Sper Scientific 800103 Infrared IR Thermometer Gun 12:1 - Manual (Page 6)

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5. MEASURING PROCEDURES
See page 4-5 for display and button locations. For best
results, allow the thermometer to adjust to the ambient
temperature for 30 minutes before use. For accurate
readings, the IR lens must be clean (pg 7).
• Slide the Laser ON/OFF Selector (5) to turn the
Laser Guide (1) on or off.
• Slide the °C/°F Selector (4) to switch temperature
units.
• Point the IR Gun at the object to be measured.
• Pull and hold the Trigger (3) to obtain a continually
updated temperature until the trigger is
released. "SCAN" (10) flashes on the display.
• Release the Trigger (3), "HOLD" (12) and last
temperature reading is displayed for about 6 seconds
until the thermometer turns off.
Notes
• Your reading may fluctuate if the IR Gun is moved
during measurement.
• Emissivity is the ability of an object to emit or
absorb energy. The factory set emissivity value of
0.95 covers about 90% of typical applications. When
measuring highly reflective surfaces, apply masking
tape to the surface or a paint that has a 0.95
emissivity. If the object is covered with frost, clear
the frost to expose the surface prior to measurement.
6. BATTERY REPLACEMENT
• Replace the battery when the Low Battery
Indicator (8) is displayed.
• Open the battery cover, install a fresh 9V battery
and close the cover.