Yokogawa DR240 - Manual (Page 42)

3-1 IM DR231-01E
Installation and Wiring
3
3.1 General Precautions for Installation
Safety Precautions
Read the safety precautions
Make sure to read the safety precautions described on page 4 before using the instrument for the
first time.
Do not remove any covers from the instrument
For internal inspection or adjustment, contact your nearest sales representative. Addresses may be
found on the back cover of this manual.
In case of malfunctioning
Never continue to use the instrument if there are any symptoms of malfunctioning such as unusual
sounds, smell or smoke coming from the instrument. Immediately turn OFF the power and unplug
the power cord. When using an adapter for direct wiring to the power supply, immediately turn
OFF the power supply. Also disconnect the power to the equipment under measurement. Contact
your sales representative or nearest service center. Addresses may be found on the back cover of
this manual.
Power cable
Nothing should be placed on the power cable; it should also be kept away from any heat sources.
When unplugging the power cable from the outlet, never pull the cord itself. Always hold the plug
and pull it. If the power cable is damaged, contact your dealer for replacement. Refer to page 2 for
the part number when placing an order.
General Handling Precautions
Never place anything on top of the instrument
Never place another instrument or any objects containing water on top of the instrument.
Otherwise a failure may occur.
When moving the instrument
First turn off the power of the equipment being measured and disconnect the measurement
leadwires and the communication cable. Then turn the power switch of this instrument OFF and
unplug the power cable from the outlet. When carrying the instrument, securely hold the
instrument with both arms and take care not to drop it.
Ventilation openings
Do not block the ventilation openings in order not to raise the internal temperature.
Electrically charged objects
Don't bring electrically charged objects near the input terminals. The internal circuitry might be
damaged.
Chemicals
Do not pour volatile agents on the case nor leave the case in contact with rubber or PVC products
for a long period. The case is made of a thermoplastic resin, so take care not to let anything hot
such as a soldering iron touch the case.
Cleaning
When cleaning the case or any other part of the instrument, first remove the power cord from the
receptacle (and in case of direct connection, disconnect the power lines). Do not use volatile
chemicals since this might result in dis-coloring etc. Always use a dry, soft cloth for cleaning.
When not using the instrument for a long time
When the instrument is not being used for an extensive period of time, unplug the power cord
from the outlet (when using an adapter for direct wiring to the power supply, disconnect the
power cord from the outlet).