Uni-T UT300B Manual
Uni-T
Miljøtermometer
UT300B
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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 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 0.1
500mS
** END **
This operating manual is subject to change without notice.
Copyright 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: (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:
c
Figure 1. Symbols and Safety Markings
P/N: 110401101601
Produkt Specifikationer
| Mærke: | Uni-T |
| Kategori: | Miljøtermometer |
| Model: | UT300B |
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