simpson的中文名是辛普森,产自美国,他们主要是做泄露电流测试仪、电流表、电压表、万用表等,他们生产最高质量的表畅销全球,其中simpson型号里的的228和229-2的型号已写入国际标准,还被IEC国际电工委员会推荐为比对的产品,在中国大陆的已有大部分实验室,检测机构都用到simpson228和simpson229-2了,常用的型号我们一般都备有现货 常有些人会问,simpson228和simpson229-2的区别在哪里?simpson228是交直流泄漏电流表,simpson229-2就是交流泄漏电流表。可以根据您的实际情况来选型。 Simpson228概述: Simpson228 AC/DC泄漏电流表产品简介 Simpson228 AC/DC泄漏电流表主要测试AC/DC泄漏电流,设计符合最新的UL、IEC和ANSI规格。Simpson228查出当前AC和DC漏出并且模仿人的反应在三个不同水平 -- 反应,放弃,以及灼伤危险。每个Simpson228具有弹簧夹、指南和电池以及测试笔。 ◆查出危险AC & DC 泄漏电流在电子或电子设备导电性表面 ◆设计遇见新的IEC、ANSI和UL指南 ◆反应,放弃和无重负的烧伤危险网络测量 ◆电池操作为最大轻便 simpson228详细参数 Opecifications GENERAL Reaction ResponseNetwork Let-Go ResponseNetwork UnweightedBurnHazard Response Network Equivalent network component values: Complies with values specified in IEC 990 (excluding fuse) Equivalent measuring instrument load: 1 MΩ- 10pF 1 MΩ- 62 pF 1 MΩ- 1 pF Ranges: 0.3, 1, 3, 10 M.I.U. 0.3, 1, 3, 10 M.I.U. 0-100 mA RMS Current accuracy: ±2% F.S. @ 60 Hz Meter measurement method: True RMS Meter frequency response: (Relative to ANSI C101-1992 or UL-1459 2nd edition) DC to 1 Hz Pointer shall track within 5% of peak 2Hz to 19Hz (Accuracy not supported) 20 Hz to 200 KHz ±2% F.S. ±2.5% of F.S. ±2% F.S. 200 KHz to 1 MHz ±2% F.S. ±2.5% F.S. ±5% F.S. Output sensitivity: Full scale meter indication equals 1V RMS (Measured with a 1 MΩ- 12 pF load) Output accuracy: ±2% of reading @ 60 Hz Output frequency response: (Relative to ANSI C101-1992 or UL-1459 2nd edition) DC to 50Hz ±2% of reading 50 Hz to 100 KHz ±2.5% of reading ±2% /-3% of reading ±2% of reading 100 kHz to 1 MHz ±5% of reading Voltmeter range: 0-300 V (AC or DC) Voltmeter accuracy: DC to 1 Hz Pointer shall track within 5% of peak 2Hz to 19Hz (Accuracy not supported) 20 Hz to 1KHz ±3% F.S. @ 60 Hz (Add ±1% for every additional 100Hz) Voltmeter frequency response: DC to 1 KHz Power requirements: Power requirements: (2) 9V (NEDA 1604A) batteries Physical: 7¨ x 5.25¨ x 3.125¨, 2-1/2 lbs (1.4kg), ABS plastic,fusedinput Environmental: 27°C ±2° C, 70% non condensing relative humidity. Outside thisrangederate by 10% per °C Maximum operating range: 0° to 40° C