Ti20
Users Manual
Stare
A saturation effect caused by aiming a sensor at a hot target for an extended period of time and then quickly aiming at a target at a lower temperature. The increase in time (beyond the normal system response) for the sensor to return to within 5 % of the lower temperature is defined as the stare time.
Storage Temperature Range
Ambient temperature range that the thermometer can safely withstand in a
Target
The object upon which the temperature determination is being made.
Temperature
A degree of hotness or coldness of an object measurable by a specific scale; where heat is defined as thermal energy in transit, and flows from objects of higher temperature to objects of lower temperature.
Temperature Coefficient (or Ambient Derating)
An indication of the instruments ability to maintain accuracy when the ambient conditions are subject to a slow change or drift. The temperature coefficient is usually expressed as the percent change in accuracy per degree change in ambient temperature. For a rapid change in ambient conditions refer to Thermal Shock.
Temperature Resolution
The minimum simulated or actual change in target temperature that gives a usable change in output and/or indication (per the ASTM standard test method E
Thermal Shock
A
Time Constant
The time it takes for a sensing element to respond to 63.2% of a step change at the target.
Transfer Standard
A precision radiometric measurement instrument with NIST traceable calibration in the USA (with other recognized standards available for international customers) used to calibrate radiation reference sources.
Transmittance
The ratio of IR radiant energy transmitted through an object to the total IR energy received by the object for any given spectral range; the sum of emittance, reflectance, and transmittance is unity.