2. Temperature: 10 ° C - 30 ° C (if this condition is not met, air conditioning is required).
3. Humidity: Less than 80% (if more than 80%, a dehumidifier is required).
4. Use gas: air and acetylene gas (users need to bring their own acetylene cylinder and pressure reducing valve), the purity of acetylene gas should be consistent with the atomic absorption analysis (analytical acetylene 99.99%).
5. Test bench: A cement platform with a length of 2.5 meters, a width of 1 meter and a height of 0.8 meters. The distance between the side and the wall of the instrument should be no less than 0.5 meters to facilitate the installation of the instrument.
6. Exhaust equipment : The diameter of the exhaust hood above the burning head of the instrument should be 400mm × 400mm, and it is better to have the door on the air inlet. The diameter of the exhaust duct is 150mm, and the exhaust fan is installed at the air outlet. 1 Table length greater than 2.5 m 2 Acetylene cylinders should be placed separately, 3 meters away from the instrument
7. Power ground wire: The power supply should be well grounded. The ground wire is made by: After a copper plate is buried in the ground, pour the brine, and a wire of 4 square millimeters is taken to the laboratory switchboard. The resistance is less than 10Ω.
8. Note: After receiving the instrument, the user shall not unpack the box without authorization (if the box is damaged when picking up the goods, please contact the railway quality assurance room and the manufacturer immediately to obtain compensation from the transportation department), and wait for the installer to unpack the box after arrival. And check the accessories and accessories according to the packing list.
Green Light Hydrogel Screen Protector
Eye protection:The principle of chlorophyll defocusing is adopted to prevent the eyeball from focusing for a long time, effectively alleviate eye fatigue, and achieve better eyesight protection.
Anti-blue light, ultraviolet light:The Green Light Film can actively filter the target wavelength while providing a band in the range of 380-400nm. It can effectively block 100% harmful light.
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Green Light Film,Green Light Screen Protector
Shenzhen Jianjiantong Technology Co., Ltd. , https://www.jjttpucuttingplotter.com