Fluke 561 HVACPro Manuel utilisateur

561

Infrared Thermometer

Users Manual

PN 2562924

February 2006 Rev. 3, 4/08

without notice. All product names are trademarks of their respective companies.

561

Users Manual

Safety Information

XWWarning

A Warning identifies conditions and actions that pose hazards 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 (B) appears.

•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 often

result in lower than actual temperature measurements.

•If the Thermometer is used in a manner not specified by the manufacturer, the

protection provided by the Thermometer may be impaired.

WCaution

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 the Thermometer to stabilize before use).

•Do not leave the Thermometer on or near objects of high temperature.

Table 1 and Figure 1 show various symbols and safety markings that are on the Thermometer

and in this manual.

Table 1. Symbols

Symbol Explanation

WRisk of danger. Important information. See Manual.

XHazardous voltage. Risk of electrical shock.

*Warning. Laser.

PConforms to requirements of European Union and European Free

Trade Association (EFTA).

~Do not dispose of this product as unsorted municipal waste. Go to

Fluke’s web site for recycling information.

BBattery

„China metrology certification mark for measuring instruments

manufactured in the Peoples Republic of China (PRC).

Infrared Thermometer

Features

AVOIDEXPOSURE- LASERRADIATION

IS EMITTEDFROMTHIS APERTURE

CAUTION

LASERRADIATION-DONOTSTAREINTOBEAM

OUTPUT<1mWWAVELENGTH630-670nm

CLASS2 (II)LASERPRODUCT

COMPLIESWITHFDA21CFR

1040.10AND1040.11

COMPLIESWITHIEC60825

AVOID EXPOSURE - LASER RADIATION

IS EMITTED FROM THIS APERTURE

CAUTION

LASER RADIATION - DO NOT STARE INTO BEAM

OUTPUT <1mW WAVELENGTH 630 - 670nm

CLASS 2 (II)LASER PRODUCT

COMPLIES WITH FDA 21CFR

1040.10 AND 1040.11

COMPLIES WITH IEC 60825

efh010f.eps

Figure 1. Symbols and Safety Markings

Features

The Thermometer includes:

•Single-spot Laser Sighting

•Backlit Display

•Hard Case

•Current Temperature Plus MIN, MAX, DIF Temperature Displays

•Easy Emissivity Selector

•Type-K Thermocouple

•Two AA Batteries

Thermometer features are shown in Figure 2.

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Users Manual

Batteries

(2)

(+)

Display

Function Buttons

Laser

Trigger

Battery

Cover

efh007f.eps

Figure 2. Infrared Thermometer

Display

The primary temperature display reports the current or last IR temperature read until the 7-

second hold time elapses.

The secondary temperature display reports current thermocouple temperature when a type-K

thermocouple is attached. When a thermocouple is not connected, the small temperature

display reports a choice of maximum, minimum, or difference between maximum and minimum

temperature.

You can toggle through the minimum, maximum, and difference IR temperatures anytime the

display is on. The MIN, MAX, and DIF temperatures are constantly calculated and updated

when the trigger is pressed. After the trigger is released, the MIN, MAX, DIF temperatures are

held for 7 seconds.

Note

When the battery is low, Bappears on the display.

The last selection (MIN/MAX/DIF) is maintained on the secondary display even after the

Thermometer has been turned off, providing the batteries have not failed.

Buttons and Connector

efh01f.eps

A Laser “On” symbol

B SCAN or HOLD

C °C/°F symbol (Celsius/Fahrenheit)

D Primary temperature display

E Secondary temperature display

F Emissivity LO, MED, HI

G Temperature values for the MIN, MAX, DIF, KTC.

KTC indicates the thermocouple temperature.

H Low Battery symbol. Appears when the battery charge is <25 %.

Figure 3. Thermometer Display

Buttons and Connector

Button/

Connector Description

CPressCand then press Ato toggle between the MIN,

MAX, and DIF options.

AThe Abutton is used to show the MIN, MAX, and DIF

functions in the secondary display, whichever was pressed

most recently.

DSelects the emissivity setting. You can toggle between LO

(0.3), MED (0.7), or HI (0.95) using A.

K-type thermocouple probe used to make contact

temperature measurement.

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Users Manual

How the Thermometer Works

Infrared thermometers measure the surface temperature of an opaque object. The

Thermometer’s optics sense infrared energy, which is collected and focused onto a detector.

The Thermometer’s electronics then translate the information into a displayed temperature

reading which appears on the display. The laser is used for aiming purposes only.

Operating the Thermometer

The Thermometer turns on when you press the trigger. The Thermometer turns off when no

activity is detected for 7 seconds.

To measure temperature, aim the Thermometer at the target, pull and hold the trigger. Release

the trigger to hold a temperature reading.

Be sure to consider distance-to-spot size ratio and field of view. The laser is used for aiming

only.

Locating a Hot or Cold Spot

To find a hot or cold spot, aim the Thermometer outside the target area. Then, slowly scan

across the area with an up and down motion until you locate the hot or cold spot. See Figure 4.

efh014f.eps

Figure 4. Locating a Hot or Cold Spot

Distance and Spot Size

As the distance (D) from the target being measured increases, the spot size (S) of the area

measured by the unit becomes larger. The spot sizes indicates 90 % encircled energy. The

maximum D:S is obtained when the Thermometer is 900 mm (36 in) from the target resulting in

a spot size of 75 mm (3 in). See Figure 5.

Operating the Thermometer

D:S=12:1

38 mm @

300 mm

75 mm @

900 mm

132 mm @

1500 mm

1.5 " @

12 "

3 " @

36 "

5.3 " @

60 "

efh005f.eps

Figure 5. Distance and Spot Size

Field of View

Make sure that the target is larger than the spot size. The smaller the target, the closer you

should be to it. See Figure 6.

Yes No

efh004f.eps

Figure 6. Field of View

Emissivity

Emissivity describes the energy-emitting characteristics of materials. Most organic materials

and painted or oxidized surfaces have an emissivity of about 0.95.

If possible, to compensate for inaccurate readings that may result from measuring shiny metal

surfaces, cover the surface to be measured with masking tape or flat black paint

(<148 °C/300 °F) and use the high emissivity setting. 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 with

the emissivity selector. Even with the emissivity selector, it can be difficult to get a completely

accurate infrared measurement of a target with a shiny or metallic surface. Experimentation,

using the probe to determine benchmark temperatures, and experience will help you choose the

best setting for specific measurements.

The Thermometer has three emissivity settings: low (0.3), medium (0.7), and high (0.95). Refer

to Table 2. The reference to emissivity settings in the table are suggestions for typical

situations. Your particular situation may differ.

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Users Manual

Table 2. Surface Emissivity

Measured

Surface Switch Setting Measured

Surface Switch Setting

Aluminum Iron, Cast

Oxidized Low Oxidized High, Medium

Alloy A3003 Unoxidized Low

Oxidized Low Molten Low

Roughened Low Iron, Wrought

Brass Dull High

Burnished Low Lead

Oxidized Low Rough Low

Copper Oxidized Low, Medium

Oxidized Medium Molybdenum

Electrical Terminal

Blocks Medium Oxidized Low, Medium

Haynes Nickel

Alloy Medium Oxidized Low

Inconel Platinum

Oxidized High, Medium Black High

Sandblasted Medium Steel

Electoropolished Low Cold-Rolled High

Iron Ground Sheet Medium

Oxidized High, Medium Polished Sheet Low

Rusted Medium Zinc

Oxidized Low

Switching Between

C and

Open the battery compartment and locate the switch positioned between the left side of the

battery near the Thermometer wall. To toggle between °C and °F, use a small screwdriver or

paper clip to move the switch to the desired position. See Figure 7.

Operating the Thermometer

Switch

efh012f.eps

Figure 7. Switching Between °C and °F

Using the Contact Temperature Probe

XWWarning

To avoid electrical shock or personal injury, do not connect the optional external

probe to live electrical circuits.

Connect the probe to the input on the top of the Thermometer. The probe temperature and KTC

appears in the secondary display. The live infrared temperature continues to show in the

primary display. Connect the temperature probe as shown in Figure 8.

Note

With the probe inserted, the Thermometer stays on for 10 minutes (with laser off)

after the trigger is released.

efh009f.eps

Figure 8. Connecting the Temperature Probe

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Users Manual

Table 3 lists recommended Fluke temperature probes for use with the Thermometer:

Table 3. Recommended Temperature Probes

Probe Usage

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-1 The general purpose bead probe is an alternative, 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-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.

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 The Velcro pipe probe is a convenient way to attach a thermocouple to a

pipe while keeping hands free.

HOLD

The display will remain activated for 7 seconds after the trigger is released. HOLD appears in

the upper middle of the display. When the trigger is pulled again, the Thermometer will begin

measuring in the last function selected.

Maintenance

Changing the Battery

To install or change the two AA batteries, open the battery compartment and insert the batteries

as shown in Figure 2.

Cleaning the Lens

Blow off loose particles using clean compressed air. Carefully wipe the surface with a moist

cotton swab. The swab may be moistened with water.

Cleaning the Housing

Use soap and water on a damp sponge or soft cloth.

WCaution

To avoid damaging the Thermometer, do NOT submerge it in water.

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