No. 99MBA091A
vi
Installation Environments
Temperature
This measuring microscope has been assembled and adjusted in the
temperature-controlled room at 20°C. To use the microscope at the rated measuring
accuracy in the specification, the temperature at the installation site should be close to
20°C with minimum temperature fluctuation. (The ideal temperature is standard
temperature condition level 1, 20°C ± 1°C, that is specified as “Standard Condition of
Precision Measurement Environments” in JMAS5011.) Also, the temperature gradient
should be 2°C as reference for 8 hours. If this temperature environment is worse than the
above condition, the microscope may not meet the specified measuring accuracy. Even if
the specified accuracy is temporarily obtained by adjustment, uncertain measurements will
be displayed at 20°C.
Humidity
Humidity is not directly related to the measuring microscope accuracy. If the ambient
humidity is high, rust will easily form on important machined surfaces and may affect
electronic parts adversely. Efforts should be made to retain humidity between 55 and 65%.
Dust and dirt
The measuring microscope consists of high-precision parts such as guide ways, linear
scale units, and optical units that are apt to be easily damaged by dust and dirt. Use the
microscope at a site free of dust and dirt.
Grounding
To operate the measuring microscope properly, be sure to connect the GND terminal to
the earth terminal with a grounding resistance of 100Ω or less (conforming to Class 3
grounding construction). Also, if a system is to be configured along with other instruments,
make sure all the instruments are properly grounded at the power supply with a complete
ground terminal, and then connect the signal cables between them.
System Environments
Place The indoor use
Use altitude 2000m or less
Use temperature 5～40℃
Use humidity 80％or less（There must not be be dewy.）
Preservation environments
Preservation temperature -10～50℃
Preservation humidity 80％or less（There must not be be dewy.）
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