Siemens SITRANS L Pointek ULS200 Gebruiksaanwijzing - Pagina 29
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Low level alarm switch
This application uses the device to provide one or two low level alarms.
If the material can fall below the unit's range, the device loses the echo, and if prolonged,
defaults to fail-safe operation. The fail-safe default should be set to suit the application.
Fail-safe = 1, 2, or 3
①
Low-low (e.g. 4.5 m)
②
Low (e.g. 3.5 m)
③
Blanking (e.g. 0.5 m)
④
Range limit (e.g. 5.5 m)
Application adjustments
Alarm function
Alarm setpoint
Fail-safe alarm
Pointek ULS200
Operating Instructions, 01/2019, A5E32268616-AB
Fail-safe = 2 or 3
①
Low-low (e.g. 4.5 m)
②
Low (e.g. 3.5 m)
③
Blanking (e.g. 0.5 m)
④
Range limit (e.g. 5.5 m)
3 - low/low-low alarm
•
5 - low/LOE alarm
•
Set the low and/or low-low alarms to the desired
values.
1 - high
•
2 - low
•
3 - hold
•
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