Two highly accurate thermometers are mounted inside;one wet bulb thermometer determines relative
Two highly accurate thermometers are mounted inside; one wet bulb thermometer determines relative humidity. The bulb end is covered with a cotton wick which is saturated with water before the unit is turned on. The other thermometer is a so-called dry bulb thermometer that has been painted with a high emissivity (heat attracting) black coating at the end to measure radiation temperatures.
Both lie in a channel through which air is circulated by means of a battery operated fan motor. This circulation removes evaporated moisture from the wet bulb thermometer wick depending on the amount of moisture in the air.
A plexi-glass window above the black dry bulb, exposes it to impingements from any thermally radiated source; i.e.: Sun rays, incandescent lamps, fires, reflecting surfaces and electrical energy.
CAT NO.
MODEL
DEscRIPTION
AVAIL
PRICE
ET87669
22052
HEAT STRESS PSYCHROMETER
Yes
356,400
ET87670
80052
OPTIONAL MATCHED THERMOMETERS (2) FOR Heat Stress Psychrometer
Yes
84,240
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