Extech Digital Psychrometer Infrared Thermometer Temperature can be measured using a wide variety of sensor types. Some of the more common types foun


Temperature can be measured using a wide variety of sensor types. Some of the more common types found in manufacturing plants are thermocouples and RTDs (resistive temperature devices) contact and infrared non-contact measurement.

Infrared Non-Contact Measurement
All objects emit infrared energy, and the hotter an object is, the more active its molecules are, and the more infrared energy it emits. Infrared thermometers sense emitted, reflected, and transmitted energy from an object and translate this information into a temperature reading. Energy passes through the infrared thermometer’s optical system and is converted to an electrical signal, which is then converted and displayed as a temperature reading.

Infrared thermometers offer some distinct advantages over contact thermometers, since they can measure temperature without physically touching the object. Infrared temperature measurement is ideal for measuring objects that:
  • Are too far or to difficult to reach
  • Require non-contamination from one reading to the next
  • Are moving, rotating or vibrating
  • Are too time consuming for contact sensors and require quick temperature measurements
  • Have high temperatures up to 3,000 F
  • Can be scratched or damaged by physical contact
  • Have curved, distorted or varying surface conditions
  • Are too thin and soft for contact sensors
  • Are too hot to touch or approach
  • Are electrically active and too dangerous to touch ( by Pete Leal)
Description of Extech RH405 Digital Psychrometer IR Thermometer Kit:
Extech RH405 Digital Psychrometer IR Thermometer Kit includes: RH401 Digital Psychrometer, 33% to 75% calibration bottles, PC cable and carrying case.

See more RH401 Digital Psychrometer Infrared Thermometer Datasheet

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