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HANNA新款微電腦卡爾費休庫侖法水分測定儀
HANNA款微電腦卡爾費休庫侖法水分測定儀，微量5%或1ppm含水量的測定: 含水量很低的樣品（1ppm to 5%），由于含水量很少，常規采用卡爾費休庫侖法水分測定，加入庫侖法卡爾費休試劑，通過智能反應池，在幾分鐘內就能獲取的水分測定數據，適用于固體、液體微量水分快速測定。
HANNA款微電腦卡爾費休庫侖法水分測定儀
HI904微電腦卡爾?費休庫侖法水分測定儀
微量5%或1ppm含水量的測定: 含水量很低的樣品（1ppm to 5%），由于含水量很少，常規采用卡爾費休庫侖法水分測定，加入庫侖法卡爾費休試劑，通過智能反應池，在幾分鐘內就能獲取的水分測定數據，適用于固體、液體微量水分快速測定。
HI904 HANNA款微電腦卡爾費休庫侖法水分測定儀-產品介紹
Features
? More precise, better accuracy than other water content analysis methods
? Measures 1ppm to 5%
? Low sample volume and preparation is easy
? Can be used for liquids or solids*
? Specific to water – independent of presence of volatile substances
? Closed reagent handling system with integrated diaphragm air pump maintains a dry environment
? Easily transfer methods and results (of drift analysis or titrations) to PC via the USB port
? Choose from diaphragm or diaphragm-less generator cells, depending on the specific application
? Compact shape will fit on any laboratory bench (not composed of many modules that can take up space)
Introducing the newest addition to Hanna’s family of Titration Systems: the HI 904 Coulometric Karl Fischer Titrator. The HI 904 excels at determining water content in
extremely small concentrations (1 ppm to 5%) and requires no titrant, instead using a generator electrode.
A pulsed DC current is applied to the generator electrode and results in oxidation of free iodide to iodine (the titrant) at the platinum anode. Alcohol, sulfur dioxide and base
(pyridine or imidaole) present in the reagents react to form a salt that is oxidied by the generated iodine. This reaction consumes water present in the cell in a 1:1 ratio
(iodine:water). Once all of the water is consumed, the excess iodine is detected using a bilvoltammetric detector electrode and signals the end of the titration. The result is
calculated from the amount of current applied to complete the reaction and the length of time that the generator electrode is active (A?s, or Coulombs).
HI904 HANNA款微電腦卡爾費休庫侖法水分測定儀-技術參數
| Range | 1 ppm to 5% | |
| Resolution | 1 ppm (0.0001%) | |
| Accuracy | 1% | |
| Result Units | %, ppm, ppt, mg/g, μg/g, mg, μg, mg/mL, μg/mL, mg/pc, μg/pc | |
| Sample Type | Liquid or Solid* (external diss./extract.) | |
| Titration Vessel | Operating volume between 100-200 mL | |
| Reagent Handling System | Sealed system with intergrated diaphragm air pump and beaker adapter | |
| Generator Cell | Configuration | Fritted or Fritless (w/ or w/o diaphragm) |
| Generator Cell | Dosing | 50-400 mA pulsed DC current |
| Determination | Pre Titration Conditioning | Automatic |
| Determination | Background Drift Connection | Automatic; User Selectable Value |
| Determination | Endpoint Criteria | Fixed mV persistence, relative drift stop, or absolute drift stop |
| Determination | Dosing | Dynamic |
| Determination | Result Statistic | Mean, Standard Deviation |
| Electrode | Type/Connection | Dual patinum pin, polariation electrode / BNC |
| Electrode | Polariation Current | 1, 2, 5,10,15, 20, 30 or 40 μA |
| Electrode | Voltage Range | 2 mV to 1000 mV |
| Electrode | Voltage Resolution | 0.1 mV |
| Electrode | Accuracy (@25°C/77°C) | ±0.1 mV |
| Graphic Display | 5.7 (320 x 240 pixel) color LCD | |
| Titration Methods | Additional Specification | Up to 100 (standard and user) |
| Data Storage | Up to 100 titration and drift rate reports can be stored |
HI904 HANNA款微電腦卡爾費休庫侖法水分測定儀-標準配置
主機、雙鉑針電極、蠕動加藥泵、5mL滴定管件套件、錐形瓶套裝，其他相關附配件，中英文使用說明書
HI904 HANNA款微電腦卡爾費休庫侖法水分測定儀-電極配件
| Electrodes | |
|---|---|
| HI 76320D | KF Electrode |
| Accessories | |
| HI 900100 | Dosing Pump |
| HI 900520 | Beaker Assembly |
| HI 900505 | 5 mL Burette Assembly |
| HI 900205 | 5 mL Burette Syringe |
| HI 900260 | 3-Way Valve |
| HI 900522 | KF beaker |
| HI 900523 | Dispensing tip |
| HI 900527 | Septum |
| HI 900528 | Solvent Port Plugs |
| HI 900530 | Titrant Bottle Top Assembly |
| HI 900534 | Waste Bottle |
| HI 900531 | Solvent/Waste Bottle Top Assembly |
| HI 900532 | Desiccant Cartridge for Beaker or Titrant |
| HI 900533 | Desiccant Cartridge |
| HI 900180 | Solvent-Handling Pump |
| HI 900535 | Tubing for Solvent/Waste Handling |
| HI 900536 | Tubing for Solvent-Handling Pump |
| HI 900540 | O-Ring Set |
| HI 900570 | Aspiration Tubing |
| HI 900580 | Dispensing Tubing and Fitting |
| HI 900930 | RS232 Cable for PC Connection |
