Instruction manual of Shanghai Bilang constant temperature sink,
The use process of the constant temperature sink is detailed:
1. Add liquid medium into the tank, and the liquid level of the liquid medium cannot be lower than 30mm of the worktable.
2. Selection of liquid medium:
A: When the temperature is adjusted to 80 ℃, the liquid medium is generally pure water.
B: When the working temperature is 80--90 ℃, the liquid medium generally uses 15% glycerin aqueous solution.
C: When the working temperature is above 95 ℃, the liquid medium generally uses oil, and the open cup flash point of the selected oil should be higher than the working temperature by above 15 ℃.
3. Connection of circulation pump
A: For the connection of the internal circulation pump, connect the outlet pipe to the inlet pipe with a hose.
B: The external circulation pump is used for external circulation connection. The liquid outlet pipe is connected with a hose to the inlet of the tank outer container, and the liquid inlet pipe is connected to the tank outer container outlet.
4. When using a super constant temperature bath, if the working temperature is> 100 ℃, it is recommended that the external pipe of the circulation pump should be a metal pipe or a silicone pipe.
5. Plug in the power and turn on the "Power" switch.
Precautions for using constant temperature water tank:
1. Use 220V AC power supply. The power socket should use a three-hole safety socket. It must be properly grounded, and the ground wire should not be connected to the gas pipe.
2. Before energizing, the water should be injected into the pot above the partition, the heating tank should not be exposed to the water surface.
3. Rotate the adjusting knob, and adjust to the use value through the temperature control meter display.
4. If you need to use 100 ℃ boiling water for distillation, add too much water to avoid overflow when boiling.
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