主要特点
交/直流耐压、绝缘阻抗、接地阻抗测试 20 × 2 点矩阵OLED 显示器可选配内建4组或8组高压矩阵式扫描信道(7420, 7430 & 7440) 内建50组程序记忆、每一组8个测试步骤可进行程序记忆步骤的连结测试测试线路阻抗自我归零校整功能，确保测试结果的准确性前面板软件输入校正内建PLC Remote遥控界面键盘锁定功能可外接标准GPIB、USB & RS232、Printer Card 作控制全范围电压输出的稳压率在1%以内
详细介绍
介绍；
MODEL
7410
7420
7430
7440
AC WITHSTAND VOLTAGE
Output Rating
5KVAC / 30mA
5KVAC / 30mA
5KVAC / 40mA
5KVAC / 40mA
Range
Resolution
Accuracy
Output Voltage,ACV
0 - 5000
1
±（2% of setting + 5V）
Output Frequency
50Hz / 60Hz ± 0.1%, User Selectable
Output Waveform
Sine Wave ,THD. < 2% (Resistive Load), Crest Factor = 1.3 - 1.5
Output Regulation
± (1% of output + 5V), From no load to full load
SETTINGS
Hi-Limit AC Current, mA
0 - 30.00
0 - 30.00
0 - 40.00
0 - 40.00
Resolution : 0.01, Accuracy : ±（2% of setting + 3counts）
Lo-Limit AC Current, mA
Range : 0 - 9.999
Resolution : 0.001, Accuracy : ±（2% of setting + 3counts）
Ramp Time, second
0.1 - 999.9
0.1
±（0.1% + 0.05sec）
Dwell Time, second
0, 0.3 - 999.9
(0=continuous)
0.1
Arc Detection
The range is from 1 - 9 (9 is the most sensitive)
AC Current Offset, mA
0 - 2.000 or Auto Set
DC WITHSTAND VOLTAGE
Output Rating
6KVDC/9999µA
Output Voltage, DCV
0 - 6000
1
±（2% of setting + 5V）
Output Ripple
< 5% (6KV / 9999 μA at Resistive Load)
SETTINGS
Hi-Limit DC Current, µA
0 - 9999
1
±（2% of setting + 3counts）
Lo-Limit DC Current, µA
0 - 999.9
0.1
±（2% of setting + 3counts）
Ramp Time, second
0.1 - 999.9
0.1
± (0.1% of setting + 0.05s)
Dwell Time, second
0, 0.4 - 999.9
(0=continuous)
0.1
Arc Detection
The range is from 1 - 9 (9 is the most sensitive)
DC Current Offset, ?A
0 - 200.0 or Auto Set
Ramp High Current
ON/OFF, User Selectable
Charge - Low Current, µA
0 - 350.0 or Auto Set
Discharge Time
≦200 msec
INSULATION RESISTANCE
Output Rating
1KVDC / 9999MΩ
Output Voltage, DCV
100 - 1000
1
± (2% of setting + 3V)
Hi-Limit Resistance, MΩ
0, 1 - 9999 (0=OFF)