® 561 Infrared Thermometer Users Manual PN 2562924 February 2006 Rev. 3, 4/08 © 2006-2008 Fluke Corporation, All rights reserved. Printed in China. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for two years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf.
Table of Contents Title Page Introduction ................................................................................ Contacting Fluke ........................................................................ Safety Information ...................................................................... Features ..................................................................................... Display .......................................................................................
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61 Infrared Thermometer Introduction The Fluke 561 Infrared Thermometer (hereafter, the Thermometer) can determine the surface temperature by measuring the amount of infrared energy radiated by the target’s surface or by contact using a thermocouple probe. The Thermometer was designed specifically for use in heating, ventilating, and air conditioning (HVAC) applications. This manual covers all versions of the the Fluke 561. Note that the Japanese models indicate Celsius only.
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.
Infrared Thermometer Features - LASER RADIATION AVOID EXPOSURE THIS APERTURE IS EMITTED FROM CAUTION LASER RADIATION - DO NOT STARE INTO BEAM 630 - 670nm WAVELENGTH OUTPUT < 1mW PRODUCT CLASS 2 (II) LASER FDA 21CFR COMPLIES WITH 1040.10 AND 1040.11 IEC 60825 COMPLIES WITH 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.
561 Users Manual Laser Display Trigger AA Batteries (2) Function Buttons (+) Battery Cover efh007f.eps Figure 2. Infrared Thermometer Display The primary temperature display reports the current or last IR temperature read until the 7second hold time elapses. The secondary temperature display reports current thermocouple temperature when a type-K thermocouple is attached.
Buttons and Connector 2 1 3 8 4 5 7 6 efh01f.eps A B C D E F G H Laser “On” symbol SCAN or HOLD °C/°F symbol (Celsius/Fahrenheit) Primary temperature display Secondary temperature display Emissivity LO, MED, HI Temperature values for the MIN, MAX, DIF, KTC. KTC indicates the thermocouple temperature. Low Battery symbol. Appears when the battery charge is <25 %. Figure 3. Thermometer Display Buttons and Connector Button/ Connector C Description C Press and then press MAX, and DIF options.
561 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.
Operating the Thermometer 75 mm @ 900 mm 132 mm @ 1500 mm S 38 mm @ 300 mm 1.5 " @ 12 " 3"@ 36 " 5.3 " @ 60 " D D:S=12:1 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.
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Operating the Thermometer Switch Figure 7. Switching Between °C and °F efh012f.eps Using the Contact Temperature Probe XWWarning 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.
561 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.
Troubleshooting Troubleshooting Symptom --- (on display) B Blank display Laser does not work Problem Target temperature is over or under range Low battery Possible dead battery 1. Low or dead battery 2. Ambient temperature above 40 °C (104 °F) Action Select target within specifications Replace battery Check and/or replace battery 1. Replace battery 2.
561 Users Manual Wrap Thermocouple Probe (model-specific) Type..............................................................................Type K with miniconnector and Velcro strap, ASTM E230-03 Standard Tolerance Measurement Range ....................................................0 °C to 100 °C (32 °F to 212 °F) Accuracy .......................................................................±2.2 °C (4.0 °F) Total Length..................................................................
