BC9a飽和標準電池/BC-9a
BC9a飽和標準電池產(chǎn)品介紹
BC9a飽和標準電池是一種高精度化學電池，采用飽和硫酸鎘溶液設(shè)計，具有優(yōu)異的電動勢穩(wěn)定性和復(fù)現(xiàn)性，廣泛用作電壓參考標準。該電池在20℃環(huán)境下的電動勢標稱值為1.01855～1.01868V，準確度達到0.005%，年變化不超過50μV，適用于實驗室精密測量和工業(yè)校準場景。產(chǎn)品采用便攜式設(shè)計（外形尺寸98×98×128mm），結(jié)構(gòu)堅固可靠，能夠承受一定程度的傾斜和震動，方便現(xiàn)場使用和運輸。其工作原理基于韋斯頓電池的化學體系，通過嚴格控制電解液濃度和電極材料純度來保證輸出穩(wěn)定性。124
BC-9a Saturated Standard Cell Product Introduction
The BC-9a saturated standard cell is a precision electrochemical device designed for voltage reference applications, featuring stable electromotive force (EMF) output between 1.01855 to 1.01868V at 20℃ with 0.005% accuracy. This portable unit (98×98×128mm) employs saturated cadmium sulfate electrolyte solution to maintain long-term stability, showing annual EMF variation below 50μV. Its robust construction allows safe transportation and operation in laboratory or industrial environments. The cell follows Weston cell principle with optimized electrode materials and hermetic sealing to ensure consistent performance. Suitable for potentiometers, digital voltmeters and recording instruments, it serves as reliable voltage reference under 1-60℃ ambient temperature with humidity below 80%.7812
技術(shù)特性與使用說明
該產(chǎn)品采用特殊工藝處理的汞鎘合金電極和晶體化電解液體系，溫度系數(shù)經(jīng)過精確補償，在10-40℃工作范圍內(nèi)可通過公式Et=E20-[α(t-20)+β(t-20)²-γ(t-20)³]×10⁻⁶V計算溫度修正值。內(nèi)部電阻約1000Ω，最大允許瞬態(tài)電流1μA。使用時應(yīng)避免突然的溫度變化和陽光直射，運輸后需在標準溫度下穩(wěn)定30分鐘。不同于傳統(tǒng)設(shè)計，BC9a采用新型環(huán)保結(jié)構(gòu)，減少了汞用量并強化了密封性，既保持經(jīng)典標準電池的穩(wěn)定性又符合現(xiàn)代環(huán)保要求。81117
Technical Features & Operating Guide
This cell incorporates temperature-compensated mercury-cadmium alloy electrodes with crystalline electrolyte system, providing calculable EMF correction via specified polynomial equation within 10-40℃ range. With 1000Ω internal resistance and 1μA max transient current tolerance, it requires protection against thermal shock and direct sunlight. The environmentally improved design reduces hazardous materials while maintaining hermetical sealing performance. After transportation, 30-minute stabilization at 20℃ is recommended. The dual-terminal configuration permits series/parallel connections for different voltage requirements, and its insulated housing (5000MΩ isolation) ensures safety in metrological applications.121619
應(yīng)用領(lǐng)域與維護建議
BC9a型電池廣泛應(yīng)用于計量機構(gòu)、高等院校和科研單位的電動勢工作標準，可與各類電位差計、高精度數(shù)字表及自動記錄儀配套使用。建議存放于溫度波動小的環(huán)境中，定期清潔電極端子，使用高阻抗（>10MΩ）測量設(shè)備。當電池閑置超過三個月時，應(yīng)進行充放電維護以保持電解液活性。產(chǎn)品壽命通常超過5年，通過正規(guī)檢定可延長服役周期。配套提供的技術(shù)參數(shù)卡片需妥善保存，便于后續(xù)量值溯源和溫度修正計算。4914
Applications & Maintenance
Ideal for metrology institutes, industrial labs and educational facilities, this cell pairs with precision instruments like differential potentiometers and data loggers. Storage in <80% humidity with minimal temperature variation is advised. Terminal oxidation should be cleaned periodically using proper methods. For prolonged storage, quarterly charge-discharge cycles help maintain electrolyte activity. The 5+ years service life can be extended through regular verification. Included calibration data sheet provides essential parameters for traceability and temperature compensation throughout product lifecycle.131821
BC9a飽和標準電池
的詳細介紹BC9a飽和標準電池/BC-9a
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序號
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型號
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產(chǎn) 品 名 稱
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測 量 范 圍
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準確度
等級
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出廠價￥
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9-1
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BC9a
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飽和標準電池
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1.01855～1.01868
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0.005
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240
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9-2
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BC2
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飽和標準電池
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1.01855～1.01868
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0.005
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320
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9-3
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BC3
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飽和標準電池
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1.01855～1.01868
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0.005
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320
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9-4
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BC7-1
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便攜式為飽和標準電池
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1.01855～1.01868
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0.01
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120
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9-5
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BC5-2
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便攜式為飽和標準電池
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1.01880～1.01930
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0.01
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117
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9-6
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BC24
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便攜式不飽和標準電池
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1.01880～1.01930
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0.01
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105
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9-7
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BC11
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高精度電池組
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1.01890～1.018680
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0.0005
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4800
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9-8
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BC11a
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高精度基準電池組(10只裝)
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1.01890～1.018680
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0.0005
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8600
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