Voltage Drop Tester

ZJ-DYJ200A
1. The operating environment and storage method may affect the lifespan and reliability of this product. Do not use in the following environments:
A. Outside the specified technical specifications.
B. High or low temperature or humid environments (temperature -25°C to +75°C, relative humidity 20% to 90%).
C. Locations subject to vibration or impact.
D. Locations exposed to metallic dust, corrosive substances, salt, and flammable gases.
2. If not in use for an extended period, store this power supply in a dry environment within the storage temperature range of -25°C to +75°C. Before powering on the power supply, allow the ambient temperature to return to above 0°C for at least two hours.

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Features
Technical Indicators
Overall Dimension

☆Specifications: Output voltage: 0-rated voltage, output current: 0-rated current ☆Voltage and current presets: Preset buttons on the panel allow you to pre-set voltage and current values ☆Voltage and current regulation: Voltage and current values are continuously adjustable from zero to rated values, with automatic switching between regulated and stable values ☆Overvoltage protection: The unit automatically locks after protection and automatically unlocks upon restart ☆Overcurrent protection: Output overload protection at rated current, short-circuit protection (output shuts off after a short circuit, optional) ☆Short-circuit protection: Allows long-term short-circuit operation or short-circuit operation in any state ☆Short-circuit alarm: When the output is short-circuited, the power supply will emit an audible and visual alarm ☆Output display: Both voltage and current meters are LCD-displayed ☆Pulse operation: Optional with a time controller to form a DC pulse power supply ☆Intelligent: Optional with computer connection via RS232, RS485, or CAN to form a computer-monitored intelligent power supply (optional) ☆Analog signal connection: Optional with 0-5V, 0-10V, or 4- 20mA signal control and readback of power supply output voltage and current (optional) ☆ Customization: We offer custom power supply designs and sizes (pre-approved).
1. Maximum output voltage: Approximately 0V - rated value 2. Maximum output current: Approximately 0A - rated value 3. Constant voltage continuously adjustable range: 0V - rated value 4. Constant current continuously adjustable range: 0A - rated value 5. Output voltage, output current, and overvoltage settings: Touch screen 6. Automatic switching between voltage and current regulation modes 7. Voltage regulation accuracy: Source effect ≤ 0.5% of rated value (output voltage change caused by a ±10% change in input power supply voltage) Load effect ≤ 0.5% of rated value (output voltage change caused by a change in output current from zero to rated value) =Rate) 8. Current Regulator Accuracy: Source Effect ≤ 0.5% of rated value (rate of change in output voltage caused by a ±10% change in input power voltage) Load Effect ≤ 0.5% (rate of change in output current caused by a change in output voltage from zero to the rated value) 9. Output Ripple: ≤ 0.5% of rated value when regulated (effective value, measured at rated output) 10. Protection Circuit: Output short-circuit, overvoltage, overload, and overtemperature protection 11. Display: LCD 12. Display Resolution: Determined by model 13. Display Error: ≤ 1% ±1 digit (within 20%-100% range) 14. Programmable Control (Optional): The power supply provides an RS485 interface and communication protocol, allowing connection to a computer to form an intelligent power supply. This interface enables functions such as starting and stopping the power supply, setting setpoints, and real-time reading of voltage, current, and operating status. 15. Operating Mode: Continuous operation at full load for extended periods 16. Time Drift: ≤0.5% of rated value (output voltage change rate caused by continuous operation for more than 8 hours) 17. Temperature Drift: ≤0.05% of rated value/°C (output voltage change rate caused by ambient temperature changes within the operating temperature range) 18. Input Voltage: Single-phase 220V ±10% / Three-phase 380V ±10% 19. Frequency: 50Hz/60Hz 20. Insulation Resistance: ≥20MΩ 21. Dielectric Strength: AC1500V 60s 22. Operating Environment: Indoor