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台湾华仪EXTECH,7470 超高压耐压测试仪简介:
直流耐压测试仪,12KV,10mA,键盘锁定功能。
型号
7470 ACW (10kV/20mA)
7472 DCW (10kV/20mA)
7473 ACW (20kV/10mA)
7474 DCW (20kV/5mA)
产品特点
7473 交流输出20KV / 10mA
7470 10KV/ 20mA
7474 直流输出20KV / 5mA
7472 12KV/ 10mA
20×2 点矩阵LCD 显示器
内含智能型防高压触电装置Smart GFI(专利
全范围输出稳压率可达1%
内建50组程序记忆;记忆组间可进行连结测试
内建远程控制界面
键盘锁定功能
可选购界面GPIB,RS232或Printer Card
产品测试应用范围
马达&发电机
火星塞
电容器
连接器
航空组件
变压器
医疗器具
电线&电缆
铁心&电感
开关&继电器
技术参数
SPECIFICATIONS
MODEL
7470
7472
7473
7474
Output Rating
10KVAC/20mA
12KVDC/10mA
20KVAC/10mA
20KVDC/5mA
AC WITHSTAND VOLTAGE (7470&7473)
Range
Resolution
Accuracy
Output Voltage, ACV (for 7473)
10
±(2% of setting + 20V)
Output Voltage, ACV (for 7470)
10
±(2% of setting + 10V)
Output Frequency
50Hz/60Hz ±100ppm, User Selection
Output Waveform
Sine Wave ,THD.<2% (Resistive Load), Crest Factor =
Output Regulation
± (1% of output + 10V), From no load to full load
SETTINGS
Hi / Lo -Limit AC Current, mA (for 7473)
0.001
±(2% of setting + 2counts)
Hi / Lo -Limit AC Current, mA (for7470)
±(2% of setting + 2counts)
Ramp Up Time, second
0.1
±(0.1% + 0.05sec)
Ramp Down Time, second
0.1
Dwell Time
9 sec (0=continuous)
0.1
9 min (0=continuous)
0.1
9 hr (0=continuous)
0.1
Cycle Test
Times, (0=continuous)
Arc Detection
Rangegt; 15kV , Rangelt; 15kV
AC Current Offset, mA
r Auto Set ( Option )
MEASUREMENT
AC Voltage, KV (for 7473)
0.01
±(2% of reading + 2counts)
AC Voltage, KV (for 7470)
0.01
±(2% of reading + 2counts)
AC CurrentRange, mA
0-3.500
0.001
±(2% of reading + 3counts)
for 7473)
0.01
for 7470)
0.01
DC WITHSTAND VOLTAGE (7472&7474)
Output Voltage, DCV (for 7474)
10
±(2% of setting + 20V)
Output Voltage, DCV (for 7472)
10
±(2% of setting + 10V)
Output Ripple
<5%(在20KV/5000μA forKV/9999μA at Resistive Load for 7472)
SETTINGS
Hi / Lo -Limit DC Current, μA (for 7474)
0.1/1
±(2% of setting + 2counts)
Hi / Lo -Limit DC Current, μA (for 7472)
0.1/1
±(2% of setting + 2counts)
Ramp Up Time, second
0.1
±(0.1% + 0.05sec)
Ramp Down Time, second
.9
0.1