Page 48 MiniRanger Plus 7ML19981CJ01
Applications
High Level Switch
The MiniRanger Plus can be programmed as a high level switch. Significant
differences between this and other modes of operation are:
• the fail-safe function (P070 and P071) is effectively disabled
• on loss of echo, the measurement immediately defaults to a low value
(P006)
• relay setpoints are measured from the face of the transducer
• the reading is distance from the face of the transducer to the material
A high level switch application is primarily used to detect a high level
condition. As such, aim the transducer so that it is perpendicular to the
material angle of repose at the alarm level when filling.
Example
A high level switch is required in a corn silo when the material comes within
1 m of the transducer face. The maximum filling rate is 0.2 m / min.
P113, 2m
P112, 1m
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