IFM LT3922 handleiding
Handleiding
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LT39xx Electronic sensor for level and temperature
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4.4 Operating modes
For adjustment to existing application:
u Select the required operating mode.
• 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.
• 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.
• 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).
4.5 Notes on the 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; during this time, [Ξ Ξ Ξ Ξ] is shown in the display.
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 point [SP1] /
[FH1] is always below [OP]!
The overflow prevention OP is not assigned to a separate output! It offers additional protection and
only switches if, as the level rises, the switching output has not switched even though the
corresponding switch point has been exceeded (e.g. due to application-related malfunctions).
Typically the overflow prevention OP reacts when the selected measuring segment has been reached
(a few mm before the set OP value).
The overflow prevention OP reacts immediately and without delay. The set delay times (e.g. of a
switch point directly below) have no effect on the overflow prevention OP.
The response of the overflow prevention OP is indicated on the display ("Full" and indication of the
current level change every second).
4.6 Display function
The device displays the current level / the current temperature. The switching status of the switching
output is indicated by an LED.
The process value (level / temperature) can be changed temporarily in the operating mode:
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Productinformatie
| Merk | IFM |
| Model | LT3922 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 2799 MB |
