General Tools IRTC50 User Manual [en, es, fr]
INFRARED THERMAL SCANNER
WITH
LASER STAR BURST
TARGETING SYSTEM
Laser Star Burst
Targeting
IRTC50
USER’S MANUAL
Please read this manual carefully and thoroughly before using this product.
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 5 –8
Front Panel Controls and Indicators . . . . . . . . . . . . . 5
Making Basic Temperature Measurements . . . . . 5 –6
Using Reference Temperatures and Setpoints
A Few Final Pointers On Operating the
IR Thermal Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operational Warnings and Notes . . . . . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . 6 –7
General’s Return For Repair Policy . . . . . . . . . . . . . . . 11
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INTRODUCTION
Thank you for purchasing the IRTC50 InfraRed Thermal Scanner with Laser Star
Burst Targeting System from General Tools & Instruments’. Please read this
manual carefully and thoroughly before using the instrument.
It’s a handheld non-contact Infrared thermometer with 8:1 distance to spot ratio,
above and below tri-color visual and audible set-point alarms, plus a UNIQUE
LASER STAR BURST targeting system. It is used to measure and display surface
temperatures within the range of -40° to 428°F and has an accuracy of 2%.
It incorporates a user selectable 3-temperature band of 1°, 5° and 10°F
(0.5°, 3° and 5.5°C), set-point with tri-color light and sound indication when
the temperature reading goes above or drops below the set-point.
APPLICATIONS
1.
It is ideal for quickly locating hot spots on electrical equipment such as:
a.
Motors
b.
Fans
c.
Breakers
d.
Junction boxes
e.
Wiring
2.
HVAC technicians and home inspectors can quickly locate:
a.
Thermal leaks in forced air heating and AC systems
b.
Poor or missing insulation
c.
Defective hot water radiator grills
3.
In manufacturing, it can be used at assembly lines and burn-in rooms to
quickly identify:
a.
Product failure during production and testing
b.
Incoming QA of temperature sensitive or heat related products
4.
For food processing, to spot check
a.
Assembly line baking process
b.
Verify refrigeration systems by spot checking food samples
In summary the IRTC50, with its fast response time
(0.5 sec) wide temperature range -40° to 428°F a 8:1 DS ratio and tri-color/Audible set-point alarm, Starburst Laser Targeting System is superior to comparable products in its price range. It is powered with a 9V battery and complies
with Class II UK/EU laser safety standard EN60285.
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KEY FEATURES
• Point and shoot non-contact surface temperature measurement
• User selectable 3-temperature band, 1°, 5° and 10°F (0.5°, 3° and 5.5°C)
alarm set-point
• Tri-Color light and fast-slow buzzer sound indication when the target temperature reading goes above or below the set-point
• Fast response time of 0.5 seconds
• Unique STAR BURST laser targeting system helps in approximating the target
spot size
• Large backlit LCD
• Automatic temperature hold when the trigger is released
• Auto-display/back light shut off after 15 seconds of inactivity
• Auto-power off after 60 seconds of inactivity
SAFETY INSTRUCTIONS
WARNING!
• Keep this instrument out of the hands of children.
• This laser may cause discomfort or damage if pointed into eyes.
• Do not stare at the laser beam through binoculars or a magnifying glass!
• Do not operate this instrument in the presence of
flammable/explosive gases!
• Do not operate in environments full of dust or static electricity.
• Do not operate near sources of strong electromagnetic fields, such as arc
welders or induction heaters.
Finally, be aware that it is a federal offence (punishable by a fine of up to
$10,000 and imprisonment) to point a laser beam at aircraft.
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OPERATING INSTRUCTIONS
Familiarize yourself with the nomenclature in the
two images provided before using the IRTC50 IR
Scanner with Laser Star Burst Targeting System.
A.
Laser Star Burst pointer
B.
Infrared sensor
C.
Trigger
D.
Battery compartment
E.
Light panel (glows green/red/blue to indicate
normal/hot/cold readings relative to reference
temperature)
F.
Front panel, including backlit liquid crystal display (LCD) screen
(see accompanying image for details)
G.
Built-in buzzer
Front Panel Controls and Indicators
A.
Reference temperature (for use with setpoints)
B.
Low battery indicator
C.
Selected temperature scale
D.
Scanning mode indicator
E.
Scanned/held temperature
F.
Selected setpoint band indicators
G.
Differential temperature setpoint band
(1°F/0.5°C, 5°F/3°C, 10°F/5.5°C) selectors
H.
Green button has three functions: toggles between
°F and °C, sets reference temperature, turns unit off
Making Basic Temperature Measurements
Point the IRTC50 thermometer at various objects within view, including those
not at ambient temperature (for example, a light bulb or an air-conditioner or
heating register) while pressing and holding the trigger. For the most accurate
reading make sure your target fills the target spot diameter see illustration on
page 8 Fig. 1.
5
Note that in this mode, called SCAN mode, the temperature shown on the front
panel display tracks the surface temperatures (in °F) of the objects scanned,
with fast response time of 0.5 seconds. Also note that when you release the
trigger, the display holds the last scanned temperature.
Note:
To conserve battery life:
• 15 seconds after you release the trigger, the display’s backlight goes off.
• 60 seconds after you release the trigger, the instrument automatically powers off.
Repeat this procedure while looking closely at the display. Note that when you
press and hold the trigger:
• You hear two beeps.
• The display backlight comes on.
• The SCAN and “REF——” icons illuminate.
• A temperature reading is displayed in °F. (To convert the reading to °C,
momentarily press the green “C/F” button below the display).
• To power off, hold the green button for more than two seconds, the instrument
will sound two beeps and power off.
• There is a pointer at the bottom left of the display above the word “OFF”
stenciled on the front panel. This indicates that the set-point is not activated.
Using Reference Temperatures and Setpoints
Once you learn how to make basic temperature measurements, it’s easy to
move on to using the IR Thermal Scanner the way the pros do. In many applications—such as detecting thermal leaks in a house or a batch of undercooked
food—tracking the absolute temperature of a surface is less important (and
more time-consuming) than sensing how hot or cold that surface is, relative to
the surfaces around it.
The IRTC50 supports operation in this advanced “temperature differential”
mode. First, you define the expected, “normal” temperature of a surface as the
reference temperature. Then, you define the maximum deviation from the reference temperature that can be tolerated under specific environmental conditions. This maximum deviation is called the setpoint band. Typically, a narrow
setpoint band (1°F/0.5°C) would be used to monitor temperature in processes
requiring precise quality control (food preparation, for example). A wider band
(10°F/5.5°C) would be used to detect deviations from normal that are more
tolerable (a tiny heat leak through a crack that would be too expensive to
repair, for example).
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To use the IR Thermal Scanner in this mode, you must first set the reference
temperature to the expected, normal temperature.
1.
Squeeze and hold the trigger and point IRT the Infrared Thermometer at an
object which has a temperature you want to use as reference, that temperature is displayed.
2.
Then, without releasing the trigger, press the green “C/F” button below the
display and note that that temperature is now displayed to the right of the
REF icon at the top of the display.
3.
Now release the trigger and note that if you squeeze it again to enter scan
mode, the reference temperature remains constant while the main temperature display changes.
4.
Now that you have set a reference temperature, you must quickly (within
60 seconds) determine a setpoint band for it (or the reference temperature
will default to OFF).
5.
To choose a setpoint band, use the yellow arrow buttons below the display
to move the pointer from the OFF position at left to one of the three possible
positions, labeled 1°F/0.5°C, 5°F/3°C and 10°F/5.5°C.
Consider these the narrow, normal and wide setpoint band settings.) For
your first use of the IRTC50 in this mode, don’t be concerned about which
position to choose. From experience you will learn whether a narrow, normal or wide setpoint band is best for your particular application and needs.
6.
If you have correctly set up the reference temperature and accompanying
setpoint band, there should be a reference temperature reading at the top
right of the display and a pointer above one of the setpoint band readings
(other than OFF) below the display. Now, keep in mind that both settings are
stored for only 60 seconds, squeeze and hold the trigger and scan various
surfaces within view.
7.
As you scan across a surface whose temperature is same as the REF
Temperature, the light panel at the top of the instrument glows green and
no beeping alarm is heard.
8.
When the surface temperature exceeds the REF Temperature by the selected
(setpoint band) temperature differential, the light panel at the top of the IRT
changes from green to red and a fast beep (twice per second) is heard.
9.
When the surface is cooler than the reference (setpoint temperature) differential, minus the setpoint, the color of the light panel switches to blue and
you hear a slow (once per second) beep.
7
A Few Final Pointers on Operating the IR Thermal Scanner:
• Experiment with setpoint bands, for example, note that if you narrow the
band, a temperature reading that had produced a green light now produces
a red or blue light.
• Try scanning at a slow rate, and move closer or farther from the target so it
fills the laser spot. The laser has a distance/spot size ratio of 8:1. Accord ingly, 8 in. is the optimum distance at which to detect a 1 in. dia. target.
• The diameter of the laser spot’s starburst is about half that of the overall spot
diameter. For best results, the target should be about twice the size of the
laser starburst. See illustration below:
Starburst to Target Relationship
Fig.1
Target Size = 2x Starburst
Operational Warnings and Notes
Diameter
When the ambient temperature exceeds the IRTC50’s maximum operating
temperature (104°F/40°C), the instrument will sound a fast (2-Hz) alarm and
the display will show an error message of “ErAH”. When the ambient temperature falls below the unit’s minimum operating temperature (32°F/0°C) the
instrument will sound a slow (1-Hz) alarm and the display will show an error
message of “ErAL”.
When the temperature of the target exceeds the specified maximum
(428°F/220°C), the instrument will sound a fast alarm and the display will show
an error message of ErOH. When the temperature of the target temperature
falls below the specified minimum (-40°F/-40°C), the instrument will sound a
slow alarm and the display will show an error message of “ErOL”.
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SPECIFICATIONS
Temperature measurement range: -40° to 428°F (-40° to 220°C)
Operating temperature range: 32° to 104°F (0° to 40°C)
Operating humidity range (relative): 10 to 90% (non-condensing)
Storage temperature: -40° to 122°F (-20° to 50°C)
(not including battery)
Measurement accuracy: ±2°C or ±2% of reading
(for readings >0°C)
±3°C or ±3% of reading, whichever is greater
(for readings ≤0°C)
Repeatability +/- 1.5°F (1°C)
Response time 0.5 second
Distance/spot size ratio 8:1
Emissivity 0.95 (factory set)
Display resolution 0.1°F (±0.1°C)
Laser pointer wavelength 630-660nm
Power of laser <3mW
Response wavelength 8앑14애m
Laser class Class II
Laser on switch Trigger
Backlight on switch Trigger
Data hold Yes (60 seconds)
Fahrenheit/Celsius unit toggling Yes
High/Low setpoint warning buzzer High 2/sec, Low 1/sec pulses
Low battery indication Yes
Visual Indication Maximum <30mA
current consumption
High/Low Visual Indication High-RED, Low-Blue,
Backlight auto shutoff Inactive for 15 seconds
Auto power off Inactive for 60 seconds
Dimensions 5.31 x 1.65 x 6.81 in.
Weight 6.24 oz. (177g) (w/o battery)
Power Source 1 “9V” battery (included)
Normal-Green
(135 x 42 x 173mm)
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MAINTENANCE TIPS
Clean the lens often—but never use a solvent. Abrupt
temperature changes will cause condensation and possible vapor penetration.
Clean after the vapor evaporates. Blow off loose particles with clean, compressed air. Gently brush remaining debris away with a lens hair brush.
Carefully wipe the surface with a moist cotton swab.
Avoid water, moisture and corrosive gas or liquids. The housing can be cleaned
with a wet sponge.
Remove the battery when storing this product for an extended period of time.
Do not drop or disassemble the instrument or immerse it in water.
WARRANTY INFORMATION
The IRTC50 IRT InfraRed Thermal Scanner with Laser Star Burst Targeting
System from General Tools & Instruments (General
purchaser to be free from defects in material and workmanship for a period of
1 year. Subject to certain restrictions, General will repair or replace this instrument, if after examination, it is determined by General to be defective in material or workmanship.
This warranty does not apply to damages that General determines to be from
an attempted repair by non-authorized personnel or misuse, alterations, normal
wear and tear or accidental damage. The defective unit must be returned
to General Tools & Instruments or a General authorized service center, freight
prepaid and insured.
Acceptance of the exclusive repair and replacement remedies described herein
is a condition of the contract for purchase of this product. In no event shall
General be liable for any incidental, special, consequential or punitive damages,
or any cost, attorneys fees, expenses, losses alleged to be as a consequence of
any damage due to failure of, or defect in any product including, but not limited
to, any claims for loss of profits.
®
) is warranted to the original
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GENERAL’S RETURN
FOR REPAIR POLICY
Every effort has been made to provide you with a reliable, product of superior
quality. However, in the event your instrument requires repair, please contact
our Customer Service to obtain a RGA# (Return Goods Authorization) before
forwarding the unit via prepaid freight to the attention of our Service Center at
this address:
General Tools & Instruments
80 White Street
New York, NY 10013
212-431-6100
Remember to include a copy of your proof of purchase, your return address,
and your phone number and/or e-mail address.
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