1786-RPFRXL
1786-RPFRXL
1786-RPFRXL
电热恒温干燥箱通常又称烘箱。用于烘干试样、试剂、器皿、沉淀以及测定湿存水等加热元件是电热丝，使用温度可达200℃常用温度在 100-150 ℃之间。
常用的烘箱有两种。一种箱内热传导是靠自然对流，烘箱热源是烘箱底部的电热丝这种烘箱内温度的均匀程度与箱顶插温度计的通风孔的关系很大，如通风孔调节合适，可使箱内高层与低层的温差小些。另一种用机械鼓风的方法，使箱内温度均匀，因此又称电热鼓风干燥箱。电热丝在底部或旁边(旁热式)均可，因为通风较好，箱内温度较均匀，被烘物能迅速干燥。
加热用电热丝分两组，一组为辅助加热，用于急需在短时间内加热升至高温;另一组用于保持恒温，其发热单元与自动控温系统相接。
有些烘箱采用数字温度显示调节仪自动控温，使用方便，控制灵敏，工作稳定，温度显示直观、准确。有的产品还设有温保护装置。
厦门泰尼电气有限公司
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