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Product overview:
Ws-50ma / 300V program-controlled resistance box is applicable to the leakage current test of charging pile. It has "constant current" load mode and provides automatic compensation function, so that the equipment accuracy is much higher than that of conventional resistive load box. It is more convenient and convenient to use. Multiple system protection is configured to ensure the reliability of the equipment. The system expands one RS485 remote communication interface and uses Modbus RTU protocol, The system is the best choice for integration testing.
Product features:
1. Voltage wide range input
2. The leakage current is adjustable
3. 1mA minimum adjustment accuracy
4. Complete protection functions: overvoltage, overheating, overcurrent, over-power, module fault protection.
5. Constant resistance, constant current and conversion of two working modes to meet more test requirements
6. Support a variety of remote control, standard RS485, optional Ethernet communication control. Support standard Modbus communication protocol.
Application fields:
Automobile electronic test, power supply test, battery test, leakage current detection test of DC switching components.
Technical specifications:
Product name | Programmable resistance box |
model | WS-50mA/300V |
Rated voltage | Ue=AC 220V |
Allowable access voltage | AC 160V-300V |
Rated frequency | 50HZ |
Current regulation range | 1mA-50mA |
Number of channels | Single channel (optional multi-channel) |
Voltage measurement accuracy | 0.5% F.S. |
Current measurement accuracy | 0.5% F.S. |
Panel layout | Power switch, digital instrument, fault alarm |
control mode | Remote RS485 Modbus RTU standard communication protocol (optional Ethernet communication) |
Load mode | Constant resistance mode / constant current mode |
Automatic compensation | Correct and compensate the error beyond the set value caused by line impedance and equipment internal resistance, and the system will automatically compensate to realize high-precision load regulation |
Heat dissipation mode | Forced air cooling |
Air inlet direction | Front air inlet and back air outlet |
Protection function | Short circuit protection, overvoltage protection, overcurrent protection, module fault protection |
Equipment interface | L n main bus / working power supply / grounding / RS485 communication interface |
operation mode | Long time continuous working system |
Working power supply | AC 220V 50Hz mains power |
Installation mode | 19 inch rack type |
Overall dimension | 178-440-500mm (height width depth) |
Equipment weight | 30kg |
Appearance color | Light gray or white |
Degree of protection | IP21 |
Operating ambient temperature | -10℃~55℃ |
