2
III. SPECIFICATIONS
Standard applied: IEC651 Type2, ANSI S1.4 Type2.
Frequency range: 31.5Hz ~ 8KHz
Measuring level range: 30 ~ 130dB
Frequency weighting: A / C
Microphone: 1/2 inch electret condenser microphone
Display: LCD
Digital display: 4 digits
Resolution: 0.1dB
Display Update: 0.5 sec.
Analog display: 50 segment bargraph
Resolution: 1dB
Display Update: 50 mS
Time weighting: FAST (125mS), SLOW (1 sec.)
Level ranges: Lo: 30 – 80 dB
Med: 50 – 100 dB
Hi: 80 – 130 dB
Auto: 30 – 130 dB
Accuracy:
±
1.5dB (under reference conditions @ 94dB, 1KHz)
Dynamic range: 100 dB (50 dB model 732A)
Alarm function: “OVER” is when input is more than the upper limit of range.
“ UNDER ” is when input is less than the lower limit of range.
MAX/MIN hold: Holds readings the Maximum and Minimum Value.
AC output: 1 Vrms at FS (full scale).
Output impedance: Approx. 100
Ω
FS: means the upper limit of each level range.
DC output: 10mV / dB, output impedance approx. 1K
Ω
Power supply: One 9V battery, 006P or IEC 6F22 or NEDA 1604.
Power life: About 50hrs (alkaline battery)
AC adapter: Voltage 9 VDC, center pin negative, (8-15VDC Max)
Supply current : > 30mADC Socket : pin
→
Ground
Casing
→
Positive
E xternal Diameter
→
3.5mm
Internal Diameter
→
1.35mm
Electromagnetic Compatibility:
RF field = 3V/m
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