AllTrade 480742 Parts and Description, Measurement Field and Target Size Operating Instructions

Models: 480742

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PARTS AND DESCRIPTION

FIGURE 1

Laser Pointer Beam

LCD Display

F/C Key for Fahrenheit and Centigrade Modes

MODE Key selects Emissivity

LASER Key

BACKLIGHT Button for Night Usage

Point and Shoot

Laser Trigger

Battery Compartment

MEASUREMENT FIELD AND TARGET SIZE OPERATING INSTRUCTIONS

D (Distance)

140

500

1000mm

S (Spot Center)

14

50

100mm

Chart showing the distance of item being measured versus the area (circumference) of the Spot Center. This is a 10:1 ratio.

OPERATING INSTRUCTIONS

USING THE LASER POINTER FEATURE

Your Digital Infrared Thermometer is equipped with a laser pointer feature that helps you accurately target the object you are attempting to measure. While pulling the trigger, press the LASER key (FIGURE 1). Repeat to turn the laser pointer feature off.

USING THE BACKLIGHT FEATURE

The back light feature allows you to easily read the LCD display when working in dim conditions. While pulling to trigger, press the BACKLIGHT key (FIGURE 1). Repeat to turn the backlight off.

SETTING THE TEMPERATURE UNITS

With your Digital Infrared Thermometer, you have the flexibility to switch temperature units between

˚F or ˚C. While pulling the trigger, press the F/C key (FIGURE 1) until the desired unit is shown on the LCD.

SETTING THE EMISSIVITY

All surfaces emit thermal radiation. Depending on the temperature, composition and finish of an object, there is a maximum amount of radiation that any given surface can emit. An object that absorbs all (and reflects none) of the radiation falling upon it is called a blackbody and has an emissivity value of 1.0. However, most surfaces are not blackbody emitters and will emit only a fraction of thermal radiation that a blackbody would at the same temperature.

FIGURE 2 lists the emissivity settings you should use for common objects. Depending on the composition of the object you are attempting to measure, you may need to adjust the emissivity setting on your Digital Infrared Thermometer. If you are unsure of which emissivity setting to use, keep in mind that

an emissivity setting of 0.95 will cover 90% of typical applications.

FIGURE 2

 

 

 

SUBSTANCE

SET THE EMISSIVITY TO:

Brick (red)

.95

Cement

.95

Concrete

.95

Human Skin

.95

Ice

.95

Marble

.95

Mortar

.90

Sand

.90

Snow

.85

Timber

.90

To select emissivity, pull and hold the trigger and press the MODE key. The default emissivity will show on the LCD. Continue pressing the MODE key (FIGURE 1) until LCD displays desired emissivity setting.

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AllTrade 480742 owner manual Parts and Description, Measurement Field and Target Size Operating Instructions, Substance