IFM Electronic Efector 160 LK1222, Руководство по эксплуатации

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- Hno = hysteresis / NO
- Hnc = hysteresis / NC
- Fno = window function / NO
- Fnc = window function / NC
For specially long pump cycles a switch-off delay ( dr1 ) of up to 5 s
can be additionally set (only for hysteresis function).
• b) The overflow output OUT-OP works as an independent over-
flow protection . For safety reasons it is fixed to NC (normally
closed principle). It is continuously monitored for its function.
A measuring segment of the sensor probe is selected as overflow
protection point OP (
→
page 56) and assigned to the output OUT-
OP. As soon as OP responds the overflow output opens and the
operating output is switched according to its configuration in the
same way as for the "full" state.
• The zone between tank bottom and lower edge of the measuring
probe can be entered as offset value (OFS) . Thus display and
switch points refer to the real level.
• The sensor can be adjusted to the medium used (
→
page 55).
• Wave movements of the medium are smoothed.
•
Display of the current level, unit cm ( ) or inch ( ).
Restriction of the application area
• The sensor is not suitable for extremely conductive and adhering
media, granulates and bulk materials, acids and alkalis. It is not suit-
able for food and electroplating applications.
• The sensor is not suitable for use in grinders.
• It is possible that foam of good conductivity is detected as level.
Check the effects in your application.
• For water and hydrous media with temperatures > 35°C the unit
must be mounted into a climatic tube (order no. E43100, E43101,
E43102).
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ENGLISH