DLMD-A電線電纜煙密度測試儀 （DLMD-A wire and cable smoke density tester）

一.電線電纜煙密度測試儀滿足標(biāo)準(zhǔn)： GB/T17651.1、17651.2－1998、IEC61034－１～61034－２：1997標(biāo)準(zhǔn)規(guī)定。 （ A wire and cable smoke density tester meets the standard: GB/T17651.1, 17651.21998, IEC610341 ~ 610342:1997 standard.）

工作原理： （Working principle.）

電纜或光纜在特定條件下燃燒的煙密度光測系統(tǒng)由光源、硅光電池接受器和計(jì)算機(jī)系統(tǒng)組成。光源產(chǎn)生的光通過3m×3m×3m的煙密度實(shí)驗(yàn)室，在光源對面的墻上形成一直徑1.5m±0.1m 的均勻光束，安裝在光束中心處的光電池檢測來自光源的光束強(qiáng)度。當(dāng)燃燒室內(nèi)由于燃燒電纜或光纜產(chǎn)生大量煙霧時(shí)，煙把光電吸收掉一部分，達(dá)到硅光電池的光束強(qiáng)度就減弱，通過計(jì)算機(jī)系統(tǒng)對數(shù)據(jù)進(jìn)行處理，就能夠計(jì)算出相對于初始時(shí)為*的具有線性響應(yīng)的透光率It。 （Smoke density measurement system of cables burning under certain conditions by the light source, the silicon photocell receiver and computer system. Light generated by the smoke density Laboratory of 3M * 3M * 3M, the formation of a uniform beam diameter of 1.5m ± 0.1M light source in the opposite wall, beam intensity light battery installed in the center of the detection light beam from a light source. When the combustion chamber for combustion cable or optical cable produces a lot of smoke, smoke the photoelectric absorption part of the fall, the beam intensity to the silicon photocell is weakened, the computer system to deal with the data, we can calculate the relative to the initial time is * with a transparent linear response rate of It.）

本儀器涉及機(jī)械、光學(xué)、電子三個(gè)方面的專業(yè)知識，是機(jī)光電一體化產(chǎn)品，具有結(jié)構(gòu)合理、性能穩(wěn)定、操作簡便等優(yōu)點(diǎn)；具有WINDOWS XP操作系統(tǒng)、LabVIEW風(fēng)格界面、完善的安全機(jī)制。測試期間實(shí)時(shí)顯示測量結(jié)果并動(dòng)態(tài)地繪出*曲線，數(shù)據(jù)可以*保存、調(diào)閱和打印輸出。 （This instrument relates to professional knowledge in three areas of mechanical, optical, electronic, photoelectric integration is the product, has the advantages of reasonable structure, stable performance, simple operation and so on; with WINDOWS XP operating system, LabVIEW style interface, perfect safety mechanism. During the test display the measurement results in real time and dynamically draw a perfect curve, data can be stored permanently, read and print output.）.

電線電纜煙密度測試儀用途：（Wire and cable smoke density tester）

電線電纜煙密度測試儀與鹵酸氣體測試儀同時(shí)配合使用，是檢驗(yàn)電線電纜及光纜低阻燃性電纜評定發(fā)煙特性*的專業(yè)儀器。 （Wire and cable smoke density test instrument and halogen acid gas tester with the use, is a professional instrument testing of wire and cable and cable low flame retardant cable rating smoke characteristics essential.）

產(chǎn)品組成： （Composition of the product:）

1、可積木式實(shí)驗(yàn)室（國標(biāo)要求的實(shí)驗(yàn)室面積為3m×3m×3m，本套系統(tǒng)中的實(shí)驗(yàn)室可根據(jù)客戶的實(shí)際場地進(jìn)行積木調(diào)整，實(shí)驗(yàn)室中包括擋風(fēng)板、燃燒盤、試樣支架、循環(huán)風(fēng)扇、精密凈化穩(wěn)壓電源系統(tǒng)、連接系統(tǒng)、電氣控制系統(tǒng)等）；

2、*德國光源系統(tǒng)（標(biāo)稱光源和硅光接收系統(tǒng)）；

3、數(shù)據(jù)采集處理及計(jì)算機(jī)全自動(dòng)控制試驗(yàn)系統(tǒng)；

五.產(chǎn)品性能指標(biāo)：

1、透光率（吸收率）測試精度±1%

2、標(biāo)稱功率：100W

標(biāo)稱電壓：12V

 標(biāo)稱光通量: 2000-3000lm

標(biāo)稱色溫：2800-3200K

3、電源輸入AC220V

4、功率  600W

5、標(biāo)準(zhǔn)光燈功率100 W

6、信號輸出RS232C標(biāo)準(zhǔn)電平

Composition of the product：
1, building laboratory (Laboratory of national standard for 3M * 3M * 3M, this system in the laboratory can block adjustment, according to the actual field customers laboratory include windshield, burning plate, sample holder, circulating fan, precision cleaning power supply system, connection system, electrical control system etc.);

2, Germany imported light source system (nominal source and silicon light receiving system);

3,Full automatic control test system, data acquisition and computer

Five. Product performance index:

1, the transmittance (absorption rate) test accuracy of ± 1%
2, the nominal power: 100W
Nominal voltage: 12V

Nominal flux: 2000-3000lm

Nominal temperature: 2800-3200K
 
3, the power input AC220V

4, power 600W

5, standard light power of 100 W
6, RS232C standard signal output leve