Additional functions Liquistation CSF48
96
6.2 Cleaning programs
Start delay 0 to 9999 s
Factory setting
0 s
Operating mode="In range check", "Out of range
check","Above limit check" or "Below limit check"
Synonyms: pick-up and drop-out delay
Switch off delay
Delta value Settings
Depends on the measured
value
Operating mode="Change rate"
The slope of the measured value (MV) is monitored in
this mode.
An event is generated if, in the given timeframe (Delta
time), the measured value increases or decreases by
more than the specified value (Delta value). No further
event is generated if the value continues to experience
such a steep increase or decrease.
If the slope is back below the limit value, the alarm sta-
tus is reset after a preset time (Auto Confirm).
Events are triggered by the following conditions in the
example given:
t
2
- t
1
< "Delta time" and MV
1
> "Delta value"
t
4
- t
3
> "Auto Confirm" and MV
2
< "Delta value"
t
6
- t
5
< "Delta time" and MV
3
> MV
Delta time 00:01 ... 23:59
Factory setting
01:00
Auto Confirm 00:01 ... 23:59
Factory setting
00:01
a0018100
Abb. 12: Change rate
Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4
Function Options Info
Cleaning type Options
•Standard clean
•Chemoclean
Factory setting
Standard clean
Cleaning time 5 to 600 s
Factory setting
10 s
Cleaning time... Cleaning duration
The cleaning duration and interval depend on the
process and sensor. Determine the variables empirically
or based on experience.
The interval value can be between 1 minute and 7 days.
Example: You have set the value "01-00:00". Each day,
the cleaning cycle starts at the same time you started the
first cleaning cycle.
Cleaning interval 00-00:01 to 07-00:00
(DD-hh:mm)
Factory setting
01-00:00
Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8
Function Options Info
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