Continuous level measuring system
NB 4000
Technical information / Instruction manual
page G
Rope
Measurements per day
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Rope / Tape / Motor lifetime
Rope/Tape lifetime
The expected life time (measurement cycles) for the rope/tape is:
Rope version:
approx. 200.000
Tape version:
approx. 500.000
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 failure message is displayed at 90% of the expected lifetime to
provide some safety. For further information see message 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 approx. 3.500
hours.
The failure message is displayed at 90% of the expected lifetime to
consider some safety. For further informations see message F17.
See figure on right hand for the operating time depending on the
measurement cycles per day.
10m*
*average measurement distance
Measurements per day
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20m*
Tape
Nivobob
®
1
2
3
4
5
6
7
8
9
10
11
12
NB 4000
gi010413
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