SC-2120A |
For microphone calibration, a sound pressure calibrator
(piston-phone type or speaker type) that generates
predetermined sound pressure is used.
The SC-2120A is a speaker type sound calibrator and used for an operation checking of sound measurement system etc. It is applicable to IEC 60942:2003 Class 2, JIS C1515:2004 Class 2.
Features
Outline of specifications
| Model | SC-2120A |
|---|---|
| Applicable standards | IEC 60942: 2003 Class 2 JIS C1515: 2004 Class 2 |
| Method | Dynamic speaker |
| Applicable microphone | 1/2-inch microphone (MI-1233/1234/1431/1432) |
| Generated sound pressure level | 94 ± 0.5 dB |
| Distortion rate | 0.5 ％ or less |
| Generated frequency | 1000 Hz ±1.0 % |
| Output stabilizing time | 30 seconds or less after a microphone is inserted. |
| Operating temperature range | -10 to +50 °C |
| Storage temperature range | -20 to +60 °C (not including batteries) |
| Operating humidity range | 25 to 90 %RH (with no condensation) |
| Storage humidity range | 10 to 90 %RH (with no condensation) |
| Power | 9-V battery: 6F22 or 6LR61 × 1 |
| Battery life | Approx. 20 hours or more of continuous operation (when using 6F22 type dry cell batteries at 25 °C) |
| Outer dimensions | 52(W) × 45(H) × 130(D) mm |
| Weight | Approx. 300 g |
| Accessories |
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Revised:2009/06/30
