聲級計記錄器SL-4033SD特點
*主要功能設(shè)計符合IEC 61672-2級標準。
*標準加權(quán)網(wǎng)絡(luò)符合標準。
* 0.5“標準麥克風(fēng)頭。
*時間加權(quán)（快-慢）動態(tài)特性模式。
*建立外部校準VR。。
*自動范圍和手動范圍選擇。
*可用于外部校準調(diào)整。
*高精度、長期穩(wěn)定的電容傳聲器。
*存儲和最小值的內(nèi)存功能。
*峰值保持功能。
*SD記憶卡實時Datalogger記錄，它內(nèi)置時鐘和日歷，實時數(shù)據(jù)記錄器，采樣時間：1秒到3600秒。
*手動數(shù)據(jù)可用（設(shè)置采樣時間0秒），在執(zhí)行手動數(shù)據(jù)采集器的功能，可以設(shè)置不同的位置（位置）號（1位到99位）。
*創(chuàng)新型設(shè)計，易于操作，計算機不需要設(shè)置額外的軟件，執(zhí)行數(shù)據(jù)采集器時，只是把SD卡從表和插入SD卡插入電腦，可以下載的所有測量值和時間信息（年/月/日/時/分/秒）到Excel，然后用戶可以自己進行進一步的數(shù)據(jù)或圖形分析。
* SD卡容量：1 GB到16 GB。
* LCD背光燈綠色，易于閱讀。
*能自動關(guān)機或手動關(guān)機。
*數(shù)據(jù)保持，記錄和最小讀數(shù)。
*微機電路，高精度。
* UM3 AA電源（1.5 V）x 6電池或直流9V適配器。
* PC機接口。
*重型及小型外殼
聲級計記錄器SL-4033SD規(guī)格參數(shù)
| Circuit | Custom one-chip of microprocessor LSI circuit. |
| Display | LCD size : 52 mm x 38 mm LCD with green backlight ( ON/OFF ). |
| Measurement Range | 30 - 130 dB. |
| Resolution | 0.1 dB. |
| Function | dB ( A & C frequency weighting ), Time weighting ( Fast, Slow ), Peak hold, Data hold Record ( Max., Min. ). |
| Accuracy (23 ± 5 ℃) | Characteristics of " A " frequency weighting network meet IEC 61672 class 1 Under 94 dB input signal, the accuracy are : Remark : The above spec. are tested under the environment RF Field Strength less than 3 V/M & frequency less than 30 MHz only. |
| Frequency Weighting Network | Characteristics of A & C. A weighting : The characteristic is simulated as "Human Ear Listing" response. Typical, if making the environmental sound level measurement, always select to A weighting. C weighting The characteristic is near the "FLAT" response. Typical, it is suitable for checking the noise of machinery (Q.C. check) & knowing the sound pressure level of the tested equipment. |
| Data hold | To freeze the measurement value. |
| Circuit | Custom one-chip of microprocessor LSI circuit. |
| Display | LCD size : 52 mm x 38 mm LCD with green backlight ( ON/OFF ). |
| Measurement Range | 30 - 130 dB. |
| Resolution | 0.1 dB. |
| Function | dB ( A & C frequency weighting ), Time weighting ( Fast, Slow ), Peak hold, Data hold Record ( Max., Min. ). |
| Accuracy (23 ± 5 ℃) | Characteristics of " A " frequency weighting network meet IEC 61672 class 1 Under 94 dB input signal, the accuracy are : Remark : The above spec. are tested under the environment RF Field Strength less than 3 V/M & frequency less than 30 MHz only. |
| Frequency Weighting Network | Characteristics of A & C. A weighting : The characteristic is simulated as "Human Ear Listing" response. Typical, if making the environmental sound level measurement, always select to A weighting. C weighting The characteristic is near the "FLAT" response. Typical, it is suitable for checking the noise of machinery (Q.C. check) & knowing the sound pressure level of the tested equipment. |
| Data hold | To freeze the measurement value. |
