PRECAUTIONS
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is Litematic VL-50A series is a high-accuracy digital measuring instrument. To attain the
hest possible performance of your Litematic, observe the following precautions prior to use.
IMPORTANT
1) Installation Environments
Install this instrument under the following environments.
• A place where the ambient temperature is retained between 10°C and 40°C.
• Place where there is little dust and dirt, no rapid change in humidity and temperature,
and the instrument is not exposed to direct sunlight and hot blow from the air
conditioner, etc.
• A place which is separated from equipment that uses a high voltage and a large
current, its power source, and large power relays.
• A place where there is little vibration, such as a strong desk top.
2) Mounting Orientation
Use the measuring unit while keeping the spindle perpendicular to a workpiece. Unless
the spindle is in the perpendicular orientation, it will not operate properly. Do not turn
on the power supply.
3) Handling the Spindle
• When setting the measuring unit on the dedicated stand or fixture, do not apply an
excessive force to the spindle, observing the procedure described in this manual.
• To prevent the measuring accuracy from deteriorating, avoid applying direct sunlight
and hot blow to the spindle or touching it by hand so as not to change the spindle
temperature during measurement.
4) Measuring accuracy
This instrument assures the rated measuring accuracy at a room temperature of 20°C ±
1°C. If measurement that requires a high accuracy is performed at a room temperature
other than specified, it is recommended that a workpiece be measured in comparison
with a gauge block or other gage.
5) Power supply
Avoid drawing the power to this instrument from the outlet that is shared with other
equipment (particularly motor-driven equipment). Supply this instrument power from an
independent outlet, wherever possible.
No. 99MBC082B
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