RX7/03十進(jìn)電容箱

RX7/03十進(jìn)電容箱產(chǎn)品介紹（中文）

RX7/03型十進(jìn)電容箱是一款專為精密電路設(shè)計(jì)的高性能電容調(diào)節(jié)設(shè)備，適用于1500Hz以下的交流電路系統(tǒng)。該產(chǎn)品采用旋鈕式十進(jìn)開關(guān)結(jié)構(gòu)，電容變化范圍為0-11100pF，通過(0-10)×(10+100+1000)pF的組合實(shí)現(xiàn)精確調(diào)節(jié)，最小步進(jìn)值為10pF，滿足高頻電路中對(duì)微小電容變化的精細(xì)控制需求。電容箱整體設(shè)計(jì)符合工業(yè)級(jí)精度要求，在+10℃至+35℃環(huán)境溫度及30%-80%相對(duì)濕度范圍內(nèi)均可穩(wěn)定工作。產(chǎn)品采用優(yōu)質(zhì)聚丙烯薄膜電容元件和銀銅復(fù)合觸點(diǎn)開關(guān)，確保長期使用的接觸穩(wěn)定性和參數(shù)一致性。典型應(yīng)用場(chǎng)景包括作為交流電橋的可變?nèi)菘贡�、濾波移相電路的容抗元件，以及電容表校正等精密測(cè)量場(chǎng)合。整機(jī)采用電磁屏蔽機(jī)箱設(shè)計(jì)，有效減少外部干擾，面板配備標(biāo)準(zhǔn)1/2端鈕和專用屏蔽0端鈕，支持二端或三端接入方式。產(chǎn)品尺寸緊湊（約375×100×140mm），重量輕便（≤2kg），便于實(shí)驗(yàn)室和現(xiàn)場(chǎng)使用。使用后建議進(jìn)行放電操作以延長元件壽命，儲(chǔ)存時(shí)應(yīng)置于干燥無腐蝕性氣體的環(huán)境中。111712

RX7/03 Decade Capacitance Box Product Introduction (English)

The RX7/03 decade capacitance box is a precision adjustment device designed for high-frequency circuit applications, operating reliably in AC circuits below 1500Hz. Featuring a rotary switch mechanism with 10-step increments, it provides adjustable capacitance ranging from 0 to 11100pF through (0-10)×(10+100+1000)pF combinations, achieving a fine resolution of 10pF per step. The unit maintains stable performance within an operational temperature range of +10℃ to +35℃ and relative humidity of 30%-80%. Constructed with polypropylene film capacitors and silver-copper composite contact switches, it ensures long-term parameter stability and minimal contact resistance. Typical applications include serving as variable reactance arms in AC bridges, capacitive components in filter/phase-shift circuits, and calibration references for capacitance meters. The shielded enclosure effectively suppresses electromagnetic interference, while the front panel provides standard "1/2" terminals and dedicated shielding "0" terminal for both two-terminal and three-terminal connection methods. With compact dimensions (375×100×140mm) and lightweight design (≤2kg), it s suitable for both laboratory and field use. Proper discharge after operation and storage in dry, non-corrosive environments are recommended for optimal maintenance.32115

產(chǎn)品技術(shù)特點(diǎn)補(bǔ)充說明

該電容箱采用模塊化十進(jìn)開關(guān)組件設(shè)計(jì)，每個(gè)十進(jìn)制單元由多個(gè)精密電容并聯(lián)構(gòu)成1-10個(gè)步進(jìn)值。電氣部分整體安裝在屏蔽機(jī)箱內(nèi)，有效降低分布電容影響（零位電容≤80pF）。工作電壓限制為50V有效值，在800-1000Hz頻率范圍內(nèi)可達(dá)到最佳精度表現(xiàn)。溫度系數(shù)經(jīng)過優(yōu)化，當(dāng)環(huán)境溫度在+20℃±5℃范圍內(nèi)波動(dòng)時(shí)，電容值變化不超過基本誤差的1/2。產(chǎn)品特別考慮了實(shí)際應(yīng)用場(chǎng)景需求，面板布局符合人體工程學(xué)，旋鈕操作手感順滑且定位清晰，適合頻繁調(diào)節(jié)的科研和檢測(cè)環(huán)境。隨機(jī)不包含電源適配器，使用時(shí)無需外接電源，即插即用。產(chǎn)品壽命周期內(nèi)提供常規(guī)維護(hù)指導(dǎo)，建議定期清潔觸點(diǎn)并檢查機(jī)械部件狀態(tài)。2914

Additional Technical Features

The capacitance box utilizes modular decade switching assemblies, with each decimal unit composed of multiple precision capacitors in parallel to create 1-10 steps. The fully shielded construction minimizes stray capacitance effects (residual capacitance ≤80pF). Operating at 50V RMS with optimal accuracy between 800-1000Hz, it features compensated temperature coefficients that limit capacitance variation to within half of basic error when ambient temperature fluctuates within +20℃±5℃. The ergonomic front panel design incorporates smooth-rotating knobs with positive detents, ideal for frequent adjustments in research and testing scenarios. No external power supply is required for operation. Routine maintenance includes periodic contact cleaning and mechanical inspection to ensure prolonged service life. Detailed operating guidelines are provided with the product.72022

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