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。
专业销售/收购/维修、租赁二手仪器设备
：/李汉明，曾小姐,qq308966
产品特点
7473 交流输出20kv / 10ma & 7470 10kv/ 20ma7474 直流输出20kv / 5ma & 7472 12kv/ 10ma20×2 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 (for7470)
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 for7472）
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

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深圳市福田区鑫民泰仪器行
曾碧新
13802706111
福田区华强北高科德电子市场一楼12847室