Galaxy Audio Check-Mate CM-140 사용 설명서 - 페이지 10

{카테고리_이름} Galaxy Audio Check-Mate CM-140에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Galaxy Audio Check-Mate CM-140 12 페이지. Sound level

(3) Do not store or operate the instrument at a high

temperature or in a high humidity environment.

(4) Keep microphone dry and avoid severe vibration.

(5) Take out the battery and keep the instrument in a low

VIII. Measurement

(1) Open battery cover and install a 9V battery in the

battery compartment.

(2) Turn power ON and select the desired response time

and weighting. If the sound source consists of short

bursts or only catching sound peak, set response to

FAST. To measure average sound level, use the

SLOW setting.

Select A- weighting for general noise sound level and

C-weighting for measuring sound level of acoustic

material.

(3) Select desired level.

(4) Hold the instrument comfortably in hand and point the

microphone at the suspected noise source. The sound

pressure level will be displayed.

(5) When MAX/MIN (maximum, minimum hold) mode is

chosen, the instrument captures and holds the

maximum and minimum noise level for a long period

using any of the time weightings and ranges.

Press the MAX/MIN button 2 seconds to clear the

MAX/MIN reading. " MAX/MIN " symbol disappears.

(6) Turn OFF the instrument.

CM-140 SPL METER