Infrared Digital Thermometers
Infrared thermometers are designed for applications    requiring users to instantly measure temperature in                ...
Temperature measurement    • Contact Type Thermometers        – Uses temperature probes / thermo-couples        – Highly a...
Why IR thermometers - 3 main reasons    • Safety        –   From high temperature objects        –   From high voltages (t...
Important Parameters – IR Thermometers    •   Emissivity    •   A numerical value between 0 and 1 which indicates the abil...
Important Parameters – IR Thermometers •   DISTANCE TO SPOT RATION      Ratio of the distance from the measured object vs....
Important Parameters – IR Thermometers     FIELD OF VIEW     - Field of view refers to the target size relative to the IR ...
HOW DOES IR THERMOMETER WORK  Infrared thermometers measure the surface  temperature of an opaque object  The thermometer’...
IMPORTANT SPECIFICATIONS   FOR SELECTION OF RIGHT IRTHERMOMETER     • Temperature range     • Measurement accuracy     • D...
OPERATING THE IR THERMOMETER  •   To measure temperature, point the thermometer at an object and pull the trigger.  •   La...
SAFETY PRECAUTIONS  •   Before using the thermometer inspect the case. Do not use the thermometer if it appears      damag...
• Company Name : Fluke Corporation - India• Website: http://www.fluke.com/fluke/inen/home/default.htm• Address: Division o...
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Basics of Temperature Measurement

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Fluke offers the latest in non-contact infrared (IR) thermometers (sometimes known as infrared pyrometers) and contact thermometers, probes, accessories, and application expertise for a complete range of temperature applications. Fluke backs all of its handheld thermometers with a no-hassle 2-year warranty and the highest level of customer service.

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  • In harsh environments where fixed or <a href="http://www.fluke.com/fluke/inen/Thermometers/Food-Pro.htm?PID=56223" title="contact thermometer">contact thermometers</a> are unable to meet your requirements, an <a href="http://www.fluke.com/fluke/inen/products/Thermometers.htm" title="infrared thermometer">Infrared thermometer</a> is the better solution. Noncontact IR thermometerallows you to stay a safe distance from the object and get the most accurate readings across a wide range of temperatures.
  • Basics of Temperature Measurement

    1. 1. Infrared Digital Thermometers
    2. 2. Infrared thermometers are designed for applications requiring users to instantly measure temperature in hard-to-reach areashttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    3. 3. Temperature measurement • Contact Type Thermometers – Uses temperature probes / thermo-couples – Highly accurate, good for Lab / calibration work • Non-Contact Thermometers – Uses Infra Red beams to measure surface temperature – Moderate accuracy for day to day workhttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    4. 4. Why IR thermometers - 3 main reasons • Safety – From high temperature objects – From high voltages (temperature at circuit breakers terminals, bus-bars) – Moving objects - Rotating motors, conveyors, belts • Hard to Reach – Object mounted at heights – Object mounted inside safety perimeter – Objects at hard to reach places • Convenience – IR thermometer is easy to use – Just point-shoot-measurehttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    5. 5. Important Parameters – IR Thermometers • Emissivity • A numerical value between 0 and 1 which indicates the ability of an object to emit infrared energy. • Emissivity is determined primarily by the material from which an object is constructed and its surface finish. • Examples: – Polished brass: 0.03 – Roughly polished copper: 0.07 – Black lacquer paint: 0.96 – Circuit boardshttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    6. 6. Important Parameters – IR Thermometers • DISTANCE TO SPOT RATION Ratio of the distance from the measured object vs. sampling spot size EXAMPLES: - 4:1 optical resolution: 4” away from measured object 1” diameter - 12:1 optical resolution: 24” away from measured object 2” diameter • OBJECT SIZE Know your application! An IR device with a 4:1 optical resolution can not effectively be used to measure a diffuser temperature 15’ away.http://www.fluke.com/fluke/inen/products/Thermometers.htm
    7. 7. Important Parameters – IR Thermometers FIELD OF VIEW - Field of view refers to the target size relative to the IR thermometer’s spot size . - Ideally, the target surface to be measured should be twice the size of the spot . - If the spot size is larger than the surface to be measured, measurement errors are increased . - Spot size calculator www.Fluke.Comhttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    8. 8. HOW DOES IR THERMOMETER WORK Infrared thermometers measure the surface temperature of an opaque object The thermometer’s optics sense emitted, reflected, and transmitted energy, which is collected and focused onto a Detector The unit’s electronics translate the information into a temperature reading which the unit displayshttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    9. 9. IMPORTANT SPECIFICATIONS FOR SELECTION OF RIGHT IRTHERMOMETER • Temperature range • Measurement accuracy • Distance to Spot Ratio • Rugged & Reliable • Response time • Display resolution • Battery lifehttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    10. 10. OPERATING THE IR THERMOMETER • To measure temperature, point the thermometer at an object and pull the trigger. • Laser pointer to help aim the thermometer • To find a hot or cold spot, aim the thermometer outside the desired area. • As the distance from the object being measured increases, the spot size of the area measured by the unit becomes larger • For accurate measurements, make sure that the target is larger than the unit’s spot size • The display retains its last infrared measurement for twenty seconds when the trigger is released, with HOLD appearing on the display • The stored data can be downloaded to a personal computer (PC) via the included USB cable and the included Fluke View Forms Documenting Softwarehttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    11. 11. SAFETY PRECAUTIONS • Before using the thermometer inspect the case. Do not use the thermometer if it appears damaged. Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors • Disconnect the thermocouple(s) from the thermometer before opening the case • Replace the batteries as soon as the battery indicator appears. The possibility of false readings can lead to personal injury • Do not use the thermometer if it operates abnormally. Protection may be impaired. When in doubt, have the thermometer serviced / calibrated at authorized labs. • Reflective objects result in lower than actual temperature measurements. These objects pose a burn hazard Do not operate the thermometer around explosive gas, vapor, or dusthttp://www.fluke.com/fluke/inen/products/Thermometers.htm
    12. 12. • Company Name : Fluke Corporation - India• Website: http://www.fluke.com/fluke/inen/home/default.htm• Address: Division of DHR Holding India Pvt. Ltd. 10th Floor, Sigma Hiranandani Business Park, Powai Mumbai, Maharashtra 400076• Contact Number: 1 800 209 9110http://www.fluke.com/fluke/inen/products/Thermometers.htm
    13. 13. Thank You
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