HT instruments HT3310 - Manual (Page 3)

HT3301-HT3310
EN - 2
1. SAFETY PRECAUTIONS AND PROCEDURES
This instrument complies with EMC standards related to electronic measuring equipment.
For your own safety and to avoid damaging the instrument follow the procedures
described in this instruction manual and read carefully all notes preceded by this symbol
.
The following symbol is used in this manual:
CAUTION
When this symbol is displayed, the meter is radiating the laser. Always prevent
the laser from radiating to your eyes. Class II laser apparatus according to EN
60825-1.
1.1. PRELIMINARY
CAUTION
• Use the meter only as specified in this manual. An improper use may
damage the instrument or its components
• During usage and storage, keep the meter away from direct sunlight or
strong sources of light, hot objects (70
℃/158℉), high temperatures, high
humidity or dust
• After a period of storage in extreme environmental conditions exceeding
the limits mentioned in this manual let the instrument resume normal
operating conditions before using it
• If the meter is moved quickly from a cold to a hot environment, some
condensation may appear on the focal lens. In this case wait for the
condensation to dissipate before taking measurements
• Do not touch the 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
• Only the accessories supplied with the instrument guarantee compliance
with the safety standards in force. They must be in good conditions and, if
necessary, replaced with identical ones
• Do not perform measurements beyond the limits specified in chapter 9
• Make sure that the battery is properly installed
• Avoid doing that if you notice anomalous conditions such as breakages,
deformations, fractures, leakages of battery liquid, blind display etc
• This meter is not recommended for use in measuring shiny or polished
metal surfaces (stainless steel, aluminum, etc.)
• The unit cannot measure through transparent surfaces such as glass. It will
measure the surface temperature of the glass instead
• Steam, dust, smoke, etc., Can prevent accurate measurement by
obstructing the unit’s optics