AutoTest® Acoustic Calibrator
AutoTest® Acoustic Calibrator
The AutoTest Acoustic Calibrator is used for calibration of sound level meters, generating a signal with a sound pressure level of 104dB at 250Hz. The Acoustic Calibrator is a battery-operated instrument and easy to use in the field. The Acoustic Calibrator is suitable for use with a ½ inch microphone.
- Compact, hand-held battery powered instrument
- Generates a signal with a sound pressure level of 104dB at 250Hz
- Easy to use in the field
- Suitable for use with a ½ inch microphone
- Suitable for calibrating the AutoTest Digital Sound Level Meter.
| Applicable standards | IEC 60942: 2003 Class 2 |
| Method | Dynamic speaker |
| Applicable microphone | ½ inch microphone |
| Generated sound pressure level | 104dB ± 0.5 |
| Distortion rate | 0.5% or less |
| Generated frequency | 250Hz ± 1% |
| Output stabilizing time | 15 seconds or less after a microphone is inserted |
| Operating temperature range | -10 to +50oC |
| Storage temperature range | -20 to +60oc (not including batteries) |
| Operating humidity range | 25 to 90% RH (with no condensation) |
| Storage humidity range | 10 to 90% RH (with no condensation) |
| Power | 9V battery PP3 x 1 |
| Battery life | Approximately 20 hours or more of continuous operation (when using PP3 type dry cell batteries at 25oC) |
| Outer dimensions | 60(H) x 10(D) mm |
| Weight | Approximately 200g |
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