SAFETY - 9
For the Safe Handling of the System
To Avoid Serious Property Damage or Damage to the System
NOTICE
About the Power Supply
(1) Make sure the power supplied to the Tabletop Microscope is AC 100－240V (Min. 90V,
Max. 250V), 500 VA or higher (50/60Hz). Voltage fluctuations and superposed noise
on the power line can adversely affect the main unit.
(2) Be sure to connect the power line to a grounded three-prong outlet. Verify that the
grounding for the outlet is connected with a grounding resistance of less than 100Ω
Improper grounding not only makes the system vulnerable to external noise; it is also
dangerous due to a potential for electric shock associated with floating voltages.
About the Cable Connection
To prevent a system malfunction, when connecting the power cable or a dedicated cable, be
sure to turn off the earth leakage breaker and the power switch. In particular, when plugging
or unplugging a USB cable, do so by turning off the PC. Remember that performing a “Safe
removal of hardware” step on the PC and receiving a “USB device can now be removed
safely” message does not mean that the USB has been turned off. Plugging or unplugging
the USB cable in this condition can potentially damage the system.
About the Detector
The semiconductor backscattered electron detector is vulnerable to damage. Scratches made
on the surface of the detector element can cause performance degradation. To prevent
damage to the semiconductor backscattered electron detector, when adjusting the height of
the specimen stub, be sure to use the special specimen height adjustment jig.
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