Fluke 574 User manual

574
Precision Infrared Thermometer
Users Manual
March 2005
© 2005 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies.

2
574
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.

3
574
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

4
574
Table of Contents
Introduction ........................................................... 5
Warning for the Model 574 NI ............................... 6
Symbols and Safety Markings .............................. 7
Laser Warning and Serial Number Labels ............. 8
Delivery Content .................................................... 9
Functions and Display ........................................... 10
Batteries and Measurement .................................. 11
Field of View .......................................................... 12
Spot Size ............................................................... 13
Emissivity - Explanation and Adjust ...................... 14
Emissivity - Table and Unknown Value .................. 15
Mode - Maximum and Minimum ........................... 16
Mode - Difference and Avarage ............................ 17
Probe Connections ................................................ 18
Setup Alarm ........................................................... 19
Setup - Time and Date .......................................... 20
Setup - Offset and Min-Max Values ...................... 21
Data Logging and Recall ....................................... 22
Display ................................................................... 23
Display - Man. Range ............................................ 24
Display - Cycle ..................................................... 25
DIP Switches ......................................................... 26
Troubleshooting ..................................................... 27
Maintenance .......................................................... 28
Emissivity Table (Selected Values) ......................... 29
CE Conformity ....................................................... 30
Specifications ........................................................ 31
Factory Defaults .................................................... 32

5
574
The Fluke Model 574 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.
Contacting Fluke
To contact Fluke, call one of the following
telephone numbers:
USA: 1-888-44-FLUKE (1-888-443-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: [phone]
Japan: [phone]
Singapore: [phone]
Anywhere in the world: [phone]
For USA Service: 1-888-99-FLUKE (1-888-993-5853)
Or, visit Fluke's Web site at www.fluke.com.
To register your product, visit register.fluke.com.
Introduction

6
574
Concerning Factory Mutual Approved
Nonincendive Devices:
Operation in Environments that Require
Nonincendive Devices
WARNING
IN HAZARDOUS LOCATIONS DO NOT use serial port con-
nections, change batteries or open serial port cover. To re-
duce risk of explosion in hazardous locations, use only Fluke
temp probe part 2432508 and do not use other accessories,
such as power supply and cables.
A nonincendive rating (NI) indicates that this infrared thermo-
meter has been tested to standards for preventing explosi-
ons in hazardous areas by limiting the ability of equipment
to ignite a specifi ed fl ammable gas or vapor-in-air mixture.
Nonincendive equipment is incapable of releasing suffi cient
electrical or thermal energy to ignite fl ammable gases or
vapors under NORMAL operation and environmental condi-
tions.
This noncontact thermometer has a Factory Mutual Nonin-
cendive rating. The rating from this USA organization reads:
“Nonincendive, Class I, Division 2, Groups A, B, C, D; Class
I, Zone 2 IIC; T4 Ta = 50ºC when used with 1.5V alkaline
batteries.“
A Class I, Division 2 location is a location:
• where volatile fl ammable liquids or fl ammable gases
or vapors exist, but are normally confi ned within
closed containers;
• where ignitable concentrations of gases, vapors or liquids
are normally prevented by positive mechanical
ventilation; or
• adjacent to a Class I, Division 1 location, where ignitable
concentrations might be occasionally communicated
• groups A, B, C, D refers to: Acetylene, Hydrogen,
Ethylene, and Propane.
Warning for the Model 574 NI

7
574

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


K
1
The laser sight simplifies
sighting of the measure-
ment object. It
shows the
spot size that includes the
measured target.
To turn the laser on or off
press the LASER button
(K) when the trigger is
pulled. A laser symbol (1)
appears when the laser is
on.
The laser automatically
turns of
f if you release the
trigger.
LASER
K
1

8
574
Laser Warning and Serial Number Labels

9
574
• The unit
• Getting Started
• Two AA batteries
• Manual on CD
• Thermocouple type K probe
• Windows-based software on CD
• RS232 cable
• Power supply
Delivery Content

10
574
Functions and Display
Function keys and display:
(A) Visual and audible
alarm
(B) Display
(C) Up and Down keys
(D) Enter
(E) Handle and battery
compartment
(DIP
switches for
adjustments are
inside handle)
(F)
Trigger
(G) Tripod mount
(H) 6 main function keys
FUNCTIONS
U
SER INTERFACE
Displayed functions:
(1) Laser condition /
Lock symbol
(2)
T
ime (or date)
(3) Main temperature
display
(4) Graphic display
(5) Emissivity value
(6) Status bar
(7) Mode indicator
(8) Battery life indicator
(9) MAX, MIN, DIF, AVG
symbols
DISPLAY
A
A
B
C
D
D
E
F
G
H
1
2
3
4
5
6
7
8
9

11
574
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

12
574
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

13
574
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

14
574
Emissivity - Explanation and Adjust
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.
To adjust the emissivity
value, press EMISS (P).
Use the Up and Down
keys to select “Free“
(“Free
(“Free
” will have a
flashing underline) (7).
Press EMISS again.
“Free” is not underlined,
and the emissivity icon (5)
flashes. Use the Up and
Down keys (C) to adjust.
Press ENTER (D) to
activate this setting.
EMISSIVITY
ADJUST EMISSIVITY
P
5
7
C
C
D

15
574
Emissivity - Table and Unknown Value
T
o adjust the unit’
To adjust the unit’T
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.
Wait for the reading to
stabilize.
P
7
5
C
D
Note the indicated probe temperature reading.
Release the trigger. Pull the trigger again. Measure
the same area using infrared measurement. Press
the emissivity button (P). Use the Up and Down keys
(C) to select the material name “Free” which will be
shown in the display (7). Press the emissivity button
(P) again until the emissivity sign (5) flashes. Use
the arrow keys (C) to change the emissivity value
until the temperature matches the probe’s reading.
UNKNOWN VALUE
To choose the emissivity
of a material, press
EMISS (P). The display
shows a material name
(7), an emissivity value,
and the calculated
temperature value (5).
To
choose another material,
use the Up and Down
keys (C). Press ENTER
(D) to activate this setting.
T
ABLE OF VALUES
TABLE OF VALUEST

16
574
Mode - Maximum and Minimum
O
To activate the MAX mode,
press MODE (O) until the
MAX symbol appears (9).
The measured maximum
temperature is displayed
(3) as long as the trigger
is pulled or locked on.
The
real time temperature is
shown in the lower part of
the display (NORM) (7).
M
AXIMUM
To activate the MIN mode,
press MODE (O) until the
MIN symbol (9) appears.
The measured minimum
temperature (3) is
displayed as long as the
trigger is pulled or locked
on.
The real time temperature
is shown in the lower part
of the display (NORM) (7).
MODE
MINIMUM
O
9
3
7
MAX
9
3
3
7
MIN

17
574
Mode - Difference and Avarage
O
3
7
AVG
9
To activate the AVG mode,
press MODE (O) until the
AVG symbol (9) appears.
The average value of
measured temperatures
(3) is displayed as long
as the trigger is pulled or
locked on. The real time
temperature is shown in
the lower part of the
display (NORM) (7).
To activate the DIF mode,
press MODE (O) until the
DIF symbol (9) appears.
The difference between
the measured max and
min temperatures is
displayed (3) as long as
the trigger is pulled or
locked on. The real time
temperature is shown in
the lower part of the
display (NORM) (7).
3
O
9
7
DIF
AVERAGE
D
IFFERENCE

18
574
Probe Connections
12
10
11
Open the battery compart-
ment and set the switches
ON or Off according to the
desired probe type.
(10) NTC - thermistor
(11) TC - thermocouple
(12) Thermocouple type J
(13) Thermocouple type K
P
ROBE
CONNECTIONS
13
Connect the probe to the
input (U). Press MODE,
until the desired probe
symbol (7) appears. The
probe temperature is
shown in the lower part of
the display (6). The real
time infrared temperature
is shown in the main
display (3).
U
7
6
3

19
574
Setup Alarm
N
A
6
D
C
The low alarm (LoAl)
generates an audible and
visual (flashing LED (A)
and laser) alarm if the
temperature is below the
setpoint. To set the alarm
value (6), Press SETUP
(N) twice and use the Up
and Down keys (C).
Then press ENTER (D)
to activate this setpoint.
N
A
6
C
D
The high alarm (HiAl)
generates an audible and
visual (flashing LED (A)
and laser) alarm if the
temperature is above the
setpoint.
To set the alarm value (6),
Press SETUP (N) once,
and use the Up and Down
keys (C).
Then press ENTER (D)
to activate this setpoint.
HIGH ALARM
LOW ALARM

20
574
Setup - Time and Date
To set the time, press
SETUP (N) three times.
Change the time (2)
using the Up and Down
keys (C).
Then press ENTER (D)
for each time segment to
activate this time setting.
The time appears on the
display
and
is stored within
the data logger
.
T
IME
N
2
C
D
N
DATE
To set the date, press
SETUP (N) four times.
Change the date using the
Up and Down keys (C).
Then press ENTER (D)
for each date segment to
activate this date setting.
The date (2) is stored
within the data logger
.
2
D
C