The 77250-FC is a fully assembled, pre-aligned, Hand Operated Monochromator. The monochromator is based on an Ebert-Fastie design, placing the grating out of the path of the entrance and exit slits to eliminate re-entrant spectra. The hand operated design allows for output wavelength adjustment as accurate as 1 nm. A three digit counter display displays the output wavelength with resolution as great as 0.1 nm. Fixed Slit widths ranging from 50 µm to 6.32 mm in width (sold separately) are interchangeable, depending on the output resolution desired. These slit assemblies are ideal for general laboratory or academic use, in which a high accuracy and repeatability (especially at high resolution) are desirable. Fixed slit assemblies also provide a cheaper solution than the micrometer adjustable slit version of this monochromator, the 77250-MC, when only a few slit widths are required. Gratings are interchangeable, depending on the needs of the application, and cover a wavelength range from 200 nm to 23 µm. The 77387 mounting kit (sold separately) allows the monochromator to be mounted in a setup with an easily adjustable optical axis height to match that of a source and/or detector.


77250-FC是一个完全组装，预对准，手动操作单色器。单色器基于Ebert-Fastie设计，将光栅放置在入口和出口缝隙的路径之外，以消除可重入光谱。手工操作的设计允许输出波长调整精确到1纳米。三位数计数器显示输出波长，分辨率高达0.1 nm。固定的狭缝宽度从50µm 6.32毫米宽(单独出售)是可以互换的,取决于所需的输出分辨率。这些狭缝组件是理想的一般实验室或学术用途，其中高精度和重复性(特别是在高分辨率)是可取的。固定狭缝组件还提供了比这种单色器的微米可调狭缝版本(77250-MC)更便宜的解决方案，当时只需要几个狭缝宽度。光栅是可以互换的,这取决于应用程序的需要,并覆盖一个波长范围从200纳米到23µm。77387安装套件(单独销售)允许单色器安装在一个设置与光源和/或探测器的光轴高度匹配的容易调整的设置中。