The deuterium lamp supplied by the deuterium lamp power supply is a high accuracy analysis and measuring instrument source, which is widely used in many kinds of analytical instruments, such as liquid chromatograph, spectrophotometer, analyzer, etc. The deuterium lamp is life, this is the most common, and the deuterium lamp usually has the following signal to the life span.

(1) the deuterium lamp energy is detected by self checking system. Every deuterium lamp analysis instrument is usually equipped with deuterium lamp energy detection. The reference standard of different models and brands is different. If the detection energy is low, the deuterium lamp will reach service life.

(2) the glass coat is blackened (checked or replaced when the lamp is closed and cooled).

(3) the nonlinear phenomena that have never occurred in the previous analysis method (the absorption rate of light is not linear);

(4) the baseline drift is serious under normal setting.

(5) there is no peak in normal sampling.

(6) to see the cumulative time of the use of deuterium lamp, if the time is long, the time of the deuterium lamp is passed, and the above abnormal phenomenon appears.