Maintenance; Troubleshooting; Replacing Batteries - Extech Instruments IR270 User Manual

Maintenance
Cleaning
Use compressed air to clear dust and other particles from the meter lenses, and then carefully
clean with a moistened (clean water) cotton swab.
To clean the meter housing, wipe with a damp, soft cloth. Do not use solvents or abrasives. Do
not immerse the IR270 in water or in other liquids.
Troubleshooting
Symptom
'HI' display icon
Battery icon flashes
Out‐of‐focus or 'cloudy'
display screen
Laser pointer does not
appear when enabled
Replacing Batteries
When the battery icon flashes, or when the meter does not switch ON, replace the battery.
The battery compartment is located in the meter handle. The battery compartment cover is
located just below the trigger. Pry the compartment cover loose (from the top of the
compartment) to open the compartment.
Replace the 9V battery following correct polarity and then close the battery compartment
before using the meter.
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate collection
sites, the retail store where the batteries were purchased, or wherever batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to take
end‐of‐life devices to a designated collection point for the disposal of electrical and electronic
equipment.
Problem
Target temperature over‐range
Low battery power
Low battery power
Defective laser
8
Action
Select a target within range
Replace battery
Replace battery
Return the meter for service
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