Rotary AC-DC Resistance Box Technical Specifications:
1. Zero-value resistance: 30±5mΩ, this instrument adopts spring fine-tuning switch, uses 10,000 times, variation is less than 2m?
2, zero inductance does not exceed 2 microhenry.
3, the resistance box can be used in the 0-10kHz audio range. The variation due to frequency is less than 0.1%.
4. The resistance box can withstand the frequency of 50 Hz and 2000 volts AC voltage between the electrical circuit and the shield, and does not breakdown for 1 minute.
5, resistance box electrical line and shield insulation resistance of not less than 1000 megohms.
Rotary AC and DC Resistance Box Notes:
1. Before using this resistance box, you should first rotate each button to make the brush contact firmly and firmly.
2. The resistance box must not exceed the rules in Table 1 for extra power and extra current.
3, resistance box should be placed in the covered room, air temperature +5 ~ 45 °C, relative humidity below 80%, four weeks should not contain harmful gases can cause erosion.
The latest technical parameters reference: http://. . Com
1. Zero-value resistance: 30±5mΩ, this instrument adopts spring fine-tuning switch, uses 10,000 times, variation is less than 2m?
2, zero inductance does not exceed 2 microhenry.
3, the resistance box can be used in the 0-10kHz audio range. The variation due to frequency is less than 0.1%.
4. The resistance box can withstand the frequency of 50 Hz and 2000 volts AC voltage between the electrical circuit and the shield, and does not breakdown for 1 minute.
5, resistance box electrical line and shield insulation resistance of not less than 1000 megohms.
Rotary AC and DC Resistance Box Notes:
1. Before using this resistance box, you should first rotate each button to make the brush contact firmly and firmly.
2. The resistance box must not exceed the rules in Table 1 for extra power and extra current.
3, resistance box should be placed in the covered room, air temperature +5 ~ 45 °C, relative humidity below 80%, four weeks should not contain harmful gases can cause erosion.
The latest technical parameters reference: http://. . Com
Window Screen
A window screen (also known as insect screen, bug screen, fly screen, flywire, Wire Mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fiberglass, plastic wire, or other pieces of plastic and stretched in a frame of wood or metal. It serves to keep leaves, debris, bugs, birds, and other animals from entering a building or a screened structure such as a porch, without blocking fresh airflow.
Window Screen,Plastic Window Screen,Aluminum Window Screen,Fiberglass Window Screen
HENGSHUI YUZHENG IMPORT AND EXPORT CO., LTD. , https://www.yuzhengnails.com