电热鼓风干燥箱操作规程.docVIP

电热鼓风干燥箱操作规程 电热鼓风干燥箱操作规程提要：其刻度相对，开启温1和加热2开关，控温仪表绿灯亮，红灯灭，炉丝通电，此时箱内开始升温。同时可打开鼓风开关 自 电热鼓风干燥箱操作规程 ①该箱安放在室内干燥及水平处。 ②应在供电线路中安装闸刀开关一个，供此箱专用，并使箱体好接地。 ③通电前先检查绝缘电阻≥Ω，并检查线路有无短路、断路现象。 ④合上闸刀开关，接通电源后，将控温仪选择盘设定所需温度，使其刻度相对，开启温1和加热2开关，控温仪表绿灯亮，红灯灭，炉丝通电，此时箱内开始升温。同时可打开鼓风开关，使其工作，随着炉温上升，温度指示针能及时显示测量温度值。当达到设定值时，仪表红灯亮，绿灯灭，切断加热电源，温度逐渐下降，降至设定值时，控温仪表有转至绿灯亮，箱内生温，周而复始，可使箱内温度保持在设定值附近。 ⑤初始加热时，由于热惯性，尽管炉丝已断电但箱内温度还会上升，故每次开机前最好把设定值在所需温度的80%左右，待几次开关动作后再设定值在所需值。即可避免开机的升温过冲现象（100℃之内冲击值一般不超过10℃）。 ⑥红绿灯交替半小时，观察插入排气孔中温度计指示值是否与仪表指针或显示的温度值是否相符，此时干燥箱进入正常工作状态。 ⑦恒温时可关闭加热2开关，只留恒温1一组炉丝工作，以免功率过大影响恒温灵敏度。在此工作过程中恒温箱由控温仪自动控温，不需人工管理。 ⑧观察工作室内试品情况，不需开启箱门，通过双重耐高温玻璃即可观察，箱门不常打开，以影响恒温，且箱内达到高温时开启箱门可能会使玻璃急聚冷却而破裂。 ⑨干燥箱连续工作时应根据试品需要酌情关闭电机使之间休，以便延长电机寿命。 ⑩试品恒温完毕，关闭开关，同时拉下闸刀开关。 自 Measures for the routine management of moral education in Middle SchoolsMethod of conventional management of moral education in middle schoolFirst, the guiding ideology:School moral education is an organic whole of the whole education work, always adhere to the school adhere to the moral education, education for this product, and actively promote the quality education, the school building efficient curriculum system of moral education, moral education, improve the sense of attraction and appeal, enhance the moral education work for through and timeliness. Teach everyone, service education and management education, and school moral education work must be with family education and community education closely together, to form a concerted pattern, and strive to create a good atmosphere for education, and to promote the all-round development of students, to establish a scientific moral education full of vigor the For long-term mechanism.Two, the goal of moral education:To guide the students to form the correct world outlook, outlook on life, values, to cultivate students unity and mutual assistance, honest and trustworthy, law-abiding, good quality, hard work, set a good XX students ideological quality, psychologic