
14
Before carrying around the instrument turn off power to the object under test, and then the POWER key
of the instrument. If you are using an Charger, disconnect the power cord from the wall outlet. Finally,
detach all lead cables from the instrument. Use a dedicated carry case when transporting the instrument.
Donotbringanyelectrifiedobjectclosetotheinputterminals,sincetheinternalcircuitmaybedestroyed
Donot applyany volatilechemical totheinstrument's caseor operationpanel. Donot leavethe instrumentin
contactwithanyproductmadeofrubberofvinylforaprolongedperiod.Becarefulnottoletasolderingironor
any other heat-emitting object come into contact with the operation panel, as th panel is made of
thermoplasticresin.
Before cleaning the instrument's case or operation panel disconnect the power cord plug from the wall
outlet if you are using an Charger. Use a soft, clean cloth soaked in water and tightly squeezed to gently
wipe the outer surfaces of the instrument. Ingress of water into the instrument can result in malfunction.
If you are using an Charger with the instrument and will not use the instrument for a prolnged period,
disconnect the power cord plug from the wall outlet.
For handling precautions regarding the batteries, see "Installing or Replacing the Batteries."
Never use the instrument with the cover of the battery holder opened.
Environmental Requirements
Use the instrument in locations that meet the following environmental requirements :
Ambient temperature and humidity. 0
Ambient temperature range : 0 to 50 C
Ambient humidity range : 20 to 80% RH. Use the instrument under non-condensing condition.
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General Handling Precautions
15
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Do not use the instrument in locations that are
lExposed to direct sunlight or close to any heat source.
lExposed to frequent mechanical vibration.
lClose to any nose source, such as high-voltage equipment or motive power sources.
lClose to any source of intensive electric or electromagnetic fields.
lExposed to large amounts of greasy fumes, hot steam, dust or corrosive gases.
lExposed to unstable or a risk of explosion due to the presence of flammable gases.
Note :
lUse the instrument under the following environmental conditions if precise source or measurement is
your requirement. 0
Ambient temperature range : 23+5 C;
Ambient humidity range : 20 to 80% RH (non-condensing) 0 0
lWhen using the instrument within a temperature range of 0 to 18 C or 28 to 50 C, add a value
based on the temperature coefficient shown in Chapter 18 "Specifications" to the given accuracy rating.
lWhen using the instrument at an ambient humidity of 30% or lower, prevent electrostatic charges from
being produced, by using an antistatic mat or any other alternative means.
lCondensation may occur if you relocate the instrument from places with low temperature and humidity to
places with high temperature and humidity, or if the instrument experiences any sudden temperature
change. In that case, leave the instrument under the given ambient temperature for at least one hour to
ensure that the instrument is free from condensation, before using the instrument.
Flatandlevellocations