Daily use of maintenance knowledge of small laboratory high and low temperature circulation devices

Laboratory explosion-proof high and low temperature circulation device is widely used in pharmaceutical chemical, medical, scientific research and other fields, using mechanical refrigeration to obtain low temperature heating tube heating to obtain high temperature, non-leakage canned pump as circulating pump, with double-layer glass reactor, stainless steel sandwich reactor and other equipment to use
.


1.
After receiving it, open the wooden box and install the inlet and outlet valves on the inlet
.

(Note: The liquid inlet and outlet are marked on the top of the machine, the valve is a stop valve, the valve medium flows in a direction, and the valve is marked with the flow direction
.

2.
Connect the valve and the reactor with a hose, the inlet and outlet of the reactor should be bottom in and top out , to ensure that the reactor remains full of liquid
.

3.
Open the liquid filling hole of the high and low temperature tank, add the medium into the machine, turn on the circulation switch of the machine, and let the liquid circulate in the whole system
.

(Note: the air in the system should be emptied) 4.
Cooling The medium should meet the conditions
of use
(ie no freezing under low temperature conditions, no boiling under high temperature conditions)
.

　　6.
When the material needs to be lowered to room temperature at high temperature, it is necessary to turn off heating and turn on pre-cooling.
At this time, the material can be lowered to room temperature by cooling
.

　　7.
When it needs to be lower than room temperature, the material should be lowered to room temperature first, and then the setting Set to the required equipment, turn on the refrigeration, the compressor will enter the working state, and the equipment will start to cool down
.

8.
Turn on the power and press the switch key, the window displays enter the working state, the upper window of the display window displays the measured temperature, and the lower window displays the current setting.
9.
Press the set key, and the lower window displays the set temperature with the addition and subtraction of the set temperature
.