LD-3C型激光粉塵儀是以激光為光源具有較高水平的型袖珍式粉塵儀。*符合衛(wèi)生部行業(yè)標準的快速測塵儀；已有千臺以上在全國各地使用。

該儀器適用于公共場所可吸入顆粒物（PM10）濃度的快速測定、工礦企業(yè)生產(chǎn)現(xiàn)場等勞動衛(wèi)生方面粉塵濃度的檢測，以及環(huán)境保護領(lǐng)域可吸入塵濃度的監(jiān)測，還可用于空氣凈化器凈化效率的評價。

·引進日本全套生產(chǎn)制造及檢測標定技術(shù)及設(shè)備
·符合衛(wèi)生部行業(yè)標準WS/T206－2001《公共場所空氣中可吸入顆粒物（PM10）測定方法－ 光散射法》
·符合勞動部行業(yè)標準LD98－1996《空氣中粉塵濃度的光散射式測定法》
·符合鐵道部行業(yè)標準TB/T2323-92《鐵路作業(yè)現(xiàn)場粉塵測定相對質(zhì)量濃度與質(zhì)量濃度轉(zhuǎn)換方法。

Preview：

LD-3C model laser dust monitor is an inligent multifunctional portable monitor developed by Beijing BINDA Green Technology Ltd. –the former Dust Group of Beijing Institute New  Technology Application.  Being one kind of advanced world standard dust monitor, the monitor can be used to quickly measure inhalable particle--PM10-- concentration in public, measure the labor hygiene related dust concentration at the field of production and monitor inhalable dust concentration in environmental protection, as well as evaluate the efficiency of an air cleaner.                  

The monitor is a light-scattering one with a laser light source. The quality control comes up to the national technology supervision ministry’s standard—Light-scattering Type Digital Dust Monitor Quality Control Regulations JJG 846-93 and the operation comes up to the labor ministry’s standard—Light-scattering Measurement of the Dust Concentration in Air LD98-1996 and hygiene ministry’s standard—Measurement Method of Inhalable Particle Concentration （PM10） in Air in Public, Light-scattering Method WS/T206-2001. 

主要特點：

可直讀顆粒物質(zhì)量濃度（mg/m³），1分鐘出結(jié)果；

測量快速、準確、檢測靈敏度高；

設(shè)計了自校系統(tǒng),儀器性能穩(wěn)定可靠；

具有氣幕屏蔽及潔凈氣自清洗功能，確保光學(xué)系統(tǒng)不受污染；

實現(xiàn)了軟件自動調(diào)零；

具有與計算機雙向通訊功能，可通過PC機進行數(shù)據(jù)處理，打印出曲線及表格；

具有顆粒物濃度連續(xù)監(jiān)測、定時采樣以及粉塵濃度超標報警等多種功能；

主要技術(shù)指標

檢測靈敏度： LD－3C（L） 0.01mg/m³ ；
        　 LD－3C（H） 0.001 mg/m³ ；

測定范圍：    LD－3C（L） 0.01~100 mg/m³ ；
          LD－3C（H） 0.001~10 mg/m³ ；

測定時間：采樣標準時間為1分鐘，設(shè)有0.1、1、2、5、10分鐘及手動檔（任意設(shè)定采樣時

             間）；

重復(fù)性誤差： ≤±2%；

測量精度： ±10%

顯 示 屏：帶標識4位液晶顯示器；

存 貯：可循環(huán)存儲99組數(shù)據(jù)；

定時采樣：可設(shè)定測量時間1~9999秒及采樣次數(shù)1~9999次

輸出接口：PC機通訊接口（RS232）及打印機輸出接口

環(huán)境溫度：0~40℃（儲存溫度－20~60℃）

電 源：交直流兩用，配充電電池及充電器

尺 寸：192×69×140 mm

重 量：1.4Kg

          Main Specifications：

          1. Measuring sensitivity:    LD- 3C（L）  1 CPM = 0.01 mg/m³;

                                                    LD- 3C（H）  1 CPM = 0.001 mg/m³.

          2. Measuring range:          LD- 3C（L）  0.01 ~ 100 mg/m³;

                                                    LD-3C（H）  0.001~10 mg/m³.

          3. Measuring time interval:  Standard time 1 minute. 0.1 minute and manual timing   

                                            alsodelivered, manual timing can set any available

                                            sampling time.

4. Measuring accuracy:   ±10%.

          5. Display screen:   4 digit liquid crystal screen with indications

          6. Data Storage:   Cycle store 99 group of data.

          7.Time sampling: Measuring time interval 1~9999 second, Power off time 0~9999

                            second, warm-up time 0~10 second and sampling times 1~9999

                            can be set.

          8. Setting dust concentration alarm threshold:

            concentration threshold less than 65 mg/m³; measuring time interval: 1~9999 second.

          9. Output interfaces:

         （1）  Serial interface for PC communication: RS 232;

         （2）  Output interface of micro-printer;

         （3）  Output interface for analog value: 0 – 1 V;

         （4）  Output interface for digital value: level signal.

         10. Power supply:   Ni – MH  rechargeable batteries group （1.2 V ´ 4）, capacity for 8

                               hours, 220 V AC / 12 V DC adapter also provided.

         11. Dimensions:    192 ´ 69 ´ 140 mm.

         12, Weight:    1.4 kg .