6. Operating Instruction
6-1 Measuring Sound Level
•Set the function switch to the green "dB" position.
•Remove the meter and face the microphone to sound source in a horizontal
position.
•The C-weighting curve is nearly uniform over the frequency range from 30 to
10,000Hz, thus giving an indication of overall Sound level.
•The Fast response is suitable to measure shout bursts and peak values from
sound source.
•The sound level will be displayed.
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.
6-2 Measuring Humidity
•Humidity Measurement for indoor.
•Set the function switch to the ON position.
•Remove the meter place to the room.
•Read the %RH in the display for about two hours.
6-3 Measuring Light
•Set the function switch to the green "Lux" scale and set the range to desired
("Lux" or "x10 Lux") range.
•Remove the meter and face the photo detector to light source in a horizontal
position.
•Read the illuminance nominal from the LCD display.
•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.
•When the measurement is completed. Replace the photo detector from the
light source.
•Spectral sensitivity characteristic: To the detector, the applied photo diode
with filters makes the spectral sensitivity characteristic almost meet CIE.
(International Commission on Illumination) photopia curve V (
λ
) as the
following chart described.
Recommended Illumination:
Locations
Lux
*Office
Conference, Reception room.
200 to 750
Clerical
work
700
to
1,500
Typing
drafting
1000
to
2,000
*Factory
Packing work, Entrance passage
150 to 300
Visual work at production line
300 to 750
Inspection
work
750
to
1,500
Electronic parts assembly line
1500 to 3,000
*Hotel
Public room, Cloakroom
100 to 200
Reception,
Cashier
200
to
1,000
*Store
Indoors Stairs Corridor
150 to 200
Show window, Packing table
750 to 1,500
Forefront of show window
1500 to 3,000
*Hospital
Sickroom,
Warehouse
100
to
200
Medical Examination room
300 to 750
Operating room Emergency Treatment
750 to 1,500
*School
Auditorium, Indoor Gymnasium
100 to 300
Class
room
200
to
750
Laboratory Library Drafting room
500 to 1,500
ELCART DISTRIBUTION SPA via Michelangelo Buonarroti, 46 - 20093 Cologno Monzese (Milano) ITALY
Tel. ++39(0)2/25.11.73.10 Fax ++39(0)2/25.11.76.10 sito internet: www.elcart.com e-mail: [email protected]
La divulgazione dei dati contenuti in questa scheda è da ritenersi un servizio puramente informativo e non costituisce alcun vincolo da parte della Elcart in merito a prestazioni ed utilizzo del prodotto.
