Flame Detector Tester Lamp has a built-in flame burner that emits infrared wavelengths greater than 850 nanometers and ultraviolet wavelengths less than 280 nanometers through infrared filters and ultraviolet filters. 
the output port  be aligned with thedetector, the distance 15 cm inside. 
 
Flame Detector Tester Lamp Installation guide
1.Charging:
plug the dedicated power charger to the power port. After the device is fully charged, the charger indicator lights will
change from red to green.
2.Connection:
select the number of connecting rods according to the height and rotate to connect the tester and connecting
rods clockwise or dissemble counterclockwise
3. Disassembly and assembly of protection cover: rofate and remove protection cover counterclockwise and install
the protection cover clockwise.
4.window with optical filter is the infrared light-emitting source. The window without an optical filter is the ultraviolet
light-emitting source