FLUKE 572-2 Infrared Thermometer User Manual

June 4, 2024
FLUKE

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FLUKE 572-2 Infrared Thermometer

Introduction
The 572-2 Infrared Thermometer (the Product) is for non-contact temperature measurement. The Product determines the surface temperature of an object by measuring the amount of infrared energy radiated by the object surface. The Product also uses a K-type thermocouple for contact temperature measurement.
Contact Fluke
To contact Fluke, call one of the following telephone numbers:

Safety Information
A Warning identifies conditions and procedures that are dangerous to the user. A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test.
Symbols used on the Product and in this manual are explained in Table 1. Laser safety markings are shown in

Warning

To prevent possible electrical shock, fire, eye damage, and personal injury:

  • Read all safety Information before you use the Product.
  • Use the Product only as specified, or the protection supplied by the Product can be compromised.
  • Do not use the Product around explosive gas, vapor, or in damp or wet environments.
  • Do not use the Product if it operates incorrectly.
  • See emissivity information for actual temperatures. Reflective objects result in lower than actual temperature measurements. These objects pose a burn hazard.
  • Do not look directly into the laser with optical tools (for example, binoculars, telescopes, microscopes). Optical tools can focus the laser and be dangerous to the eye.
  • Do not look into the laser. Do not point laser directly at persons or animals or indirectly off reflective surfaces.
  • Use the product only as specified, or hazardous laser radiation exposure can occur.
  • Do not use laser viewing glasses as laser protection glasses. Laser viewing glasses are used only for better visibility of the laser in bright light.
  • Do not open the Product. The laser beam is dangerous to eyes. Have the Product repaired only through an approved technical site.
  • Have an approved technician repair the product.

Caution
For safe operation and maintenance of the Product:

  • Remove the batteries if the Product is not used for an extended period of time, or if stored in temperatures above 50 °C. If the batteries are not removed, battery leakage can damage the Product.
  • Replace the batteries when the low battery indicator shows to prevent incorrect measurements.
  • Have the Product repaired before use if the batteries leak.
  • Be sure that the battery polarity is correct to prevent battery leakage.
  • Do not short the battery terminals together.
  • Do not keep cells or batteries in a container where the terminals can be shorted.
  • Do not put battery cells and battery packs near heat or fire. Do not put in sunlight.

Caution
To avoid damage to the Product or the equipment under test, protect them from:

  • EMF (electro-magnetic fields) from arc welders, induction heaters, etc.
  • Static electricity
  • Thermal shock (caused by large or abrupt ambient temperature changes. For highest accuracy, allow 30 minutes for Thermometer to become stable before use).
Symbol Explanation
Hazardous voltage. Risk of electrical shock.
Risk of danger. Important information. See manual.
Warning. Laser.
Conforms to European Union directives.
° C Celsius
° F Fahrenheit
Battery

| This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE Directive Annex I, this product is classed as category 9 “Monitoring and Control Instrumentation” product. Do not dispose of this product as

unsorted municipal waste. Go to Fluke’s website for recycling information.

| Battery
| Conforms to relevant South Korean EMC Standards.
****| Conforms to China Metrology Certification.

FLUKE-572-2 Infrared-Thermometer-01

Features

  • Dual laser sighting
  • Backlit display
  • Current Temperature plus MAX, MIN, DIF, AVG temperature displays
  • Two AA batteries
  • Hard case
  • 80PK-1 K-type thermocouple probe
  • Adjustable emissivity and predefined emissivity table
  • Infrared and thermocouple temperature display
  • Celsius or Fahrenheit temperature display
  • Tripod mount
  • Auto off
  • Standard miniature K-type thermocouple connector input
  • Printed 572-2 Getting Started
  • 572-2 Manuals CD
  • 12 or 24 hour clock
  • Last reading Hold (20 seconds)
  • Multi-language interface
  • High and low temperature alarm
  • Data storage and review
  • Trigger lock
  • USB 2.0 computer interface cable
  • FlukeView® Forms Documenting Software

Display
The Product display can show data in these languages:

  • English
  • Spanish
  • French
  • German
  • Portuguese
  •  Simplified Chinese
    To change the displayed language, refer to “Setup”.

Menu Overview
There are many settings that can be changed with the menu. Figure 2 shows the LCD and menu interface. Selecting the Menu softkey advances the menu to the next level. Table 2 is a top-level description of the menu.

FLUKE-572-2 Infrared-Thermometer-02

Level| Left Softkey| Description| Center

Softkey

| Right

Softkey

| Description
---|---|---|---|---|---


1

| Save| Save reading to memory| Menu| Light| Adjust backlight brightness


2

| Mem| Review/delete memory entries| Menu| | Set emissivity
3| MnMx| Enables Min/Max| Menu| Avg| Enable Avg/Diff
4| ° C/ ° F| Toggle between C and F| Menu| Alarm| Set and enable alarms


5

| (Lock)| Lock the Product on| Menu| Laser| Toggle the laser on/off



6

| Setup| –  Turn off/on backlight

Change Time/Date

–  Change Language

| Menu| ****


| ****


Each menu item and function is explained in greater detail in the following sections.

Save
To save readings:

  1. Pull the trigger to take a measurement.
  2. Release the trigger to stop taking the measurement.
  3.  Push the Save softkey to enter the Save menu.
  4. Push the Yes softkey to save the reading.
    The reading is assigned a memory location and a time and date stamp. The reading includes:
  • IR temperature
  • Emissivity
  • Date/Time
    You can also push the Cancel softkey to abort saving the reading.

Light
The Product has a backlit display with two brightness levels. The Light softkey is used to adjust the backlight brightness. The backlight is on each time the trigger is pulled.
To toggle the backlight brightness, push the Light softkey.
The backlight can be disabled using the Setup menu. See “Setup” for more information.
Memory
The Product can store measurement records including time, date, emissivity, and measurement record numbers (see “Save” for more information). The Product can store 99 records.
To access records stored in memory:

  1.  Push the Menu softkey until Mem shows as the left softkey function.
  2.  Push the Mem softkey to access the Memory menu. Saved readings can be read.

Emissivity Menu
The Emissivity menu includes a list of pre-defined materials and lists their typical emissivity values, see Table 3. For further information, see “Emissivity”.
Note Default emissivity is 0.95.
To access the Emissivity menu:

  1. Push the Menu softkey until  (emissivity) shows as the right softkey function.
  2. Push the  softkey.

You can push the Table softkey to access the Emissivity list. You can also push the No. softkey to manually enter the typical emissivity of a material.

  • If the Emissivity table is accessed, a list of materials and their suggested emissivity is shown.
  1. Use the down arrow to navigate through the list.
  2. Push the Enter softkey to choose the desired material.
  • To enter an emissivity value manually:
  1. Push the No. softkey.
  2. Use the down or up arrow softkey to change the entry. Hold down the up or down arrow softkey to increase the rate of change.
  3. Push the Done softkey when finished to return to the main menu.
Material Value Material Value
Default 0.95 Glass (plate) 0.85
Aluminum 0.30 Iron* 0.70
Asbestos 0.95 Lead* 0.50
Asphalt 0.95 Oil 0.94
Brass* 0.50 Paint 0.93
Ceramic 0.95 Plastic** 0.95
Concrete 0.95 Rubber 0.95
Copper 0.60 Sand 0.90
Food – Frozen 0.90 Steel* 0.80
Food – Hot 0.93 Water 0.93
Wood 0.94

Oxidized

Opaque, over 20 mils

Natural

Factory Setting

Highlighted items may also be found in the emissivity table built into the Product.

°C and °F
To toggle between °C (Celsius) and °F (Fahrenheit) measurements, push the Menu softkey until °C or °F shows as the left softkey function. Push the corresponding softkey to change between the measurements.

Min, Max, Avg, Differential
The Product can measure minimum (MIN), maximum (MAX), average (AVG), or differential (∆) temperatures each time a reading is taken. These values are not shown if a thermocouple is plugged into the Product.
To turn on the Min Max mode:

  1. Push the Menu softkey until MnMx (Min Max) shows as the left softkey function.
  2.  Push the MnMx softkey.

The display shows the present reading, maximum and minimum readings, and the emissivity setting.
To turn on the Avg/Dif mode:

  1. Push the Menu softkey until Avg shows as the right softkey function.
  2.  Push the Avg softkey.

The display shows the present reading, average reading, the differential reading between max and min (designated by ∆), and the emissivity setting.
Alarm
The Product has a programmable high and low alarm to designate high or low readings, depending on the thresholds entered. When the alarm level is reached, an alarm will sound and the display will flash orange and white. To set either the high or low alarm:

  1. Push the Menu softkey until Alarm shows as the right softkey function.
  2.  Push the Alarm softkey to access the Alarm menu.
  3. Push either the Hi or Lo softkey, depending on which alarm will be set.
  4. Push the ON softkey to turn the alarm on.
  5. Push the OFF softkey to turn the alarm off.
  6.  Use the Set softkey to access the Hi or Lo Alarm Set menu.
  7. Use the down or up softkeys to change the alarm setting.
  8. Once the necessary settings have been entered, push the Done softkey.

Trigger Lock
The Product trigger can be locked on for continuous measurement.
To enable continuous measurement mode, hold down the trigger for a few seconds until the  symbol shows.
To lock the trigger:

  1.  Push the Menu softkey until the lock symbol shows as the left softkey function.
  2.  Push the  softkey to lock the trigger. The lock symbol shows on the display to designate a locked trigger. When the trigger is locked, the  softkey changes to. Push this softkey to unlock the trigger.

Laser

Warning
To prevent eye damage and personal injury, do not look into the laser. Do not point laser directly at persons or animals or indirectly off reflective surfaces.

The laser of the Product is to be used for aiming purposes only. The laser turns off when the trigger is released.
To enable or disable the laser:

  1. Push the Menu softkey until Laser shows as the right softkey function.
  2. Push the Laser softkey to enable or disable the laser. shows on the display when the laser is enabled.

Setup
From the Setup menu, the backlight, time and date, and display language can be changed.
Language
To change the display language:

  1.  From the main menu, push the Menu softkey until Setup shows as the left softkey function.
  2.  Push the Setup softkey.
  3. Use the down arrow softkey to move the indicator to Language.
  4.  Push the Enter softkey.
  5.  Use the down arrow to move the indicator to the desired language.
  6. Push the Enter softkey to complete the language selection or push the Back softkey to return to the Setup menu.

Backlight
In normal use, the backlight is always on. Use this menu to change the backlight setting from on to off. Turn the backlight off to conserve battery power.

  1. Push the Menu softkey until Setup shows as the left softkey function.
  2. Push the Setup softkey.
  3. Backlight has an indicator next to it. To enter the backlight menu, push the Enter softkey.
  4. Push the OFF softkey to turn the backlight off, push the ON softkey to turn it on.
  5.  Push the Back softkey to return to the Setup menu.

Time/Date
To change the time on the Product:

  1. Push the Menu softkey until Setup shows as the left softkey function.
  2. Push the Setup softkey to enter the Setup menu.
  3. Push the down arrow softkey to select Time/Date.
  4. Push the Enter softkey.
  5. Push the Time softkey.
  6.  Push the necessary time format softkey (24hr or 12hr).
  7. Use the up and down softkeys to change the selected hour to the correct hour.
  8.  Push the Next softkey to select the minutes.
  9. Use the up and down softkeys to change the selection to the desired minute.
  10.  When in 12-hour mode, push the Next softkey to highlight the am/pm parameter.
  11.  Use the up and down softkey to change to am or pm.
  12. Push the Done softkey when finished. The display reverts to the first page of the Time/Date menu.

To change the date on the Product:

  1.  From the main menu, push the Menu softkey until Setup shows as the left softkey function.
  2. Push the Setup softkey.
  3. Push the down arrow softkey to select Time/Date.
  4. Push the Enter softkey.
  5. Push the Date softkey.
  6. Select the date format: Day/Month/Year (dmy) or Month/Day/Year (mdy).
  7. Use the up and down softkeys to change the selected parameter.
  8. Push the Next softkey and the arrow softkeys to select the month, date, or year parameters.
  9. Use the up and down softkeys to change the selected parameter.
  10. Push the Next softkey to move through each parameter.
  11.  Push the Done softkey when finished. The display reverts to the start of the Time/Date menu.

Delete Data
To delete stored data from the Product, from the main menu, push the menu softkey until Mem shows as the left softkey function. The last memory location shows on the display. To access the Delete menu, push the Delete softkey. From here, all of the Product memory or individual records can be deleted.
Delete All Data
To delete all of the records:

  1. Push the All softkey.
  2. At the confirmation screen, push the Yes softkey.

Delete Individual Data Records
To delete individual records:

  1. Push the View softkey.
  2. Use the down and up arrow softkeys to access the desired record.
  3. Once the desired record is shown, push the Yes softkey to delete the record.
  4. To cancel data deletion, pull the trigger.

How the Product Works
Infrared thermometers measure the surface temperature of an object. The Product optics sense emitted, reflected, and transmitted energy, which is collected and focused onto a detector. The Product electronics translate the signal into a temperature measurement and shows the measurement on the display

FLUKE-572-2 Infrared-Thermometer-03

Product Operation

Temperature Measurement
To measure temperature, point the Product at an object and pull the trigger. You can use the laser pointer to aim the Product. You can also insert the K-type thermocouple probe for contact measurement. Be sure to consider distance-to-spot size ratio and field of view (see “Distance and Spot Size” and “Field of View”). The temperature is shown on the display.
Note

The laser is used for aiming purposes only and is not related to temperature measurement.

The Product features an auto off function that automatically powers down the Product after 20 seconds of inactivity. To turn the Product on, pull the trigger.

Locate a Hot or Cold Spot
To find a hot or cold spot, aim the Product outside the desired area. Then, slowly scan across the area with an up and down motion until you locate the hot or cold spot

FLUKE-572-2 Infrared-Thermometer-04

Distance and Spot Size
As the distance (D) from the object being measured increases, the spot size (S) of the area measured by the Product becomes larger. The relationship between distance and spot size (D:S) for each Product is shown in Figure 5. The spot sizes indicate 90 % encircled energy.

FLUKE-572-2 Infrared-Thermometer-05

Field of View
For accurate measurements, make sure that the target is larger than the Product spot size. The smaller the target, the closer you should be to it FLUKE-572-2 Infrared-Thermometer-06

Emissivity
Emissivity describes the energy-emitting characteristics of materials. Most organic materials and painted or oxidized surfaces have an emissivity of approximately 0.95, the default setting for the Product.
To compensate for inaccurate readings that may result from measuring shiny metal surfaces, you can cover the surface to be measured with electrical tape or flat black paint (<148 °C/300 °F) with emissivity set to 0.95. Allow time for the tape or paint to reach the same temperature as the surface beneath it. Measure the temperature of the tape or painted surface.
If you cannot paint or use tape, then you can improve the accuracy of your measurements by either numerically adjusting emissivity or by using the Emissivity Menu to access a table of some common materials. The Product has numerically-adjustable emissivity from 0.10 to 1.00 that can be used in conjunction with the emissivity in Table 3. Also, the Product has a built-in table of the most common materials that can be set from the Emissivity menu. The built-in values are indicated in Table 3.
HOLD
The display retains its last infrared measurement for twenty seconds when the trigger is released, when HOLD is shown on the display. With the probe inserted, the contact thermometer remains on. To freeze the infrared temperature when a probe is not inserted, release the trigger until HOLD shows on the display.

Data Storage
The Product can store up to 99 data records. The information below is stored in each record:

  • Record number
  • IR and probe temperature in °F or °C
  • Date/Time
  • Emissivity
    For more information, see “Save”.

Data Download
The stored data can be downloaded to a personal computer (PC) with the included USB cable and the included Fluke  View Forms Documenting Software. See the Fluke View® Forms documentation for details. The USB input  is located on the top of the Product next to the external probe input
Note:

To prevent incorrect readings, do not do a temperature measurement of an earthed conductor while the Product is connected to a PC that is earthed by a three-phase grounding plug.

FLUKE-572-2 Infrared-Thermometer-07

External Contact Probe

Warning
To avoid electrical shock or personal injury, do not connect the external contact probe to live electrical circuits.

The Product comes with a bead K-type thermocouple probe. The probe attaches to the Product via the probe input located on the top of the Product
With the probe installed, the probe symbol on the display. The probe can be used simultaneously while the Product is taking non-contact measurements. The probe measurements are shown below the non-contact measurements. The Product will stay on when there is a probe inserted. When used with a personal computer and Fluke View Forms, the auto off feature is disabled.
Troubleshooting
See Table 4 for solutions to possible problems when using the Product.
Table 4. Troubleshooting

Symptom Cause Action
(on display) Target temperature is over or under range. Select target within

specifications
| Low batteries| Replace batteries
Blank display| Thermometer is asleep

Possible dead batteries

| Pull trigger

Replace batteries

Laser does not work| Low or dead batteries

Ambient temperature is above 40 °C (104 °F)

| Replace batteries

Use in area with lower ambient temperature

Failed communication via USB| Unit is off

FlukeView Forms is not running

| ****

Pull the trigger

Start FlukeView Forms

Inaccuracy| Possible incorrect emissivity setting, field of view, or spot size| See “Emissivity”, “Field of View” and “Distance and Spot Size” sections.
Settings such as emissivity, date/time, F/C, and saved data lost| ****


Battery dead or not replaced in

<1 minute of removal

| Reset settings. Replace batteries as soon as low battery indicated; Exchange the batteries within one minute of removal. Refer to “Changing the Batteries”.

Maintenance

Battery Charge
Use the battery charge symbols to gauge the approximate level of charge left on the batteries.
Note

When in low battery mode, the Product does not store values. “Err” shows on the display if attempted.

Batteries are at 5 %. Before taking further readings, the batteries must be changed.

Battery Replacement

Warning
To prevent possible electrical shock, fire, eye damage, and personal injury:

  • Do not open the Product. The laser beam is dangerous to eyes. Have the Product repaired only through an approved technical site.
  • Have an approved technician repair the Product. For safe operation and maintenance of the Product:
  • Repair the Product before use if the batteries leak.
  • Be sure that the battery polarity is correct to prevent battery leakage.

Caution

  • Do not short the battery terminals together.
  • Do not keep cells or batteries in a container where the terminals can be shorted.
  • Do not put battery cells and battery packs near heat or fire. Do not put in sunlight.

Note
The batteries should be replaced in less than one minute after removal to avoid manually re-initializing the Product clock and date.

To install or change the two AA batteries

  1. Slide the locking tab on the battery door to the “ position and then open the handle.
  2. Insert the batteries noting their correct polarity.
  3. Close and lock the handle.

FLUKE-572-2 Infrared-Thermometer-08

Clean the Lens
Blow off loose particles. Carefully wipe the surface with a water-moistened cotton swab.
Clean the Case
Use soap and water on a damp sponge or soft cloth.

Caution
To avoid damaging the Product, do NOT submerge it in water. Do not use abrasive cleaners, they will damage the case.

User-Replaceable Parts and Accessories

User-Replaceable Parts
See Table 5 for a list of replaceable parts.

Part Part Number
572-2 Manuals CD 4307031

572-2 Getting Started

(English, French, German, Spanish, Portuguese, Russian, Simplified Chinese)

| ****

4307046

Accessories
Optional accessories for the Product are:

  • Soft Carrying Case (H6)
  • Calibration Certification
  • All K-type thermocouple probes with standard mini-connector. See Table 7 for more information.

Recommended Temperature Probes

Warning
To avoid electrical shock or personal injury, do not connect the external contact probe to live electrical circuits.

See Table 6 for a list of recommended temperature probes.

Probe Usage
80PK- 1 The general purpose bead probe is for quick, accurate

surface temperatures and air temperatures within ducts, vent temperatures.
**80PK- 8| Pipe clamp probes (2) are essential for tracking continuously changing temperature differentials on hydronic tubing and pipe loops, and good for quick, accurate refrigerant temperatures.
80PK- 9| The insulation-piercing probe provides a sharp tip to pierce pipe insulation and flat probe tip for good surface thermal contact, air temperatures within ducts, and vent temperatures.
****
80PK- 11| Flexible cuff thermocouple temperature probe is a convenient way to attach a thermocouple to a pipe while keeping hands free.
80PK- 25| The piercing probe is the most versatile option. Good for checking air temperature in ducts, surface temperature under carpets/pads, liquids, thermometer wells, vent temperatures, and for penetrating pipe insulation.
****
80PK- 26**| The tapered probe is a good general-purpose gas and surface probe, with a good length and low mass tip casing for faster reaction to surface and air temperatures.

Specifications

Thermal

IR Temperature Range| -30 °C to 900 °C (-22 °F to 1652 °F)
__

IR Accuracy (Calibration geometry with ambient temperature 23 °C±2 °C)

| ≥0 °C: ± 1 °C or ± 1 % of reading, whichever is greater (≥32 °F: ± 2 °F or ± 1 % of reading, whichever is greater)

≥-10 °C to <0 °C: ±2 °C(≥14 °F to <32 °F: ±4 °F)

<-10°C: ±3 °C (<14 °F: ±6 °F)

IR Repeatability| ±0.5 % of reading or ±0.5 °C (±1 °F), whichever is greater.
Display Resolution| 0.1 °C / 0.1 °F
Spectral Response| 8 mm to 14 mm
Response Time (95 %)| <500 ms
K-Type Thermocouple Input Temperature Range| -270 °C to 1372 °C (-454 °F to 2501 °F)
K-Type Thermocouple Input Accuracy (with ambient temperature 23 °C±2 °C)| <-40 °C: ±(1 °C + 0.2 °/1 °C)

≥-40 °C: ±1 % or 1 °C, whichever is greater

<-40 °F: ±(2 °F + 0.2 °/1 °F)

≥-40 °F: ±1 % or 2 °F, whichever is greater

K-Type Thermocouple Repeatability| ±0.5 % of reading or ±0.5 °C (±1 °F), whichever is greater
K-Type Thermocouple Resolution| 0.1 °C/0.1 °F
Optical
Distance:Spot (90 % energy)| 60:1(calculated at 90 % energy)
Laser sighting| Offset dual laser, output <1 mW
Minimum spot size| 19 mm
Operational
Emissivity| Digitally adjustable from 0.10 to 1.00 by 0.01 or via built-in table of common materials (see Table 3 for list of materials and value)
Probe input| KTC (Should display simultaneous probe and IR temperature)
Data storage| 99 points
Communication| USB 2.0
Operating Altitude| 2000 meters
Storage Altitude| 12,000 meters
Relative Humidity| 10 % to 90 % RH non-condensing up to 30 °C (86 °F)
Operating Temperature| 0 °C to 50 °C (32 °F to 122 °F)
Storage Temperature| -20 °C to 60 °C (-4 °F to 140 °F)
Vibration| 2.5 G, IEC 60068-2-6
Weight| 0.322 kg (0.7099 lb)
Dimensions| 17.69 cm (6.965 in) H x 16.36 cm (6.441 in) L x 5.18 cm (2.039 in) W
Power| 2 AA Batteries
Battery Life| 8 hours with laser and backlight on; 100 hours with laser and backlight off, at 100 % duty cycle (thermometer continuously on)
Standards and Agency Approval| EMC: meets IEC61326-1: Portable Safety Compliance: IEC 60825-1, Class 2

Implement Standard: Q/SXAV 1

Electromagnetic Compatibility| Applies to use in Korea only. Class A equipment; (Industrial Broadcasting & Communication Equipment)[1] [1] This product meets the requirement for industrial (Class A) electromagnetic wave equipment and seller or user should take notice of it. This equipment is intended t

use in business environment and is not to be used in homes.

---|---

K-Type Thermocouple Bead Probe Specifications

__

Measurement Range

| __

-40 °C to 260 °C (-40 °F to 500 °F)

---|---
__

Accuracy

| ±1.1 °C (±2.0 °F) from 0 °C to 260 °C (32 °F to 500 °F). Typically

within 1.1 °C (2.0 °F) from -40 °C to 0 °C (-40 °F to 32 °F)

__

Cable Length

| 1 m (40 in) K-type thermocouple cable with standard miniature thermocouple connector and bead termination

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