Uni-Trend UT300A User manual

Model UT300 : USERS MANUAL
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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 thermometer 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 measurement easier and quicker. The Thermometer can intelligently select battery or USB
power source.
Contacting Uni-Trend
To contact Uni-Trend. call (852) 2950 9168 or visit Uni-Trend web site at www.uni-trend.com
Safety Information
Warning
Awarning identifies conditions and actions that pose hazards to the user. To avoid electrical shock or personal injury, follow these guidelines:
zDo not point laser directly at eye or indirectly off reflective surfaces.
zBefore using the Thermometer inspect the case. Do not use the Thermometer if it appears damaged. Look for cracks or missing plastic.
zReplace the battery as soon as the battery indicator appears.
zDo not use the Thermometer if it operates abnormally. Protection may be impaired. When in doubt, have the Thermometer serviced.
zDo not operate the Thermometer around explosive gas, vapor, or dust.
zTo avoid a burn hazard, remember that highly reflective objects will often result in lower than actual temperature measurements.
zDo not use in a manner not specified by this manual or the protection supplied by the equipment may be impaired.
Figure 1. Symbols and Safety Markings
AVOID EXPOSURE – LASER RADIATTION IS EMITTED FROM THIS APERTURE
CAUTION
LASER RADIATION – DO NOT STARE INTO BEAM
OUTPUT
WAVELENGTH
LASER PRODUCT
COMPLIES WITH
Caution
To avoid damaging the thermometer or the equipment under test protect them from the following:
zEMF (electro-magnetic fields) from arc welders, induction heaters, etc.
zStatic electricity.
zThermal shock (caused by large or abrupt ambient temperature changes – all 30 minutes from the Thermometer to stabilize before use).
zDo not leave the Thermometer on or near objects of high temperature.
Features
The Thermometer includes:
zSingle-spot Laser Sighting
zWhite colour Backlit Display
zCurrent Temperature Plus MIN and MAX Temperature Displays/
zDegree Celsius and Fahrenheit Temperature Selectable
zBattery power monitoring
zLow Battery Display
Display
Laser “On” Symbol
SCAN or HOLD
MAX/MIN Temperature values for the MAX and MIN
Battery indication
Display backlit
/ Symbol (Celsius/Fahrenheit)
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
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.

Model UT300 : USERS MANUAL
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Button / Connector Description
/ Press to toggle between Celsius and Fahrenheit
MAX/MIN Press to toggle between MAX and MIN options. MAX and
MIN values are displayed on the secondary 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.
Emissivity
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 / 302) 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.
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.
Troubleshooting
Symptom Problem Action
OL (on display) Target temperature is over range Select target with specifications
-OL (on display) Target temperature is under range Select target with specifications
Low Battery Replace Battery
Blank Display Possible dead battery Check and / or replace battery
Laser does not work zLow or dead battery
zAmbient temperature above 40 (104)
zReplace battery
zUse in area with lower
ambient temperature.
CE Certification
The Thermometer conforms to the following standards:

Model UT300 : USERS MANUAL
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zEN61326: 2006
zEN55022: 1998+A1+A2
zEN55024: 1998+A1+A2
zEN60825-1: 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.
Specifications
Function UT300A UT300B
Auto Power off 33
SCAN 33
HOLD 33
MAX 33
MIN 33
Laser turn off 33
/ Selectable 33
Emissivty 0.95 0.95
Temperature Range -18~ 280-18~ 380
Maximum Measuring Accuracy ±2or ±2%.
When the tested tempearture is belwo 10, add 1on top of the
base.
Assumes ambient operating temperature of 23±2
Repeatability <±0.5or <±0.5%
Resolution 0.1 0.1
Response Time 500mS
White Display Backlit 33
** END **
This operating manual is subject to change without notice.
○,CCopyright 2008 Uni-Trend Group Limited.
All rights reserved.
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: [phone]
Fax: [phone]
Email: [e-mail]
http://www.uni-trend.com