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ZJ-DYJ200A
Voltage drop tester
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Product Description
1. Use and maintenance
1. The service life and reliability of this product are affected by the use environment and storage method. Please do not use it in the following working environments:
- A. Exceeding the technical specifications;
- B. High and low temperature and humid environment (temperature -25℃~+75℃, relative humidity 20%~90%);
- C. Places with vibration and prone to impact;
- D. Places with metallic dust, corrosive substances, salt, and flammable gases;
2. If the power supply is not used for a long time, please store it in a dry environment with a storage temperature range of -25℃~+75℃. Before turning on the power, the ambient temperature must be warmed up to above 0℃ and maintained for more than 2 hours.
2. Performance characteristics
☆Specification: Output voltage 0 - rated voltage, output current 0 - rated current
☆Voltage and current preset: The panel comes with preset buttons, which can preset the voltage and current values
☆Constant voltage and constant current: The voltage and current values are continuously adjustable from zero to the rated value, and the constant voltage and constant current are automatically converted
☆Overvoltage protection: The machine is locked after protection, and the machine is automatically unlocked after restarting
☆Overcurrent protection: Rated current output overload protection, short circuit protection (output is turned off after short circuit, optional)
☆Short circuit protection: Allows long-term short circuit or short circuit start-up in any state
☆Short circuit alarm: The power supply will sound and light alarm when the output is short-circuited
☆Output display: The voltage and current meters are LCD displays
☆Pulse work: It can be equipped with a time controller to form a DC pulse power supply (optional)
☆Intelligence: It can be connected to a computer through RS232 or RS485 or CAN to form an intelligent power supply monitored by the computer (optional)
☆Analog signal connection: Users can use 0 ~ 5V, 0 ~ 10V or 4 ~ 20mA signals to control and read back the voltage and current output of the power supply (optional)
☆Special customization: Provide special specifications for power supply size design and special power supply customization (declare in advance)
3. Main technical indicators
1. Maximum output voltage: close to 0V-rated value
2. Maximum output current: close to 0A-rated value
3. Constant voltage value continuously adjustable range: 0V-rated value
4. Constant current value continuously adjustable range: 0A-rated value
5. Output voltage, output current and overvoltage setting: touch screen
6. Automatic switching of constant voltage and constant current states
7. Constant voltage accuracy:
Source effect ≤0.5% of rated value (the rate of change of output voltage caused by the change of input power supply voltage ±10%)
Load effect ≤0.5% (the rate of change of output voltage caused by the change of power supply output current from zero to the rated value)
8. Constant current accuracy:
Source effect ≤0.5% of rated value (the rate of change of output voltage caused by the change of input power supply voltage ±10%)
Load effect ≤0.5% (the rate of change of output current caused by the change of output voltage from zero to the rated value)
9. Output ripple: ≤0.5% of rated value when the voltage is stable (RMS value, measured at rated output)
10. Protection circuit: Output short circuit, overvoltage, overload protection, overtemperature protection
11. Display mode: LCD screen display
12. Display resolution: determined by the specification model
13. Display error: ≤1% ±1 word (within 20%-100% range)
14. Program control (optional function): The power supply provides RS485 interface and communication protocol, which is connected with the computer to form an intelligent power supply; the power supply can be started, stopped, setpoint set, real-time read voltage, current value, working status and other functions through the 485 interface.
15. Working mode: continuous full load continuous work for a long time
16. Time drift: ≤0.5% of rated value (the rate of change of output voltage caused by the power supply working continuously for more than 8 hours)
17. Temperature drift: ≤0.05% of rated value/°C (the rate of change of output voltage caused by the change of ambient temperature within the operating ambient temperature range of the power supply)
18. Input voltage: single-phase 220V±10% / three-phase 380V±10%
19. Frequency: 50Hz/60Hz
20. Insulation resistance: ≥20MΩ
21. Withstand voltage strength: AC1500V 60S
22. Use environment: indoor
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Dongguan Zhongjia Testing Equipment Technology Co., Ltd
86135 8080 6147(Technical Director)
86135 8090 9432(Mr. Guo, Manager)
Building 1, Guanghui Zhigu, No. 86, Yinkang Road, Hengli Town, Dongguan City
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