9 ºc – Sper Scientific 850021 Anemometer RH Pen User Manual
Page 5
SPECIFICATIONS
12
Humidity & Dew Point
Range
10% to 95% R.H,
Resolution
0.1 % R.H.
Accuracy
≥ 70% RH
± (3% reading + 1% RH)
< 70% RH - 3% RH
± 3% RH
Humidity
Dew point
*
ºC
Range
-25.3 ºC to 48.9 ºC
Resolution
0.01 ºC
ºF
Range
-13.5 ºF to 120.1 ºF
Resolution
0.01 ºF
The Dew point display value is automatically calculated
from the Humidity and Temperature measurements. Dew
point accuracy is directly dependent upon the accuracy of
the Humidity and Temperature measurements.
*
Mode Selection
1. Turn on the meter by pressing the Power button To
turn the meter off, press the Power button again.
2. The meter has three modes that can be selected:
3. Press the Mode button for at least 2 seconds and both
the upper and lower values will start to flash (see dia-
gram below). Use the ▲ button to switch the upper dis-
play unit, and use the
button to switch the lower dis-
play unit. Then press the button to accept the se-
lected units.
*
%RH
60.9
25.9 ºC
Value Flashing
Value Flashing
MEASURING PROCEDURE
a. Humidity / Temperature
b. Humidity / Dew Point
c. Anemometer / Temperature
The most recent settings are stored when the power is
turned off, and displayed again when power is turned back
on.
5
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