一、概述:包含DHV-1A、DHA-1A、DHA-2A等型號(hào),量程由直鍵開關(guān)切換。它們可與熱電偶測溫、PN結(jié)測量、非線性元件的V-I特性曲線測量等實(shí)驗(yàn)配套使用。帶存儲(chǔ)功能。二、技術(shù)參數(shù)及性能:型號(hào)量程范圍分辨率精度DHV-1A型直流電壓表0~19.999mV0~199.99mV0~1.9999V0~19.999V2 V10 V100 V1mV (0.2%+2個(gè)字) (0.1%+1個(gè)字) (0.1%+1個(gè)字) (0.1%+1個(gè)字)DHA-1A型直流電流表0~1.9999mA0~19.999mA0~199.99mA1 A10 A100 A (0.1%+1個(gè)字)DHA-2A型直流電流表0~19.999mA0~199.99mA0~3.9999A1 A10 A0.1mA (0.1%+2個(gè)字)