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6. OPERATING INSTRUCTION
Measuring Sound Level
1. Set the function switch to the green "dB" position.
2. Remove the meter and face the microphone to sound
source in a horizontal position.
3. The C-weighting curve is nearly uniform over the frequency
range from 30 to 10,000Hz, thus giving an indication of
overall Sound level.
4. The Fast response is suitable to measure shout bursts
and peak values from sound source.
5. The sound level will be displayed.
6. Note: Strong wind (over 10m/sec.) striking the
microphone can cause misreading for measurement in
windy locations, a windscreen should be used in front of
microphone.
Measuring Humidity
1.
Humidity Measurement for indoor:
2.
Set the function switch to the ON position.
3.
Remove the meter place to the room.
4.
Read the %RH in the display for about two hours.
Measuring Light
1.
Set the function switch to the green "lux" scale and set
the range to desired ("lux" or "x10 lux") range.
2.
Remove the meter and face the photo detector to light
source in a horizontal position.
3.
Read the illuminance nominal from the LCD display.
4.
Over-range: If the instrument only display one "1" in the
M.S.D. the input signal is too strong, and a higher range
should be selected.
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