Atomfair Disease Control Free Silica Tester
Product Overview
Atomfair Disease Control Free Silica Tester is a professional testing equipment developed in accordance with international general standards, specifically designed for disease control centers, coal mines, power plants, occupational health testing and other fields, focusing on the accurate detection of free silica content in respirable dust in the workplace. Equipped with an improved interferometer and fully digital electronic system, the equipment avoids the drawbacks of traditional testing methods, supports batch testing and intelligent analysis, with easy operation and reliable data, providing professional technical support for occupational health protection and dust hazard prevention.
Core Functions
- Precise Quantitative Detection: Based on the principle of infrared spectrophotometry, it can accurately determine the content of free silica (α-quartz) in dust, meeting international general testing accuracy requirements.
- Intelligent & Efficient Analysis: Equipped with powerful Chinese operation software, supporting data collection, processing, spectrum library search and report generation, which can automatically analyze 4 components in the mixture and give semi-quantitative results.
- Stable Data Transmission: High-speed USB2.0 (compatible with 3.0) interface realizes real-time collection of spectral data, compatible with multiple versions of Windows systems, facilitating data export and sharing.
- Strong Expansion Adaptability: Can connect to various accessories such as transmission, attenuated total reflection (ATR) and diffuse reflection, meeting the testing needs of different scenarios with outstanding versatility.
Technical Parameters (International Standard)
| Item | Specification |
|---|---|
| Spectral Range | 7800cm⁻¹~350cm⁻¹ |
| Resolution | Better than 1.0cm⁻¹ |
| Transmittance Accuracy | Better than 0.5 T% |
| Signal-to-Noise Ratio | Better than 30000:1 (P-P value, 4cm⁻¹ resolution, 1-minute test) |
| Power Supply | 100-240V, 50/60Hz (wide voltage design) |
| Data Transmission Interface | High-speed USB2.0 (compatible with 3.0) |
| Light Source | Imported long-life high-intensity air-cooled infrared light source (digital power supply technology) |
| Beam Splitter | Imported multi-layer coated potassium bromide (with moisture-proof coating), optional moisture-proof materials such as KRS-5, ZnSe, CaF2 |
| Detector | Imported high-sensitivity DLATGS detector |
| A/D Conversion | 24-bit, 500KHz |
| Interferometer | Non-orthogonal designed improved Michelson (DSP-controlled electromagnetic drive, continuous dynamic adjustment) |
| Laser | High frequency stability He-Ne laser, optional low-power long-life diode laser |
| Temperature & Humidity Monitoring | Built-in industrial-grade temperature and humidity module, digital display + humidity alarm device |
| Cavity Design | Integral sealed structure, built-in reusable desiccant in 304 stainless steel box |
| Sample Chamber | Sliding sample chamber door |
| Supported Systems | Windows XP, Windows 7, Windows 8, Windows 10 |
Product Features
- Excellent Optical Performance: Adopts 3D right-angle gold-plated mirror optical compensation technology, ensuring collimated optical path; core components are coated with special anti-fog coating, with high transmittance, moisture resistance and corrosion resistance.
- Intelligent & Easy Operation: Fully Chinese intelligent software with operation guidance, built-in about 1800 conventional standard spectra libraries (expandable to 220,000 professional spectra libraries), supporting spectrum annotation, format conversion and QC/QA comparison.
- Strong Stability & Durability: Integral sealed and dry cavity, real-time temperature and humidity monitoring, long service life of light source and core components, adapting to complex working environments with convenient maintenance.
- Digital & Efficient: SuperTect fully digital electronic system, outputting digital signals, real-time collection of spectral data to ensure true and reliable data.
- International Standard Adaptation: Fully follows international general testing logic and technical specifications, no national standard-related expressions, adapting to global multi-region usage scenarios.
Supporting Accessories
Powder tablet press, tablet mold, KBr tablet holder, agate mortar, drying oven, potassium bromide powder, dust sampler, one-hundred-thousandth electronic balance, high-temperature electric furnace, infrared drying oven, α-quartz standard (purity above 99%), etc.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
This instrument requires a controlled environment to maintain optical alignment and prevent moisture damage to the interferometer and beam splitter. The device must be operated on a stable, vibration-free surface within the specified temperature and humidity ranges to ensure measurement accuracy.
- Environmental Stability: The integral sealed cavity with built-in desiccant and real-time temperature/humidity monitoring requires the user to maintain the recommended ambient conditions to prevent moisture condensation on optical components.
- Optical Component Protection: The potassium bromide beam splitter, despite its moisture-proof coating, is susceptible to degradation from humidity, so the desiccant must be regularly checked and regenerated to preserve spectral performance.
- Interferometer Alignment: The DSP-controlled electromagnetic drive continuously adjusts the interferometer, but the instrument must be protected from mechanical shock or vibration that could misalign the optical path.
This procedure outlines the safe and correct steps for preparing and running a free silica measurement. Following these steps ensures accurate spectral data collection and prevents damage to the instrument.
Required Equipment: FTIR spectrometer with ATR or transmission accessory, Sample preparation tools (e.g., agate mortar, tablet press), Drying oven for sample preparation, Data acquisition software (included)
- Prepare the sample
Prepare the dust sample by drying it in an oven and then grinding it with an agate mortar to ensure a homogeneous fine powder. - Create a KBr pellet
Mix the dried sample with potassium bromide powder and press the mixture into a transparent pellet using a tablet press and mold. - Initialize the instrument
Turn on the FTIR spectrometer and allow the light source and detector to warm up for at least 30 minutes to achieve thermal stability. - Collect a background spectrum
Place an empty sample holder in the chamber and collect a background spectrum to account for atmospheric moisture and instrument response. - Measure the sample
Insert the KBr pellet into the sample chamber and collect the sample spectrum, ensuring the pellet is positioned correctly in the beam path. - Analyze the data
Use the included software to process the spectrum, identify the free silica peaks, and generate a report with the quantitative results.
How does the non-orthogonal interferometer design affect measurement accuracy for free silica in respirable dust?
The improved Michelson interferometer uses a non-orthogonal design with DSP-controlled electromagnetic drive and continuous dynamic adjustment, ensuring stable baseline and high resolution (better than 1.0 cm⁻¹). The signal-to-noise ratio exceeds 30,000:1 (P-P at 4 cm⁻¹ resolution, 1-minute test), enabling precise detection of α-quartz even at low concentrations typical in workplace dust samples.
Can the Atomfair Free Silica Tester handle samples with high moisture content or corrosive environments?
Yes, the cavity is an integral sealed structure with a 304 stainless steel desiccant box and real-time humidity monitoring with digital display and alarm. The beam splitter has a moisture-proof coating, and optional materials (KRS-5, ZnSe, CaF₂) are available. Additionally, 3D gold-plated mirrors and anti-fog coatings protect optics from moisture and corrosion, making it suitable for challenging field conditions.
What are the required supporting accessories and infrastructure for operating the Free Silica Tester?
The system requires a powder tablet press, tablet mold, KBr tablet holder, agate mortar, drying oven, potassium bromide powder, dust sampler, one-hundred-thousandth electronic balance, high-temperature electric furnace, infrared drying oven, and α-quartz standard (purity >99%). It operates on 100-240V, 50/60Hz and connects via USB 2.0 (compatible with 3.0) to Windows XP/7/8/10. The included software has about 1,800 standard spectra libraries for identification, expandable to 220,000 professional libraries.
The Atomfair Disease Control Free Silica Tester is a Fourier-transform infrared (FTIR) spectrometer configured for quantitative determination of α-quartz in respirable dust, featuring a sealed, desiccant-protected optical cavity and a DSP-controlled interferometer for stable operation in demanding occupational health settings.
Positive
- Sealed interferometer with moisture control: The integral sealed cavity with built-in reusable desiccant in a 304 stainless steel box, combined with real-time temperature and humidity monitoring and an alarm, protects the KBr beam splitter and optics from moisture degradation, extending component life in humid or dusty lab environments.
- High-sensitivity DLATGS detector with digital electronics: The imported high-sensitivity DLATGS detector paired with a 24-bit, 500 kHz A/D converter and SuperTect fully digital electronic system delivers a signal-to-noise ratio better than 30000:1 (P-P, 4 cm⁻¹, 1-minute test), enabling reliable detection of trace α-quartz in respirable dust samples.
Trade-offs
- Moisture-sensitive optics require dry environment: The standard potassium bromide beam splitter, despite its moisture-proof coating, is inherently hygroscopic; the instrument relies on the sealed cavity and desiccant system to maintain low humidity, and users must monitor the humidity alarm and regenerate or replace desiccant regularly to prevent optical degradation.
- Sample preparation requires multiple ancillary instruments: Accurate free silica measurement by infrared spectrophotometry requires KBr pellet preparation using the listed accessories (tablet press, agate mortar, drying oven, high-temperature electric furnace, and an analytical balance with 0.01 mg readability), adding procedural complexity and increasing the risk of user-induced error in sample preparation.
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).
