Performance Tool W89721 User manual
Infrared Thermometer
OWNER'S MANUAL
Stock Number W89721
Temperature Range -50 - 380°C (-58 - 716°F)
Accuracy +1.5% or +1.5°C
Resolution .1°C (0.1°F)
Response Time <0.8s
Emissivity 0.95 Fixed
Distance to Spot Ratio 12:1
Spectral Response 8:14um
Storage Temperature 0~40°C (32~140°F)
Operating Temperature -20~60°C (-4~140°F)
Power 9V
PRODUCT SPECIFICATIONS
Introduction
INTRODUCTION
Compact rugged and easy to use. Just aim and push the button, it reads
current surface temperatures in less than a second. Safely measure surface
temperatures of hot, hazardous or hard-to-reach objects without contact.
How it works
HOW IT WORKS
Infrared thermometer measures the surface temperature of an object. The
unit’s optical sensor emitted, reected, and transmitted energy which is col-
lected and focused onto a detector. The unit’s electronics translate the infor-
mation into a temperature reading which is displayed on the unit. The laser
makes aiming and measurement even more precise.
WARNING:
Do not point laser directly or indirectly (through reective surfaces) at eye.
FOR YOUR SAFETY,
please read these instructions carefully and retain them for future use.
IMPORTANT SAFETY INSTRUCTIONS
READ AND UNDERSTAND ALL
INSTRUCTIONS
Failure to follow all instructions detailed in
this manual may result in serious personal
injury. SAVE THESE INSTRUCTIONS
Infrared thermometer should be protected
from the following:
-EMF (electro-magnetic elds) from arc
welders, induction heaters.
-Thermal shock (caused by large or
abrupt ambient temperature changes,
it allows 30 minutes for unit to stabilize
before use.)
-Do not leave the unit on or near objects
of high temperature.
WARNING:
Do not point laser directly or indirectly
(through reective surfaces) at eye.
1. Pull battery door clip and install battery
correctly. Press the trigger, LCD display
shows reading & battery icon. Release
the trigger and the reading will hold for 15
seconds.
2. Locating a hot spot: To nd a hot spot,
aim the thermometer outside the area of
interest, then scan across with an up and
down motion until you locate the hot spot.
(Turn on the laser pointer for accurate
measuring).
1. Lens cleaning: Use clean compressed
air to blow off loose particles. Use a clean
soft brush to remove any debris away.
If necessary clean with a clean damp cot-
ton cloth.
2. Case cleaning: Clean the case with a
damp sponge/cloth and mild soap.
Note:
Do not use solvent to clean lens.
Do not submerge the unit in water.
1. When taking a measurement point
thermometer toward the object to be
measured and hold the trigger. The object
under test should be larger than the
spot size calculated by the eld of view
diagram.
2. Distance & spot size: As the distance
from the object increases, the spot size of
measuring area becomes larger.
3. Field of view: Make sure that the target
is larger than the unit’s spot size. The
smaller the target the closer the measur-
ing distance. When accuracy is critical,
make sure the target is at least twice as
large as the spot size.
4. Emissivity: Most organic materials,
painted or oxidized surfaces have an
emissivity of 0.95(pre-set in the unit).
Inaccurate readings will result from mea-
suring shiny or polished metal surfaces.
To compensate cover the surface to
be measured with masking tape or at
black paint. Measure the tape or painted
surface when the tape or painted area
reaches the same temperature as the
material underneath.
1 - LCD 2 - Back Light Key
3 - Laser Key 4 - °C/°F Key
5 - Battery Cover 6 - Trigger
7 - Laser 8 - Infrared Lens
9 - Low Battery Icon
10 - Data Hold Icon
11 - Laser Icon
12 - °C/°F Symbol
13 - Temp. Reading
CAUTIONS
QUICK START INSTRUCTIONS
MAINTENANCE
OPERATING INSTRUCTIONS
PARTS IDENTIFICATION
910 11
12
13
1
6
542
3
7
8
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