上海四達電子SDT-21A/SDT21A
產(chǎn)品概述
上海四達電子儀表有限公司生產(chǎn)的SDT-21A數(shù)字萬用表是一款多功能便攜式測量儀器，適用于電子電路檢測和日常電氣維修。該產(chǎn)品采用2000計數(shù)LCD顯示屏，支持手動量程切換，能夠精確測量直流/交流電壓、直流電流、電阻等基本電學(xué)參數(shù)。外觀設(shè)計符合人體工程學(xué)原理，配備防滑握柄和清晰的功能標(biāo)識，操作界面直觀簡潔。產(chǎn)品尺寸適中，重量輕便，便于攜帶和現(xiàn)場使用。15
功能特點
SDT-21A具備二極管測試和通斷測試功能，可快速判斷電路導(dǎo)通狀態(tài)和半導(dǎo)體元件極性。產(chǎn)品采用低功耗設(shè)計，配備電池電量顯示功能，避免因電量不足導(dǎo)致測量誤差。測量時支持?jǐn)?shù)據(jù)保持功能，方便用戶記錄關(guān)鍵數(shù)值。安全性能方面，該產(chǎn)品采用符合行業(yè)規(guī)范的絕緣材料，確保操作安全。產(chǎn)品標(biāo)配測試線、說明書和便攜包裝，滿足基礎(chǔ)測量需求。18
技術(shù)參數(shù)
在直流電壓測量方面，SDT-21A提供200mV至600V多檔位選擇，基本精度為±(0.5%+5)。交流電壓測量范圍為200V至600V，精度±(1.2%+10)。直流電流測量覆蓋20μA至200mA多個量程，10A大電流檔位可滿足特殊測量需求。電阻測量范圍從200Ω至2MΩ，基本精度±(0.8%+5)。產(chǎn)品使用標(biāo)準(zhǔn)1.5V電池供電，具有自動關(guān)機功能以延長電池壽命。111
英文介紹
The SDT-21A digital multimeter from Shanghai Sida Electronic Instrument Co., Ltd is a compact handheld device for electrical measurement applications. It features a 2000-count LCD display with manual ranging capability, measuring DC/AC voltage up to 600V, DC current to 10A, and resistance up to 2MΩ. The unit incorporates diode test and continuity check functions with audible indication. Safety-designed test leads and ergonomic housing ensure comfortable operation. Battery low indication and auto power-off function help maintain measurement reliability. The product comes complete with test probes, user manual and storage case for field service convenience. Its lightweight design (approximately 200g) makes it suitable for mobile troubleshooting in electronics maintenance and household electrical inspection scenarios. 158
SDT-21A，數(shù)字萬用表
的詳細(xì)介紹上海四達電子SDT-21A/SDT21A
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