the operating voltage is switched on, the unit adjusts itself to the
medium and the installation environment.
For automatic media detection,
no
overflow prevention is available.
Automatic media detection can only function properly under certain
conditions (e.g. compliance with special mounting specifications,
restrictions for operation and maintenance).
5.2.2 Notes on integrated overflow prevention
With the parameter [OP] (OP = overflow prevention), one of the upper measuring
segments is defined as integrated overflow prevention OP.
• If the overflow prevention OP is activated, an adjustment to the installation
situation has to be made [cOP]. Otherwise, the unit is not ready for operation;
[
] is displayed until readiness
.
• The overflow prevention OP can be deactivated ([OP] = [OFF]).
Deactivating the overflow prevention OP can impair the operational
reliability. For optimum operation and maximum operational reliability, we
therefore recommend to
not
deactivate the overflow prevention OP.
• The overflow prevention OP is the maximum limit of the measuring range. The
switch points [SPx] / [FHx] are always below [OP]!
