Thiết bị đo tiếng ồn AZ 8922
Thông số kỹ thuật
| Model | 8921 | 8922 |
| Measure range | A weight: 40db~130db C weight: 45db~130db |
|
| Digital display(6 ranges) | 30~80, 40~90, 50~100,40~70db, 60~110,70~120,80~130db | |
| Digital display resolution | 0.1db | |
| Digital updating time | 160Ms | |
| Quasi- analog bar(6ranges) | 30~80, 40~90, 50~100,40~70db, 60~110,70~120,80~130db | |
| Quasi- analog bar resolution | 1db | |
| Bar updating time | 40ms | |
| Accuracy at 94 db, 1KHz | +/-1.5db | |
| Analog output | AC0.707Vrms(at full scale); DC 10MV/DB | |
| Microphone | Dia.6mm electric condenser microphone | |
| Frequency range | 31.5Hz~8KHz | |
| Battery life time | 30 hours typical | |
| Windscreen | YES | |
| LCD size(mm) | 42(H)x62(W) | |
| Operating temp | 0~50˚C | |
| Operating RH% | Humidity < 80% | |
| Storage temp | -20~50˚C | |
| Storage RH% | Humidity<90% | |
| Dimension (mm) | 72x182x30 | |
| Weight | ~200g | |
| Battery | 9V x 1pc | |
| Standard Package | Meter/ Battery/ Manual/carry case | |
| Optional Accessory | Computer connection software kit | |
