Four-ring lyophilization experimental lyophilizer what causes tripping

For the use of four-ring lyophilization experimental lyophilizer, pre-use inspection is an extremely critical step, do not think that you can operate the lyophilizer without inspection! To avoid some improper operation and failure, it is still necessary to check well: before each time the lyophilizer is turned on, first check whether the pump oil in the vacuum pump is sufficient
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Unscrew the drain valve to allow the remaining water inside to flow out
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Drain and then tighten the valve; Check whether the contact part of the lyophilized chamber with the cold trap is intact, clean and readjust if necessary; Close all valves
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Close the valve
to which the cold trap is connected to the vacuum pump.

Turn on the cold trap power switch, turn on the vacuum pump power switch
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After 15 minutes, open the valve
where the cold trap is connected to the vacuum pump.

After 1 minute, the pre-frozen sample (already in the lyophilized bottle) can be hung on the holder, and the lyophilization process can be carried out after opening the corresponding valve; When lyophilization is complete, close the corresponding valve (white knob up) and remove the lyophilized bottle
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After all lyophilized bottles are removed, turn off the vacuum pump power supply and the cold trap power supply in turn; After the frost in the cold trap has melted, open the drain valve for drainage, and then close
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When the four-ring lyophilization experimental lyophilizer is used, there will be a variety of reasons affecting its normal operation, such as frequent tripping, what is the cause? 1.
The ambient temperature of the area is high, and no cooling measures have been taken, resulting in abnormal internal conditions; 2.
The space and the outside world are not well ventilated, and the heat cannot be discharged in time; 3.
The power supply is unstable, the contact is poor or other factors, causing the voltage to fluctuate too much; 4.
The current use of the machine processing capacity is compared, and the actual demand is larger, and there is overload driving; 5.
The control instrument fails
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If the freeze dryer trips, there is no way to work normally, so when this problem occurs, it must be dealt with in time, and find the specific cause of the tripping to fundamentally solve the problem
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