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1、武汉市木森色毛有限以司WUHAN MUSEN ELECTRIC CO.,LTD.地址：武汉光谷广场鲁磨路11-1号电话：(027) 87513051 87516339传真：(027) 87512899邮编：430074网址：http:www.miiseii.coin.ciiE-mail： 电池型高压绝缘电阻测试仪BATTERY POWERED VOLTAGEINSULATION TESTERSMODEL DMH250V2502/2550/2503/2520使用说明书式汉市木麻色毛有限公司INSTRUCTIONMANUALWUHAN MUSEN ELECTRIC CO.,LTD.Contens页
2、号Page1、特性1Features 72、技术指标2Specifications 8-93、仪表结构3Instrument Layout 104、操作说明4-5Operating Instructions11-154-1机械调零4Mechanical Zero Adjustment*114-2电池检测4Battery Check1243绝缘电阻测试4Insulation Resistance Measurement* 134-4联系测量5Continuous Measurement* 1445接地保护端应用5Use of Guard Terminal* 155、电池更换6Battery Re
3、placement166、电池充电（C型）追求卓越努力超越5、Battery ReplacementRemove the battery compartmen cover by loosening the screw located on the back of the hosing case. Replace the whole battery pack. Alkaline batteries are recommended where the instrument is used at a temperature below the frsszing point The ordinary
4、manganese batteries will deteriorate below the frsszing point仁特性1-1本仪表适用于高压电力设备、电缆、变压器、电力 电容和高压开关等电气测试设备的绝缘测试。1-2本仪表采用电池供电，具有体积小。重量轻。便于携 带等优点，仪表内部自动量程转换电路的运用大大提高 了仪表的测量上限值。1-3硬质的包装机壳作为必要的配件，仪表各探头的外 壳都是塑料的紧密结构，具有很好的密封性和防水性。1-4采取低功耗设计，最大消耗电流为80mA（C型表为 500mA）, 8节1.5V五号电池在最大负载时能够连续工作 7小时，或者最小负载时，工作12小时（
5、不包括C型表）。1-5 C型表具有交,直流两用功能，短路电流在2mA以上, 并且可以在充电的同时使用仪表，充电部分采取智能方 式，提高了充电速度和充电效率。2、技术指标DC测试电压500V1000V2500V5000V10000V测屋范围O.5GQ；0.2-20 GQ自动转换0-1GQ/OjMOGQ自动转换0-2GQ/1-100自动转撫0-5 GQ； /2-200G堂自动转换M0GQ/4-400 G Q：自动转换ft度绝緣.阻抗悵度站C 50 湿度兰?佛谢 20hiaTOG 蛙读数的土 5% 苴他范圉时读数的10%温度2兀土兀 湿度兰？的-射 4弧IQ_戒爲 读数的土 苴赠苗围时 緩数的10%
6、温度231C 土 了它湿度兰？0%01 1G0MQ-5GGQ 谬数的土说 苴他范围时 读数的10%温度23鲨土 5兀 湿度圭?供谢 200M 虑-1QQGQ 读数的土 耳他范围时；读数的10%温度茁兀土湿度 4O0Mn20QGQ 读数的土 i% 苴他范围时 读数的10%辅出电压温度23Cd ,湿度兰？們时读数的3%孑苴他为读数的10%工作温度与湿度-1代丿0贮 85%保存温度与湿度-2ffC-WC 兰仍绝緣阻抗电賂与机壳间丈于1G灯耐压电跻与机壳间电压DOOOVAC ,承受:分钟尺寸200低能:140)哆3巩高嗣重量2kg左右电源8节i.5V(5号滇性环保电池盼件铝合金包装箱，；8节1.5V(
7、5号邈性环保电池，测试导线*产品说明书*念格证C型表附8节可充电池，AC/DC电源一牛4-5 Use of Guard TerminalIllustrated in Fig.2 is an example of the insulation resistance measurement of an electric wire. If the line probe is simply connected to the wrie conductor and the earth lead to the immersion liquid container as shown, a measuremen
8、t error will be intorduced as this results in the measurement and the surface leakage resistance at the cut end of the electric wire. In crder to remove this surface leakage current, wind a guard wire around the cut end of conductor and connect it to the guard teminal of the instrument using the gua
9、rd lead. Then, the indicating meter of the insulation resistance tester.4-4 Continuous MeasurementMake sure that circuit under test is earthed and that the test lead attached to the earth terminal of the instrument is connected to the earth side of the circuit under test Push the press to test butto
10、n and turn clockwise to lock for continuous measurement When making this measurement, good care must be taken against high voltage continuously present across the line ande earth terminals of the instrumentNote: Make certain that the circuit under does not include componets which will be damaged by
11、the high voltage applied.3、仪表结构图图1测试探头 接地保护端 地端指示高低范围发光二极管测试按钮功能开关 电池盖板充电指示直流电源插孔4、使用说明特别注意：当测试旋纽按下工作时蜂鸣器发声，提示有高压出 现在仪表的接线端和地端（LINE端和EARTH端），在 测试时，确保电路接地，通常仪表的接地保护端（GUARD 端）接大地。4-1机械调零功能开关置于OFF位，调表针指示在“co”刻度 上。用起子转动调零螺丝（安装在前面板的中央）。4-2电池检查功能开关置于BATT.CHECK位，按下测试按纽 ，当指针指示在BATT.GOOD区起始端向右，则电池 电量足够使仪表正常工
12、作，否则需更换电池或需充电（C 型）。2520型略有不同，将功能开关置于OFF位，按 下测试按纽并锁住，再按EAAT.CHECK键，即可电池 检查。注意：应避免此项长时间检测，因为此时将比绝缘 测试时消耗更大的电流。4-3绝缘阻抗测量通常仪表的功能开关置于OFF位，在进行测量时 将它置于MQ或GQ位，从仪表的地端和分别引出两 根测试线到被测物的地端和大地，再将仪表的探头接 被测物测试点并按测试纽（顺时针方向旋转后可自锁） 既可开始测量。注意：应确保测试电路中不含有易被咼压所损害的 元件。4-3 Insulation Resistance Measutrment with the functio
13、n switch set at OFF position, always connect the circuit under test to earth . Attach the lead to earth terminal of the instrument and connect to the earthed side of the cireuit under test. With the function switch set at MQ position for Model DMH2501 or GQ position for MODEL DMH 2550 or GQ position
14、 for MODEL DMH2503, place the line probe in contact with the circuit under test and operate the press to test button. When the green LED illuminates, read insulation resisance on the outer scale (for high range). Use the inner scale where the red LED illuminates. For insulation testing at 2500V and
15、5000V or 5000V and lOOOOA red the black and red scales respectively (for Model DMH2550 and DMH2503). After a test, release the press to test button and wait for seceral seconds without disconnecting the line probe from the circuit tested. This is intended to discharge the charge the charge stored in the circuit tested.4-2 Battery cheekWith the function switch set BATT. CHECK position operate the press to
