Perbesar Gambar| Fungsi : Alat ukur kebisingan suara. |
| Spesifikasi : | |||
| ▪ | Range | : | A-weighting 30 ~ 130 dB |
| : | C-weighting 35 ~ 130 dB | ||
| ▪ | Resolution | : | 0.1 dB |
| ▪ | Frequency | : | A.C. 31.5 ~ 8, 000 HZ |
| ▪ | Microphone | : | Electret condenser microphone. |
| ▪ | Attenuator | : | 30 ~ 80 dB, 50 ~ 100 dB, 80 ~ 130 dB |
| : | 50 dB on each step , with over/under range alarm. | ||
| ▪ | Response | : | fast, slow, max-hold Decay0.2dB/ 2mm |
| ▪ | Calibration | : | Internal oscillation system. |
| : | ( 1 KHZ square wave generator, 94dB) | ||
| ▪ | Display | : | 3½ digital L.C.D. display. |
| : | Output : AC 0.5Vrms corresponding to each step, | ||
| : | impedance 600© : DC 0.3 ~ 1.3 VDC, 10mV/ dB | ||
| : | impedance 100© . | ||
| ▪ | Power | : | one 006p 9V battery |
| ▪ | Dimension | : | 220L × 80W × 30D mm |
| ▪ | Weight | : | approx. 250 grams |