vii
When using the unit near rotating machinery, take care the strap VM-63-017
cannot be caught in the machinery.
In case of malfunction, do not attempt any repairs. Note the condition of
the unit clearly and contact the supplier.
Dispose of the unit and of used batteries in accordance with local laws
and regulations. The unit does not contain any substances harmful to the
environment. Treat the unit as non-combustible waste.
In order to maintain continued precision, have the unit checked and serviced
once per year. Contact the supplier.
To clean the unit, use only a dry cloth or a cloth lightly moistened with
lukewarm water. Do not use solvents or alcohol-based cleaners.
When mounting and dismounting the microphone and sound calibrator,
do not rotate the sound level meter or sound calibrator. Otherwise the
protective grid of the microphone may become loose or detached, causing
damage to the microphone diaphragm.
Summary of Contents for NC-75
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Page 45: ...33 Specifications Unit mm Dimensional Drawings 70 77 42...
Page 46: ...No 61932 17 11...
