User manual

10 Capricorn II Plus User Manual
B. SPECIFICATIONS
Temperature
Display: Either Fahrenheit or Celsius via a slide switch on the front panel for three
Function Modes; indoor only, outdoor only, or four-second alternating.
Sample Rate: “Indoor” and “outdoor” temperatures are sampled for 0.5 seconds
every 1.5 seconds, followed by a comparison of two sequential readings. If
they differ, a third reading is taken. In all, eight 0.5-second samples are taken,
averaged and output to the display. In the Operating Mode, the display is
updated every 12 seconds. The Calibrate Mode does not average, so the
display is updated every 1.5 seconds.
Display Resolution: 1
o
F or C; 0.2
o
F (0.1
o
C) Calibrate Mode.
Range: -67
o
to 140
o
F (-55
o
to 60
o
C).
Accuracy: +/- 1.0
o
F (0.5
o
C) or better from 20
o
to 105
o
F (-7
o
to 41
o
C); calibrated at
32.0
o
F.
+/- 2.0
o
F (1.0
o
C) or better from -67
o
to 140
o
F (-55
o
to 60
o
C).
Chill Factor Temperature
Definition: The still-air temperature that would have the same cooling effect on
exposed skin as a given combination of wind and temperature. Please refer to
Addendum: Wind Chill Algorithm.
Display: Replaces normal temperature display via a front panel slide switch.
Range: -99
o
F to 91
o
F (-99
o
C to 33
o
C).
Relative Humidity
Display: Unit-less percentage
Sample Rate: Relative Humidity is sampled for 0.5 seconds every 1.5 seconds,
followed by a comparison of two sequential readings. If they differ, a third reading is
taken. In all, eight 0.5-second samples are taken, averaged, and output to the
display. In the Operate Mode, the display is updated every 12 seconds. The Cali-
brate Mode does not average, so the display is updated every 1.5 seconds.
Accuracy: +/-5% or better at 25° C for a range of 20% to 95% RH
Display Resolution: 1% RH, 0.1% RH is Calibration Mode Range: 0 to 99% RH in a
non-condensing -40° to +130° F temperature range.
Barometric Pressure
Display: Either millibars or inches of mercury (in. Hg), via a slide-switch on the back
panel.
Sample Rate: One 0.5-second sample is taken every 1.5 seconds, followed by a
comparison of two sequential readings. If they differ, a third reading is taken.
In all, eight 0.5 second samples are taken, averaged and output to the display.