Hunan Chendong Technology Co., Ltd.

Instructions for use

 The PAPI system is used to guide aircraft to approach the runway at an appropriate altitude.
The upper half of PAPI"s beam is white and red in the lower half. In the visual range, different
elevation lights in PAPI systems allow the aircraft to see different colors at different altitudes. The
pilot can judge and adjust the height of the plane by seeing the color of the beam, making it at the
right height. When the pilot saw the white means to fly too high; when the pilot saw white and red
together said height at the right moment; when the pilot saw the red light said flying too low, could
hit obstacles.

Application

Tower ,Crane
Wind Power Generator
High-Building
Chimney,Heliport
Water or Cooling Tower

Certification

ICAO

FAA

CAAC

CE

Company Type

Synchronized Flashing Units Can"t work Simultaneously

A.Monitor Function Type Requires Power Line seperate from signal line,the power circuit of each unit can be independently connected,pls check signal circuit was connected by corresponding color when ensure power supply works normally.

B.Check if there"s short circuit or leakage phenomenon with the signal circuit after excluding the condition above.

Light-operated switch can"t work normally
A.The Unit can"t work at day: Pls check if the light-operated detector is closed over by dust;
B.The Unit can"t work at night: Pls check if light-operated detector is influenced by direct light or strong reflective light;
C.Testing the unit at day: Most of customers test the unit by Closing over the light-operated detector using their hands.Since the strong Radiation of sunshine,the light-operated function can"t work.The proper method is using 3 layers of black opacity adhesive tapes.