Did you notice the grinding safety?
Drop the mortar and pick up the samples from Hede. All the grinds are used for the extraction. Molecular experiments are traced back to the source. The genetic code is gradually replaced by the traditional manual grind grinding method, and the grinder is used in the experiment. For a high-frequency vibration instrument, what safety issues should you pay attention to when using it?
Let's put aside the problem first. Let's talk about the working principle and operation method of the grinder. Only when you know the instrument better can you find out the problem:
Working principle: Through the mechanical transmission, the grinding beads in the centrifuge tube are driven to the left or right or the upper and lower sides to make irregular movements, so that the grinding beads continuously hit the sample, thereby reaching the crushing effect.
Grinder operation process:
1. Select the appropriate adapter according to the sample size.
2, the sample is placed in the EP tube
3, add grinding beads
4. In case of difficult samples, it can be placed in liquid nitrogen freezing treatment.
5. Place the EP tube in the adapter.
6. Install the adapter into the spindle buckle and fasten it with a tightening nut.
7, set the grinding parameters, start 
From the operational process, we find the problem:
1, the adapter, the probability of this problem is relatively small.
2. Place the sample in the EP tube.
This is the first question we should pay attention to: the EP tube.
The EP tube must be thick arm so that it can withstand the impact. Several air tube tests can be done before determining the tube.
3, grinding beads, this is only based on sample selection.
Not easy to be too big, too big to break the tube; not too small, too small enough force, resulting in insufficient grinding.
4, liquid nitrogen freezing treatment, this attention to protect, to avoid liquid nitrogen frostbite.
5. Place the EP tube in the adapter. In the excess placed, pay attention to the trimming. If the grinder is in the process of high-frequency oscillation, if the center column is moving up and down, there will be an offset, which is unsafe for the service life of the instrument and during use.
6. Install the adapter into the spindle buckle and tighten the nut.
Be sure to tighten the fastening nut. If it is not tightened, the adapter will impact up and down, which can easily cause a column accident.
7. Set the parameters of the grinder. Just pay attention to this, time is not too long, such as half an hour, 1 hour.
When we look for questions and pay attention to these problems, we can protect ourselves and protect the samples. 
Common fault analysis and troubleshooting methods
1. Clicking to start does not start normally. * Please check the sensor switch at the opening and whether it is pressed. Set the frequency is too low.
2. After starting, there is a big collision sound in the device.
*Please check if the bottom shipping fixing nut is removed. Whether the adapter anti-loose buckle is vertical.
3. After the power is turned on, the program displayed on the display shows “Communicationâ€. *Please check if the data cable on the back of the display is loose.
4. The adapter and the gland have unstable jitter during use. * The nut of the fixed adapter may be worn out. Contact Hurd to replace the new nut.
5. The power switch light is on and the display is not displayed. * The device display connector is loose. Please contact the after-sales personnel for repair.
6. During use, or after a long period of non-use, the equipment does not respond if it is confirmed that the power supply is properly connected and the startup operation is correct. * The equipment has been self-protected in the event of a short circuit. Contact the after-sales personnel to replace the fuse.
7. The spindle of the fixed adapter inside the instrument is obviously loose or broken, or the internal parts of the instrument are faulty. * Contact our company for factory maintenance.
The above are common fault analysis and troubleshooting methods. For other faults, please contact our customer service department or directly to the repair point designated by the company for repair. Do not disassemble and repair it yourself.
Beijing Hede Technology Co., Ltd.
Fax website:
Address: Beizhuang Village, Beizhuang Town, Miyun District, Beijing Commercial Office Address: 2/F, Block B, Commercial Building, Nanli Community, Lane Gully, Haidian District, Beijing
ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.sdsmedtools.com