純水純化水TOC分析儀  更換UV 燈

更換UV 燈時，須小心操作，以免損壞燈管及其周圍的螺旋狀石英管。

給客戶提供新UV 燈管時，附送一雙手套供安裝時使用，避免在 UV 燈管表面和螺

旋狀石英管表面留下指紋。指紋會吸收UV 光線、降低氧化反應器的氧化性能。同時

在安裝新的UV 燈管之前可以使用乙醇去除指紋和污垢，保證 UV 燈表面的透光率。

純水純化水TOC分析儀  更換UV 燈具體操作：

○1 關閉主電源開關，拔去電源線。

○2 將儀器機箱后蓋板的螺釘擰開，打開后蓋板。

○3 拔掉連接燈管的電源線插頭，并檸松燈管座的鎖緊螺母，慢慢抽出燈管。

○4 換上新燈管并調整燈管在螺旋石英管中的有效位置，擰緊鎖緊螺母。

○5 插好燈管的電源線插頭并將機箱后蓋板螺絲擰緊，更換結束。

更換以上部件時存在問題可聯系儀器廠家解決。

純水純化水TOC分析儀   工作原理

本儀器采用紫外氧化的原理，將樣品中的有機物氧化為二氧化碳，二氧化碳的測試采用的是直接電導率法，通過測試經過氧化反應的樣品的總碳含量和未經過氧化反應的樣品總無機碳的含量差值來測定總有機碳含量，即：總有機碳（TOC）=總碳（TC）-總無機碳（TIC）。

產品特點

1.儀器采用便攜設計，使用輕便，方便移動至取樣點。

2.采用嵌入式系統，觸摸屏設計，純中文操作方便簡易。

3.針對制藥用水（TOC含量在1000ppb以下）總有機碳含量的檢測設計，進行檢測。

4.配備大量的儲存空間，能夠存儲大量的測試數據。

5.中文打印，輸出測試參數、測試結果。

6.在使用、貯存和更換過程中不需要氣體或試劑，無移動部件，減少維修和維護成本。

7.當測試樣品濃度超過規定限度，儀器能夠自動報警，并輸出控制信號。

8.符合國家2010版《中國藥典》規定的測試方案，可以提供IQ/OQ/PQ服務。

產品特點

1.儀器采用便攜設計，使用輕便，方便移動至取樣點。

2.采用嵌入式系統，觸摸屏設計，純中文操作方便簡易。

3.針對制藥用水（TOC含量在1000ppb以下）總有機碳含量的檢測設計，進行檢測。

4.配備大量的儲存空間，能夠存儲大量的測試數據。

5.中文打印，輸出測試參數、測試結果。

6.在使用、貯存和更換過程中不需要氣體或試劑，無移動部件，減少維修和維護成本。

7.當測試樣品濃度超過規定限度，儀器能夠自動報警，并輸出控制信號。

8.符合國家《中國藥典》 CP2010規定的測試方案，可以提供IQ/OQ/PQ服務。

性能規格:

測量范圍：0.01mg/L～1.000 mg/L（此處可調）

精度：?4%測試范圍

分辨率：0.001mg /L

分析時間：連續分析

響應時間：6分鐘之內

檢測極限：0.001mg /L

樣品溫度：1- 95℃

重復性誤差：≤3%

電源要求/功能：220V

顯示屏：彩色觸摸屏

操作控制：無線藍牙技術；

主要特征:

1、高精度、高靈敏度，操作簡單。

2、人性化操作界面，有一鍵運行功能，自動管路清洗功能。

3、高性能CPU，觸摸屏設計，超大640*480點陣真彩顯示器。

4、不用拆開機箱更換UV燈和泵管。

5、檢測上限可設定，自動上限報警功能。

6、具有RS232數據接口，歷史數據可存儲6個月。

7、離線檢測和在線檢測可選配。

8、具有打印功能

系統組成

TOC分析儀的組成包括以下7個主要部分：

① 在線檢測裝置（在線型儀器配備）

② 樣品蠕動泵

③ 分流器

④ 氧化反應器

⑤ 二氧化碳傳感器

    ⑥ 微處理控制器和電子線路板

⑦ 輸出接口

主要配置

主機 一臺

觸摸屏 （鑲嵌到儀器中）

微型打印機   一臺

進樣管   一條

電源線  一套

產品說明書  一份

產品合格證  一份

產品裝箱單  一份

參數：

測定原理

總有機碳（TOC），由專門的儀器——總有機碳分析儀（以下簡稱TOC分析儀）來測定。TOC分析儀，是將水溶液中的總有機碳氧化為二氧化碳，并且測定其含量。利用二氧化碳與總有機碳之間碳含量的對應關系，從而對水溶液中總有機碳進行定量測定。

市面上常見的TOC分析儀都有兩大基本功能：第一，首先將水中的總有機碳充分氧化，生成二氧化碳CO2；第二，測試新產生的CO2.不同品牌和型號的TOC分析儀的區別在于實現這兩大基本功能的方法不同。常用的氧化技術有：燃燒氧化法、紫外線氧化法以及超臨界氧化法；而對CO2的檢測方法又分：非分散紅外線檢測，直接電導率檢測以及選擇性薄膜電導率檢測。

紫外線氧化法

使用UV燈照射待測水樣，水會分解成羥基和氫基，羥基和氧化物結合會生成CO2和水，然后檢測新生成的CO2即可計算出總有機碳含量。在使用紫外線氧化法時，通過添加二氧化鈦，過硫酸鹽等可以提高氧化能力。紫外線氧化法的優點是氧化效率高，保養簡單，缺點是UV燈管需要定期更換。

薄膜電導率檢測法

的主要有兩種電導率檢測技術：一種是直接電導率法，另外一種是薄膜電導率檢測法（又稱選擇性電導率法）。采用兩種電導率法的TOC分析儀校驗結果都很穩定，檢測精度高。這兩種技術最主要的區別在于，直接電導率法比較容易受雜酸性，鹵化有機物等的干擾；而薄膜電導率檢測技術抗干擾性更佳。

薄膜電導率檢測法是GE TOC分析儀使用較多的檢測方法，TOC分析儀使用的膜能防止雜離子的通過，確保檢測的只是CO2的含量，從而使TOC的讀數更為精確。

主要特征:

1、高精度、高靈敏度，操作簡單。

2、人性化操作界面，有一鍵運行功能，自動管路清洗功能。

3、高性能CPU，觸摸屏設計，超大640*480點陣真彩顯示器。

4、不用拆開機箱更換UV燈和泵管。

5、檢測上限可設定，自動上限報警功能。

6、具有RS232數據接口，歷史數據可存儲6個月。

7、離線檢測和在線檢測可選配。

8、具有打印功能

Replace UV lamp

When replacing the UV lamp, be careful to avoid damaging the lamp tube and the spiral quartz tube around it.

When providing new UV lamps to customers, a pair of gloves are included for installation to avoid contact with the surface and screws of the UV lamps

Fingerprints are left on the surface of the spiral quartz tube. Fingerprints absorb UV light and reduce the oxidation performance of the oxidation reactor. At the same time

Before installing a new UV lamp, ethanol can be used to remove fingerprints and dirt, ensuring the surface transmittance of the UV lamp.

Specific steps for replacing the UV lamp:

Turn off the main power switch and unplug the power cord.

Unscrew the screws on the back cover of the instrument case and open the back cover.

Disconnect the power cord plug connected to the lamp tube, loosen the locking nut of the lamp tube holder, and slowly pull out the lamp tube.

Replace the lamp tube with a new one and adjust its effective position in the spiral quartz tube, then tighten the locking nut.

Insert the power cord plug of the lamp tube and tighten the screws on the back cover of the chassis. The replacement is complete.

If there are any problems when replacing the above components, please contact the instrument manufacturer for resolution.

working principle

This instrument adopts the principle of ultraviolet oxidation to oxidize organic matter in the sample into carbon dioxide. The direct conductivity method is used to test the carbon dioxide content. The total organic carbon content is determined by measuring the difference between the total carbon content of the sample that has undergone oxidation reaction and the total inorganic carbon content of the sample that has not undergone oxidation reaction, that is, total organic carbon (TOC)=total carbon (TC) - total inorganic carbon (TIC).

Product Features

1. The instrument adopts a portable design, which is easy to use and convenient to move to the sampling point.

2. Adopting an embedded system and touch screen design, pure Chinese operation is convenient and easy.

3. Design and conduct testing for the total organic carbon content of pharmaceutical water (TOC content below 1000ppb).

4. Equipped with a large amount of storage space, capable of storing a large amount of test data.

5. Print in Chinese and output test parameters and results.

6. No gas or reagents are required during use, storage, and replacement, and there are no moving parts, reducing maintenance and repair costs.

When the concentration of the test sample exceeds the specified limit, the instrument can automatically sound an alarm and output a control signal.

8. According to the testing plan specified in the 2010 edition of the Chinese Pharmacopoeia, IQ/OQ/PQ services can be provided.

Product Features

1. The instrument adopts a portable design, which is easy to use and convenient to move to the sampling point.

2. Adopting an embedded system and touch screen design, pure Chinese operation is convenient and easy.

3. Design and conduct testing for the total organic carbon content of pharmaceutical water (TOC content below 1000ppb).

4. Equipped with a large amount of storage space, capable of storing a large amount of test data.

5. Print in Chinese and output test parameters and results.

6. No gas or reagents are required during use, storage, and replacement, and there are no moving parts, reducing maintenance and repair costs.

When the concentration of the test sample exceeds the specified limit, the instrument can automatically sound an alarm and output a control signal.

8. According to the testing plan specified in the Chinese Pharmacopoeia CP2010, IQ/OQ/PQ services can be provided.

Performance specifications:

Measurement range: 0.01mg/L to 1.000 mg/L (adjustable here)

Accuracy:?4% Test range

Resolution: 0.001mg/L

Analysis time: continuous analysis

Response time: within 6 minutes

Detection limit: 0.001mg/L

Sample temperature: 1-95℃

Repetitive error:≤3%

Power requirement/function: 220V

Display screen: Color touch screen

Operation control: wireless Bluetooth technology;

Main features:

1. High precision, high sensitivity, and easy operation.

2. Humanized operation interface, with one click operation function and automatic pipeline cleaning function.

3. High performance CPU, touch screen design, ultra large 640 * 480 dot matrix true color display.

4. No need to open the chassis to replace the UV lamp and pump tube.

5. The detection upper limit can be set, and the automatic upper limit alarm function.

6. Equipped with RS232 data interface, historical data can be stored for 6 months.

7. Offline detection and online detection are optional.

8. Equipped with printing function

system composition

The composition of TOC analyzer includes the following 7 main parts:

①Online detection device (equipped with online instruments)

②Sample peristaltic pump

③Diverter

④Oxidation reactor

⑤Carbon dioxide sensor

⑥Microprocessor controllers and electronic circuit boards

⑦Output interface

Main configuration

One host

Touch screen (embedded in the instrument)

One micro printer

One injection tube

A set of power cords

One copy of product manual

One copy of product qualification certificate

Product packing list copy

Parameters:

Measurement range: 0.01mg/L to 1.000mg/L

2 accuracy?4%

3 Resolution 0.001mg/L

4 analysis time 40 minutes

5 response time 8 minutes

6 detection limit 0.001mg/L

Sample temperature: 1-95℃

8 Power Requirements/Function 220V

9. Repetitive error≤3%

10 color touch screen display

Measurement principle

Total Organic Carbon (TOC) is measured by a specialized instrument called Total Organic Carbon Analyzer (TOC Analyzer). TOC analyzer is used to oxidize total organic carbon in aqueous solution to carbon dioxide and determine its content. Quantitative determination of total organic carbon in aqueous solution by utilizing the corresponding relationship between carbon content of carbon dioxide and total organic carbon.

The common TOC analyzers on the market have two basic functions: firstly, to fully oxidize the total organic carbon in water and generate carbon dioxide (CO2); Secondly, testing the newly generated CO2. The difference between TOC analyzers of different brands and models lies in the different methods used to implement these two basic functions. The commonly used oxidation techniques include combustion oxidation, ultraviolet oxidation, and supercritical oxidation; The detection methods for CO2 are divided into non dispersive infrared detection, direct conductivity detection, and selective thin film conductivity detection.

UV oxidation method

Using a UV lamp to irradiate the water sample to be tested, the water will decompose into hydroxyl and hydrogen groups. The combination of hydroxyl and oxide will generate CO2 and water, and then the newly generated CO2 can be detected to calculate the total organic carbon content. When using ultraviolet oxidation method, the oxidation ability can be improved by adding titanium dioxide, persulfate, etc. The advantages of UV oxidation method are high oxidation efficiency and simple maintenance, but the disadvantage is that UV lamps need to be replaced regularly.

Thin film conductivity detection method

There are two main conductivity detection techniques: direct conductivity method and thin film conductivity detection method (also known as selective conductivity method). The calibration results of TOC analyzers using two conductivity methods are both stable and have high detection accuracy. The main difference between these two technologies is that the direct conductivity method is more susceptible to interference from impurities such as acidity and halogenated organic compounds; The thin film conductivity detection technology has better anti-interference performance.

The thin film conductivity detection method is a commonly used detection method for GE TOC analyzers. The membrane used in TOC analyzers can prevent the passage of impurities, ensuring that only CO2 content is detected, thereby making TOC readings more accurate.

Main features:

1. High precision, high sensitivity, and easy operation.

2. Humanized operation interface, with one click operation function and automatic pipeline cleaning function.

3. High performance CPU, touch screen design, ultra large 640 * 480 dot matrix true color display.

4. No need to open the chassis to replace the UV lamp and pump tube.

5. The detection upper limit can be set, and the automatic upper limit alarm function.

6. Equipped with RS232 data interface, historical data can be stored for 6 months.

7. Offline detection and online detection are optional.

8. Equipped with printing function