Minimum Measurable Dew Points; Figure 24 Miniumum Measurable Dew Points - Kahn Optisure Remote User Manual

Optisure Remote User's Manual
Log files are saved in CSV (comma separated value) format. This allows them to be
imported easily into Excel or other programs for charting and trend analysis. To set-up
data logging refer to Section 3.2.2.
4.5.7

Minimum measurable dew points

The minimum dew point that can be measured is determined by the sensor temperature,
and whether the sensor can be maintained at that temperature. The following chart
assumes operation in a climatic chamber, where air speed is sufficient to remove any
excess heat generated by the sensor.
The minimum measurable dew point also varies depending on the sensor head material.
More thermally conductive heads conduct heat away from the mirror and reduce the
depression limit. Figure 24 shows the difference between the two types.
100
90
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
90
Kahn Instruments
S8000 Remote - Dew-Point Measurement Range
80 70 60 50
Sensor Body Temperature ºC
Figure 24 Miniumum Measurable Dew Points
40 30 20 10
OPERATION
Aluminum
Standard Acetal
0 -10 -20 -30
31