General Technologies LT102 (0 to 1000 F) Infrared Thermometer with Laser Sight - Manual

1. SAFETY RULES
• This Instrument is designed for indoor use at temperatures
between 32°F to 122°F (0°C to 50°C), altitudes up to 6500 ft.
(2,000 m), and 10% to 90% relative humidity.
• To ensure that the instrument is used safely, follow all safety and
operating instructions in this manual. If the instrument is not used
as described in this operation manual, the safety features of this
device might be impaired.
• To avoid personal injuries and damage to the instrument use ex-
treme caution when working around hot machine or engine parts,
like radiators, exhaust manifolds, catalytic converters, etc.
2. INTERNATIONAL SYMBOLS
Important information
Refer to the User’s Manual
CAUTION: Laser Radiation
AVOID DIRECT EYE EXPOSURE
1mW Output at 630-670 nm
Class II Laser Product
3. TECHNICAL SPECIFICATIONS
3.1 General Specifications
Display: 31⁄2 digits LCD, Max. of 1999 display
with measuring unit indicators, Laser
On indicator and backlight
Resolution: 0.1 to 1 (°C or 1°F)
Operating Temperature: 32°F to 122°F (0°C to 50°C)
Response time:
400 mS (approx.)
Target Size/ Field of View: 8:1 optics ratio with a 1” min. target
Repeatability:
0.5% of reading, plus one digit
Emissivity: Fixed at 0.95
Laser Pointer: Laser Diode, < 1mW output
wavelength 630-670 nm, Class II
Power Source: 9-volt battery type NEDA 1604,
IEC6F22 IEC 6LR61
Battery life: Approx. 20 hours.(w/alkaline batteries)
Power Saving: Automatic shut off after 7 seconds
Wavelength: 6 to 14 µm
Dimensions: 3.2”x 1.6”x 6.3” (82x 41.5 x160 mm)
Weight: 6.5 oz. (180 g) with battery.
Accessories: User’s Manual, Soft Pouch, and 9 V
alkaline battery
3.2 Measurement Specifications
• Accuracies are ±(% of reading + number of least significant dig-
its) at 23°C ±5°C ambient temperature, with less than 75% RH.
4. OPERATION
4.1 Instrument Description
1) Laser pointer
2) IR Sensor
3) LCD Display
4) °F Select Button
5) °C Select Button
6) Backlight ON/OFF Button
7) LASER ON/OFF Button
8) Measurement Trigger
9) Battery compartment cover
Function Range Accuracy Resolution
Temperature ºC
-50°C to -20°C 5.0%
0.1°C
-20°C to 200 ºC 2.0%+2
201°C to 538°C 2.0%+2 1°C
Temperature ºF
-58°F to -4°F 9.0%
0.1°F
-4°F to 200°F 2.0%+4
201°F to 1000°F 2.0%+4 1°F
General Technologies Corp.
LT102
Infrared Thermometer with Laser Sight
4.2 Display Description
4.3 Measurement Procedures
4.3.1 Temperature Measurement
• Hold the instrument by its handle, point the IR Sensor to the
area or object to measure, and press the Measurement Trigger.
• While the Measurement Trigger is kept pressed, the
thermometer is continuously measuring the temperature of the
object pointed at, with the IR Sensor.
• When the Measurement Trigger is released the instrument will
hold the last temperature reading for 7 seconds, and then shut
off automatically.
4.3.2 Field of view or measurement target area
• To take the most accurate temperature measurements, make
sure that the target object is larger than the unit spot size, at any
given measuring distance.
• The smaller the target the closer you should be.
• For maximum accuracy make sure that the target area is at
least twice as large as the spot size.
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Laser On Indicator
Emissivity Coeficient
°C Scale Selected
°F Scale Selected
Display Hold Mode
Continuous Scan Mode
Temperature Readout
Low Battery Warning
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