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標題:交直流兩用直流電阻測試儀
產品概述
產品概述:
交直流兩用直流電阻測試儀以微控制器為核心,內置充電電池及充電電路,采用A/D轉換器及多量程程控電流源技術,實現了寬范圍電阻測量,達到了測量效果及高度自動化測量功能,具有精度高,測量范圍寬,數據穩定,重復性好,抗干擾能力強,保護功能完善,充放電速度快等特點。尤其適合野外無電源條件及互感器等大阻值繞組測量。該儀器體積小、重量輕、便于攜帶。
功能及特點(dian):
1交直流兩用直流電阻測試儀,采用16位A/D轉換器,測量數據穩定,重復性好。
2內置(zhi)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池及快速充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)路(lu),具有充(chong)電(dian)(dian)(dian)指示及過(guo)充(chong)電(dian)(dian)(dian)保護(hu)功能。
3直(zhi)流電(dian)阻測試儀,自(zi)(zi)動(dong)程控(kong)(kong)電(dian)流源技術(shu),既(ji)可(ke)手動(dong)選擇典型值輸出電(dian)流也可(ke)由(you)內(nei)部微(wei)控(kong)(kong)制(zhi)(zhi)器自(zi)(zi)動(dong)控(kong)(kong)制(zhi)(zhi)輸出電(dian)流,電(dian)流源內(nei)部共設(she)3000個電(dian)流檔(dang)位,在自(zi)(zi)動(dong)狀態下,由(you)內(nei)部微(wei)控(kong)(kong)制(zhi)(zhi)器根據被測電(dian)阻自(zi)(zi)動(dong)控(kong)(kong)制(zhi)(zhi),從而(er)達到比(bi)較寬(kuan)的測量(liang)范(fan)圍和測量(liang)狀態。
4實時動態顯示(shi),響應速度快,可在(zai)測(ce)量狀態直(zhi)接轉換分接開關(guan),儀(yi)器(qi)會自動提示(shi),新的電阻值很快就(jiu)會顯示(shi)出來,無須重(zhong)新啟動。
5高(gao)度智能(neng)化設計,功能(neng)設置巧妙*,可自動判斷測(ce)試線虛接(jie)、斷線等(deng)故障(zhang)。
6保護(hu)功(gong)能(neng)完善,能(neng)可靠保護(hu)反電勢對(dui)儀器的沖(chong)擊,具有(you)自動放電指示功(gong)能(neng)。
7可顯(xian)示測(ce)量電流和測(ce)量時間。
8可儲存250次測量數據,掉電(dian)不丟失。
9全部漢字菜單(dan)及操作提示,直觀方(fang)便(bian)。
操作方法:
1.電(dian)阻測量:
儀器開機(ji)或(huo)按復位(wei)鍵后,進入(ru)
初始狀(zhuang)(zhuang)態(tai)(1)。使光標(biao)指針指向“電(dian)(dian)阻測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)”,按(an)“確定(ding)”鍵進(jin)入(ru)狀(zhuang)(zhuang)態(tai)(2),顯示(shi)電(dian)(dian)流(liu)(liu)選擇(ze)列表。不同電(dian)(dian)流(liu)(liu)檔的(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)范(fan)(fan)圍見下表,可參考選擇(ze),自(zi)動檔可達到(dao)技術指標(biao)中對應型號所列的(de)(de)整(zheng)個(ge)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)范(fan)(fan)圍,自(zi)動選擇(ze)電(dian)(dian)流(liu)(liu)的(de)(de)原則是盡(jin)量(liang)(liang)(liang)(liang)(liang)使用較大的(de)(de)電(dian)(dian)流(liu)(liu)。使光標(biao)指向所需要(yao)的(de)(de)輸出電(dian)(dian)流(liu)(liu),按(an)“確定(ding)”鍵進(jin)入(ru)狀(zhuang)(zhuang)態(tai)(3),顯示(shi)變化的(de)(de)充電(dian)(dian)電(dian)(dian)流(liu)(liu)和(he)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)時間,#SUPERMAN是設備編號,用戶可任(ren)意輸入(ru)修改(gai),MN表示(shi)該被測(ce)(ce)(ce)(ce)設備測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)次(ci)數,充電(dian)(dian)完成后自(zi)動顯示(shi)電(dian)(dian)阻值(zhi),此時每按(an)一次(ci)“確定(ding)”鍵則儲(chu)存一次(ci)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)結果,測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)次(ci)數MN加1。按(an)“取消”或(huo)“復(fu)位”鍵退出電(dian)(dian)阻測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang),進(jin)入(ru)狀(zhuang)(zhuang)態(tai)(4),顯示(shi)正在放電(dian)(dian)。放電(dian)(dian)結束后,自(zi)動回到(dao)初始狀(zhuang)(zhuang)態(tai)(1),完成一次(ci)電(dian)(dian)阻測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)
2.參(can)數設置
參數設(she)(she)置即(ji)輸(shu)(shu)(shu)入設(she)(she)備(bei)編(bian)號,輸(shu)(shu)(shu)入設(she)(she)備(bei)編(bian)號有助于數據(ju)區(qu)分及(ji)內(nei)存數據(ju)的查找,在初始(shi)狀(zhuang)態(1),使光標(biao)指針指向“參數設(she)(she)置”,按(an)“確定”鍵進入狀(zhuang)態(5),提示(shi)輸(shu)(shu)(shu)入新設(she)(she)備(bei)編(bian)號,此(ci)時按(an)“▲”或“▼”鍵可使當前輸(shu)(shu)(shu)入位(wei)從‘0’到‘9’,再從‘A’到‘Z’循環顯(xian)示(shi),按(an)“?”鍵輸(shu)(shu)(shu)入下一位(wei),按(an)“取(qu)消(xiao)”鍵取(qu)消(xiao)當前輸(shu)(shu)(shu)入位(wei),直至(zhi)退出輸(shu)(shu)(shu)入狀(zhuang)態,輸(shu)(shu)(shu)入字符不能超(chao)過6個,輸(shu)(shu)(shu)入完畢按(an)“確定”鍵回到狀(zhuang)態(5),顯(xian)示(shi)新輸(shu)(shu)(shu)入設(she)(she)備(bei)編(bian)號。輸(shu)(shu)(shu)入新設(she)(she)備(bei)編(bian)號后,被測
設(she)備測量(liang)序號自(zi)動置1。
3.內存(cun)操(cao)作:
在(zai)初始狀態(tai)(tai)(1),將(jiang)光標(biao)移至“查看內存(cun)(cun)(cun)”按(an)“確定”鍵(jian)(jian)進(jin)入狀態(tai)(tai)(6), 顯示(shi)當前(qian)存(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)(qi)記錄(lu)(lu)總數及操作(zuo)提(ti)示(shi),此時按(an)“▲”或(huo)“▼”鍵(jian)(jian)可(ke)進(jin)入狀態(tai)(tai)(8) ,按(an)時間順(shun)序查看存(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)(qi)記錄(lu)(lu)內容,ABC123表示(shi)該記錄(lu)(lu)設備編(bian)號,MN表示(shi)該設備第MN個電阻(zu)值,同時按(an)“▲”和(he)“▼”鍵(jian)(jian)將(jiang)清除存(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)(qi)全(quan)部數據,按(an)“取消”或(huo)“復位(wei)”鍵(jian)(jian)退出內存(cun)(cun)(cun)操作(zuo)返回狀態(tai)(tai)(1)。存(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)(qi)多(duo)可(ke)存(cun)(cun)(cun)儲(chu)(chu)(chu)250次測量結果,超過250次以后老的記錄(lu)(lu)將(jiang)被覆蓋。存(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)(qi)內容在(zai)斷電條件下可(ke)長期(qi)保持不丟失。
4.內置(zhi)電池及充電
當內置電(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)壓不(bu)足時(shi)儀(yi)(yi)器(qi)(qi)(qi)不(bu)能正(zheng)常顯示和工作,需要充電(dian)(dian)(dian)(dian)(dian),只需將儀(yi)(yi)器(qi)(qi)(qi)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源接到220V交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源即可(ke),不(bu)用打開儀(yi)(yi)器(qi)(qi)(qi)工作電(dian)(dian)(dian)(dian)(dian)源,儀(yi)(yi)器(qi)(qi)(qi)有(you)充電(dian)(dian)(dian)(dian)(dian)指示,充電(dian)(dian)(dian)(dian)(dian)時(shi)指示燈亮,當電(dian)(dian)(dian)(dian)(dian)池(chi)充滿(man)時(shi)內部充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)路自(zi)動關閉,充電(dian)(dian)(dian)(dian)(dian)指示燈熄滅。對于3A型儀(yi)(yi)器(qi)(qi)(qi),電(dian)(dian)(dian)(dian)(dian)池(chi)充滿(man)后可(ke)在(zai)大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)下連續工作約2小時(shi)。
注意事(shi)項:
1、由于本設備輸出電流范圍較大,在測量之前一定要考慮電流選擇不要超過被測設備承受范圍,過大的電流會導致被測電阻因電流熱效應而發生阻值逐漸變化。
2、自動電流擋的輸出電流是盡量使用較大的電流,可能輸出從0到大值的各種電流。
3、同一個測試鉗的兩條線要分別接到同顏色的電流和電壓接線柱。
4、每次測試完畢后,等待放電指示結束后再拆測試線,操作者應注意安全。
5、存儲器多可存儲250次測量結果,超過250次以后老的記錄將被覆蓋。
6、測量過程中若出現異常情況,請按復位鍵或關機,若無法恢復正常請和本公司聯系,不得自行拆卸。