| 类型 | 便携式安全仪器 | 品牌 | 华仪 |
| 型号 | 7740 | 测量范围 | 0 - 10000 |
| 测量 | 1% | 尺寸 | 430mm(W)×133mm(H)×400mm(D)（mm） |
| 用途 | 安规检测 |
| 特點 | |
| 7473交流輸出20KV / 10mA & 7470 10KV/ 20mA | |
| 7474直流輸出20KV / 5mA & 7472 12KV/ 10mA | |
| 20×2 點矩陣LCD 顯示器 | |
| 內含智慧型防高壓觸電裝置Smart GFI(專利: 169000) | |
| 全範圍輸出穩壓率可達1% | |
| 內建50組程式記憶；記憶組間可進行連結測試 | |
| 內建遠端控制界面 | |
| 鍵盤鎖定功能 | |
| 可選購界面GPIB,RS232或Printer Card | |
| 產品測試應用範圍 馬達&發電機 火星塞 電容器 連接器 航空元件 變壓器 醫療器具 電線&電纜 鐵心&電感 開關&繼電器 | |
| 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 Current Range, 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 |
