Fluke 561 User Manual download pdf (Page 3)

Table of Contents

Title Page

Introduction............................................................................................. 1

Contacting Fluke...................................................................................... 1

Safety Information................................................................................... 2

Features................................................................................................... 3

Display..................................................................................................... 4

Buttons and Connector............................................................................ 5

How the Thermometer Works ................................................................. 6

Operating the Thermometer .................................................................... 6

Locating a Hot or Cold Spot ................................................................ 6

Distance and Spot Size........................................................................ 6

Field of View........................................................................................ 7

Emissivity............................................................................................ 7

Switching Between °C and °F.............................................................. 8

Using the Contact Temperature Probe ................................................ 9

HOLD................................................................................................... 10

Typical Measurements ............................................................................ 10

Measuring Heating/Cooling Duct Insulation Jacket Temperature ....... 10

Measuring Dewpoint Temperature...................................................... 10

Testing Insulated Return Ducts........................................................... 11

Scanning Walls for Air Leaks or Insulation Deficiencies..................... 11

Testing Contactors (Starters).............................................................. 12

Testing Enclosed Relays...................................................................... 12

Testing Fuses and Buss Connections.................................................. 12

Testing Electrical Connections ............................................................ 12

Testing Bearings.................................................................................. 13

Testing Belts and Sheaves................................................................... 13

Checking Hydronic Radiant Heat Applications .................................... 14

Testing Radiant Heat Applications....................................................... 14

Testing Water Heater Insulation.......................................................... 14

Testing Steam Traps ...........................................................................14

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Fluke 561 User Manual Page 3