5
50
501
502
503
504

Tonghui TH2690 Series Electrometer

Uni-T UT513 Megohmmeter
Tonghui TH8601 Cable Testers

分类：

描述

Electrometer

模型 fA meter/ Electrometer/

High Resistance Meter

 pA meter/

绝缘电阻表

 fA meter pA meter

TH2690

 TH2690A TH2691 TH2691A
Measurement resolution 6½ Digit
Current measurement 0.1fA – 20嘛 0.01pA – 20嘛 0.1fA – 20嘛 0.01pA – 20嘛
Minimum range 20pA 2nA 20pA 2nA

Resistance measurement

 10PΩ 10TΩ ——- ——
电压测量 1μV – 20V 1μV – 20V —— ——
Input resistance >200TΩ >200TΩ —— ——
Charge measurement 1fC – 2μC ——- —— ——
Temperature measurement √ √ —— ——
Humidity measurement √ √ —— ——
power source ±1000V ±1000V —— ——
最小分辨率 700μV 700μV ——