
IRT650
USER’S MANUAL
12 to 1 Wide-range Infrared Thermometer
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
INTRODUCTION:
Thank you for purchasing this Infrared Thermometer. This is a non-contact infrared temperature measuring instrument.
Features include a 4 digits backlit LCD, scan/hold/auto function and auto power off (6 seconds). To measure a temperature,
point the unit at the desired object, pull the measuring trigger and hold till the end of the shot. Make sure the target area is
larger than the unit’s spot size.
Visit us at www.TestEquipmentDepot.com

FEATURES:
• High performance for general purposes
• Ultra low power consumption in shutdown mode
• Extended long time measuring reliability
• Laser sighting On/Off is switchable
• Backlit LCD display
• °F or °C selectable
• Electronic trigger lock
APPLICATIONS:
• Manufacturing processes of semiconductor technology
• Automotive repair and maintenance
• Food safety and processing
• HVAC energy audits
• Electrical troubleshooting
• Testing terminals on circuits
• Scientific experiment
• Air conditioning
SAFETY INFORMATION:
Read the following safety information carefully before
attempting to operate or service the meter. Only qualified
personnel should perform repairs or services not covered in
this manual.
LASER WARNING NOTE!
Do not point laser directly at eyes.
Use caution around reflective surfaces.
Keep out of reach of children!
CAUTIONS!
DO NOT submerge the unit in the water.
This product is not designed for use in medical evaluations.
The product can only be used to measure body temperature
for reference. It is meant for industrial and scientific
purposes.
SAFETY SYMBOLS
Dangerous, refer to this manual before using the
meter.
CE Certification
This instrument conforms to the following standards:
EN61326: Electrical equipment for measurement, control and
laboratory use.
IEC61000-4-2: Electrostatic discharge immunity test.
IEC61000-4-3: Radiated, radio-frequency, Electromagnetic
IEC61000-4-8: Power frequency magnetic field immunity
Tests were conducted using a frequency range of
80-1000MHz with the instrument in three orientations.
The average error for the three orientations is ±1.0 °F
(±0.5 °C) at 3V/m throughout the spectrum. However,
between 781-1000MHz at 3V/m, the instrument may not
meet its stated accuracy.
improve the environmental performance of all operators
(manufacturers, traders, treatment facilities) involved in the
life cycle of products. Dispose of the product appropriately in
accordance with relevant regulations.
SPECIFICATIONS:
field immunity test.
test.
The device may not be disposed in the trash. It
promotes the re-use recycling and other forms of
recovery of used materials and components, and to
Distance/Spot Ratio: 12:1
Temperature Range: -25° to 999°F (-32° to 535°C)
Accuracy(@ ambient temperature of 77°F/25°C):
±5°F (±3°C) within -25° to -4°F (-32° to -20°C)
±3°F (±2°C) within -4° to 212°F (-20° to 100°C)
±2% within 212° to 999°F (100° to 535°C)
Thermopile: 5 ~ 14µm
Repeatability: ±2°F (±1°C)
Resolution: 0.1°F (0.1°C)
Response Time: 500 ms.