NEC US40a, User Manual

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18 About US40a
Do not place US40a in the following places. Placing US40a in such places may cause malfunctions
of US40a.
„
Places with drastic changes in temperature (e.g., near a heater, air conditioner, or
refrigerator)
„
Places with strong vibration
„
Places where corrosive gases exist (in environment where sulfur vapor may be dispersed
in the air). Places where chemicals are nearby, or chemicals may be sprayed accidentally.
„
On a non-antistatic carpet
„
Places with possibilities of falling objects
„
Places where the power cord or interface cable may be stepped on or stumbled
„
Places near a device generating intense magnetic field (such as a TV, radio,
broadcast/communication antenna, power transmission wire, and electromagnetic crane)
(If unavoidable, contact your service representative to request proper shield construction.)
„
Places where a power outlet that shares the ground line with another (especially the one to
which a device with large power consumption is connected) must be used for US40a
„
Places near equipment that generates power noise (e.g., contact spark at power-on/power-
off of commercial power supply through a relay). (To install US40a near equipment that
generates power noise, ask your service representative for separating the power wiring or
installing a noise filter.)