??1??7示器 | 三位半液晶??1??7示器,字高18mm. |
功能 | dB A/dB C加??1??7??1??7路
??1??7??1??7加??1??7(快/慢)
??1??7料(??1??7值)??1??7定，最大值??1??7定
AC/DC??1??7??1??7信??1??7??1??7出 |
??1??7量??1??7??1??7 | A加??1??7:分??1??73??1??7??1??7??1??7??1??730~130dB.(分??1??7)
C加??1??7:分??1??73??1??7??1??7??1??7??1??730~130dB.(分??1??7) |
解析度 | 0.1dB |
精??1??7度 | 1KHz-±1.5 dB |
??1??7??1??7??1??7??1??7 | 3??1??7手??1??7??1??7??1??7??1??7??1??7:30~80 dB.50~100dB.80~130 Db
??1??7位??1??7高,??1??7低指示功能 |
??1??7率??1??7??1??7 | 31.5~8000Hz |
??1??7克??1??7型式 | ??1??7容式??1??7克??1??7 |
??1??7克??1??7尺寸 | 直??1??7.12.7mm.(0.5英寸).??1??7??1??7尺寸 |
??1??7率加??1??7??1??7路 | A加??1??7:模??1??7人??1??7耳朵??1??7??1??7反??1??7.??1??7合一般??1??7境噪音??1??7量 |
C加??1??7:接近FLAT??1??7??1??7.??1??7合??1??7量??1??7查??1??7械噪音 |
??1??7??1??7加??1??7 | Fast(快)=200ms.Slow(慢)=500ms
*Fast??1??7:模??1??7人??1??7耳朵??1??7??1??7的反??1??7??1??7??1??7加??1??7
*Slow??1??7:方便使用者取得低??1??7振??1??7平均音??1??7 |
校正??1??7??1??7源 | B&K 4226 (Bruel & Kjaer)多功能音??1??7校正器 |
??1??7出信??1??7 | AC??1??7??1??7??1??7出：各??1??7??1??7出??1??7刻度AC 0.5Vrms，??1??7出阻抗600Ω |
DC??1??7??1??7??1??7出：直流0.3V~1.3V，??1??7出阻抗600Ω |
??1??7出端子 | 端子插座尺寸:直??1??73.5mm.耳??1??7插座 |
校正VR | ??1??7建式外部VR.方便使用小起子??1??7校 |
??1??7度/??1??7度 | 0~50℃.(32~122??1??7)/??1??7低於90%RH(相??1??7??1??7度) |
??1??7源 | 006P直流9伏特??1??7池 |
消耗??1??7流 | ??1??7直流6mA |
外??1??7尺寸 | 255*70*28mm |
重量 | 280公克/0.62磅.(含??1??7池) |
??1??7??1??7附件 | 操作??1??7明??1??71本 |
??1??7??1??7附件 | 94 dB音??1??7校正器.型??1??7:.SC-941.SC-942 |
??1??7率( Hz ) | A加??1??7??1??7路特性 | C加??1??7??1??7路特性 | ??1??7差(IEC651type2) |
31.5 | -39.4 dB | -3 dB | ±3 dB |
63 | -26.2 dB | -0.8 dB | ±2 dB |
125 | -16.1 dB | -0.2 dB | ±1.5 dB |
250 | -8.6 dB | 0 dB | ±1.5 dB |
500 | -3.2 dB | 0 dB | ±1.5 dB |
1K | 0 dB | 0 dB | ±1.5 dB |
2K | +1.2 dB | -0.2 dB | ±2 dB |
4K | +1 dB | -0.8 dB | ±3 dB |
8K | - 1.1 dB | -3 dB | ±5 dB |