OMEGA OSK2K1686REVA-ROHS Sound Level Meter (75-130 dB)

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).