BRUEL & KJAER 1212 Instruction Manual

Instruction Manual
Thermal Comfort Meter Type 1212
A portable instrument for measuring the ef-
fect of the thermal environment on human
comfort by simulating the thermal balance
of the human body. It consists of a heated
Transducer having the same ratio of
con-
vective to radiant heat emittance as a hu-
man body, and similar directional character-
istics. The Transducer surface is heated to
the same temperature as the clothing of a
person clothed as set on the controls of the
instrument. The heating power supplied to
the Transducer is then used to compute
electronically PMV, PPD and other quanti-
ties related to comfort. The Thermal Com- .
fort Meter has a liquid-crystal digital display
and three outputs suitable for feeding to a
recorder. It is designed for taking measure-
ments quickly and easily on site. It may be
powered from built-in batteries, an optional
slide-in mains power supply, or an external
DC supply.
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Brliel &
Kjcer