The DLSB-series low temperature circulating pump is a cryogenic liquid circulating device that uses mechanical refrigeration. It has the function of providing a cryogenic liquid and a low temperature water bath. Combined with rotary evaporator, vacuum freeze drying oven, circulating water vacuum pump, magnetic stirrer and other instruments, the chemical reaction operation and drug storage under multi-functional low temperature are carried out.
1. When the low temperature coolant circulation pump is used, the degree is not displayed. In this case, it may be the circuit board connection line, whether it is bad contact, whether the sensor is falling off, etc., you can plug in the connection line, dry the circuit board and start up. .
2. When there is no cooling phenomenon, it may be due to system problems, such as system leakage, and the cause of dirty system blockage. Only professional personnel can be found for maintenance, and the cooling rate is slow and the same.
3. When using this equipment again, there is no external circulation. First, check if the circulation pump is blocked. If it is blocked, just remove the blockage, or the power box will fall off, or the valve will not open. problem appear.
4. When the whole machine has no power failure, check whether the fuse is blown. If it is only necessary to replace the fuse, there is another possibility that the phase sequence of the power supply is wrong. Just adjust the position of the two fire lines. used.