Uni-T UT303E Manual

Uni-T Termometer UT303E

Læs nedenfor 📖 manual på dansk for Uni-T UT303E (3 sider) i kategorien Termometer. Denne guide var nyttig for 8 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere

Download PDF

Side 1/3

Emissivity

Distance and Spot Size

Field of View

To contact Uni-Trend. call (852) 2950 9168 or visit Uni-

Trend web site at www.uni-trend.com

Introduction

The Model UT301A/B/C,UT302A/B/C/ D and

UT303A/B/C/D/E Infrared Thermometers (hereafter referred

to as "the Thermometer") can determine the surface

temperature by measuring the

amount of infrared energy

radiated by the target surface. They have different

Distance to Spot(D:S) ratios and

different temperature ranges, read the manual for details.

The Thermometer is a non-contact infrared instrument

designed with low power consumption, which can make

the measurements much faster and easier and meanwhile

save you amount of time from frequent battery replacement.

It can be powered by the battery or the source with USB

connected to.

This Manual uses UT303A/B/C/D/E as illustration.

Contacting Uni-Trend

Warning

Safety Information

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 the laser toward anyone's eye or allow

the laser to strike the eye from a reflective surface.

Before using the Thermometer inspect thecase.

Do not use the Thermometer if it appearsdamaged.

Look for cracks or missing plastic.

Replace the battery as soon as the battery

indicator appears.

Do not use the Thermometer if it operates

abnormally. Protection may be impaired.

When in doubt, have the Thermometerserviced.

Do not operate the Thermometer around

explosive gas, vapor, or dust.

To avoid a burn hazard, remember that highly

reflective objects will often result in lower

than actual temperature measurements.

Do not use in a manner not specified by this

manual or the protection supplied by the

equipment may be impaired.

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-- wait for 30 minutes

for the Thermometer to stabilize before use;

placed 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.

Explanation

Risk of danger. Important information.

See Manual.

Warning. Laser

Conforms to Standards of European Union

Low Battery Indication

Symbol

Table 1. Symbols

Figure 1. Symbols and Safety Markings

Features

The Thermometer includes:

Single Laser Pointer

Intelligent USB-Powered

Level 2 White Backlight(With USB connected,)

this feature will be on automatically).

Current Temperature Plus MIN, MAX, DIF, AVG

Display Functions

Adjustable Emissivity

Trigger Locked

℃ ℉/ Selectable

Tripod mount

One 9V Battery

Thermometer features are shown in Figure 2.

Battery Cover

Display

9V 6F22 Battery

Laser

Trigger

Display

The primary display reports the current or last IR

temperature reading until the 8-second hold time

elapses.

Figure 2. Infrared Thermometer

The secondary display reports a choice of

maximum, minimum, difference between maximum and

minimum temperature or average value.

You can toggle through the maximum, minimum,

difference and average IR temperatures anytime the

display is on. The MAX, MIN, DIF and AV temperatures

are constantly calculated and updated when the trigger

is pressed. After the trigger is released, the MAX, MIN,

DIF and AV temperatures are held for 8 seconds.

D B

HOLD

SCAN

Laser ìOnî Symbol

SCAN or HOLD

oC/ oF Symbol (Cels ius/F ahrenh ei t )

Primary temperature Display

Secondary temperature Display

Emissivity LO, MED, HI

Temperature values for the MAX, MIN,

DIF, AVG

Low Battery symbol. Appears when

the battery charge is <4.5V.

Figure 3. Thermometer Display

Buttons and Connector

Figure 4. Buttons and Connector

Description

Press MODE button to toggle between MAX, MIN,

DIF, and AVG options.

Press to turn the Thermometer on againMODE

and displays the last measurement result.

Press to enter set up mode stepping through

Emissivity set up, Trigger Lock and Switching

C/oF set up.

Refer to the below Emissivity, Trigger Lock

and Switching

oC/oF topics for details.

Press to turn the display backlight on and off.

icon will be on and off also.

When the Thermometer enters the setup up mode,

press to select an option, refer to the below

Emissivity, Trigger Lock and Switching

oC/

F topics for details.

Press to turn the laser on and off. After laser

is on, will be shown.

When the Thermometer enters the user setup

mode, press to select an option, details refer

to the below Emissivity, Trigger Lock and Switching

C/ oF topics.

Button /

Connector

MODE

SET

Table 2. Buttons and Connector

Connect USB cable for supply power to the unit or

data transmission with the software;

Backlight will automatically turn on;

USB

port

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

Locating a Hot or Cold Spot

The Thermometer turns on when you press the trigger.

The Thermometer turns off when no activity is detected

for 8 seconds.

To measure temperature, aim the Thermometer at the

tar get, pull and hold the trigger. Release the trigger to

hold a temperature reading.

Be sure to consider distance-to-spot size ratio and filed

of view. The laser is used for aiming only.

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 located the hot or cold

spot. See Figure 5.

Figure 5. Locating Hot or Cold Spot

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 size indicates 90%

encircled energy. The maximum D:S is obtained when

the Thermometer is 600mm (60 in) from the target

resulting in a spot size of 20mm (2 in). See Figure 6.

Figure 6. Distance and Spot Size

Make sure that the target is larger than the spot size.

The smaller the target, the closer you should be to it.

See Figure 7.

Figure 7. Field of View

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 (<150

o o

C / 302 F) and use the high emissivity

setting. Allow time for the tape or paint to reach the

same temperatures as the surface beneath it. Measure

the temperature of the tape or painted surface.

If you cannot use paint or use tape, then you could

improve the accuracy of your measurements with the

emissivity selector. Even with emissivity selector, it can

be difficult to get a completely accurate infrared

measurement of a target with a shiny or metallic surface.

The Thermometer allows you to adjust the unit's

emissivity for the type of surface before measured.

Refer to Table 3. But it is only a typical case. You could

base on your own case and materials to have different

setting.

To adjust values for emissivity, follow the below

procedure:

1 .

2 .

3 .

Press to select emissivity set up, icon SET E on the

display is blinking. The Thermometer steps through

emissivity set up, trigger lock and switching

oC / oF.

Press to increase the value by 0.01 or press and

hold to access quick setting. The maximum value

is 1.00.

Press to decrease the value by 0.0 or press and

hold to access quick setting. The minimum value

is 0.10.

Table 3. Surface Emissivity

Measure Surface

METALS

Aluminum

Oxidized

Alloy A3003

Oxidized

Roughened

Brass

Burnished

Oxidized

Copper

Oxidized

Electrical Terminal Blocks

Haynes

Alloy

Inconel

Oxidized

Sandblasted

Electoropolished

Switch Setting

0.2-0.4

0.3

0.1-0.3

0.3

0.5

0.4-0.8

0.6

0.3-0.8

0.7-0.95

0.3-0.6

0.15

Iron Cast

Oxidized

Unoxidized

Molten

Iron Wrought

Dull

Lead

Rough

Oxidized

Molydbenum

Oxidized

Nickel

Oxidized

Platinum

Black

Steel

Cold-Rolled

0.6-0.95

0.2

0.2-0.3

0.9

0.4

0.2-0.6

0.2-0.5

0.9

0.7-0.9

Iron

Oxidized

Rusted

NON-METALS

Asbestos

Asphalt

Basalt

Carbon

Unoxidized

Graphite

Carborundum

Ceramic

Clay

Concrete

Cloth

0.5-0.9

0.5-0.7

0.95

0.7

0.8-0.9

0.7-0.8

0.9

0.95

Ground Sheet

Polished Sheet

Zinc

Oxidized

Glass

Plate

Gravel

Gypsum

Ice

Limestone

Paper (any colour)

0.4-0.6

0.1

0.85

0.95

0.8-0.95

0.98

0.95

Produkt Specifikationer

Mærke:	Uni-T
Kategori:	Termometer
Model:	UT303E

Har du brug for hjælp?

Hvis du har brug for hjælp til Uni-T UT303E stil et spørgsmål nedenfor, og andre brugere vil svare dig

Dit navn*

Din email*

Skriv dit spørgsmål her

Termometer Uni-T Manualer

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

31 August 2024

Termometer Manualer

Nyeste Termometer Manualer

Medel No Contact Manual

21 November 2024

Neno Medic T02 Manual

19 November 2024

PCE Instruments PCE-T312N Manual

31 Oktober 2024

PCE Instruments PCE-T 330 Manual

31 Oktober 2024

PCE Instruments PCE-T 394 Manual

22 Oktober 2024

PCE Instruments PCE-T 318 Manual

22 Oktober 2024

PCE Instruments PCE-IR 1300 Manual

16 Oktober 2024

PCE Instruments PCE-FOT 10 Manual

16 Oktober 2024

PCE Instruments PCE-895 Manual

16 Oktober 2024

PCE Instruments PCE-PTH 10 Manual

16 Oktober 2024