Endress+Hauser Liquiline CA80SI, Руководство по эксплуатации

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Operation Liquiline System CA80SI
94 Hauser
Menu/Setup/Additional functions/Limit switches/Limit switch 1 ... 8
Function Options Info
Cleaning program Selection
• None
• Cleaning 1 ... 4
Factory setting
None
Use this function to choose which cleaning
instance should start when the limit switch is
active.
Function Selection
• Off
• On
Factory setting
Off
Activating/deactivating the limit switch
Operating mode Selection
• Above limit check
• Below limit check
• In range check
• Out of range check
• Change rate
Factory setting
Above limit check
Type of limit value monitoring:
• Limit value overshoot or undershoot→  66
• Measured value within or outside a range
→  67
• Rate of change →  69
Limit value Settings depend on the
measured value Operating mode = Above limit check or Below
limit check
1
2
t
MV
t
1
t
2
t
3
t
4
t
5
1
2
t
MV
t
1
t
2
t
3
t
4
t
5
A B
A0028523
 66 Exceeding (A) and undershooting (B) a limit value (without hysteresis and switch-on delay)
1 Limit value
2 Alarm range
t
1,3,5
No action
t
2,4
An event is generated
• If measured values (MV) are increasing, the relay contact is closed when the switch-on point is exceeded
( Limit value + Hysteresis ) and the start delay ( Start delay ) has elapsed.
• If measured values are decreasing, the relay contact is reset when the switch-off point is undershot ( Limit
value - Hysteresis ) and after the drop-out delay ( Switch off delay ).