Lutron SC-934 Multi-Frequency Sound Level Calibrator 94-114dB

Lutron SC-934 Multi-Frequency Sound Level Calibrator, 94/104/114 dB

The Lutron SC-934 is an acoustic calibrator for checking and adjusting sound level meters. It produces three output levels — 94, 104 and 114 dB — and four output frequencies, so it can verify a meter's linearity and its frequency weighting response rather than just a single reference point. Red LED indicators show the selected level and frequency. The coupler accepts 1" microphones directly, and a 0.5" adapter is included for half-inch microphones.

• Four output frequencies: 125 Hz, 250 Hz, 500 Hz and 1 kHz.
• Three output levels: 94, 104 and 114 dB.
• Standard 94 dB at 1 kHz reference output.
• Multiple output levels allow a sound level meter's linearity to be checked.
• Multiple output frequencies allow a sound level meter's frequency weighting response to be checked.
• Red LED indicators for the selected frequency and level.
• Fits 1" microphones directly; also includes a 0.5" microphone adapter (usually already installed) and 0.25" microphone adapter.
• Built-in low battery indicator.
• Compact, portable housing supplied with a hard carrying case.

Specifications

• Frequency: 125 Hz, 250 Hz, 500 Hz, 1 kHz, ± 2%.
• Sound pressure level: 94 dB, 104 dB, 114 dB, ± 0.5 dB.
• Harmonic distortion: ± 2% on the 94 dB range.
• Suitable microphone types: 1" and 0.5". A 0.5" microphone is calibrated using the supplied 0.5" adapter.
• Operating temperature: 0 to 50 °C (32 to 122 °F).
• Operating humidity: less than 80% RH.
• Operating atmospheric pressure: 65 kPa to 108 kPa.
• Power supply: DC 9V battery (006P, 6F22) x 1 pc. Alkaline or heavy duty type recommended.
• Power consumption: approximately DC 8 mA when switched on.
• Low battery indicator: built-in LED.

Specifications are tested in an environment with RF field strength less than 3 V/m and frequency less than 30 MHz.

Dimensions

• Calibrator: 124 x 63 x 40 mm (4.9 x 2.5 x 1.6").

Weight

• Calibrator: approximately 277 g (0.61 lb), meter only.

Accessories Included

• Instruction manual.
• 0.5" microphone adapter (usually installed).
• 0.25" microphone adapter.
• Carrying case, CA-03.

Appearance and specifications are subject to change without notice. 190808-SC-934