Sper Scientific 800102 Infrared IR Thermometer 8:1 - Manual (Page 5)

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4. BATTERY REPLACEMENT
• Replace the battery when the Low Battery Indicator (5)
is displayed.
• Open the battery cover, install a fresh 9V battery and
close the cover. Battery life expectancy is 16 hours.
5. MEASURING PROCEDURE
• Point the IR Gun at the object to be measured.
• Pull and hold the TRIGGER (1) to obtain a continually
updated temperature until the trigger is released.
"SCAN" (9) flashes on the display.
• Press the °C/°F BUTTON (8) to switch temperature
units.
• Press the LASER ON/OFF BUTTON (11) to turn the
LASER GUIDE (2) on or off.
• Release the TRIGGER (1) and last temperature reading
is displayed for approximately 6 seconds before turning
off. "HOLD" (9) is displayed.
6. CLEANING
Clean the lens with compressed air, use a soft brush, or
carefully wipe the surface with a moist cotton swab. Do not
use solvents on the lens. The housing may be cleaned
with mild soapy water on a cloth or sponge.