Spectrophotometers and UV Spectrophotometers
(1) In order to ensure the stable operation of the instrument, in the place where the power supply fluctuates greatly, it is recommended that the user use the AC voltage stabilized power supply of more than 500W. When the instrument stops working, the instrument power switch should be turned off and the total power supply should be cut off.
(2) In order to avoid the accumulation of dust and staining of the instrument, in the stop working time, with a plastic cover over the entire instrument, in the cover should be put several bags of moisture-proof silica gel, so as to avoid moisture in the room of the lamp, the reflector mirror surface of the moldy spots or stained to affect the energy of the instrument.
(3) Clean the instrument shell should be used with warm water and soft cloth gently wipe the surface, do not use ethanol, ether, acetone and other organic solutions. When the instrument is not in use, please protect it with a dust cover. Mirrors used in the instrument must not be hand or hard and soft objects to contact, once the traces left behind, resulting in mirror contamination caused by stray light increase to reduce the effective energy, resulting in man-made damage to the instrument.
(4) The instrument can not be left unused for a long time, which reduces the life, if not used for a period of time, it is recommended that the power on 1-2 times a week, about half an hour each time.
(5) After the test is completed, please remove the solution from the sample chamber in a timely manner, for volatile and corrosive liquids, pay special attention! If there is any missing solution in the sample chamber, please wipe it off in time, otherwise it will cause corrosion of the parts in the sample chamber.
(6) After working for several months or moving the instrument, check the wavelength accuracy and absorbance A accuracy, etc. to ensure the use of the instrument and the accuracy of measurement.
(7) Maintenance cycle: once a month is recommended.
Atomic Absorption Spectrometer
Flame section
(1) Gas safety check
a. Check whether the gas cylinder is leaking;
b. Whether the gas pipeline gas tightness is good;
(2) Check and clean the appearance of the instrument a. Clean the instrument shell;
b. Check the sponge filter of each exhaust fan and replace it when needed;
c. Check whether the instrument power cord is intact, whether the data connection line is intact; d. Check the instrument external knob indicator.
(3) Check and clean the flame feed system
a. Check the combustion head, atomization mixing chamber, atomizer components, clean up if necessary; b. Check the atomizer end cap, combustion head to meet the use requirements;
c. Check the combustion head sealing O-ring, atomizer end cap sealing O-ring, replace if necessary; d. Check the liquid level in the waste liquid bucket, clean the waste liquid if necessary;
e. Check the water seal system;
f. Adjust the position of the combustion head and the sensitivity of the atomizer.
(4) Gas flow check
a. Check the air, acetylene flow; b. Check the cleanliness of the gas line;
c. Check whether the gas line is clogged and deal with it when needed.
(5) Instrument accessories maintenance
Check whether the air compressor and filter drier are drained.
