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How to operate and maintain an automatic polarimeter An automatic polarimeter is one of the types of polarimeters, so how should it be operated? How should it be maintained? Let's follow the editor to increase knowledge
.
Operation method of automatic polarimeter (1) Insert the power plug of the instrument into the 220V AC power supply, [requires the use of an AC electronic voltage stabilizer (1KVA)] and ground the ground pin reliably
.
(2) Turn on the power switch, and it needs to be preheated by the sodium lamp for 5 minutes to make it glow stably
.
Turn on the DC switch, (if the sodium lamp goes out after the DC switch is turned on, turn the DC switch up and down repeatedly 1 to 2 times to make the sodium lamp light under DC, which is normal
.
) (3) Turn on the indicator Turn on the digital switch and adjust the zero position handwheel to make the optical rotation display zero
.
(4) Put the test tube containing distilled water or other blank solvent into the sample chamber and close the box cover
.
If there are air bubbles in the test tube, let the air bubbles float on the convex neck first; mist water droplets at both ends of the clear surface
.
Wipe dry with a soft cloth
.
The cap of the test tube should not be over-tightened, so as not to cause stress and affect the reading
.
When placing the test tube, pay attention to the position and orientation of the mark
.
(5) Take out the test tube
.
Inject the sample to be tested into the test tube, put it into the sample chamber in the same position and direction, and close the box cover
.
The dial will turn out the optical rotation of the sample
.
The red indication on the dial is left-handed (-) and the black indication is right-handed (+)
.
(6) Press the re-measure button one by one, repeat the reading several times, and take the average value as the measurement result of the sample
.
(7) If the sample exceeds the measurement range, the instrument automatically stops at ±45
.
At this point, take out the test tube, press the reset button switch, and the instrument will automatically return to the zero position
.
(8) After the automatic polarimeter is used, turn off the display, DC and power switches in turn
.
(9) When the sodium lamp cannot be used due to the failure of the DC power supply system, the instrument can also be tested under the condition of AC power supply of the sodium lamp, but the performance of the instrument may be slightly reduced
.
Automatic polarimeter maintenance items 1.
Whether the instrument is placed in a dry and ventilated place to prevent moisture erosion
.
Use the instrument in a working environment of 20°C as much as possible
.
2.
Check whether the front light source (sodium lamp) is dusty or damaged, and whether the lamp works abnormally
.
3.
If the sodium lamp does not light up or there is any other abnormality, please open the case for cleaning or replacement, and check the fuse
.
4.
Check whether the frictional resistance of the mechanical department increases and abnormality occurs during the operation of the equipment
.
The rear panel can be opened, and a little bell oil can be added to the bevel gear worm gear
.
5.
Desiccant should be placed in the sample room after the instrument is used, and the desiccant (color-changing silica gel) should be kept dry
.
6.
The polarimeter should be kept clean after each use
.
7.
If the equipment does not run for a long time, the equipment should be preheated to check whether all parts of the equipment are working properly.
If the instrument finds faults such as stalling or damage to other components, it should be checked in detail according to the electrical schematic diagram or notified to the manufacturer by the manufacturer.
Maintenance personnel perform repairs
.
8.
After each test, whether the operator has done a good job of cleaning equipment hygiene and use record registration
.
The above is the relevant introduction about the operation method and maintenance instructions of the automatic polarimeter.
I believe that everyone has a corresponding understanding of this after reading it, and mastering the relevant matters can be handy during operation, and I hope it will be helpful to you
.
.
Operation method of automatic polarimeter (1) Insert the power plug of the instrument into the 220V AC power supply, [requires the use of an AC electronic voltage stabilizer (1KVA)] and ground the ground pin reliably
.
(2) Turn on the power switch, and it needs to be preheated by the sodium lamp for 5 minutes to make it glow stably
.
Turn on the DC switch, (if the sodium lamp goes out after the DC switch is turned on, turn the DC switch up and down repeatedly 1 to 2 times to make the sodium lamp light under DC, which is normal
.
) (3) Turn on the indicator Turn on the digital switch and adjust the zero position handwheel to make the optical rotation display zero
.
(4) Put the test tube containing distilled water or other blank solvent into the sample chamber and close the box cover
.
If there are air bubbles in the test tube, let the air bubbles float on the convex neck first; mist water droplets at both ends of the clear surface
.
Wipe dry with a soft cloth
.
The cap of the test tube should not be over-tightened, so as not to cause stress and affect the reading
.
When placing the test tube, pay attention to the position and orientation of the mark
.
(5) Take out the test tube
.
Inject the sample to be tested into the test tube, put it into the sample chamber in the same position and direction, and close the box cover
.
The dial will turn out the optical rotation of the sample
.
The red indication on the dial is left-handed (-) and the black indication is right-handed (+)
.
(6) Press the re-measure button one by one, repeat the reading several times, and take the average value as the measurement result of the sample
.
(7) If the sample exceeds the measurement range, the instrument automatically stops at ±45
.
At this point, take out the test tube, press the reset button switch, and the instrument will automatically return to the zero position
.
(8) After the automatic polarimeter is used, turn off the display, DC and power switches in turn
.
(9) When the sodium lamp cannot be used due to the failure of the DC power supply system, the instrument can also be tested under the condition of AC power supply of the sodium lamp, but the performance of the instrument may be slightly reduced
.
Automatic polarimeter maintenance items 1.
Whether the instrument is placed in a dry and ventilated place to prevent moisture erosion
.
Use the instrument in a working environment of 20°C as much as possible
.
2.
Check whether the front light source (sodium lamp) is dusty or damaged, and whether the lamp works abnormally
.
3.
If the sodium lamp does not light up or there is any other abnormality, please open the case for cleaning or replacement, and check the fuse
.
4.
Check whether the frictional resistance of the mechanical department increases and abnormality occurs during the operation of the equipment
.
The rear panel can be opened, and a little bell oil can be added to the bevel gear worm gear
.
5.
Desiccant should be placed in the sample room after the instrument is used, and the desiccant (color-changing silica gel) should be kept dry
.
6.
The polarimeter should be kept clean after each use
.
7.
If the equipment does not run for a long time, the equipment should be preheated to check whether all parts of the equipment are working properly.
If the instrument finds faults such as stalling or damage to other components, it should be checked in detail according to the electrical schematic diagram or notified to the manufacturer by the manufacturer.
Maintenance personnel perform repairs
.
8.
After each test, whether the operator has done a good job of cleaning equipment hygiene and use record registration
.
The above is the relevant introduction about the operation method and maintenance instructions of the automatic polarimeter.
I believe that everyone has a corresponding understanding of this after reading it, and mastering the relevant matters can be handy during operation, and I hope it will be helpful to you
.
