共立絕緣/導(dao)(dao)通(tong)測試(shi)儀3005A 絕緣電(dian)(dian)阻(zu)值長條圖顯(xian)(xian)示. 閃爍符號顯(xian)(xian)示外(wai)部交流電(dian)(dian)壓值. 自動(dong)歸零(ling)功能減少測試(shi)線(xian)阻(zu)抗(kang),得(de)到(dao)導(dao)(dao)通(tong)阻(zu)抗(kang)測量真實值. 檢測到(dao)帶電(dian)(dian)線(xian)路有蜂鳴警示. 釋放(fang)測試(shi)按鈕(niu)后,自動(dong)釋放(fang)線(xian)路上測量時所存儲的電(dian)(dian)量.