Liquistation CSF33 Operation
Endress+Hauser 111
Menu/Setup/Additional functions/Limit switches/Limit switch 1 ... 8
Function Options Info
Delta value Settings depend 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 status 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 ∆MV1 > Delta value
t
4
- t
3
>Auto Confirm and ∆MV2 < Delta value
t
6
- t
5
< Delta time and ∆MV3 > Delta value
Delta time 00:01 to 23:59
Factory setting
01:00
Auto Confirm 00:01 to 23:59
Factory setting
00:01
A0028526
34 Rate of change
10.6.2 Sensor cleaning programs
L
CAUTION
Cleaning not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent!
‣
If a cleaning system is connected, switch it off before removing a sensor from the
medium.
‣
If you wish to check the cleaning function and have therefore not switched off the
cleaning system, wear protective clothing, goggles and gloves or take other appropriate
measures.
Selecting the type of cleaning
The user can choose from the following cleaning types:
• Standard clean
• Chemoclean
• Chemoclean Plus
State of cleaning: Indicates whether the cleaning program is active or not. This is for
information purposes only.
Selecting the cleaning type
1. Menu/Setup/Additional functions/Cleaning: Select a cleaning program.
You can configure 4 different types of cleaning which you can assign individually
to the inputs.
2. Cleaning type: For each cleaning program decide which type of cleaning should be
performed.
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