Fluke 568, 566 user manual Min, Max, Avg, Differential, Nominal Surface Emissivity Material Value

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Infrared Thermometers

Menu Overview

To enter an emissivity value manually:

1.Press 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.Press the Done softkey when finished to return to the main menu.

Table 3. Nominal Surface Emissivity

Material

Value

 

 

Default****

0.95

Aluminum*

0.30

Asbestos

0.95

 

 

Asphalt

0.95

 

 

Brass*

0.50

Ceramic

0.95

 

 

Concrete

0.95

 

 

Copper*

0.60

Food - Frozen

0.90

 

 

Food - Hot

0.93

 

 

 

 

Material

Value

 

 

Glass (plate)

0.85

 

 

Iron*

0.70

 

 

Lead*

0.50

 

 

Oil

0.94

 

 

Paint

0.93

Plastic**

0.95

Rubber

0.95

 

 

Sand

0.90

 

 

Steel*

0.80

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 thermometer.

°C and °F

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

Min, Max, Avg, Differential

The thermometers can measure minimum (MIN), maximum (MAX), average (AVG), or differential (Δ) temperatures each time a reading is taken. These values are not shown if a thermocouple is plugged into the thermometer.

To turn on the Min Max mode:

1.Press the Menu softkey until MnMx (Min Max) appears as the left softkey function.

2.Press 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. Press the Menu softkey until Avg appears as the right softkey function.

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Contents 566/568 Limited Warranty and Limitation of Liability Table of Contents 566/568 List of Tables 566/568 List of Figures 566/568 Contacting Fluke IntroductionWWarning Safety InformationSymbols Explanation Symbols and Markings Display Language FeaturesMenu Overview SaveDescription Light MemoryEmissivity Menu Min, Max, Avg, Differential Nominal Surface Emissivity Material ValueMaterial Value Alarm Trigger LockLaser Backlight SetupDeleting Data LanguageTemperature Measurement How the Thermometers WorkOperating the Thermometer Locating a Hot or Cold Spot Locating a Hot or Cold SpotDistance and Spot Size Distance and Spot SizeEmissivity Field of ViewDownloading Data Storing DataTroubleshooting Troubleshooting Symptom Cause ActionExternal Contact Probe Maintenance Battery ChargeChanging the Batteries Accessories User Replaceable Parts and AccessoriesCleaning the Lens Cleaning the HousingRecommended Temperature Probes Specifications Cable Length Feature 566 568 Battery LifeFeature Type Thermocouple Probe Bead Type Measurement Range CE Certification566/568