How to protect the spectrophotometer

How to protect the spectrophotometer
1. Use the spectrophotic optical meter to change the test wavelength largely. You need to wait a while. After the lamp is balanced, the “0″ and “100%” points are corrected from the header. Then measure.
2. When the pointer is not connected to the power supply, the pointer of the meter is necessary to be on the zero scale. If this is not the case, mechanical adjustment is required.
3. After the use of the rack, please clean it with distilled water immediately, and wipe the water traces with a clean and soft gauze to avoid the surface cleanliness and affect the light transmittance of the rack.
4. The operator should not easily move the bulbs and reflector to avoid affecting the power of light.
5, 1900 equivalent optical meter, because its optoelectronic acceptance device is an optoelectronics multiplier, its own characteristic is that it has a large enlarged multiple, so it can be used to detect weak small photoelectric signals without being used to detect strong light. Otherwise, the signal drift is simply generated and the sensitivity decreases. For its above -mentioned characteristics, when repairing and using such instruments, be careful not to let the photoelectric multiplier increase in the light for a long time. Therefore, when preheating, the color dish is opened or the light rod should be used to avoid long -term shining to make it functional function. Drift leads to unstable operation.
6. After the sensitivity of the extension is shifted, it is necessary to adjust zero from the head.
7. Supporting the color cup. It is necessary to use the color cup, otherwise the test results will be lost. Comparison should be performed before each test. The specific method is as follows; the same solution is injected into the two cups of the tested, putting the instrument in a wave of interests, quartz cups; 220nm, 700nm loaded distilled water, glass than color cup: 700nm to install distilled water, will be a certain certain The transmission ratio of a pool is adjusted to 100%, and the transmission ratio of other pools is measured to record the difference between the value and the direction of the light. If the difference between the transmission ratio is within ± 0.5% It should consider its impact on test results.