1. Check the laser power test the “L” and “N” pin on the laser power by the multimeter, whether it shows 220V voltage 2. Whether the water flow is unobstructed. The pipes can't be connect inversed. "WATER INLET" connect the water pump 3. Check the water protection(the most possible problem) E

On 19th April, boss led us to go to Tianmu Lake spring tour in Changzhou city, Jiangsu. It's good weather last weekend. All of us had a good field trip.

Booth No.: A0900 Address: National Exhibition and Convention Center No.333, Songze road, Qingpu district, Shanghai. Date: 5th to 8th March, 2019

BOOTH: W1-D14 TIME: 19-21, September 2018. Address: Shanghai New International Expo Centre

Booth No：C164, Hall 11 Time：7 - 9 September 2018 Address：Pragati Maidan, New Delhi, INDIA

1,Installation RequirementsLaser tube should be Strictly installed according to the installation diagram, it’s equipped with a dedicated power supply, positive pole is with high voltage, and the starting voltage is 24 kV !Adverse consequences caused by failure to installation: inner tube breakdown b