2.1.2. Transducer Selection
TEMPERATURE:
Air:
Surface:
RADIATION:
Pl. Rad. Temp:
Asymmetry:
Incident Power:
10
The transducer selection section consists
of
ten pushkeys which are divided into four
groups.
Mean
Std.
Rei. Vap. O.W·
Value
Dev
.
Hum
. Pres.
point
Fig. 2.2. Transducer selection
controls
of
the
Indoor
Climate
Analyzer
Type 1213
Two pushkeys with LEOs
for
selecting either air
or
surface
temperature.
Selects input from the
Air
Temperature Transducer
for
measuring,
dis-
playing and recording.
Selects input from the Surface Temperature Transducer
for
measuring,
displaying and recording.
Three pushkeys with LEOs
for
selecting plane radiant temperature, ra-
diant temperature asymmetry and incident radiant power measure-
ments from the Radiant Temperature Asymmetry Transducer input.
Selects plane radiant temperature measurement. The Radiant Tem-
perature Asymmetry Transducer has two
identical measuring faces,
one
labelled
"A"
and the other "B". Both values
of
plane radiant tem-
perature are
simultaneously measured and displayed.
Pushkey to calculate the difference between the two measured values
of
plane radiant temperature providing a measurement
of
the radiant
temperature asymmetry. The
displayed value is
A-
B.
The difference
between the incident radiant power (the incident power asymmetry) is
also displayed.
Note: Pressing the pushkey a second time causes this difference
to
be
displayed as a
bar-graph.
See Fig. 2.5.
Pushkey
to
calculate the incident radiant power on each face
of
the
Radiant Temperature Asymmetry Transducer.
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