ATP Electronics ET-933, Руководство пользователя

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3
3. Specifications
Applied standard
Frequency range 31.5Hz
～
8kHz
Dynamic range 50dB
Measuring level
range
Lo
：
30dB
～
80dB Med
：
50dB
～
100dB
Hi
：
80dB
～
130dB Auto
：
30dB
～
130dB
Accuracy ±1.4dB
Time weighting FAST: 125ms – SLOW: 1s
Microphone 1/2 inch electret condenser microphone
Display 3½ digits LCD display with a resolution of 0.1dB
Frequency weighting A & C
Data update 2 times per second
Alarm function “OVER” – input is more than upper range limit.
“UNDER” – input is less than lower range limit.
Auto power off Meter automatically shuts down after approx. 15
minutes inactivity.
Power supply 1x 9V battery, 006P or IEC 6F22 or NEDA 1604.
Battery life at least 30 hours
Operating conditions -20
℃
～
60
℃
，
10
％
RH
～
90
％
RH
Storage conditions -20
℃
～
60
℃
，
10
％
RH
～
75
％
RH
Weight 178g
Dimension(L*W*H) 158 x 62 x 32mm