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9 ºc – Sper Scientific 850021 Anemometer RH Pen User Manual

Page 5

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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

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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.

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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.

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%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.

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