1、 Vacuum debugging method

调试前，我们需要关闭真空干燥机箱的门，拧紧门把手，然后关闭放气阀，打开真空阀。当然，一次使用时，真空阀的开关可能很紧，可以用力旋转。我们可以使用随机附件进行真空连接管，牢固连接真空干燥的抽气管和真空泵。当接通真空泵电源时，需要开始抽气，当真空计的指示值达到-0.1Mpa时，需要先关闭真空阀，然后再关闭真空泵电源，以防止真空泵中的油倒流到工作室内，这时真空干燥器内部就处于真空状态。

Before debugging, we need to close the door of the vacuum drying cabinet, tighten the door handle, then close the vent valve and open the vacuum valve. Of course, the switch of the vacuum valve may be very tight when it is used once, and it can be rotated by force. We can use the attached accessories to connect the vacuum pipe, and firmly connect the suction pipe and vacuum pump for vacuum drying. When the vacuum pump power is connected, it is necessary to start pumping. When the indication value of the vacuum gauge reaches -0.1mpa, it is necessary to close the vacuum valve first, and then turn off the power supply of the vacuum pump, so as to prevent the oil in the vacuum pump from flowing back into the working room. At this time, the vacuum dryer is in a vacuum state.

二、机内调试方法

2、 Internal debugging method

先打开真空干燥器的电源，然后它的电源灯亮起并进行自检，然后此时也就表明已进入状态。设定真空干燥机的温度，设定机内的温度接近指定温度时，加热开始进入PID调节阶段，仪表测定温度超过设定温度，伸长也低于设定温度是正常现象。

First turn on the power supply of the vacuum dryer, then its power light will light up and carry out self-test, and then it indicates that it has entered the state. Set the temperature of the vacuum dryer. When the temperature in the dryer is close to the specified temperature, the heating begins to enter the PID regulation stage. It is normal that the temperature measured by the instrument exceeds the set temperature and the elongation is lower than the set temperature.

因此，在测量温度时如果已经接近或等于设定温度，再过1-2小时之后就几乎可以进入恒温状态。如果需要的温度比较低，我们可以采用二次设定的方法，让它尽快进入恒温状态。

Therefore, if the measured temperature is close to or equal to the set temperature, it can almost enter the constant temperature state after 1-2 hours. If the required temperature is relatively low, we can use the secondary setting method to let it enter the constant temperature state as soon as possible.