Precautions And Safety Measures; Preliminary Instructions - HT Instruments HT3302 Notice D'utilisation

1. PRECAUTIONS AND SAFETY MEASURES

The instrument has been designed in compliance with the directives relevant to electronic
measuring instruments. For your safety and in order to prevent damaging the instrument,
please carefully follow the procedures described in this manual and read all notes
preceded by the symbol
The following symbol is used in this manual:
When this symbol is displayed, the instrument is able to emit a laser pointer.
Always prevent the laser from radiating to your eyes, in order to prevent
any injury. Class 3R laser device according to EN 60825-1.
1.1.

PRELIMINARY INSTRUCTIONS

 Use the instrument only as specified in this user manual. Improper use may
damage the instrument.
 During use and storage, keep the instrument away from direct sunlight or
sources of light, hot surfaces or objects, high temperatures, high humidity
or particularly critical environmental conditions.
 After a period of storage in extreme environmental conditions, let the
instrument resume normal operating conditions before using it.
 If the thermometer is moved quickly from a cold to a hot environment, some
condensation may appear on the focal lens which catches infrared
radiation.
measurements.
 Do not touch the internal focal lens.
 Make sure that the target is larger than the unit's spot size. The smaller the
target, the closer you should be to it. When accuracy is critical, make sure
the target is at least twice as large as the spot size.
 Do not carry out measurements under conditions exceeding the limits
specified in § 7.
 Make sure that batteries are correctly installed.
 Do not carry out any measurement if you notice anomalous conditions such
as breakages, leakages of battery liquid, blind display, etc.
 This instrument is not recommended for use in measuring shiny or polished
surfaces (stainless steel, aluminum, etc.).
 The instrument cannot measure temperature through transparent surfaces
such as glass. The instrument will measure the surface temperature of the
glass instead.
 Steam, dust, smoke, etc. can prevent accurate measurement.
with the utmost attention.
CAUTION
CAUTION
Wait for the condensation
EN - 2
to dissipate before
HT3302
taking