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407722 Datasheet, PDF (1/1 Pages) Extech Instruments Corporation. – Sound Level Calibrator
Sound Level Calibrator
Combination 94dB/114dB, 1kHz Professional Calibrator
for 0.5" or 1.0" Microphones
With durable double-molded housing
Features:
• Calibrates and verifies Sound Level Meter operation
• For use on Sound Level Meters with 0.5" or 1.0" microphones
• Total Harmonic Distortion (THD) <2% at 94dB
• 1kHz sine wave at 94dB/114dB is generated to an
accuracy of 4% (frequency)
• 3 position switch (OFF/94dB/114dB)
• Meets IEC 9042 Class 2
• Complete with 9V battery
Specifications
Frequency
Sound Pressure Level
Distortion
Operating Temperature
Power Supply
Power consumption
Dimensions
Weight
Range
1000 Hz
94dB/114dB
<2% Total Harmonic Distortion (THD)
32 to 122°F (0 to 50°C)
One alkaline 9V battery
Approx. 10mA DC
4.7 x 2 x 1.7” (120 x 51 x 43mm)
4.5oz (130g)
Accuracy
±4%
±0.5dB (94dB), ±1dB (114dB)
Ordering Information:
407722....................Sound Level Calibrator, 94/114dB
www.extech.com
Specifications subject to change without notice.
1/27/14 - R1
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