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Extech 407766 94/114dB Sound Calibrator with NIST
Item #:
EXT-407766-NIST
Brand:
Extech
Share this product:
407766 94/114dB Sound Calibrator with NIST by Extech
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
- Meets IEC standard 60942 1997-11
- Complete with two 9V batteries, carrying case, and screwdriver
- LED indicator lights up when power is on
- Level position to select 94dB or 114dB
- 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and ±0.8dB
- 3 position switch (OFF/94dB/114dB)
| Output signals | 407744: 94dB 407766: 94dB and 114dB |
| Output signal accuracy | 407744: ± 0.5dB; 407766: ± 0.5dB (94dB), ±1.0dB (114dB) |
| Output signal frequency | 1 KHz sine wave |
| Accuracy of output signal frequency | ± 5% |
| Compatible microphones size | 0.5" microphones |
| Total Harmonic Distortion (THD) | <2%@94dB (407744 and 407766) <5%@114dB (407766) |
| Operating temperature | 32 to 122°F (0 to 50°C) |
| Power supply | Two (2) 9V batteries |
| Power consumption | Approx. 10mA DC |
| Battery check | Status LED |
| Dimensions | 2.2" diameter x 5.6" length (50 x 127mm) |
| Weight | 0.75 lbs. (340g) |
| Standards meets | IEC 60942 1997-11 class 2 |
| Standards | Meets IEC 60942 1997-11 class 2 |
