4
Level ranges: LO : 30dB~80dB Med :
50dB~100dB
Hi:80dB~130dB
Auto:30dB~130dB
Frequency weighting: A/C
Time weighting: FAST ( 125ms ), SLOW ( 1s )
Microphone: 1/2 inch electret
condenser microphone
Display: 4 digits LCD display with a resolution of
0.1dB
Display Update: 2 times/sec.
MAX hold: Hold the Maximum reading MIN
hold: Hold the Minimum reading HOLD:
Hold the readings
Alarm function: “OVER”is when input is more than
upper limit of range.
“UNDER”is when input is less than upper limit of range.
Analog output : AC/DC outputs from earphone outlet
AC=1Vrms ,DC=10mV/dB
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