Nivobob
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NB 3000
gi130109
38
Continuous level measuring system
NB 3000
Technical information / Instruction manual
page G
Rope
Measurements per day
Li
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Diagnostics: Maintenance
Rope/Tape lifetime
The expected life time (measurement cycles) for the rope/tape is:
Rope version:
approx. 100000
Tape version:
approx. 250000
Note: These values refer to lifetime tests under the following conditions:
No excessive material influence. The sensor weight meets an inclined
surface, so that an oscillating movement of the sensor weight during upwards
movement is caused.
The maintenance message is displayed at 70%, the failure message
at 90% of the expected lifetime to provide some safety. For further
information see message M16 and F16.
See figure on right hand for the operating time depending on the
measurement cycles per day.
For applications with adverse conditions it is recommended to change
the rope/tape more frequently.
Motor lifetime
The expected life time (run time) for the motor is:
Version for high measurement frequency (brushless motor):
approx. 60000 hours
Version with standard motor (brush motor):
approx. 3500 hours
The maintenance message is displayed at 70%, the failure message
at 90% of the expected lifetime to consider some safety. For further
informations see message M17 and F17.
See figure on right hand for the operating time depending on the
measurement cycles per day.
Brush motor
10m*
*average measurement distance
Measurements per day
Li
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Brush motor
20m*
Tape
