Built-in high-resolution and high-precision measuring circuit, as well as high current and high power input, still extremely high precision and resolution, making your test results more accurate and convenient.
The new generation of programmable high-power DC electronic load has constant voltage CV, constant power CW, constant current CC and constant resistance CR modes, remote measurement, short-circuit test, battery test and dynamic test, this multi-function meets the needs of your various tests.
Usage Areas
High-power electronic load application: widely used in production lines (mobile phone chargers, mobile phone batteries, electric vehicle batteries, switching power supplies, linear power supplies), scientific research institutions, automotive electronics, aerospace; ships, solar cells, fuel cells and other industries.
TECHNICAL PARAMETERS
| Model | MTJ-9904 | |
| Input | Input Voltage | AC220V±10%, 50±20Hz |
| Power Consumption | <40W | |
| Load | Load Voltage | 1-150V |
| Load Current | 0-40A (Expandable 60A) | |
| Load Power | 400W | |
| Load Resistance | 0.1Ω-10000Ω | |
| Measurement resolution | Current | 0.001A |
| Voltage | 0.001V | |
| Resistance | 0.001Ω | |
| Power | 0.001W | |
| Measuring accuracy | Main current | Imax ±0.05%+4mA （24 bit A /D ,15ppm / ℃ standard） |
| Main voltage | Vmax ±0.05% +4mV（24 bit A /D ,15ppm / ℃ standard，Input impedance230KΩ） | |
| control precision | Current | Imax ±0.1%+4mA （16 bit D/A ,15ppm / ℃ standard） |
| Voltage | Vmax ±0.1%+4mV （16 bit D/A ,15ppm / ℃ standard） | |
| Resistance | Rmax ±0.1%+0.1Ω （16 bit D/A ,15ppm / ℃ standard） | |
| Power | Pmax ±0.1%+0.1W （16 bit D/A ,15ppm / ℃ standard） | |
| Protection | overvoltage | 160V |
| overheating | 85℃ | |
| overpower | 400W | |
| overcurrent | 40A | |
| Communication Interface | Programmable interface | RS232,RS485 |
| Monitoring software | Support PC online, download directly from the official website and use(open communication protocol, support secondary development) | |
| Function | Operating mode | CC , CV， CR，CP |
| General function | Dynamic test (Max. 10KHz), short circuit test, high-precision battery test (AH,WH) Battery discharge: (CR, CC) | |
| Automatic test function | Overcurrent protection point/protection time test, internal resistance test, list test | |
| Extended function | External trigger | √ |
| PASS,FAIL Output | ||
| Remote voltage measurement | ||
| Accessories | RS232 communication cable, high-current load copper silver-plated cold-pressed terminal, communication expansion terminal, power cord, manual, warranty card | |
| Working environment | Full load range：0~30℃（Derating over 30℃, derating rate 40W / ℃） | |
| temperature range | ||
| Working environment humidity range | 10~60%RH | |
| DC input terminal to chassis withstand voltage | ±250VDC | |
| DC input terminal to chassis insulation resistance | >20MΩ ,at 500VDC | |
| AC input terminal to chassis insulation resistance | >20MΩ ,at 500VDC | |
