接地測試儀

KYORITSU MODEL 4200鉗式接地電阻測試儀

KYORITSU MODEL 4200鉗式接地電阻測試儀

• 在多點接地系統中,可無需輔助接地棒量測0.05~1500Ω的接地電阻
• 可量測0.1mA~30.0A的真有效值漏電或相電流,為接地網絡提供重要資訊
• 濾波功能可增強對電氣雜訊的抗干擾能力,當環境噪音過高時會顯示「NOISE」標記
• 最多可儲存100筆測量資料
注意:無法測量單一接地點,只適用於多點接地系統
詳細介紹

Specification
Earth resistance (Auto-ranging) 20.00/200.0/1500Ω
±1.5%±0.05Ω(0.00 to 20.99Ω)
*1
±2%±0.5Ω(16.0 to 99.9Ω)
±3%±2Ω(100.0 to 209.9Ω)
±5%±5Ω(160 to 399Ω)
±10%±10Ω(400 to 599Ω)
Values are displayed, but accuracy isn't guaranted(600 to 1580Ω)
AC current (50/60Hz)
(Auto-ranging)
100.0/1000mA/10.00/30.0A
±2%±0.7mA(0.0 to 104.9mA)
±2%(80mA to 31.5A)
Operating indication Earth resistance function :
   Constant voltage injection
   Current detection (Frequency : Approx.2400Hz)
   Dual Integration
AC current function : Successive approximation
Over-range indication "OL"is displayed when input exceeds the upper limit of a measuring range
Response time Approx. 7 seconds (Earth resistance)
Approx. 2 seconds (AC current)
Sample rate Approx. 1 times per second
Current consumption Approx. 50mA (max.100mA)
Measurement time Approx.12 hours (when R6 is used)
Approx.24 hours (when LR6 is used)
Auto power off Turns power off about 10 minutes after the last button operation.
Conductor size Approx. Ø32mm
Applicable standards IEC 61010-1 CAT Ⅳ 300V Pollution degree2
IEC 61010-2-032, IEC 61326 (EMC)
Power source LR6/R6 (AA)(1.5V) x 4
Dimension 246(L)×120(W)×54(D)mm
Weight Approx. 780g (including batteries)
Accessories 8304 (Resister for operation check)
9166 (Carrying case[Hard])
R6 x 4, Instruction manual 
* Crest factor 2.5 (50/60Hz, peak value shall not exceed 60A)
*1 4 counts or less are corrected to 0.