技術(shù)參數(shù)Technical parameters
測(cè)量中性點(diǎn)不接地（IT）系統(tǒng)。Measuring neutral No grounding(IT) systems.
監(jiān)測(cè)500V以下交流電網(wǎng)的絕緣電阻。
Monitoring the insulation at the AC network system below 500V.
當(dāng)電網(wǎng)絕緣電阻低于設(shè)定值時(shí)輸出一報(bào)警信號(hào)。
To output alarm signal will generate if the resistance lows then the set value.
輸出指示精度 Accuracy of indication：⑩.
報(bào)警精度Accuracy of alarm:10KΩ±3KΩ；30KΩ±3KΩ；60KΩ±6KΩ；100KΩ±10KΩ；200KΩ±20KΩ；500KΩ±50KΩ；1000KΩ±100KΩ；
環(huán)境溫度 Ambient temperature range：0℃ to +55℃。
外殼防護(hù)Housing protection：IP20。
耐電壓 Dielectric test：AC2.6KV，50HZ，1min。
輸出觸點(diǎn)容量 Contact rating：AC250V，3A；DC28V，3A。
電源功耗 Power consumption：≤10VA。
工作電源Aux.power：AC220V±20%。50/60HZ
使用說(shuō)明書(shū)Directions for use
儀器正確連接后，接通電源到額定電壓，工作指示燈亮，儀器即處于監(jiān)測(cè)狀態(tài)；當(dāng)絕緣電阻值低于設(shè)定值時(shí)發(fā)出一報(bào)警信號(hào)。After the instrument is connected correctly, the power supply is connected to the rated voltage, and the work indicator light is on, the instrument is in the monitoring state; An alarm signal is sent when the insulation resistance value falls below the set value.
如需判別儀器工作是否正常時(shí)可進(jìn)行自檢，此時(shí)報(bào)警紅燈點(diǎn)亮，報(bào)警輸出端發(fā)生變化，常閉端轉(zhuǎn)換成常開(kāi)，常開(kāi)端轉(zhuǎn)換成常閉；自檢完畢后必須將儀器恢復(fù)到正常測(cè)量檔位上。If it is necessary to determine whether the instrument works normally, self-check can be carried out. At this time, the alarm red light is lit, the alarm output end changes, the normally closed end is converted to normally open, and the normally open beginning is converted to normally closed. The instrument must be returned to the normal measuring gear after self - check.
接岸電時(shí)，由于岸電系統(tǒng)為接地系統(tǒng)，儀器會(huì)發(fā)出誤報(bào)警，此時(shí)可將開(kāi)關(guān)調(diào)整到“岸電”檔；但輸出常開(kāi)、常閉觸點(diǎn)不會(huì)發(fā)生轉(zhuǎn)換動(dòng)作，無(wú)報(bào)警輸出。When answering ? shore power, due to shore power system for the grounding system, instruments have a false alarm, the switch can be adjusted to "shore power"; But the output normally open and normally closed contacts will not have conversion action, no alarm output.
外接指示表頭輸出信號(hào)為0-1mA電流信號(hào)，用于驅(qū)動(dòng)外接指示儀表；而該輸出電流信號(hào)與絕緣監(jiān)測(cè)儀相對(duì)應(yīng)關(guān)系，顯示儀表標(biāo)牌顯示∞-0.2-0MΩ（0-1mA）。The output signal of the external indicator head is 0-1mA current signal, which is used to drive the external indicator meter; The output current signal is corresponding to the insulation monitor, and the display instrument label shows ∞-0.2-0MΩ (0-1mA).
儀器可用在各種船舶配電板、礦井、醫(yī)療、空調(diào)、充電樁、電站等各種IT配電電網(wǎng)系統(tǒng)上面使用。The instrument can be used in all kinds of SHIP switchboard, mine, medical treatment, air conditioning, charging pile, power station and other IT power distribution system.
