台湾华仪 EXTECH 超高压耐压测试仪 7474

台湾华仪EXTECH，7472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。
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: 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 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)
0 - 20000
10
±（2% of setting + 20V）
Output Voltage, ACV (for 7470)
0 - 10000
10
±（2% of setting + 10V）
Output Frequency
50Hz/60Hz ±100ppm, User Selection
Output Waveform
Sine Wave ,THD.<2% (Resistive Load), Crest Factor = 1.3 - 1.5
Output Regulation
± (1% of output + 10V), From no load to full load
SETTINGS
Hi / Lo -Limit AC Current, mA (for 7473)
0 - 9.999
0.001
±（2% of setting + 2counts）
Hi / Lo -Limit AC Current, mA (for 7470)
0 - 9.999/10.00 - 20.00
0.001/0.01
±（2% of setting + 2counts）
Ramp Up Time, second
0.1 - 999.9
0.1
±（0.1% + 0.05sec）
Ramp Down Time, second
0.0 - 999.9
0.1
Dwell Time
0, 0.3 - 999.9 sec (0=continuous)
0.1
0, 0.1 - 999.9 min (0=continuous)
0.1
0, 0.1 - 999.9 hr (0=continuous)
0.1
Cycle Test
0 - 9999 Times, (0=continuous)
Arc Detection
Range 1 - 7 > 15kV , Range 1 - 9 < 15kV
AC Current Offset, mA
0 - 2.000 or Auto Set ( Option )
MEASUREMENT
AC Voltage, KV (for 7473)
0 - 20.00
0.01
±（2% of reading + 2counts）
AC Voltage, KV (for 7470)
0 - 10.00
0.01
±（2% of reading + 2counts）
AC CurrentRange, mA
0-3.500
0.001
±（2% of reading + 3counts）
3.00-10.00 (for 7473)
0.01
3.00-20.00 (for 7470)
0.01
DC WITHSTAND VOLTAGE (7472&7474)
Output Voltage, DCV (for 7474)
0 - 20000
10
±（2% of setting + 20V）
Output Voltage, DCV (for 7472)
0 - 12000
10
±（2% of setting + 10V）
Output Ripple
<5%（在20KV/5000µA for 7474, 12KV/9999µA at Resistive Load for 7472）
SETTINGS
Hi / Lo -Limit DC Current, µA (for 7474)
0.0 - 999.9/1000 - 5000
0.1/1
±（2% of setting + 2counts）
Hi / Lo -Limit DC Current, µA (for 7472)
0.0 - 999.9/1000 - 9999
0.1/1
±（2% of setting + 2counts）
Ramp Up Time, second
0.4 - 999.9
0.1
±（0.1% + 0.05sec）
Ramp Down Time, second
0.0,1.0 - 999.9
0.1
Dwell Time
0, 0.4 - 999.9 sec (0=continuous)
0.1
0, 0.1 - 999.9 min (0=continuous)
0.1
0, 0.1 - 999.9 hr (0=continuous)
0.1
Cycle Test
0 - 9999 Times, (0=continuous)
Arc Detection
Range 1 - 9 (9 is the most sensitivity)
DC Current Offset, µA
0.0 - 200.0 or Auto Set (Option )
Ramp High Current
ON/OFF, User Selection
Charge - Low Current, µA
0.0 - 350.0 or Auto Set
Discharge Time
< 200 msec
Maximum Capacitive Load
1.5µF < 2KV 0.15µF < 8KV 0.12µF < 14KV 0.08µF < 20KV
0.28µF < 4KV 0.15µF < 10KV 0.1µF < 16KV
0.18µF < 6KV 0.12µF < 12KV 0.08µF < 18KV
MEASUREMENT
DC Voltage, KV (for 7474)
0 - 20.00
0.01
±（1.5% of reading + 2count）
DC Voltage, KV (for 7472)
0 - 10.00
0.01
±（1.5% of reading + 2count）
DC Current Range, µA
0-350.0
0.1
± (2% of reading + 3counts)
300-3500
1
3000 - 5000 (for 7474)
3000-9999 (for 7472)
10
GENERAL
Input Voltage AC
115/230VAC ± 15% , 50/60Hz ± 5% Fuse: 6.3A Slow
PLC Remote Control
Input : Test , Reset , Memory1.2.3 ,Interlock
Output : Pass , Fail , Processing
Safety
Smart-GFI Function (<1mA)
Memory
50 memories
Display
20*2 LCD with back light
Key Lock
To prevent unauthorized alteration of the test Parameters
Calibration
Build-in software and external calibrated meters
Interface
RS232/GPIB /Printer Card (Option)
Alarm Volume Setting
10 ranges set by the numeric keys on the front panel
Environment
0-40℃, 20-80%RH
Dimension
430mm(W)×133mm(H)×400mm(D)
Net Weight
24Kg
24Kg
22.5Kg
23Kg
STANDARD ACCESSORIES
Power Cord (10A)
×1
Fuses
×2 (Including a spare contained in the fuse holder)
Interlock Disable Key (1505)
×1
Hipot Test Lead ,1.5m (1142)
-
-
×1
×1
Hipot Test Lead ,1.5m (1143)
×1
×1
-
-
Hipot Return Lead ,1.8m (1144)
×1
×1
×1
×1