KROHNE SU 501 EX EN - Manual (Page 17)

- If the fail safe relay is deenergized, the red failure lamp
will light
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Yellow
- Relay control lamp
- The yellow relay control lamp reacts depending on the
set mode (A/B)
- In general, the relay control lamp indicates the
activated (energised) condition of the relay
- A dark relay control lamp means that the relay is
deenergised (transistor blocks)
Laterally on top (covered when mounted) there is a DIL switch
block with six switches. The individual switches are assigned
as follows:
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1 – A/B mode
- A – Max. detection or overfill protection
- B – Min. detection or dry run detection
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2 – Switch off delay (za)
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3 – Switch on delay (ze)
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4 – Integration time 2 s
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5 – Integration time 6 s
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6 – Integration time 12 s
With switch 1 you can adjust the mode (A – overfill protection
or B – dry run protection).
With switch 2 and 3 you can adjust the switch off and/or switch
on delay independently.
In the example (see previous illustration), mode A (max.
detection of overfill protection) is selected (switch 1). The
switch on delay is activated (switch 3) and the integration time
is set to 8 seconds (switch 4, 5 and 6).
With switches 4, 5 and 6 you can adjust the integration time.
The times of the activated time switches accumulate. If the
switch on (ze) and switch off delay (za) are switched on
together, the adjusted time applies to both delay modes.
Information:
Keep in mind that the integration time of the sensor and signal
conditioning instrument accumulate.
DIL switch block
SU 501 Ex - Signal conditioning instrument 17
Set up
27953
-EN
-050616