Maintenance and maintenance of optical rotators

The maintenance and maintenance of the optical rotator (polarimeter) is the key to ensure its long-term stable operation and accurate measurement. The following are detailed recommendations for the maintenance and maintenance of optical rotators:

1. Storage environment

Ventilation and drying: Place the polarimeter in a ventilated and dry place with appropriate temperature to avoid humidity and mold.

Dust-proof and moisture-proof: The instrument should avoid dust and can be placed in a dry place. A little desiccant can be placed in the sample room to moisture-proof.

Away from corrosion: avoid contact with corrosive gases to prevent violent vibration.

2. Use precautions

Continuous use time: the continuous use time of the polarimeter should not be too long, generally not more than 4 hours. If the use time is long, the middle should be turned off for 10 to 15 minutes, and then continue to use the sodium light after cooling, or blow with an electric fan to reduce the heat degree of the lamp, so as to avoid a decrease in brightness and reduced life.

Reduce frequent switching: Samples should be measured together to reduce frequent switching of the polarimeter. Do not turn on the light source switch when the sample is not tested.

Check zero: Before use, check whether the zero position of the polarimeter is accurate, that is, when the polarimeter is not put in a test tube or into a test tube filled with distilled water, observe whether the brightness of the field of view at zero is consistent. If inconsistent, indicating that there is a zero bit error, the deviation value should be subtracted or added to the measured reading, or corrected.

3. Cleaning and maintenance

Surface cleaning: The surface of the optical instrument is easy to catch dust and fingerprints, and it needs to be wiped clean with a clean soft cloth frequently. You can also use some special cleaning agents to clean, but be careful not to use overly strong solutions, so as not to damage the surface of the instrument.

Lens cleaning: All lenses should not be wiped directly by hand, and should be wiped with a soft velvet cloth to avoid scratches.

Test tube cleaning: After the test tube is used, the solution should be poured out in time, washed with distilled water, dry and hide well.

Sample chamber cleaning: The sample chamber is cleaned regularly, and can be cleaned using a weakly acidic solution or water to ensure the optical properties of its surface.

4. Deactivation and transportation

Protection during deactivation: When the polarimeter is deactivated, the plastic sleeve should be put on. When packing, it should be put into the box according to the fixed position and pressed tightly.

Long-term storage: When not in use for a long time, in order to protect the polarimeter, the instrument should be thoroughly cleaned first, then disassemble the instrument, and store it in a dry and dust-proof place for direct installation next time.

Transportation attention: The instrument should be handled with care to avoid vibration and ensure the safety of the instrument during transportation.

5. Professional maintenance

Light source inspection and replacement: The light source is one of the most critical parts of the polarimeter instrument, and it is necessary to check whether its luminous state is normal before use. If the light source is found to be abnormal, such as brightness decline or can not be lit, it should be replaced in time or contact professional technicians for maintenance.

Mechanical part maintenance: regularly check whether the mechanical parts of the polarimeter operate normally, including regulating devices, rotating instruments, temperature control devices, etc. If an exception is found, such as increased friction resistance or stall, repair or maintain it in time or contact professional technicians.

Regular calibration: In order to ensure the accuracy of the polarimeter, it is necessary to perform regular calibration. Before calibration, the sample chamber and detector need to be cleaned and preheated to the set temperature. After that, the standard material is used for calibration and adjusted according to the data of the standard material to ensure the accuracy of the polarimeter.

6. Troubleshoot the fault

Timely contact professionals: In the process of use, if the polarimeter failure or abnormal phenomenon, such as poor reading repeatability, reading drift, sound, etc., should be timely contact professional and technical personnel for inspection and treatment, do not do it yourself when the situation is unclear.

Record the fault symptom: Before contacting professionals, it is best to record the fault symptom and occurrence time so that professionals can locate and resolve the problem more quickly.

Through the above maintenance and maintenance measures, you can ensure the long-term stable operation and accurate measurement of the optical rotator (polarimeter), improve its service life and reliability.

2025-03-21 17:15