General IRT105 Bedienungsanleitung
6:1 POCKET INFRARED
THER O ETER
USER’S MANUAL
IRT105
Please read this manual carefully and thoroughly before using this product.
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . 4
What’s in the Blister Pack . . . . . . . . . . . . . . . . 5
Product Overview . . . . . . . . . . . . . . . . . . . . 5 –6
Setup Instructions . . . . . . . . . . . . . . . . . . . 6 –7
Install Two Batteries . . . . . . . . . . . . . . . . 6 –7
Operating Instructions . . . . . . . . . . . . . . . 7 – 16
aking Basic easurements . . . . . . . . . 7 –8
Advanced easurement odes
and Functions . . . . . . . . . . . . . . . . . . . . 8 – 11
Accounting for Emissivity . . . . . . . . . .11 – 13
aking Accurate easurements . . . . 14 – 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 17
Warranty Information . . . . . . . . . . . . . . . . . . . 18
Return for Repair Policy . . . . . . . . . . . . . . . . 19
Spanish Translation . . . . . . . . . . . . . . . . 20 – 39
French Translation . . . . . . . . . . . . . . . . . 40 – 59
2
INTRODUCTION
Thank you for purchasing General Tools & Instruments’
IRT105 6:1 Pocket Infrared Thermometer. Please read this
user’s manual carefully and thoroughly before using the
instrument.
The IRT105 is a small and lightweight non-contact
thermometer that measures the surface temperature of an
object from a distance by using an IR sensor to measure its
thermal radiation. A laser pointer defines the target area
(spot) whose temperature is being measured.
The thermometer has a wide measurement range of -22° to
482°F (-30° to 250° ) and a distance-to-spot ratio of 6:1.
These two specifications—as well as its adjustable emissivity
and its high basic measurement accuracy (±3°F above 32°F)
—make the IRT105 ideally suited for applications in food
processing, electrical troubleshooting, and automotive and
HVA equipment maintenance. In applications such as these,
an infrared thermometer is the only instrument capable of
taking the temperature of a surface that may be impossible to
reach or too hot or cold to touch.
The IRT105 comes in a blister pack with two non-
rechargeable R2032 Lithium-ion batteries to power its
thermometer and laser pointer.
3
KEY FEATURES
• Optimized measurement range
• Basic accuracy of ±3°F
• Adjustable emissivity
• Fast response time
• Min and Max measurement modes + Measurement
Lock mode
• Selectable °F or ° unit
• Large L D
• Separate batteries for thermometer and laser
• Auto power off
• Small and light and easy to use
SAFETY INSTRUCTIONS
CAUTION!
The IRT105’s targeting laser is a lass II type that emits less
than 1mW of power between 630nm and 660nm. Avoid direct
eye contact with laser light radiation. U.S. law prohibits
pointing a laser beam at aircraft; doing so is punishable by a
fine of up to $10,000 and imprisonment.
4
WHAT’S IN THE BLISTER PACK
The IRT105 comes in a plastic blister pack with two R2032
batteries, a wrist strap and this user’s manual.
PRODUCT OVERVIEW
Figure 1 shows the locations of the controls, indicators and
physical features of the IRT105.
Fig. 1. The IRT105’s controls, indicators
and physical features
A. Meas. (measure) button
B. Mode button
. Wrist strap attachment bar
D. Laser pointer
E. IR sensor window
F. Liquid-crystal display
G. Thermometer battery compartment
H. Laser battery compartment
5
Figure 2 shows the icons and text that may appear on the
display. Familiarize yourself with the locations of these
controls and the meanings of these icons before moving on to
the setup and operating instructions.
Fig. 2.
All possible display
indicators and
their meanings
A. Low Battery icon
B. Laser Enabled icon
. Displaying highest measurement
D. Displaying lowest measurement
E. Operating in emissivity selection mode
F. Operating in measurement lock mode
G. elsius unit selected
H. Fahrenheit unit selected
I. Measured value
SETUP INSTRUCTIONS
INSTALL TWO BATTERIES
Two R2032 batteries (included) must be installed in separate
compartments in the back of the IRT105 (callouts G and H of
Fig. 1) to activate its thermometer and laser pointer. To open
either compartment, place the tips of your thumb and index
finger against the bumps on the round compartment cover
and turn clockwise. Insert each battery so the writing
6
stenciled on it faces you. Then replace both covers and
secure them by turning them counterclockwise.
When replacing a battery, you may need to slide the tip of a
pin under it to dislodge it. Each compartment is equipped with
a pin slot (at the four o’clock) position for that purpose.
OPERATING INSTRUCTIONS
MAKING BASIC MEASUREMENTS
To make a quick measurement with the IRT105, point the
front of the unit at a surface, press the Meas. (measure)
button, hold it for at least one second, and then release the
button. The temperature of the surface will be displayed
instantly on the L D in elsius or Fahrenheit units. Note that
when you release the Meas. (measure) button the reading will
be held for 15 seconds and then disappear as the IRT
automatically powers off (to extend battery life).
By default, the laser pointer turns on when the Meas.
(measure) button is pressed and turns off when the button is
released. The laser’s default state is indicated by the
presence or absence of the Laser Enabled icon (callout B of
Fig. 2).
To change the laser’s default state from on to off, first
power off the IRT by pressing and holding the Mode button.
Then power on the unit in a special way by pressing and
holding the Mode and Meas. buttons at the same time. Note
that after doing this the Laser Enabled icon will no longer
appear on the top line of the display.
To return the laser’s default state to on, simply press and
hold the Meas. button as you would to make a quick
measurement. Note that after doing so the Laser Enabled icon
will reappear on the top line of the display. 7
To temperature-scan the surfaces of a room or any
environment, press the Meas. (measure) button and keep
pressing it as you point the IRT in various directions. Note that
the display tracks the different temperatures of different
surfaces in real time.
To power off the IRT105, either press and hold the Mode
button or let the auto power off function turn the IRT off after
15 seconds of inactivity.
ADVANCED MEASUREMENT MODES
AND FUNCTIONS
The Mode button below the Meas. button is the gateway to
the IRT105’s five advanced measurement and selection
modes (see Figure 3).
Fig. 3. The Mode button provides access to the IRT105’s five
advanced measurement and selection modes
8
Press 1x to
e ter MAX
Measureme t
mode
Press 2x to
e ter MIN
Measureme t
mode
Press 3x to
e ter
Measureme t
Lock mode
Press 4x to
e ter °C/°F
Selectio
mode
Press 5x
to e ter
Emissivity
Selectio
mode
1. MAX Measurement mode—To identify the hottest surface in
an environment, press the Meas. button to power on the IRT.
Then (within 15 seconds) press the Mode button once. This
will cause the text MAX to appear blinking on the top line of
the display. Then press the Meas. (measure) button. This
changes MAX from blinking to constant, indicating operation
in MAX Measurement mode.
Within 15 seconds, press and hold the Meas. (measure)
button and begin to scan surfaces within sight. Note that in
MAX mode the display no longer tracks the temperatures of
scanned surfaces in real time. Instead, it shows the highest
temperature measured since the Meas. (measure) button
was pressed. Also note that the maximum temperature is
held only for 15 seconds after the Meas. (measure) button is
released, causing the IRT to begin counting down to auto
power off.
To exit MAX mode and return to real-time temperature
scanning, press the Mode button. If the IRT auto powers off
while in MAX mode, it will not resume operation in MAX mode
when powered on again. It will resume operation in real-time
measurement mode.
2. MIN Measurement mode—The flip side of MAX mode, MIN
mode is entered by powering on the IRT105 and pressing the
Meas. (measure) button twice. This causes the text MIN to
appear blinking on the top line of the display. Pressing the
Meas. button changes MIN from blinking to constant,
indicating operation in MIN Measurement mode.
In MIN mode, the display shows the lowest temperature
measured so far during a scanning session. Like MAX values,
MIN values are held for only 15 seconds. To exit MIN mode
and return to real-time scanning, press the Mode button.
9
3. Measurement Lock mode—Pressing the Mode button three
times with the IRT powered on causes the word L CK to
appear blinking on the top line of the display. Pressing the
Meas. (measure) button changes L CK from blinking to
constant, indicating operation in Measurement Lock mode.
In this mode, you need not hold the Meas. (measure) button
while scanning. Surface temperatures are measured and
displayed in real time, and the IRT’s 15-second auto power off
function is disabled. Although Lock mode makes scanning
easier, it has a potential downside: the disabling of auto power
off. If you forget to exit Lock mode and then leave the IRT105
powered on for a long time, you run the risk of discharging the
thermometer battery. So remember to exit Lock mode after
using it by pressing the Mode button.
Before entering Measurement Lock mode, you should disable
the laser pointer—by powering off the IRT and then powering
it back on in a special way by pressing and holding the Meas.
and Mode buttons at the same time, as explained earlier.
Doing so will prevent accident discharging of the laser’s
battery in Lock mode over time with the auto power off
function disabled. Disabling the pointer is also a safety
precaution. If you were to leave the IRT unattended with the
laser on after putting it into Lock mode, a curious child could
enter the room and stare directly at the pointer to investigate
the source of the unusual light.
4. °C/°F Selection mode—Pressing the Mode button
four times with the IRT powered on causes the symbol of the
current default temperature unit (°C or °F) on the right side of
the display to change from constant to blinking. Pressing the
Meas. (measure) button while the term is blinking switches
all displayed readings to the other unit until the default unit is
changed again.
10
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