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.
|Applicable standards||IEC 60942: 2003 Class 2|
|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|
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