INSTRUCTION MANUAL
D:S=12:1
6.67@80”
3@36”
2@24”
INF195C
Infrared Thermometer
Controls and Indicators
• 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.
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• Consider the emissivity of the objects you
are measuring.
INF195C
INF195C
Infrared Thermometer
4
7
5
D:S=12:1
6.67@80”
3@36”
2@24”
• 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
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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.
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• Be aware that you cannot measure the
temperature of air between the Infrared
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1. Trigger: Initiates measurements.
2. IR Sensor
3. Laser Pointer Beam
4. LCD Display: Temperature
5. LCD Display: Secondary (MIN, MAX, AVG, DIF,
Alarm, Emissivity, Probe)
6. Battery Compartment
7. Thermocouple Socket
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.
Introduction
The INF195C is perfect for frequent use in advanced or
specialty application environments, where wide temperature ranges and superior optics are essential for
use on targets at greater distances. This full-featured
IR Thermometer is the most comprehensive and
best-valued Infrared Thermometer on the market.
The INF195C’s increased features offer advanced trend
analysis for professionals that require a greater quality
of infrared optics, extended measurement and the versatility of a K-Type surface or contact probe and three
level emissivity to simplify operation.
Features include:
• –76°~ 1022°F (-60˚~ 550˚C)
• Circular laser targeting
• 12:1 Distance to Spot Ratio
• MIN/MAX/Differential, Average
• 3 emissivity levels: (0.30, 0.70, 0.95)
• Hi/low Alarm (User adjustable)
• K-Type thermocouple input
• Carrying Case
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
conditions or actions that may damage this instrument.
NOTE: The INF195C is not recommended for use on
shiny surfaces such as chrome, mirrors or
polished metals.
Displays and Indicators
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9
4
6
3
1. Mode -button
2. Lock and Backlight
( ) Push-button
3. ˚F/˚C and Laser
( ) Push-button
4. Polarity
5. Main Display
6. Secondary Display
7 F˚ / C˚ Indicator
8. HOLD
9. Battery Life
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5
1
2
Operating Instructions
Taking Measurements
To take a temperature measurement using your INF195C,
you simply point the aperture at an object (with or without
using the laser sighting) 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.
NOTE: This thermometer will automatically shut off if left
idle for more than 60 seconds, unless in PRB mode. When in
PRB mode, instrument will shut off if left idle for more than
12 minutes.
• Keep your INF195C 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 seven 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 INF195C has three 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. Use Low (0.30) for surfaces
that emit less energy such as aluminum or brass.
Mode and Functions
Press the “MODE” push-button will scroll through the
following options:
: Emissivity data. (The default emissivity
is 0.95)
: Press the “MODE” push-button, then press
“ “ or “ “ push-buttons to set the
emissivity, then press the “MODE” push button again to confirm it. The emissivity
can be changed between 0.30, 0.70 and
0.95.
: Press the “MODE” push-button for the
maximum (MAX), minimum (MIN), differential
Follow these general guidelines to ensure you get the most
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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accurate readings possible:
• Be sure the measured object fills the “spot” seen by
the laser targeting. The distance to spot ratio for the
INF195C is 12:1.
This shows the one-foot spot fitting within the one-foot tar-
get 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 square target: the temperature of the
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background objects will be figured in with the target’s tem-
perature and throw off your measurement.
between MAX and MIN (DIF) and average
(AVG) modes. During the measurement,
the special modes reading will be displayed
at the bottom of the display near the
mode icon.
: Press the “ “ or “ “ push-buttons to
change the “High Alarm” (HAL) or
“Lo Alarm” (LAL), then press the trigger to
confirm it. For example: when the reading
81˚F < LAL 81.1˚F, the low “Lo Alarm” icon
will flash and you will hear a beep sound.
: Connect the thermocouple to the
thermocouple socket and apply the probes
to the target being measured. The
thermometer will display the temperature
INF195C
Infrared Thermometer
D:S=12:1
2@24”
3@36”
6.67@80”
automatically without pressing any buttons.
To see the minimum or maximum data
during the probe measurement, please hold
down the “ “ or “ “ push-buttons.
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WARNING!
After measurement of high temperature, the probe
may be hot for a while.
Additional Features
Perform this first Verify that the meter Press to activate the following
is in one of these modes
Press and release In MIN, MAX, DIF, LOCK - Press the “ “ push-button for LOCK
the trigger to activate AVG mode mode ON/OFF - This locks the IR measurement
display first for up to 60 minutes
SCALE - Press “ “ push-button to select ˚C or ˚F
Press and hold In all modes except PRB BACKLIGHT/WORKLIGHT - Press the “ “
the trigger to use (Probe) push-button for backlight function ON/OFF
these functions LASER - Press the “ “ push-button for laser
function ON/OFF
Changing Scales
To change scales between degrees Fahrenheit
and degrees Celsius, press the button on the panel,
(marked °F / °C), 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 INF195C will default to
the scale last used the next time it is turned on.
Using the Laser Sight
The INF195C is classified as a “Laser Product”, and is
regulated by the FDA.
CAUTION!
Using controls, making adjustments, or performing
procedures in any manner other than that specified
herein may result in hazardous radiation exposure.
LCD Error Messages
The thermometer incorporates visual diagnostic
messages as follows:
: “Hi” or “Lo” is displayed when the
temperature being measured is
outside the settings of HAL and LAL.
: “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.
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.
INF195C
Infrared Thermometer
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. Improper repair or service
could result in physical degradation of the instrument.
This could alter the protection from electrical shock and
personal injury this instrument provides to the operator.
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 struc-
tural components.
Battery Replacement
Always use a fresh replacement battery of the specified
size and type. Immediately remove the old or weak bat-
tery 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 INF195C.
2. Replace with fresh “AAA” (2x) batteries.
3. Replace cover.
INF195C
Infrared Thermometer
D:S=12:1
Lens Care
The sensor lens is the most delicate part of the ther-
mometer. 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 thermom-
eter. Do not submerge any part of the thermometer in
liquids.
3@36”
2@24”
“AAA” (x2)
6.67@80”
Specifications
INF195C
Item Non-contact Thermocouple Probe
Infrared Scan Scan
Measurement range -76˚ to 1022˚F -83.2˚ to +1999˚F
(-60˚ to +550˚C) (-64˚ to ≠1400˚C)
Operating range 32˚ to 122˚F (0˚ to +50˚C)
Accuracy ±2% RDG or 2˚C (4˚F) ±1% of reading or 1.8˚F
(Tobj= 0~550˚C) whichever is greater (1.0˚C) whichever is
greater (Test under
(Tobj= -60 ~ 0˚C) ((±2˚C (4˚F) Tamb=73±6˚F)
+ 0.05˚/per degree)
Resolution 0.1˚F / 0.1˚C
(-83.2-999.9˚F)
Response time (90%) 1 second
Distance: Spot 12 : 1
Battery life Standard “AAA” (x2), 14 hours continuous
Dimensions 6.9” x 1.5” x 2.8” (175.2 x 39.0 x 71.9mm)
Weight 6.7 oz
NOTE: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maxi-
mum error is 18˚F (10˚C).
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
instrument specifications. At a ratio of 9:1, a distance
from your target of nine 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
better, 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.
To determine the emissivity of the surface being tested,
paint a portion with flat black paint, and then measure
the temperature of the painted area and compare it
to the temperature of the standard surface. Use the
following to determine the emissivity to use.
Temperature (Standard area) divided by temperature
(painted area). As an example 61° in the standard area
and 68° painted is 61/68 or 0.89
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
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manual for additional details.
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