Niigata seiki LEVELNIC DL-S3 DL-BW, Руководство по эксплуатации

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[Precautions]
Since this device is a precision class measuring instrument, exercise good caution in using it and
carrying it, so that no impact or exceedingly large pressure will be applied to its measuring
surface or main body.
The measuring surface at the bottom of the level base is a particularly critical part for its function.
Exert extreme care about rust inhibition.
After you have used the device, clean it of dirt and stains, and apply rust-inhibitive oil to the
measuring surface at the bottom of the level base, before storing it in the carrying case.
If the device is not going to be used for an extended period of time, be sure to remove the battery.
For storage, avoid a location under direct sunlight or susceptible to high temperature, and select
a place with little temperature variation and low humidity.
Presence of burrs and dirt on the object to be measured could leave nicks in the measuring
surface of the device and the object under measurement. Remove such foreign matters
beforehand.
Avoid using the device near a magnet or in a location where intense magnetic field is generated.
Notice that, if the device is used as a sort of supplementary utensil, it will readily be nicked or
rusted.
Do not use the device for any other purpose than for its original application.