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ProTemp 12
Non-Contact Infrared Thermometer
Instruction Manual
Introduction
The Triplett ProTemp 12 (PT12) is a compact, rugged, easy to use non-contact thermometer. It uses
state of the art infrared measurement technology
to provide a convenient method of measuring from
a distance, temperatures of hot, hazardous, or
hard-to-reach objects or surfaces. With a quick
press of the trigger, a built-in laser identifies the
measurement area, and the backlit LCD display
shows the temperature of the target. You will find
the PT12 so convenient and easy to use that you
will find numerous uses for this innovative thermometer.
How It Works
Infrared thermometers measure the surface temperature of an object. The unit’s optics sense
emitted, reflected, and transmitted energy, which
is collected and focused onto a detector. The unit’s
electronics translate the information into a temperature reading which is displayed on the unit.
The built in laser aids in pointing the thermometer
by identifying the center of the measurement area.
How to Operate the ProTemp 12
Open the battery cover and install a new 9 volt
alkaline battery in the unit.
ProTemp 12 Control Buttons
1) LASER
2) C / F
3) Backlight Symbol
These buttons allow the user to select C or F measurement, and turn the Laser and Backlight on and
off. The PT12 remembers the settings, so the next
time the unit is operated, it will use the settings
programmed by the previous user.
Pull and hold the ‘trigger’ while observing the LCD
display. The PT12 will perform a self test and readout the software version (U3.0). If the PT12 was
recently used, it may not readout the software
version. Note the behavior of the unit, and if desired, use the buttons to change the settings. Symbols in the LCD display indicate what settings are
selected.
A) DATA HOLD icon
B) SCAN Icon
C) LASER ON Icon
D) BACKLIGHT ON Icon
E) BATTERY Icon
F) Temperature Units
G) Measured Temperature
How to Accurately
Measure Temperatures
1) Temperature Averaging:
The PT12 measures the temperature of an area,
not a small spot. The laser is used to aim the PT12.
The spot produced by the laser is much smaller
than the area that the PT12 is measuring. The PT12
cannot accurately measure the temperature of
something less than 1" in diameter. When the PT12
is used to measure something that is too small,
the reading obtained is an average of the temperature of the small object and the surrounding surfaces. To measure small objects, get as close as
possible to the object to minimize the error.
2) Distance and Spot Size
As the distance between the PT12 and the measured object or surface increases, the area that
the PT12 measures increases also. For the PT12,
the Distance to Spot Size Ratio is approximately
12:1. This means that the Spot Size is approximately 1/12th of the distance between the PT12
and the measured object or surface. So at 36
inches, the spot is about 3 inches in diameter. At
12 feet, the spot is about 1 foot in diameter.
3) Field of View
To get the most accurate measurement, the object or surface being measured should completely
fill the Spot Size of the PT12. Consider the Distance to Spot Size Ratio, and position the PT12
accordingly.
Warning
Never point the laser directly into anyone’s eyes,
or at reflective surfaces that may reflect into
someone’s eyes.
While the trigger is held in, the PT12 is in the ‘live
scan’ mode and will display the temperature of
objects as the PT12 is pointed at them. The SCAN
icon in the LCD display indicates that the PT12 is
in the Scan mode. If the laser is activated, it identifies the center of the area that the PT12 is measuring. The diameter of the measurement area
changes with the distance from the PT12. For details, see the section on Distance and Spot Size.
When the trigger is released, the PT12 will hold
the last temperature reading for about 20 seconds.
The DATA HOLD icon on the LCD display will light.
If the Backlight is activated, it will stay on for about
7 seconds and then go off.
If the battery is OK, the BATTERY icon will light. If
the icon does not light, replace the battery.
4) Emissivity
The PT12 is calibrated for an Emissivity of 0.95.
Most organic materials and painted or oxidized
surfaces have an emissivity of 0.95. Inaccurate
readings will result from measuring shiny or polished metal surfaces. To compensate, cover the
surface to be measured with masking tape or flat
black paint. Allow time for the tape to reach the
same temperature as the material underneath it.
Measure the temperature of the tape or painted
surface.
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5) Finding a Hot or Cold Spot
Holding the trigger of the PT12, slowly move the
laser back and forth across the object or surface
of interest while observing the temperature reading on the LCD display. The hot or cold spot is
identified by producing a maximum or minimum
reading on the display.
6) Maintenance
Lens Cleaning: Blow off loose particles using clean
compressed air. Gently brush remaining debris
away with a camel’s hair brush. Carefully wipe
the surface with a moist cotton swab. The swab
may be moistened with water.
Specifications
Temperature Range: -26F to 572F (-32C to 300C)
Accuracy: -26F to 32F (-32C to 0C) +/- 5F
32F to 77F (0C to 25C) +/- 3F
77F to 572F (25C to 300C) +/- 4F or 2% (whichever is greater)
Distance to Spot Size Ratio: 12:1
Repeatability: 1% of reading or 2F (whichever is greater)
Response Time: 500mS for 95% response
Spectral Response: 8-14um
Emissivity: 0.95 (fixed)
Ambient Operating Range: 32F to104F (0C to 40C)
Relative Humidity: 0 to 95% RH non-condensing up to 86F (30C)
Storage Temperature: -4F to 140F (-20 to 60C) without battery
Battery: 1 - 9 Volt Alkaline battery
Battery Life: 12 hours with laser operating
Dimensions: 5 3/4" x 4" x 1 1/2" (146mm x 102mm x 38mm)
Weight (including battery): 0.39 lbs (0.18 kg)
NOTE: DO NOT use solvents to clean the plastic
lens.
Case Cleaning: Use soap and water on a damp
sponge or soft cloth.
NOTE: DO NOT submerge the unit in water.
Applications for the ProTemp 12
1. Industrial/Electrical
Check for hot spots in electrical panels and
circuit breakers, generators and gearboxes.
2. Heating and Air Conditioning
Check and monitor supply and return registers,
air stratification and duct leakage
3. Automotive
Check cylinder heads, heating & cooling
systems, and scan radiators for blockage
4. Food Safety
Monitor temperatures during receiving, storage and
preparation
Use the ProTemp 12 to instantly
measure the temperature of:
• Heating and Air Conditioning
• Hot and Cold food products
• Ballasts in Electric Lights
• Electrical Connections
• Windows and Doors
• Cooking Surfaces
• Hot Engine Parts
• Swimming Pools
• Hot Water Pipes
• Electric Motors
• Motor Bearings
• Wine Coolers
• Transformers
• Fuse Panels
• Hot Asphalt
• Fish Tanks
• Insulation
• Hot Tubs
• Ovens
Triplett One Year Limited Warranty
Triplett / Jewell Instruments warrants instruments and test
equipment manufactured by it to be free from defective
material or workmanship and agrees to repair or replace
such products which, under normal use and service,
disclose the defect to be the fault of our manufacturing,
with no charge within one year of the date of original
purchase for parts and labor. If we are unable to repair or
replace the product, we will make a refund of the purchase
price. Consult the Instruction Manual for instructions
regarding the proper use and servicing of instruments and
test equipment. Our obligation under this warranty is limited
to repairing, replacing, or making refund on any instrument
or test equipment which proves to be defective within three
years from the date of original purchase.
This warranty does not apply to any of our products which
have been repaired or altered by unauthorized persons in
any way so as, in our sole judgment, to injure their stability
or reliability, or which have been subject to misuse, abuse,
misapplication, negligence, accident or which have had the
serial numbers altered, defaced, or removed. Accessories,
including batteries and fuses, not of our manufacture used
with this product are not covered by this warranty.
To register a claim under the provisions of this warranty,
contact Triplett / Jewell Instruments Customer Service
Department for a Return Authorization Number (RMA) and
return instructions. No returned product will be accepted
without an RMA number. Upon our inspection of the
product, we will advise you as to the disposition of your
claim.
ALL WARRANTIES IMPLIED BY LAW ARE HEREBY
LIMITED TO A PERIOD OF ONE YEAR FROM DATE OF
PURCHASE, AND THE PROVISIONS OF THE
WARRANTY ARE EXPRESSLY IN LIEU OF ANY OTHER
WARRANTIES EXPRESSED OR IMPLIED.
The purchaser agrees to assume all liability for any
damages and bodily injury which may result from the use
or misuse of the product by the purchaser, his employees,
or others, and the remedies provided for in this warranty
are expressly in lieu of any other liability Triplett / Jewell
Instruments may have, including incidental or consequential
damages.
Some states (USA ONLY) do not allow the exclusion or
limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you. No
representative of Triplett / Jewell Instruments or any other
person is authorized to extend the liability of Triplett / Jewell
Instruments in connection with the sale of its products
beyond the terms hereof.
Triplett / Jewell Instruments reserves the right to discontinue
models at any time, or change specifications, price or
design, without notice and without incurring any obligation.
This warranty gives you specific legal rights, and you
may have other rights which vary from state to state.
TRIPLETT PRODUCT RETURN INSTRUCTIONS
In the unlikely event that you must return your ProTemp 12
for repair,the following steps must be taken.
1) Call 1-800-TRIPLETT to obtain a Return Material Authorization
(RMA) number from Customer Service.
2) Enclose a copy of the original sales receipt showing date of purchase.
3) Print the RMA number on the outside of the shipping container.
4) Return to: Triplett / Jewell Instruments
850 Perimeter Road
Manchester, NH 03103
ATTN: Repair Dept.
Be sure to include a full description of the
problem, and a telephone number, street
address, or email address, where you can be
contacted, and a return address where the
meter can be shipped to upon repair.
Triplett Model ProTemp 12
Cat. No.: PT12
Made in China
© Triplett Corporation All Rights Reserved
84-880 9/09
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