ESPEC BTL-433, Инструкция по эксплуатации

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Criterion Series Benchtop User’s Manual
48
Temperature Rate of Change
Cooling
The time required for the temperature to change from a
defined temperature t1 to a defined lower temperature t2.
This is simply the time required for the drop in temperature
and does not include the time it takes for the temperature to
stabilize.
t 1
t 2
Tem
perat
ure
Time
Temperature
pull-down rate
Fig. 8.3 Temperature Pull-down Rate
Temperature Range
The range of temperatures that can be reproduced inside the
chamber.
Temperature Gradient
The difference in temperature between the highest and
lowest temperature within the working space after
stabilization.
Test Chamber
A contained ambient constructed so as to obtained a desired
temperature and humidity.
Wet-bulb Temperature
The temperature measured by a temperature sensor on
which a wet cloth has been draped. It is used to measure
humidity. Relative humidity is calculated from this
temperature and the air temperature measured by a dry-bulb
sensor.
Wet-bulb Wick
The cloth draped over a wet-bulb temperature sensor. It
absorbs water and keeps the sensor wet. Though gauze is
used in meteorological applications, a woven cloth is used
inside an environmental test chamber because of its strong
resistance to heat and cold.