Audited Supplier
30102000301
Used
Customized
ISO9001
Educational Equipment
SHUN MA / OEM
Carton Box
As shown in the figure
Yuyao Zhejiang China
9023000000
Product Description
Power Supply High school teaching power for School Lab (Physical Instrument)
Junior high school teaching power supply:This power supply for school lab is mainly a graded continuously adjustable high-current protection DC regulated power supply, with good voltage stability and small ripple, and has 5A, 40A and AC output functions. It is a general and necessary instrument for junior high school teaching demonstration experiments. It can also be used in technical vocational schools, normal schools, and teaching experiments.
Product Specification
| Model | Junior high school student power supply | Junior high school teaching power supply | High school student power | High school teaching power |
| Output voltage | 1.5V-9V DC regulated output, six gears | 1.5V ,3V ,4.5V ,6V ,9V ,12V ,regulated output,six gears | 1.5, 2, 3... 16V single and double selection sixteen gears adjustable | 2~24V, one gear per 2V, a total of 11 gears can be adjusted |
| Rated current | 1.5A | 2A | 2A | 2V-6V,12A 8V-12V,6A 12V-24V,3A |
| Voltage stability | Each gear is not more than 350mV | Each gear is not more than 350mV | The output of each gear is not more than 2%U standard +0.1V | The output of each gear is not more than 2%U standard +0.1V |
| Current stability | Each gear is not more than 350mA | Each gear is not more than 350mA | --- | --- |
| Ripple voltage | Each gear is not more than 15mV | Each gear is not more than 15mV | When each gear is fully loaded, it is not more than 0.1% U mark | When each gear is fully loaded, it is not more than 0.1% U standard + 5MV |
| Protection | With overcurrent protection | Between IХ (1.05-1.6), automatic protection | When the output current is between 1.05 and 1.5 times of the rated current, the output can be automatically turned off | When the output current is between 1.05 and 1.5 times of the rated current, the output can be automatically turned off |
| Ambient temperature | 0~40ºC | 0~40ºC | 0~40ºC | 0~40ºC |
| Relative humidity | ≤80%(40ºC) | ≤80%(40ºC) | ≤90%(40ºC) | ≤85%(40ºC) |
| voltage | 150 V~248V,50Hz | 220V±10% | 220V±10% 50Hz±5% | 220V±10% 50Hz±5% |
| operating hours | continuous | Continuous voltage regulation (except 40A, 5A) | Working continuously for not less than 8 hours | Working continuously for not less than 8 hours |
Product feature and application
This power supply for school lab is mainly used as a low-voltage AC and DC regulated power supply for junior high school and high school physics teaching experiments.
Maintenance and precautions
1. The power supply should be stored in a dry and ventilated place without corrosive gas to prevent the device from being damp, corroded and reduced in insulation.
2. The power supply should be used within the rated load, and overloading is strictly prohibited.
3. When using the pressure regulating switch, it should be gradually changed from low to high to avoid damage to the experimental circuit due to overvoltage or overcurrent.
4. When the instrument is fully loaded and used continuously for a long time, the circuit chip of the instrument may be protected due to overheating. In this case, the load can be reduced or the internal temperature can be lowered before enabling it.
