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Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999.
Low battery indication: The “ ” is displayed when the
battery voltage drops below the operating level.
Measurement rate: One times per second, nominal.
Operating Environment: -10°C to 50°C at < 90% RH.
Storage Temperature: -20°C to 60°C, 0 to 80% R.H.with battery removed from meter.
Battery: 4 pcs 1.5V (AAA size) UM-4 R03.
Battery Life: 50 hours.
Dimensions: 217mm(H) x 44mm(W) x 40mm(D)
Weight: 168g including batteries.
Accessories: Windscreen x1, Battery x4, Plug x1, Tripod mounting screw-nut x1, Carrying case x1.
ELECTRICAL
Applicable Standard:
IEC 651-1979 Type 2
ANSI S1.4-1983 Type 2
JIS C 1502
Measurement Range:
Lo - range 37-90 dB
Hi - range 75-130 dB
Resolution: 0.1dB.
Frequency Weighting: A and C according to IEC 651 Type 2.
Frequency Range: 31.5 Hz to 8000 Hz.
Detector: True-RMS with independent frequency weightiness.
Dynamic Range: 55dB.
Maximum Hold decay time: <1dB/3minute with Reset switch.
Time Weighting: S(SLOW) and F(FAST) according to IEC 651 Type 2.
Microphone: 1/2” electret(prepolarized) condenser microphone.
DC Output:
Output - 10 mV/dB.
Output Impedance - 50Ω approx.
AC Output: Output -1.0V RMS corresponding to the top of the selected measurement range. Output Impedance - 600Ω approx.
Warm-up: <5s.
Calibration Conditions:
Reference Frequency: 1000Hz.
Reference SPL: 94 dB.
Reference Temperature: 20°C.
Reference RH: 65%.
Reference Range: 75-130dB.
Reference Direction of incidence: Frontal.
Environmental Effects
Effect of Temperature: <0.5dB (-10°C to 50°C).
Effect of Humidity: <0.5dB for 30% <RH<90%.(at 40°C, 1KHz).
