Atomfair Infrared Spectrophotometer Product Information
Product Name
Atomfair-IRSpec-639 Infrared Spectrophotometer
Product Overview
Atomfair-IRSpec-639 Double Beam Ratio Recording Infrared Spectrophotometer adopts the principle of computer direct ratio recording, equipped with a general-purpose high-performance computer and Chinese control data processing software. It features reliable performance, simple operation and complete functions. With advanced technical design and stable performance, this product can be widely used in various industrial fields and is an indispensable analytical testing instrument for scientific research, production and teaching.
Application Scope
It can be widely used in petroleum, chemical industry, pharmaceuticals, environmental protection, teaching, materials science, public security, national defense, health quarantine, food, optical coating, optical communication, jewelry, coal, polymer materials and other fields to meet various analytical testing needs in scientific research and industrial production.
Core Application Scenarios
- Compound identification and unknown compound structure analysis
- Compound quantitative analysis
- Research on chemical reaction kinetics, crystal transformation, phase transition, and the transient relationship between material stretching and structure
- Continuous detection of industrial processes and air pollution
- Monitoring of free silica in the coal industry
- Quartz hydroxyl measurement
- Polymer composition analysis
- Pharmaceutical analysis
- Infrared lens transmittance measurement
Performance Features
- Adopts the principle of computer direct ratio recording to ensure analysis accuracy
- Equipped with a high-energy double blazed grating to cover the entire working waveband
- Equipped with a general-purpose high-performance computer for instrument control and data processing
- Adopts imported vacuum thermocouple infrared receiving device to ensure high performance and reliability of the instrument
Technical Indicators (International Standard)
| Item | Parameter |
| Wavenumber Range | 4000 – 400 cm⁻¹ |
| Wavenumber Accuracy | ≤±4 cm⁻¹ (4000 – 2000 cm⁻¹); ≤±2 cm⁻¹ (2000 – 400 cm⁻¹) |
| Resolution | 1.5 cm⁻¹ (around 1000 cm⁻¹) |
| Transmittance Accuracy | ≤±0.2%T (excluding noise level) |
| Io Line Flatness | ≤±2%T |
| Stray Light | ≤0.5%T (4000 – 650 cm⁻¹); ≤1%T (650 – 400 cm⁻¹) |
| Test Mode | Three types (Transmittance, Absorbance, Single Beam) |
| Scanning Speed | Five gears (Very Fast, Fast, Normal, Slow, Very Slow) |
| Slit Program | Five gears (Very Wide, Wide, Normal, Narrow, Very Narrow) |
| Response | Four gears (Very Fast, Fast, Normal, Slow) |
| Working Mode | Three types (Continuous Scanning, Repeat Scanning, Fixed Wavelength Scanning) |
| Horizontal and Vertical Coordinate Expansion | Arbitrary |
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
What are the wavenumber accuracy specifications for the Atomfair-IRSpec-639 across the full wavenumber range?
The Atomfair-IRSpec-639 achieves ≤±4 cm⁻¹ accuracy in the 4000–2000 cm⁻¹ range and ≤±2 cm⁻¹ in the 2000–400 cm⁻¹ range. This dual specification ensures reliable peak identification in both the functional group and fingerprint regions.
What test modes are available on the Atomfair-IRSpec-639 and what are their typical applications?
The instrument supports three test modes: Transmittance, Absorbance, and Single Beam. Transmittance mode is used for standard transmission measurements, Absorbance mode for direct Beer-Lambert analysis, and Single Beam mode for background correction or specialized measurements. Additionally, the instrument can perform continuous, repeat, and fixed wavelength scanning.
What type of infrared detector does the Atomfair-IRSpec-639 use and how does it affect performance?
The Atomfair-IRSpec-639 uses an imported vacuum thermocouple as its infrared receiving device. A vacuum thermocouple provides high sensitivity and stability for thermal infrared detection, contributing to the instrument's transmittance accuracy of ≤±0.2%T. This detector choice ensures reliable performance across the 4000–400 cm⁻¹ range.
The Atomfair-IRSpec-639 Double Beam Ratio Recording Infrared Spectrophotometer delivers a 4000–400 cm⁻¹ wavenumber range with 1.5 cm⁻¹ resolution and dual-grating optics, making it suitable for compound identification, quantitative analysis, and process monitoring across multiple industrial and research sectors. Its operational flexibility is balanced by the need for controlled environmental conditions and user expertise to maintain specified accuracy and repeatability.
Positive
- High-resolution double-beam optics: The double-beam ratio recording design with a high-energy dual blazed grating provides a resolution of 1.5 cm⁻¹ at 1000 cm⁻¹ and covers the full 4000–400 cm⁻¹ range, enabling precise compound identification and structural analysis.
- Versatile multi-mode operation: Three test modes (transmittance, absorbance, single beam), five scanning speeds, and five slit programs allow adaptation to diverse analytical tasks, from quantitative analysis to reaction kinetics and industrial process monitoring.
Trade-offs
- Environmental sensitivity requires controlled lab: The instrument's accuracy (≤±4 cm⁻¹ in 4000–2000 cm⁻¹) and stray light performance (≤0.5%T) depend on stable temperature, humidity, and vibration-free conditions; deviations can degrade spectral quality and repeatability.
- User expertise needed for optimal results: Proper sample preparation, cell handling, and method development are essential to avoid artifacts and ensure reliable quantitative and qualitative measurements, particularly for complex matrices like polymers or pharmaceuticals.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).






