In the regular scenarios such as spectral teaching experiments, optical component calibration, photovoltaic spectral response testing, thin film optical detection, environmental spectral analysis, and basic photocatalysis research, many experimental errors arise from insufficient spectral resolution, high stray light, spectral line distortion, long-term scanning wavelength drift, and susceptibility to optical cavity contamination. Ordinary entry-level monochromators have insufficient optical path optimization and poor transmission stability, which can lead to baseline elevation, feature peak distortion, and poor data repeatability over time. This not only affects experimental accuracy but also causes frequent equipment calibration and high maintenance costs, making it unsuitable for regular scientific research and batch industrial detection requirements.

The Sefan Optoelectronics 7IMS30 series monochromatic scanning monochromator is a high-performance universal spectrometry device based on a 300mm standard focal length. It is equipped with an optimized asymmetric Czerny-Turner aberration cancellation optical path, a secondary dispersion elimination structure, and an independent cavity dust-proof design. Combined with a precise sine drive system, it offers high spectral resolution, ultra-low stray light, precise and stable wavelength, dust-proof and anti-pollution capabilities, dual manual and electric control, and high scalability and compatibility. It balances high performance and high cost-effectiveness, becoming the standard main spectrometry equipment for university teaching laboratories, basic research platforms, and photovoltaic industrial quality inspection lines.

Optimized optical path, low stray light, high resolution, true and detailed spectrum reproduction

The 7IMS30 series adopts an asymmetric horizontal Czerny-Turner optical path + aberration cancellation and secondary dispersion elimination dual optimization design. It corrects spectral line asymmetry, diffraction distortion, and high-order stray light interference from the optical root, effectively suppressing stray light and completely improving the common problems of large baseline noise and spectral line broadening in conventional monochromatic devices. The equipment is equipped with a 1200 lines/mm high-precision grating, with a spectral resolution of up to 0.1nm, a minimum scanning step as low as 0.00625nm, excellent wavelength accuracy and repeatability, capable of accurately capturing fine spectral features, clearly distinguishing overlapping spectral lines, and perfectly adapting to various fine spectral detection requirements. The entire spectral scanning range covers 0?1100nm, fully covering the mainstream experimental wavelength bands of ultraviolet, visible, and near-infrared, suitable for various spectral analysis and precise single-color output scenarios. The dual-cavity isolation structure, dust-proof and anti-pollution, long-term stable without attenuation

Unlike the traditional integrated cavity that is prone to accumulation of dust and contamination by lubricating oil, the 7IMS30 series adopts a physical isolation architecture of optical cavity and mechanical transmission cavity, completely preventing mechanical movement from introducing oil and dust into the optical components. Long-term use results in clean mirror surfaces and stable light transmission performance, eliminating problems such as light attenuation, increased stray light, and decreased accuracy caused by optical contamination. This significantly extends the equipment's service life and reduces downtime for calibration and maintenance costs. The slit is designed with a continuous symmetrical adjustable range of 10μm?3mm, combined with an automatic edge protection mechanism, balancing ultra-high light transmittance efficiency and precise spectral analysis accuracy. Weak light signal acquisition and strong light band testing can both output pure spectra stably. At the same time, a nitrogen gas filling interface is reserved to eliminate atmospheric absorption interference and meet the requirements for high-precision testing in special wavelength bands.

Precise sine drive, ultra-low drift, suitable for long-term continuous testing

The core transmission unit of the equipment is equipped with a precise grinding sine screw + ultra-maintainable linear guide rail combination. The transmission is smooth, noise-free, without travel error, and mechanical stability is fully achieved. Long-term high-frequency continuous scanning has no accuracy attenuation or wavelength deviation. It is perfectly suitable for long-term scientific research experiments, industrial batch detection, and dynamic spectral tracking, eliminating the need for frequent shutdown for calibration, significantly improving experimental efficiency and data consistency. The entire machine supports manual handwheel adjustment + computer automatic scanning dual control mode. The manual mode is intuitive and suitable for teaching practice, while the electric mode can complete wavelength scanning, fixed-point locking, and automatic parameter recording in one click, balancing teaching demonstration and precise research needs.

It is easy to expand and can quickly set up an integrated spectroscopy system.

The 7IMS30 series has extremely strong expansion adaptability. It can seamlessly connect with all models of Xe lamps, halogen lamps, deuterium lamps, and mercury lamps from Sifan. It is compatible with various fiber optic interfaces, photodetectors, integrating spheres and other accessories. Without complex debugging, it can quickly build a standardized spectroscopy testing platform integrating light source, spectrometer and detector. The equipment supports flexible replacement of multiple specifications of gratings and can switch the test wavelength as needed, adapting to different experimental schemes for iterative upgrades. At the same time, it has multiple models with parallel and vertical outlets, which can be matched with various optical platform layouts, and its adaptability far exceeds that of general monochromators in the same category.

It is applicable in all scenarios and covers teaching, research and industrial applications.

With balanced precise performance, stable and long-lasting operation, and high cost-effectiveness, the 7IMS30 series is widely compatible with various scenarios such as university optical spectroscopy teaching, photodetector spectral response calibration, photovoltaic cell performance testing, optical film transmission and reflection detection, LED light source spectral calibration, environmental water quality and atmospheric spectral monitoring, basic photocatalysis and material optical characterization. It is suitable for regular scientific research experiments, teaching training, and industrial batch quality inspection. It is an indispensable core spectrometric equipment for basic spectroscopy laboratories.

300mm standard focal length optical path | Low astigmatism and low stray light, high resolution | Dual cavity isolation, dust-proof and anti-stain | Nanometer-level ultra-small scanning step | Manual and electric dual-mode operation | High compatibility and easy expansion of the entire system

Precise spectroscopy builds the foundation of experiments, stable performance empowers long-term research. The 7IMS30 series single grating scanning monochromator from Sifan, with mature optical technology, high-quality mechanical craftsmanship, low operation and maintenance costs, and high adaptability, balances precision and cost-effectiveness, fully empowering the popularization of spectroscopy teaching, basic scientific research innovation, and the improvement and upgrading of industrial precise detection!