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User Manual
IRTUV50
IR Thermometer with Built‐in UV Refrigerant Leak
Detector and Flashlight
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Introduction
Congratulations on your purchase of the Triplett IRTUV50
IR Thermometer with Built‐in UV Refrigerant Leak Detector and Flashlight
This thermometer makes non‐contact (infrared) temperature measurements
at the touch of a button. The built‐in coaxial laser pointer increases target
accuracy while the backlit LCD and handy multi‐switch combine for
convenient, ergonomic operation. The UV light source is convenient for
locating leaks such as refrigerants
Features
•
Measures non‐contact surface temperature up to 932°F ( 500°C )
•
12:1 Distance to Spot Ratio (Field of View)
•
Precise non-contact measurements
•
Multipoint laser sighting
•
White LED built-in illuminators
•
Blue LED built-in illuminators for UV function
•
Unique flat surface, modern housing design
•
Automatic Data Hold
•
“MAX/MIN/AVG/DIFF” function
•
Emissivity Digitally adjustable from 0.10 to 1.0
•
Adjustable High and Low Alarms
Safety
International Safety Symbols
This symbol, adjacent to another
symbol or
terminal, indicates the user must
refer to the
manual for further information
Warnings
• Do not directly or indirectly point the laser at the eyes
of a person or an animal
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Inspect for damage or for
any shortage of parts or
accessories before use
• Replace the batteries immediately after the
battery indicator flashes o Do not use the
thermometer near explosive gases, steam,
or dust
• Note that an object with high reflectivity will normally cause the measured
temperature value to read much lower than the actual temperature
• Use the device only as described in this User Guide
Cautions
• To avoid thermometer damage, please avoid the following hazards:
EMF from welding
equipment or electro‐
induction heaters o Static
electricity
• Thermal shock caused by large or abrupt environmental temperature
changes; wait 30 minutes to allow the thermometer to stabilize to new
environmental conditions
• Do not use this device in excessively high temperature environments
Meter Description
METER DESCRIPTION
1. LCD Display
2. MENU/MODE Button
3. Laser
4. UV LEDs
5. IR Sensor
6. Power On/Measure Trigger
7. Battery Compartment
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DISPLAY LCD DESCRIPTION
1. Scan Icon
2. DATA HOLD
3. Laser ON Indicator
4. UV LED ON Indicator
5. HI and Low Alarm
6. Measurement Data
7. Work Light LED ON
8. °C/°F Icon
9. MAX/MIN/AVG/DIF Mode Indicator
10. Emissivity
11. APO (Auto Power OFF) ON
12. Battery Status
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Operation
Meter Power
The meter is powered by two 1.5V AA batteries. With fresh batteries
installed, the meter switches ON when the trigger is pulled. Refer to the
Maintenance section for Battery Installation instructions. The battery
icon provides battery status indication. Replace the batteries as soon as
the battery status icon indicates a low battery.
Setting Mode
The various parameters of the meter are set using the five‐way multi‐
switch located below the display. The available parameters are listed
below:
Setting Mode Overview
The Settings switch has five positions to
select a parameter, turn a parameter ON or
OFF, and to adjust parameter values.
Press and release the Measurement Trigger.
Press the button left to enter the Setting Mode. The
parameter selected will appear in the display.
Press the button right to advance to the next parameter.
Press the up or down buttons to change a parameter
status or adjust a parameter value.
Press the button to store parameter changes and advance to the
next parameter.
Press the button left to exit the Settings mode and return to
Measurement mode.
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Note: If no button is pressed within the APO time the meter will shut
down. It may be helpful to extend the APO time when making
adjustments in the Settings mode.
Setting Mode Detail
1. Flashlight Setting
Enter the Setting mode. The
Flashlight icon flashes. Press up
for ON or OFF. Press to store the
setting
2. UV light Setting
Enter the Setting mode. Advance until
the UV icon flashes. Press up for
ON or OFF. Press to store the
setting
3. Temperature Units Setting
Enter the Setting mode. Advance until the
°F or °C icon flashes. Press up to
change the units. Press to store the
setting
4. Emissivity Setting
Enter the Setting mode. Advance until the EMS icon flashes.
Press up or down to adjust the setting. Press to store the
setting
5. Laser Pointer Setting
Enter the Setting mode. Advance until the
icon flashes. Press up for ON or
OFF. Press to store the setting
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6. Max Min Avg Max‐Min Setting
Enter the Setting mode. Advance until the MAX –
MIN AVG icon flashes. Press up for ON or OFF.
Press to store the setting
7. Alarm HI Setting
Enter the Setting mode. Advance until the
Alarm HI icon flashes. Press up or down
for ON or OFF. Press to store the setting If
ON was selected, press up or down to
adjust the limit. Press to store the setting
8. Alarm LO Setting
Enter the Setting mode. Advance until the
Alarm LO icon flashes. Press up or down
for ON or OFF. Press to store the setting If
ON was selected, Press up or down to
adjust the limit. Press to store the setting
9. Backlight Setting
Enter the Setting mode. Advance until the LItE icon flashes.
Press up or down for ON or OFF. Press to store the setting
10. Auto Power OFF Setting
Enter the Setting mode. Advance until the APO icon flashes.
Press up or down to adjust the setting. Press to store the
setting
Surface Temperature Measurements
1. Typical setting should be: Laser pointer ON, Backlight ON,
Temperature units set as needed, Emissivity set to 0.95, APO (auto
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power OFF) set to 10 seconds and Flashlight ON if measuring in a
dimly lit area.
2. Open the lens protective lens cover by rotating the
cover wheel clockwise
(facing the lens) until the dot
is visible on the wheel.
3. Hold the meter by its Handle Grip and point it toward
the surface to be measured.
4. Pull and hold the Trigger to
turn the meter on and begin
testing in Scan mode. The
display will light if the
batteries are good. Replace
the batteries if the display
does not light.
5. Release the Trigger; the reading will HOLD for the time
set in the APO setting. The backlight will turn off after
approximately 4 seconds.
6. The meter defaults to the programmed conditions in use when the
meter was last switched OFF.
Laser Pointer
The laser pointer circle identifies the area being measured. The size of the
area is determined by the distance to spot ratio. Objects outside the circle
are not measured. The spot measured should always be larger than the
circle for accurate measurements.
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MAX, MIN, AVERAGE and MAX‐MIN
In the MAX MIN AVG mode the meter will record the Maximum value
scanned, Minimum value scanned, the Average of the scanned values
and the Difference between the Max and Min value.
1. Turn Max Min ON in the settings mode
2. Press and hold the trigger to scan an area. Max,
Min, Avg or Max‐Min will be displayed in the
lower right display. Press the up button to
select the parameter to be displayed. The
values will be continuously updated for the
length of the scan.
UV Leak Detector
Inject a small amount of florescent dye into the system under test.
The dye/system mixture (refrigerant, for example) will escape and
accumulate at all leak sites. Turn the blue UV LEDs on in the Setting
mode and scan the system. The residue of the dye at the leak can be
easily observed under the UV light. Dyes are available at most HVAC
supply outlets.
Locating Hot or Cold Spots
To detect a hot or cold spot, aim the
thermometer at a region beyond the target
and then scan the entire region in a slow,
up/down motion.
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Distance to Spot Ratio (Field of View)
The meter’s field of view is 12:1 (distance to spot ratio). For example, if
the meter is 60cm (24 inches) from the target (spot), the diameter of the
target must be at least 5cm (2 inches).
Note that measurements should normally be made further than 60cm
(24 inches) from the target. The meter can measure from further
distances but the measurement may be affected by external sources of
light. In addition, the spot size may be so large that it encompasses
surface areas not intended to be measured
Emissivity
Emissivity represents the energy reflectivity of a material. Most organic
materials and painted or oxidized surfaces have an emissivity of
approximately 0.95. If possible, masking tape or flat black paint should
be applied to cover the measured surface.
Wait a period of time to allow the tape or paint to reach thermal
equilibrium with the surface of the covered object. Measure the
temperature of the surface covered with tape or paint only after
equilibrium has been achieved.
High Low Limits
The HI / LO limits provide an alarm when a preset temperature is
exceeded.
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Specifications
Infrared Thermometer Specifications
Range / Resolution
‐30~500oC (‐22~932oF)
Accuracy
Accuracy：±3°C (5.4°F) at -50 to 20°C (-58 to
68°F)
±2.0% or ±2°C (3.6°F) at 20 to 500°C (68 to
932°F)
Response Time
500ms (95% of reading)
Repeatability (% of
reading)
±8% of reading or ±1.0°C (1.8°F) whichever is
greater
Emissivity
Adjustable from 0.10 to 1.00
Temp. Coefficient
0.1°C/°C or ±0.1%/°C of reading (whichever is
greater)
Field of View
D/S = Approx. 12:1 ratio (D = distance, S =
spot)
Laser power
Less than
1mW Spectral response
8 to 14
microns
General Specifications
Display
Backlit LCD display with function
indicators
Display resolution
0.1°C (0.1°F)
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Flashlight
5 white LEDs
UV light
5 blue LEDs
Operating Temperature
0°C to 50°C (32°F to 122°F)
Operating Humidity
10 to 90% RH non condensing @ 30°C
(86°F)
Storage Temperature
-10 to 60°C (14 to 140°F)
Operating Altitude
2000m (7000 ft.) above sea level
Storage Altitude
12,000m (40,000 ft.) above sea level
Drop Proof
1.2m (4 ft.)
Power Supply
2 x1.5V AA IEC LR06 batteries
Automatic Power Off
Adjustable 1 to 60 seconds
Weight
318g (11.2 oz.)
Dimensions
7.3 x 4.3 x 2.2" (186 x 110 x 57mm)
Vibration and Shock
IEC 60068‐2‐6 2,5g, 10Hz to 200Hz
IEC 60068‐2‐27 50g, 11ms
EMC
EN61326‐1:2006 EN61326‐2:2006
Compliance
EN/IEC 61010‐1
Warranty
Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for
use. Triplett warrants to the original purchaser for use that the products sold by it will be free from
defects in workmanship and material for a period of (1) one year from the date of purchase. This
warranty does not apply to any of our products which have been repaired or altered by unauthorized
persons in any way or purchased from unauthorized distributors 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 are not covered by this warranty
Copyright © 2022 Triplett
www.triplett.com
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