User Manual

Maintenance
To clean the lenses, use compressed air to clear dust and other
particles, then carefully clean with a wet cotton swab. The cotton swab
should be moistened with clean water.
To clean the meter housing, wipe with a damp, soft cloth. Do not use
solvents or abrasives. Do not immerse the IRT227 in water or other
liquid.
Troubleshooting
Symptom
Action
OL display
Select a target within
range
-OL display
Select a target within
range
Battery icon
flashes
Replace Battery
Blank display
screen
Check and/or replace
battery
Incorrect/No
displayed
Press Up/Down arrow to
select
value
correct measurement
function
No Laser pointer
Ensure that the Laser
(LAS) is set
to ON in the Settings
mode
Replace the battery
Display
Turn the meter OFF then
pull
freezes/undefined
trigger again after 3
seconds
reading
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