General IRT105 Manuel utilisateur

6:1 POCKET INFRARED

THERMOMETER

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

anual del Usuario . . . . . . . . . . . . . . . . 20 – 39

anuel de L'Utilisateur . . . . . . . . . . . . . 40 – 59

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.

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

CAUTI N: Use of controls or adjustments or performance of

procedures other than those specified herein may result in

dangerous radiation exposure.

The IRT105’s targeting laser is a lass 2 type that emits less

than 1mW of power at a wavelength of 655nm. 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.

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

I. Laser Laser Identification/

ertification/Warning/

Safety Labels (on left side)

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

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.

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

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.

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.

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