1. Connect the air intake pipe behind the vacuum drying box to the vacuum pump with a vacuum rubber hose and turn on the vacuum pump power supply.
2. The items to be dried are placed in a vacuum drying box, the box door is closed, the air release valve is closed, the vacuum valve is opened, and then the vacuum pump power is turned on to start pumping, so that the degree of vacuum in the box reaches -0.09 to -0.1 MPa. Close the vacuum valve and turn off the vacuum pump power switch.
3. Turn the power switch to “1â€, the power indicator light is on, and there is a digital display on the temperature controller.
4. Temperature setting When the required temperature is the same as the set temperature, it does not need to be set, otherwise it needs to be set again. First press the temperature controller's function key "SET" to enter the temperature setting state, SV setting display flash, then press the shift key "?" with "â–³" or "â–½" to set the end of the function button " SET" confirmation.
If you need to set the temperature 150.0 °C, the original set temperature is 86.5 °C, first press the function key "SET", then press the shift key "", the cursor is moved to the hundreds of digits on the display, and then press "â–³" to make 100 The digits are raised from “0†to “1â€. After the digits are set, move the cursor to set the ten digit, one digit and quintile digits in order, so that the set temperature is displayed as 150.0°C. Press the function key “SET†to confirm , temperature setting is over.
5. After the setting is completed, all data are stored for a long time. At this time, the incubator enters a warming state, and the heating indicator lights up. When the temperature inside the box is close to the set temperature, the heating indicator is suddenly turned on and off repeatedly. The control enters the constant temperature state several times.
6. According to different items of different degrees of humidity, choose a different drying time, such as a longer drying time, reduced vacuum, need to pump again to restore the vacuum, you should first open the vacuum pump click switch, and then open the vacuum valve.
7. After drying, the power should be turned off first, and the air release valve should be turned to release the vacuum inside the box. Then open the door to take out the items. After the vacuum is released, the sealing ring and the glass door are not easy to open immediately after they are sucked and deformed. It is only after waiting a moment for the sealing ring to return to the original shape to facilitate the opening of the door.
Second, the matters needing attention 1. Incubator shell must be effectively grounded to ensure safe use.
2. When the vacuum box does not require continuous pumping, the vacuum valve should be closed before the vacuum pump motor power is turned off. Otherwise, the vacuum pump oil must be poured back into the box. Vacuum pumping rate is not less than 2L per second.
3. When taking out the articles to be treated, if the articles are treated as flammable, they must be cooled to a temperature lower than the burning point before they can be put into the air so as to avoid oxidation and combustion.
4. The vacuum box is not explosion-proof and must not be placed in explosive materials.
5. The parameters of the P, I, D, T, and LCK functions in the cycle setting of the temperature controller have been adjusted before leaving the factory. Please do not arbitrarily adjust it. For adjustment, please contact the factory.
First, use method: