THH-500
7
Operation
Troubleshooting
Code
Problem
Action
—
Target temperature is
Select target within unit’s specifications
over or under range
Battery icon
Battery is low
Replace battery
Blank display
Battery is dead
Replace battery
Laser won’t work
Low or dead battery
Replace battery
1.
See Typical Measurements for specific measuring instructions.
2.
Test the unit on an object with a known temperature.
• If the unit does not function as expected on an object of known temperature, replace
the battery.
• If the unit still does not function as expected, send the unit to Greenlee for repair.
3.
Point the temperature sensor at the object to be measured. Press the On Button. The
temperature reading (C
°
or F
°
) will appear on the display.
4.
Release the On Button. “Hold” will appear to indicate that the unit is holding the last
recorded temperature on the display. The reading will remain for 7 seconds.
Locating a Hot Spot
To find a hot spot, aim the thermometer outside the area of interest then scan across with an
up and down motion.
AVOID EXPOSURE –
LASER RADIATION IS
EMITTED FROM THIS
APERTURE.
LASER RADIATION – DO
NOT STARE INTO BEAM
OUTPUT < 1 mW
WAVELENGTH 630-670 nm
CLASS II LASER PRODUCT
COMPLIES WITH
FDA 21 CFR
SUBCHAPTER J
C A U T I O N
< 1 mW/630–670 nm
IEC 825/93
LASER LIGHT
DO NOT STARE INTO BEAM
CLASS 2 LASER
