User Guide

Changing Scales
To change scales between degrees Fahrenheit and
degrees Celsius, press the mode button on the panel,
while the display is active. Even if the trigger is
released and the display is in its 60-second automatic
hold, you can convert the reading between scales.
Each time you press the scale button, the 60-second
hold will reset. The INF165C will default to the scale last
used the next time it is turned on.
Using the Laser Sight & Backlight
The INF165C is classified as a “Laser Product”, and is
regulated by the FDA. The laser and backlight are
always on when the trigger is pulled.
CAUTION!
Using controls, making adjustments, or performing
procedures in any manner other than that specified
herein may result in hazardous laser radiation exposure.
LCD Error Messages
The thermometer incorporates visual diagnostic
messages as follows:
: “Er2” is displayed when the
thermometer is exposed to rapid
changes in the ambient temperature.
: “Er3” is displayed when the ambient
temperature exceeds the operation
range of 32˚ to 122˚F (0˚ to 50˚C). The
thermometer should be allowed
plenty of time (minimum 30 minutes)
to stabilize to the working/room
temperature.
: For all other error messages it is
necessary to reset the thermometer.
: ‘Hi’ or ’Lo’ is displayed when the
temperature being measured is
outside of the measurement range.
To reset the thermometer, turn the instrument off, remove
the battery and wait for a minimum of one minute. Reinsert
the battery and turn it on. If the error message remains
please contact UEi service department for
further assistance.
Battery Indicators
The thermometer incorporates visual low battery
indications.
: “Battery OK” measurements
are possible
: “Battery Low” battery needs to be
replaced, measurements are
still possible
: “Battery Exhausted” measurements
are not possible
Maintenance
Periodic Service
WARNING!
Repair and service of this instrument is to be performed by
qualified personnel only.
Cleaning
Periodically clean your instrument’s case using a damp cloth.
DO NOT use abrasive, flammable liquids, cleaning solvents,
or strong detergents as they may damage the finish, impair
safety, or affect the reliability of the structural components.
Battery Replacement
Always use a fresh replacement battery of the specified size
and type. Immediately remove the old or weak battery from
the meter and dispose of it in accordance with your local
disposal regulations. Old or defective batteries can leak
chemicals that corrode electronic circuits.
To replace the battery:
1. Slide the battery cover straight down then away from
the INF165C.
2. Replace with fresh AAA batteries.
3. Replace cover.
Lens Care
The sensor lens is the most delicate part of the thermom-
eter. The lens should be kept clean at all times. Care should
be taken when cleaning the lens using only a soft cloth or
cotton swab with water or medical alcohol. Allowing the
lens to fully dry before using the thermometer. Do not sub-
merge any part of the thermometer in liquids.
WARNING!
Under NO circumstance should you expose batteries to
extreme heat or fire as they may explode and cause injury.
NOTE: This instrument contains no user serviceable parts. If
service becomes necessary, call UEi and ask for the service
department. See the warranty section of this manual for
additional details.
Specifications
INF165C
Infrared Thermometer
Limited Warranty
The INF165C is warranted to be free from defects in materials and
workmanship for a period of one year from the date of purchase.
If within the warranty period your instrument should become
inoperative from such defects, the unit will be repaired or replaced
at UEi’s option. This warranty covers normal use and does not cover
damage which occurs in shipment or failure which results from
alteration, tampering, accident, misuse, abuse, neglect or improper
maintenance. Batteries and consequential damage resulting from
failed batteries are not covered by warranty.
Any implied warranties, including but not limited to implied warranties
of merchantability and fitness for a particular purpose, are limited to
the express warranty. UEi shall not be liable for loss of use of the
instrument or other incidental or consequential damages, expenses, or
economic loss, or for any claim or claims for such damage, expenses or
economic loss. A purchase receipt or other proof of original purchase
date will be required before warranty repairs will be rendered.
Instruments out of warranty will be repaired (when repairable) for a
service charge.
1-800-547-5740 • FAX: [phone]
www.ueitest.com • Email: [e-mail]
This warranty gives you specific legal rights. You may
also have other rights which vary from state to state.
EMC/RFI
Readings may be affected if the unit is operated within
radio frequency electromagnetic field strength of
approximately 3 volts per meter, but the performance
of the instrument will not be permanently affected.
IR Thermometers
Infrared Thermometers measure the amount of thermal
radiation emitted from an objects surface. To take a
measurement, the object must be within the field of
view of the infrared thermometer, or the reading may
include objects surrounding your target. This target size
is determined in the distance to spot ratio stated on the
instruments specifications. At a ratio of 10:1, a distance
from your target of ten feet will give you a circle with
one foot diameter. At 20:1 ratio gives the same one foot
target now at 20 feet, so you can see that higher is bet-
ter, but typically more expensive due to the cost of the
optics involved.
The other common question is regarding emissivity. In
simple terms emissivity is a percentage of energy
emitted from a surface compared to the energy emitted
from a black body source. If a surface emits one half
(1/2 or 0.5) the amount of energy at a given temperature
and wavelength as a black body, it is said to have an
emissivity of 0.5.
Surfaces closest to the black body level would be flat
black, and those farthest from it would be mirror or
chrome surfaces. With a set emissivity level some
surfaces may measure lower than actual, because their
surface is emitting less thermal radiation at a given
temperature. Although you may have a fixed emissivity
of 0.95, most items measured will provide a reasonably
accurate result. Having a fully adjustable emissivity will
give you the ability to fine tune your instrument to a
specific application.
17300 08/15 Copyright © 2015 UEi
PLEASE
RECYCLE
CLASS
llla LASER PRODUCT
LASER RADIATION WHEN OPEN
COMPLIES WITH FDA 21 CFR
SUBCHAPTER J
LASER RADIATION - AVOID
DIRECT EYE EXPOSURE
LASER RADIATION - AVOID
DIRECT EYE EXPOSURE
“AAA” (x2)
Measurement range -76 ~ 1022˚F (-60 ~ 550˚C)
Operating range 32˚ ~ 122˚F (0 ~ 50˚C)
Accuracy (Tobj= 15~35˚C,
Tamb=25˚C)
±2.7% (1.5˚C)
Accuracy (Tamb=23
± 3˚C)
Tobj=0~550˚C: ±2% of reading or
2˚C(4˚F) whichever is greater
Tobj=-60~0˚C: ±(2˚C+0.05/
degree C)
Emissivity Fixed 0.95
Resolution 0.1˚F/0.1˚C at -76 to 999.9 (˚F/ ˚C),
otherwise 1˚F/1˚C
Response Time (90%) 1 second
Distance: Spot 12:1
Battery life Typ. 14 hours 18 minutes
continuous use
Dimensions 6.12” X 1.57” X 4.45”
(155.5 X 40 X 113mm)
Weight 6.1 oz (173g) including
batteries (AAA x 2pcs)
The thermometer will automatically shut off if left idle for
more than 15 second.