一、产品特性
DY-3150数字式等电位测试仪又名微欧计、欧姆计、直流接地电阻测试仪,采用 微处理机技术,四线法测试, 可靠。是检测设备外壳、避雷带、地梁、构造、机柜、钢筋、水管、窗户、护栏、散热器、流水线等对象的金属构件之间等电位联结质量的专用仪表,也可以测量各种电气设备与地网地极间的连接导体的电阻,变压器直流电阻,还可以测量开关、插座触点的接触电阻、线圈、金属导线、焊接点等低值电阻。广泛应用于电信、电力、气象、机房、油田、电力配电线路、铁塔输电线路、加油站、工厂接地网、避雷针等。还具备测量直流电压和交流电压功能。 DY-3150数字式等电位测试仪由主机、监控软件、测试线、通讯线等组成。主机大屏LCD显示,一目了然。能存储500组数据,电阻测量范围:0.0001Ω~30KΩ,直流电压范围:0.0~1000V,交流电压范围:0.0~750V。监控软件具有在线实时监控与历史查询功能,动态显示,具有报警值设定及报警指示功能,具有历史数据读取、查阅、保存、报表、打印等功能。
二、技术参数
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功 能
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金属构件之间等电位联结电阻测试,低值电阻测试,地网地极间连接导体的电阻测试,接触电阻测试等
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直流电阻量程
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0.0001Ω~30.00KΩ 精度±1%rdg±5dgt
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电阻分辨率
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0.0001Ω
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检测方法
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四线法测试
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测试电流
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≥1A
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开路电压
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≤7V
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功 率
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测量功率≤15W
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直流电压量程
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0.0V~1000V DC 精度±1.5%rdg±5dgt
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直流电压分辨率
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0.1V
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交流电压量程
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0.0V~750V AC 精度±1.5%rdg±3dgt
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交流电压分辨率
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0.1V
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电 源
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DC 6V 4.5Ah大容量电池 连续待机100小时以上
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背 光
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可控灰白屏背光,适合昏暗场所使用
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显示模式
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4位超大LCD显示,灰白屏背光
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测量指示
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测量中LED闪烁指示,LCD倒计数显示
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LCD尺寸
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108mm×65mm
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仪表尺寸
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长宽高:277.2mm×227.5mm×153mm
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测试线长
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红色5m,黑色5m各2条
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测量时间
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电阻测试:约3秒/次;电压测试:约2次/秒
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USB接口
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具有USB接口,软件监控,存储数据可以上传电脑,保存打印
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通 讯 线
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USB通讯线1条
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数据存储
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500组,“MEM”存储指示,显示“FULL”符号表示存储已满
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数据查阅
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数据查阅功能:“MR”符号显示
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溢出显示
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超量程溢出功能:“OL”符号显示
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报警功能
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测量值超过报警设定值时发出报警提示
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电池电压
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电池电量实时显示,电池电压低时提醒及时充电
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自动关机
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“APO”指示,开机15分钟后自动关机
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功 耗
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待机: 30mA Max(背光关闭)
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开机开背光: 43mA Max
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测量:2A Max(背光关闭)
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质 量
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仪表: 2397g(含电池)
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测试线:850g(含简易测试线)
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仪表箱:1200g
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工作温湿度
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-10℃~40℃;80%rh以下
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存放温湿度
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-20℃~60℃;70%rh以下
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过载保护
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C1-C2 P1-P2各端口间AC 280V/3秒
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绝缘电阻
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10MΩ以上(电路与外壳之间500V)
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耐 压
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AC 3700V/rms(电路与外壳之间)
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电磁特性
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IEC61010-4-3,无线频率电磁场≤1V/m
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适合安规
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IEC61010-1、CAT Ⅲ 600V、污染等级2、JJG724-1991《直流数字式欧姆表检定规程》、JJG166-1993《直流电阻器检定规程》、《DL/T967-2005回路电阻测试仪与直流电阻快速测试仪检定规程》
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