Extech Instruments 42512 Manuale Utente Pagina 6

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42512-en-GB_V7.3 11/14
6
Lock feature
The LOCK feature disables the Auto Power Off feature for the period of use when selected. The
feature is useful for long term temperature monitoring and hands free use. The meter will revert to
auto power off if the trigger is pressed during a locked scan.
Over-range Indication
If the temperature measurement exceeds the specified temperature range, the thermometer will
display dashes in place of a temperature reading.
Battery Replacement
When the low battery symbol appears on the display, replace the meter’s
battery (9V). The battery compartment is located behind the panel that surrounds
the meter’s trigger. Open the compartment by pulling the panel down from the
trigger area. Replace the 9V battery and close the battery compartment cover.
You, as the end user, are legally bound (Battery ordinance) to return
all used batteries and accumulators; disposal in the household
garbage is prohibited!
You can hand over your used batteries / accumulators at collection points in your
community or wherever batteries / accumulators are sold!
Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the
end of its lifecycle
IR Measurement Notes
1. The object under test should be larger than the spot (target) size calculated by the field of view
diagram (printed on the side of the meter and in this guide).
2. Before measuring, be sure to clean surfaces that are covered with frost, oil, grime, etc.
3. If an object's surface is highly reflective, apply masking tape or flat black paint to the surface
before measuring. Allow time for the paint or tape to adjust to the temperature of the surface it is
covering.
4. Measurements through transparent surfaces such as glass may not be accurate.
5. Steam, dust, smoke, etc. can obscure measurements.
6. The meter automatically compensates for deviations in ambient temperature. However, it can
take up to 30 minutes for the meter to adjust to extremely wide changes.
7. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and
down or side to side motion) until the hot spot is located.
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