华仪EXTECH7300系列（7305/7314/7315/7316）接地电阻测试仪7300 Series Ground Bond Tester | MODEL | 7305 | 7314 | 7315 | 7316 | | GROUND BOND | | Output AC Current | 3 - 30A | 1 - 40A | 1 - 30A | 1 - 60A | | Output AC Voltage | 6V, Maximum | 8V, Maximum | 6V, Maximum | 12V, Maximum | | Output Frequency | 50Hz/60Hz ±100ppm, User Selection | | SETTINGS | Max-Limit
Range | Resistance | 0-510mΩ | 0-120mΩ | 0-600mΩ | 0-200mΩ | 0-150mΩ | 0-510mΩ | 0-120mΩ | 0-600mΩ | 0-300mΩ | 0-150mΩ | | AC Current | 3.0-10.0A | 10.1-30.0A | 1.00-10.00A | 10.01-30.00A | 30.01-40.00A | 1.00-10.00A | 10.1-30.00A | 1.00-15.00A | 15.01-30.00A | 30.01-60.00A | | Resolution | 1mΩ | | Accuracy | Same as Resistance Measurement Accuracy | Min-Limit
Range | Resistance | - | 0-600mΩ | 0-200mΩ | 0-150mΩ | 0-510mΩ | 0-120mΩ | 0-600mΩ | 0-300mΩ | 0-150mΩ | | AC Current | - | 1.00-10.00A | 10.01-30.00A | 30.01-40.00A | 1.00-10.00A | 10.1-30.00A | 1.00-15.00A | 15.01-30.00A | 30.01-60.00A | | Resolution | 1mΩ | | Accuracy | Same as Resistance Measurement Accuracy | | Lead Resistance Offset | Range | 0 - 100 mΩ, Auto/manual | | Resolution | 1mΩ | | Accuracy | ±（2% of setting +2 counts） | | Dwell Time | Range | 0, 0.5 - 999.9 sec （0 = continuous） | | Resolution | 0.1 sec | | Accuracy | ±（0.1% + 0.05sec） | | MEASUREMENT | | AC Current | Range | 3.0 - 30.0A | 1.00 - 40.00A | 1.00 - 30.00A | 1.00 - 60.00A | | Resolution | 0.1A | 0.01A | 0.01A | 0.01A | | Accuracy | ±（2%of reading +1count） | ±（3%of reading +3counts） | ±（3%of reading +3counts） | ±（3%of reading +3counts） | | Resistance | Range | 0-510mΩ | 0-120mΩ | 0-600 mΩ | 0-600 mΩ | 0-200 mΩ | 0-150 mΩ | 0-510 mΩ | 0-510 mΩ | 0-120 mΩ | 0-600 mΩ | 0-600 mΩ | 0-300 mΩ | 0-150 mΩ | | 3.0-10.0A | 10.1-30.0A | 1.00-5.99 A | 6.00-10.00 A | 10.01-30.00 A | 30.01-40.00 A | 1.00-2.99 A | 3.00-10.00 A | 10.01-30.00 A | 1.00-5.99 A | 6.00-15.00 A | 15.01-30.00 A | 30.01-60.00 A | | Resolution | 1 mΩ | | Accuracy | ±（2%of reading +1count） | ±3% of reading +3 counts） | ±（2% of reading +2 counts） | ±（3% of reading +3counts） | ±（2% of reading +2 counts） | ±3% of reading +3 counts） | ±（2% of reading +2 counts） | | GENERAL | | Input Voltage AC | 115/230Vac±15%, 50/60Hz ± 5%, Fuse 6.3A for 7305/7315 model, 10A for 7314 model, 1 for 7316 model | | PLC Remote Control | Input: Test , Reset,Withstand Processing ,（Memory1.2.3, Interlock for 7314/7315/7316 model only） | | Output: Pass , Fail , Processing , Reset Out , Start Out | | Memory | 5 memories | 10 memories, 3 steps/memory | | Display | 16×2 LCD with back light | 128×64 Graphic LCD | | Key Lock | To prevent unauthorized alteration of the test Parameters | | Calibration | Build-in software and external calibrated meters | | Verification | - | Build-in software driven verification menu to test fault detection circuits | | Alarm Volume Setting | - | Range: 0-9 ;0=OFF, 1 is softest volume, 9 is loudest volume. | | Environment | 0-40℃, 20-80%RH | | Dimension | 280（W）×89（H）×370（D）mm | 215（W）×89（H）×430（D）mm | 215（W）×89（H）×370（D）mm | 430（W）×130（H）×400（D）mm | | Net Weight | 10Kg | 14Kg | 8.7Kg | 20Kg | | STANDARD ACCESSORIES | | Power Cord（10A） | ×1 | ×1 （1） | | Fuses | ×2 （Including a spare contained in the fuse holder） | ×1（On Board） | | Interlock Disable Key（1505） | - | ×1 | ×1 | ×1 | | Ground Bond Test Lead 30A ,1.5m（1103） | - | - | ×1 | - | | Ground Bond Return Lead 30A ,1.5m（1104） | - | - | ×1 | - | | Ground Bond Return Lead 30A ,1.6m（1122） | ×1 | - | - | - | | Ground Bond Test Lead 30A,1.6m（1131） | ×1 | - | - | - | | Ground Bond Test Lead 40A,1.6m（1137） | - | ×1 | - | - | | Ground Bond Return Lead 40A,1.6m（1138） | - | ×1 | - | - | | Ground Bond Test Lead 60A,1.65m （1160） | - | - | - | ×1 | | Ground Bond Return Lead 60A,1.65m（1161） | - | - | - | ×1 | |
