Uni-Trend UT300B Leaflet

UT300 SERIES

Non-contact Infrared Thermometer

Introduction

The Model UT300A and UT300B Infrared Thermometer

(hereafter, the “Thermometer”) can determine the

surface temperature by measuring the amount of

infrared energy radiated by the target’s surface. They

have different distance to spot (D:S) figure and different

temperature range, details see the contents.

The Thermometers are non-contact infrared thermom-

eter with low consumption design so that they can be

used for a longer time, which can solve the frequently

changing battery and low battery issues during

measurement. Intelligent design can make measure-

ment easier and quicker.

Contacting Uni-Trend

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

Uni-Trend web site at www.uni-trend.com

Safety Information

Operating Manual

Caution

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 – all 30 minutes from the

Thermometer to stabilize before use).

Do not leave the Thermometer on or near objects of

high temperature.

Display

HOLD

SCAN

MAX/MIN

Laser “On” Symbol

SCAN or HOLD

Temperature values for the

MAX and MIN
Battery indication
Display backlit

Symbol (Celsius/Fahrenheit)

How the Thermometer Works

Infrared thermometers measure the surface tempera-

ture 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.

The Thermometer turns off when no activity is detected

for 8 seconds.

To measure temperature, aim the Thermometer at the

target, 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.

Button / Connector

Description

MAX/MIN

Press to toggle between

Celsius and Fahrenheit.

Press to toggle between

MAX and MIN options.

MAX and MIN values are

displayed on the second-

ary display.

Press to toggle between

turning on the laser and

display backlight.

The sequence is:

, , ,

none.

Locating a Hot or Cold Spot

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.

Distance and Spot Size

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 1000mm (100 in)

form the target resulting in a spot size of 20mm (2

in).

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. Suggested distance less than 75% of the

theory value.

Maintenance

Changing the Battery

To install or change the 9V battery, open the battery

compartment the battery.

Cleaning the Lens

Blow off loose particles using clean compressed air.

Carefully wipe the surface with a moist cotton swab.

The swab may be moistened with water.

Cleaning the Housing

Use soap and water on a damp sponge or soft cloth.

To avoid damage to the Thermometer, do not soak the

unit into water.

Caution

To avoid damaging the Thermometer, do NOT

submerge it in water.

Specifications

Troubleshooting

Warning

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 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

Thermometer serviced.

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.

Features

The Thermometer includes:

Single-spot Laser Sighting

White colour Backlit Display

Current Temperature Plus MIN and MAX

Temperature Displays

Degree Celsius and Fahrenheit Temperature

Selectable

Battery power monitoring

Low Battery Display

Emissivity

Emissivity describes the energy-emitting characteris-

tics 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 shinymetal surfaces, cover

the surface to be measured with masking tape or flat

black paint (<150 / 302 ) and use the high emissiv-

ity 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.

Symptom

OL (on display)

-OL (on display)

Blank Display
Laser does not work

Problem

Target temperature is over range

Target temperature is under range

Low Battery

Possible dead battery

Action
Select target with specifications

Select target with specifications

Replace Battery

Check and / or replace battery

Low or dead battery

Ambient temperature above

40 (104 )

Replace battery

Use in area with lower ambient temperature.

EN61326: 2006

EN60825-1: 1994+A2: 2001+A1: 2002 Laser Safety Standard

Certification testing was conducted using a frequency range of 80 to 100MHz with instrument in three

orientations.

MAX

MIN

Emissivty

Function

UT300A

UT300B

Auto Power off
HOLD
SCAN

Laser turn off

Selectable

0.95

Temperature Range

Maximum Measuring Accuracy

Repeatability
Resolution
Response Time

White Display Backlit

-18 ~ 280

-18 ~ 380

±2 or ±2%.

Assumes ambient operating temperature of 23 ±2 .

<±0.5 or <±0.5%

0.1

500mS

** END **

This operating manual is subject to change without notice.

Manufacturer:

Uni-Trend Technology (Dongguan) Limited

Dong Fang Da Dao

Bei Shan Dong Fang Industrial Development District

Hu Men Town, Dongguan City

Guang Dong Province

China

Postal Code: 523 925

Headquarters:

Uni-Trend Group Limited

Rm901, 9/F, Nanyang Plaza

57 Hung To Road

Kwun Tong

Kowloon, Hong Kong

Tel: (852) 2950 9168 Fax: (852) 2950 9303

Email: info@uni-trend.com http://www.uni-trend.com

CE Certification

The Thermometer conforms to the following standards:

Figure 1. Symbols and Safety Markings

P/N: 110401101601