Scene temperatures between 0
8
C
(32
8
F) and 500
8
C (932
8
F) can be
displayed. If the temperature lies
outside this range a
4
or
5
symbol
appears before the reading indicating
that it is outside the possible range.
Note that if the object in the scene
does not fully fill the sample window
then a false reading may be obtained.
Care should be taken not to cover up
the sensor window (with a hand for
example) when using this system.
1.7.2
Ambient Temperature
&
The ambient temperature sensor plugs
into the RS 232 computer test point
on the front of the camera and the
ambient temperature is displayed on
the video as for the scene temperature
above. The range for ambient
temperature measurement is 0
8
C
(32
8
F) to 150
8
C (302
8
F). If ambient
temperature measurement is not
required the sensor can be unplugged
and the readout display will
automatically be removed from the
video.
Specification
Range . .
spot/scene temperature
0
8
C to 500
8
C
(32
8
F to 932
8
F)
Ambient
. . . .
0
8
C to 150
8
C
(32
8
F to 302
8
F)
Accuracy:
spot (see note)
.
+
2
8
C or
+
2%
(whichever is the greater)
ambient . . . .
+
2
8
C or
+
5%
(whichever is the greater)
Power consumption . .
negligible
This option has no
significant effect on
the battery life of
the camera.
Note
the sensor assumes that the
object in the scene has an emissivity of
0.95. The readings may be inaccurate
when viewing shiny metal or glass
objects.
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