User guide

D:S=12:1
6.67@80”
3@36”
2@24”
INF165
Infrared Thermometer
Controls and Indicators
1. Trigger: Initiates measurements.
2. IR Sensor
3. Laser Pointer Beam
4. LCD Display: Temperature
5. LCD Display: Maximum value
6. Battery Compartment
Displays and Indicators
1. ˚C/˚F -button: Select ˚F or ˚C
2. Mode -button Select Emissivity (0.70, 0.95)
Hold trigger and press the Mode button to change
laser visibility
3. Lock -button: Lock and Backlight
4. Polarity Indicator: Appears when measuring
negative temperature
5. Numerical Display: Indicates measured
temperature value
6. Scale Icons: Indicate that either the
Fahrenheit (˚F) or Celsius (˚C) scale is selected
7. MAX: Displays maximum measured value
8. HOLD: Indicates display is in “HOLD” mode
9. Battery Level
Operating Instructions
Taking Measurements
To take a temperature measurement using your INF165,
you simply point the aperture at an object and pull the
trigger. The object’s temperature will show up on the
display and update at a rate of approximately 2 times
per second.
There will be a delay of approximately one-second
between the time you initially pull the trigger and the
time the display comes on. The 60-second auto-hold
initiates at the moment you release the trigger. The
maximum temperature is viewed beside the “ “ icon.
NOTE: This thermometer will automatically shut off if
left idle for more than 15 seconds.
Follow these general guidelines to ensure you get the
most accurate readings possible:
• Besurethemeasuredobjectfillsthe“spot”
seen by the aperture. The distance to spot ratio
for the INF165 is 12:1.
This shows the one-foot spot fitting within the one-foot
target area. At this distance, and anything closer, the
target’s temperature will be accurately measured.
NOTE: If the two-foot diameter spot includes unwanted
objects in the background that are not part of the
one-foot target, the temperature of the background
objects will be figured in with the target’s temperature
and cause errors in your measurements.
• Whencomparingtemperaturesofsimilarobjects
that are far away, take your measurements at the
same distance and angle to the target each time.
•Whenlookingforabnormallyhotorcoldtargetsit
may be acceptable to include background objects
so long as the temperatures in the background
and your methods are consistent.
•Considertheemissivityoftheobjectsyou
are measuring.
•Prepareasurfaceformeasurement.Infrared
thermometers measure only the outer surface of
an object. If emissivity is affecting the
measurement, or you have difficulty putting the
object in the sensors line-of-site, you may need
to prepare a surface that’s easy for the infrared
thermometer to read. A piece of masking tape is a
good target and it will rapidly take on the
temperature of the object it is attached to.
•Beawarethatyoucannotmeasurethe
temperature of air between the Infrared
thermometer and an object. Air vents (registers)
are quick to take on the temperature of outlet air.
However, you must aim directly at the vent if you
are measuring outlet air temperature.
•Keepyourinfraredthermometerawayfrom
  strongelectricalfields.Whenworkingneara
strong electrical field, like that under the hood of
your car, watch for unusual readings or an “over
load” indication. Often, you can move the
thermometer just a few inches to escape the
influence of the interference.
•KeepyourINF165withinitsuseandstorage
temperature range. Excessive heat or cold will
adversely affect the accuracy of your readings.
  Whenthetriggerispulledthetarget’s
temperature will be displayed in a near real-time
mode (less than 1/2 second between
measurements). The temperature will remain
on the display for sixty seconds after the trigger
is released.
Emissivity
Not all surfaces emit infrared energy at the same
level. A shiny surface will emit much less infrared
energy at a given temperature when compared to
a flat black surface. The INF165 has two preset
emissivity levels used to compensate for variances
in your target.
High (0.95) will work for most common surfaces
and is set as default for many infrared
thermometers. Medium (070) is best for oxidized
copper or rusty iron.
1-800-547-5740 • Fax: [phone]
www.ueitest.com • email: [e-mail]
INSTRUCTION MANUAL
Introduction
The INF165 quality IR Thermometer is perfect for
apprentice level applications when cost is important
but performance is critical.
Features include
•WideTemperatureRange-36.4~689˚F˚
•DistancetoSpotratio:12:1
•SelectableEmissivity(0.70,0.95)
•Maxvaluecapture
•Autooff
Safety Notes
Before using this meter, read all safety information
carefully.
In this manual the word “WARNING” is used to indicate
conditions or actions that may pose physical hazards to
the user. The word “CAUTION” is used to indicate con-
ditions or actions that may damage this instrument.
NOTE: The INF165 is not recommended for use on
shiny surfaces such as chrome, mirrors or polished
metals.
WARNING!
To avoid thermal shock, the instrument should be
stored at room temperature between 32˚ to 122˚F
(0˚ to +50˚C).
WARNING!
DO NOT look directly into the laser beam. Permanent
eye damage may result.
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INF165
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Front view
D:S=12:1
6.67@80”
3@36”
2@24”
INF165
Infrared Thermometer