EXTECH7470/7472/7473/7474

特点及优点：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*高压触电装置Smart GFI(*: 169000)
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


性能参数：SPECIFICATIONSMODEL747Output Rating10KVAC/20mA12KVDC/10mA20KVAC/10mA20KVDC/5mAAC WITHSTAND VOLTAGE (7470&7473) RangeResolutionAccuracyOutput Voltage, ACV (for 7473)0 ?（2% of setting 20V）Output Voltage, ACV (for 7470)0 ?（2% of setting 10V）Output Frequency50Hz/60Hz ?100ppm, User SelectionOutput WaveformSine Wave ,THD.<2% (Resistive Load), Crest Factor = 1.3 - 1.5Output Regulation? (1% of output 10V), From no load to full loadSETTINGSHi / Lo -Limit AC Current, mA (for 7473)0 - 9.9990.001?（2% of setting 2counts）Hi / Lo -Limit AC Current, mA (for 7470)0 - 9.999/10.00 - 20.000.001/0.01?（2% of setting 2counts）Ramp Up Time, second0.1 - 999.90.1?（0.1% 0.05sec）Ramp Down Time, second0.0 - 999.90.1Dwell Time0, 0.3 - 999.9 sec (0=continuous)0.10, 0.1 - 999.9 min (0=continuous)0.10, 0.1 - 999.9 hr (0=continuous)0.1Cycle Test0 - 9999 Times, (0=continuous)Arc DetectionRange 1 - 7 > 15kV , Range 1 - 9 < 15kVAC Current Offset, mA0 - 2.000 or Auto Set ( Option )MEASUREMENTAC Voltage, KV (for 7473)0 - 20.000.01?（2% of reading 2counts）AC Voltage, KV (for 7470)0 - 10.000.01?（2% of reading 2counts）AC Current Range, mA0-3.5000.001?（2% of reading 3counts）3.00-10.00 (for 7473)0.013.00-20.00 (for 7470)0.01DC WITHSTAND VOLTAGE (7472&7474)Output Voltage, DCV (for 7474)0 ?（2% of setting 20V）Output Voltage, DCV (for 7472)0 ?（2% of setting 10V）Output Ripple<5%（在20KV/5000礎 for 7474, 12KV/9999礎 at Resistive Load for 7472）SETTINGSHi / Lo -Limit DC Current, 礎 (for 7474)0.0 - 999.9/1.1/1?（2% of setting 2counts）Hi / Lo -Limit DC Current, 礎 (for 7472)0.0 - 999.9/1.1/1?（2% of setting 2counts）Ramp Up Time, second0.4 - 999.90.1?（0.1% 0.05sec）Ramp Down Time, second0.0,1.0 - 999.90.1Dwell Time0, 0.4 - 999.9 sec (0=continuous)0.10, 0.1 - 999.9 min (0=continuous)0.10, 0.1 - 999.9 hr (0=continuous)0.1Cycle Test0 - 9999 Times, (0=continuous)Arc DetectionRange 1 - 9 (9 is the most sensitivity)DC Current Offset, 礎0.0 - 200.0 or Auto Set (Option )Ramp High CurrentON/OFF, User SelectionCharge - Low Current, 礎0.0 - 350.0 or Auto SetDischarge Time< 200 msecMaximum Capacitive Load1.5礔 < 2KV 0.15礔 < 8KV 0.12礔 < 14KV 0.08礔 < 20KV0.28礔 < 4KV 0.15礔 < 10KV 0.1礔 < 16KV0.18礔 < 6KV 0.12礔 < 12KV 0.08礔 < 18KVMEASUREMENTDC Voltage, KV (for 7474)0 - 20.000.01?（1.5% of reading 2count）DC Voltage, KV (for 7472)0 - 10.000.01?（1.5% of reading 2count）DC Current Range, 礎0-350.00.1? (2% of reading 3counts)300-35 (for 7474)
3000-9999 (for 7472)10GENERALInput Voltage AC115/230VAC ? 15% , 50/60Hz ? 5% Fuse: 6.3A SlowPLC Remote ControlInput : Test , Reset , Memory1.2.3 ,InterlockOutput : P* , Fail , ProcessingSafetySmart-GFI Function (<1mA)Memory50 memoriesDisplay20*2 LCD with back light