Fluke 576 User manual

576
Precision Infrared Thermometer
Users Manual
March 2005
© 2005 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies.
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

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576
LIMITED WARRANTY AND LIMITATION OF
LIABILITY
This Fluke product will be free from defects in
material and workmanship for one year from the
date of purchase. This warranty does not cover
fuses, disposable batteries, or damage from
accident, neglect, misuse, alteration, contami-
nation, or abnormal conditions of operation or
handling. Resellers are not authorized to extend
any other warranty on Fluke’s behalf. To obtain
service during the warranty period, contact your
nearest Fluke authorized service center to obtain
return authorization information, then send the
product to that Service Center with a description
of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO
OTHER WARRANTIES, SUCH AS FITNESS FOR
A PARTICULAR PURPOSE, ARE EXPRESSED
OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL OR CONSE-
QUENTIAL DAMAGES OR LOSSES, ARISING
FROM ANY CAUSE OR THEORY. Since some
states or countries do not allow the exclusion or
limitation of an implied warranty or of incidental
or consequential damages, this limitation of liabi-
lity may not apply to you.

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Warning
A Warning identifies conditions and actions that pose ha-
zards to the user. To avoid electrical shock or personal injury,
follow these guidelines:
• Do not point laser directly at eye or indirectly off
reflective surfaces.
• Before using the thermometer inspect the case. Do not
use the thermometer if it appears damaged. Look
for cracks or missing plastic.
• Replace the batteries as soon as the battery indicator
two or less segments.
• Do not use the thermometer if it operates abnormally.
Protection may be impaired. When in doubt, have the
thermometer serviced.
• Do not operate the thermometer around explosive gas,
vapor, or dust.
• Do not connect the optional external probe to live
electrical circuits.
• To avoid a burn hazard, remember that highly reflective
objects will result in lower than actual temperature
measurements.
• Do not use in a manner not specified by this manual or the
protection supplied by the equipment may be impaired.
Caution
To avoid damaging the thermometer or the equipment under
test protect them from the following:
• EMF (electro-magnetic fields) from arc welders,
induction heaters, etc.
• Static electricity
• Thermal shock (caused by large or abrupt
ambient temperature changes- allow 30 minutes
for thermometer to stabilize before use).
• Do not leave the thermometer on or near
objects of high temperature.
Safety Information

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Table of Contents
Introduction .......................................................... 5
Symbols and Safety Markings ............................. 6
Laser Warning and Serial Number Labels ............ 7
Delivery Content ................................................... 8
Batteries and Measurement ................................. 9
Using the Camera .................................................10
Field of View .........................................................12
Spot Size .............................................................. 13
Emissivity - Explanation ....................................... 14
Emissivity ..............................................................15
Emissivity - Unknown Value .................................16
Emissivity Table (Selected Values) ........................17
Hardware and Software Setup ............................. 18
Display .................................................................. 20
Data ...................................................................... 21
Setup .................................................................... 22
Mode ................................................................... 24
Mode - Thermocouple Settings ...........................26
DIP Switches ........................................................ 27
Troubleshooting .................................................... 28
Maintenance .........................................................30
CE Conformity ...................................................... 31
Specifications ....................................................... 32
Specifications of the Camera ...............................33

576
The Fluke Model 576 Infrared Thermometer (the
thermometer) is for non-contact temperature
measurement. This thermometer determines
an object‘s surface temperature by measuring
the amount of infrared energy radiated by the
object‘s surface.
Introduction
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX [phone] - TestEquipmentDepot.com

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
Symbol Explanation

Risk of danger. Important information. See
Manual.
Risk of danger. Important information. See
Manual.
Risk of danger. Important information. See

Hazardous voltage. Precedes warning

Warning. Laser.

Conforms to requirements of European Union
and European Free Trade Association (EFTA)
Conforms to requirements of European Union
and European Free Trade Association (EFTA)
Conforms to requirements of European Union
°
C
Celsius
°
F
Fahrenheit
Battery
Symbols and Safety Markings


Laser ON and OFF
symbol
symbol
symbol
The laser sighting marks
the spot size that includes
the measured target.
To turn the laser On or Off,
press the LASER button
when the trigger is pulled.
A laser symbol appears
when the laser is on. The
laser automatically turns
off if you release

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Laser Warning and Serial Number Labels

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• The unit
• Getting Started
• Two AA batteries
• Manual on CD
• Thermocouple type K probe
• Windows-based software on CD
• USB cable
Delivery Content

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Batteries and Measurement
To open the battery
compartment, press
gently on the top part of
the handle
to release
the catch and pivot the
grip as shown in the
figure. Orient the batteries
(two alkaline R6 (AA,
UM3)) positive side up as
shown on the housing.
To take a temperature
measurement, hold the
unit as shown. Aim at the
target. Pull the trigger (F).
The temperature of the
object being measured
is shown on the display
(B).
The temperature will
be displayed for seven
seconds after trigger is
released.
MEASUREMENT
QUICK START
MEASUREMENT
MEASUREMENTMEASUREMENTMEASUREMENT

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Using the Camera
In addition to the thermometer functionality the
Model 576 comes with a digital built-in camera
to documentate the measured places. The
pictures include the measured values and
additional information. the additional information
is customizable via the IRGraph software.
How to use the camera
1. To switch on the unit, pull the trigger.
2. Press the “Enter” button to activate the
camera while the display is active.
3. First the word “LOG” flashes and then the
camera icon appears.
The unit is ready to use now. It is preset to
take 26 high-resolution (640x480 pixel)
pictures.
4. Pull the trigger and hold it. The laser circle
shows where you are measuring.
5. Aim at the target. Be sure that the laser
sighting is inside the target.
6. Gently release the trigger to record the
photo and the temperature. Successful
recording of picture and temperature is
indicated by two short beeps and a green
blinking LED above the display. The next
location will be shown on the display.
Caution:
If you hear a longer beep and the LED
above the display is shining red, look at the
display. If you see “Use Flash!” and a flash
symbol, repeat your last measurement.
A green LED above the camera symbol
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FAX [phone] - TestEquipmentDepot.com

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signals: “Flash has charged”. The flash will
now fire automatically.
7. For the next measurement, repeat points
5 and 6.
8. Once you have taken all your photos,
connect the unit to the PC via USB.
See software and hardware set up on the next
two pages.
Focusing the Camera
To get sharp and clear pictures simply turn the
focus ring depending on the distance of your
target.
The View Finder Guide
Between
0.2 m
(8 in) and
0.3 m
(12 in.)
adjust the
lens to the
flower
symbol.
Between
0.5 m (19 in)
and infinity
adjust the
lens to the
mountain
symbol.
Between 0.25 m (10 in.) and 0.6
m (23 in.) adjust the lens in the
middle of both symbols.
Rotate the cap to a horizon-
tal position and look over it,
as shown below. The em-
bossed triangle will show you
the approximate width of the
photo.

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Make sure that the target is larger than the unit’s
spot size. The smaller the target, the closer you
should be to it.
Field of View

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STANDARD MODEL
Optical Chart
3000 120
1.0
0
0
24
SPOT DIA. (IN)
SPOT DIA. (mm)
DISTANCE: SENSOR TO OBJECT (mm)
DISTANCE: SENSOR TO OBJECT (IN)
FOCUS POINT D:S = 60:1 FAR FIELD D:S = 35:1
0.76 IN @ 46 IN
19 mm @ 1150 mm
1500
2500 100
60
1.2
2.3
2.9
29.0
58.0
72.0
2000
44.0
1000
500
250
100
24
23
30
0.9 0.81 0.82
1.51 1.85
2.5
19.8
108
84
72
48
20 36
46
0.87
CLOSE FOCUS MODEL
Optical Chart
500
20
1
0
0
0.93
25 23
SPOT DIA. (IN)
SPOT DIA. (mm)
DISTANCE: SENSOR TO OBJECT (mm)
DISTANCE: SENSOR TO OBJECT (IN)
FOCUS POINT D:S = 50:1 FAR FIELD D:S = 12:1
0.24 IN @ 11.8 IN
6 mm @ 300 mm
Close Focus
6
0.62
15,5
150
2
0.9
22
50
4
0.75
18,7
100
7.9 9.8
200 250
0.49 0.37
12,3 9,2
40
1000
2.81
70
The measured spot size depends on the dis-
tance between the object you are measuring and
the infrared thermometer.
The relationship between distance and spot size
is 60:1(Standard Focus) or 50:1 (Close Focus) at
the focus point. The D:S in the far field (>33ft/
10m) is 35:1 (Standard) or 12:1 (Close Focus).
Spot Size

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Emissivity - Explanation
Reflected energy
Emitted energy
Transmitted energy
EMISSIVITY
Target
The amount of infrared
energy radiated by an
object depends on its
emissivity and its
temperature.
The emissivity depends on
the material and its surface
characteristics. For more
accurate readings, adjust
the emissivity value for
the type of material being
measured.

576
Emissivity
To
choose the emissivity of a mate-
ial, press EMISS.
The display shows a material
name, an emissivity value, and the
calculated temperature value. To
choose another material, use the
Up and Down keys.
Press ENTER to activate this set-
ting.
To
adjust the emissivity value,
press EMISS., when not in LOG
mode. Use the Up and Down keys
to select “Free“ (“F
ree
”
will have a
flashing underline).
Press EMISS again. “Free” is not
underlined, and the emissivity icon
flashes. Use the Up and Down keys
to adjust. Press ENTER (D) to acti-
v
ate this setting.
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FAX [phone] - TestEquipmentDepot.com

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576
Emissivity - Unknown Value
To
adjust the unit’s emissivity value for a
material with unknown emissivity, plug in the
probe.
Pull the unit’s trigger. Place the measuring
tip of the probe on the area to be measured.
W
ait for the reading to stabilize.
Release the trigger.
Note the indicated probe temperature reading.
Pull the trigger again. Measure the same area
using infrared measurement.
Press the emissivity button. Use the Up and
Down keys to select the material name “Free”
which will be shown in the display. Press the
emissivity button again until the emissivity sign
flashes. Use the arrow keys to change the
emissivity value until the temperature matches
the probe’s reading.

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Emissivity Table (Selected Values)
Aluminum* 0.30
Asbesto 0.95
Asphalt 0.95
Basalt 0.70
Brass* 0.50
Brick 0.90
Carbon 0.85
Ceramic 0.95
Concrete 0.95
Copper* 0.95
Dirt 0.94
Frozen food, 0.90
Hot food 0.93
Glass (plate) 0.85
Ice 0.98
Iron* 0.70
Lead* 0.50
Limestone 0.98
Oil 0.94
Paint
0.93
Paper
0.95
Plastic**
0.95
Rubber 0.95
Sand
0.90
Skin 0.98
Snow
0.90
Steel* 0.80
T
extiles
Textiles T
0.94
Water 0.93
Wood*** 0.94
*
oxidized
** opaque, over 20 mils
*** natural

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IMPORTANT! Before
you install the software
you must connect the unit with the PC to
confi gure the USB interface.
Proceed as follows:
Connect the unit to the PC via USB. New Hard-
ware will be found. You have to install three
different device drivers - two for USB ports and
one for the camera. A driver is software needed
by your PC to communicate with the thermome-
ter and the camera. You will be asked three times
to install a driver.
Note!
During the driver installation, a message
window could appear, indicating that a particular
driver is not supported or authorized by Micro-
soft. Please ignore this message and continue
with the installation.
The Windows Hardware Assistant will guide you
through the installation process. If you are asked
where to look for the drivers choose CD-ROM. In
most cases, Windows will fi nd the drivers auto-
matically. If Windows asks for the fi le STV680u.
dll please point to the driver‘s folder of the CD.
Hardware and Software Setup

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For the software installation follow the
information on the screen.
Start the software with a double-click on the
IRGraph icon on the desktop.
The following screen appears
The complete description of the software fea-
tures is in the help files of the software.

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Display
The last ten measurements are
shown in the bar graph on the
unit’s display. Auto Range of the
bar graph is automatically defined
by
the measured maximum and
minimum value. Manual Range
(Man Range) is user defined.
CYCLE allows the adjustment of
the display interval of the bar
gr
aph.
Press Display once to see how
many photos are already taken.
the total numbers of photos possi-
b
le is displayed after the slash.
This sets up the BEGIN value for
the graphic display of the bar
gr
aph. The graphic display shows
the temperature as a picture.
This sets up the END value for the
gr
aphic display of the bar graph.
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FAX [phone] - TestEquipmentDepot.com