Introduction to the common faults of polarimeters and how to deal with them

Introduction to the common faults of the polarimeter and the treatment methods.
Any instrument and equipment will have more or less faults in the process of use.
Only by handling it correctly can the instrument or equipment maintain a good working condition.
The polarimeter is no exception.
We have sorted out common faults and solutions, hoping to help everyone
.

1.
High frequency of damage: ① The instrument should be placed in a dry place to prevent moisture and mildew, so as to avoid damage to the circuit and optical system
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Avoid frequent contact with corrosive gases and avoid severe vibration
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The power supply should be stable (with regulated power supply)
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②Turn on the power switch and let the instrument warm up and stabilize before sampling
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Stabilize sodium lamps
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Turn on the light source switch before measurement (the sodium lamp is lit under DC power supply at this time), and then measure the sample
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③ The samples are collected together for determination
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Reduce frequent switching of polarimeter
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Do not turn on the light source switch when the sample is not being measured
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④The polarimeter tube should be screwed up so that it does not leak and does not contaminate the instrument
.

 　　2.
The number of optical rotation changes greatly: ①The dissolved sample contains suspended matter, you can try to filter it, and then test; ②It may be that the polarimeter has been running for a long time and the temperature has increased
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 　　3.
Turn on the power switch, the sodium lamp does not glow: ①The power switch may be broken, replace the power switch or return to the factory for repair; ②The sodium lamp is broken, and the sodium lamp can be replaced
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 　　4.
After turning on the power switch, and then turning on the light source switch, the sodium lamp does not light up: ① the sodium lamp preheating time is not enough, the AC preheating time can be extended; ② the circuit board is broken, replace the corresponding circuit board; ③ the light source switch is broken, replace the light source switch or return to the factory for repair
.

 　　5.
Polarimeter The sodium lamp emits abnormally (white light or the sodium lamp is very bright): ① the sodium lamp is broken, replace the sodium lamp; ② the sodium lamp is broken or the circuit board is broken, first replace the sodium lamp, and then replace the circuit board
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 　　6.
Press the "Measure" button, the LCD screen has no display: ①The key contact is not good, press the "Measure" button again; ②The display board is broken, replace the display board; ③The counting board is broken, replace the counting board
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 　　The above is the relevant introduction about the common faults of the polarimeter and the treatment methods.
I believe that everyone has a corresponding understanding of this after reading, and I hope it will be helpful to everyone
.