Deuterium lamp powered by deuterium lamp power supply is a high-precision light source of analytical measuring instruments, which is widely used in liquid chromatograph, spectrophotometer, analyzer and other analytical testing instruments. Deuterium lamp life, this is the most common, deuterium lamp power supply to life will generally have the following signals:

(1) Through the self-test system to detect the energy of deuterium lamp, each analytical instrument using deuterium lamp generally has its own deuterium lamp energy detection item, different models and brands of instruments, the reference standards for detection are different, if the detection energy is low, the deuterium lamp is fast to the service life.

(2) the glass jacket becomes black (check or replace when the light is turned off and cooled);

(3) Nonlinear phenomena that have never appeared in previous analytical methods (the absorption rate of light is not linear);

(4) Serious baseline drift under normal setting;

(5) No peak during normal injection;

(6) Check the cumulative time of use of the deuterium lamp, if the use of a long time, after the warranty time of the deuterium lamp, at the same time, the above abnormal phenomenon occurs.