Is FTIR Afraid of Moisture? A Moisture-Proof Box Is the Right Choice
March 25, 2026
Fourier Transform Infrared (FTIR) spectrometers are highly sensitive precision instruments, and moisture is one of their most critical threats. Excess humidity can directly damage core optical components, reduce measurement accuracy, and significantly shorten equipment lifespan.
To ensure stable performance, using a dedicated moisture proof cabinet is not optional—it is essential.
Why Moisture Is Dangerous for FTIR Instruments
The electronic moisture-proof cabinet is designed to protect infrared spectrometers and other laboratory equipment that are highly sensitive to humidity. The MRD series moisture-proof cabinet effectively reduces internal humidity, safeguarding critical components such as:
- Interferometer
- Detector
- Beam splitter
Once these components absorb moisture, their surfaces undergo irreversible changes due to their specialized manufacturing processes. In most cases, they cannot be repaired and must be replaced entirely, with replacement costs typically ranging from 30,000 to 80,000 RMB.
Intelligent Moisture Protection Solution
The MRD series moisture-proof cabinet is a dedicated dehumidification device developed for FTIR instruments. It complies with PC/JEDEC J-STD-033B standards, ensuring humidity levels remain below 50% RH.
Key operational advantages include:
- Real-time humidity monitoring
- Automatic dehumidification activation when thresholds are exceeded
- No consumables required
- Low energy consumption
- Proven performance with global installations and exports
Advanced Dehumidification Principle
The MRD series adopts solid-state electrolytic molecular film technology:
- Water molecules are absorbed into a molecular layer film within the system
- Electrolytic micro-heating removes moisture as vapor without generating liquid water
- No drainage or maintenance is required
The system is equipped with intelligent sensors that automatically trigger dehumidification when humidity exceeds preset levels.
Additional benefits include:
- No consumable replacement needed
- Ultra-low power consumption
- Up to 8 years service life for the dehumidification module
Even during power outages, the system provides up to 24 hours of passive moisture protection, with humidity increase controlled within 10%.
Product Features and Structural Advantages
Environmental Control
- Humidity range: 20%–50% RH
- Display range: 0%–100% RH, accuracy ±3%
- Real-time temperature and humidity display via LCD screen
Structural Design
- 5 mm heavy-duty base plate with anti-static and flame-retardant coating
- 1.5 mm rolled steel enclosure for durability
- Internal joints sealed with curing glue for airtight performance
Sealing & Protection
- Imported silicone sealing strips ensure airtight closure
- Hidden wiring and PCB protection design enhance safety
- Anti-moisture and anti-dust enclosure structure
User-Friendly Operation
- Damping hinge design for smooth opening and closing
- Hydraulic support system for safe lid operation
- Optional independent sample compartment access
Intelligent Dehumidification System
- High-grade humidity sensing module
- Fully automatic control via microcomputer system
- Regenerative molecular adsorption technology
Wide Compatibility and Customization
The MRD series has been continuously developed over many years and is compatible with all major FTIR spectrometer brands on the market.
Available models include:
- MRD-100S
- MRD-200S
- MRD-300S
- MRD-300PLUS
With more than 10 sizes and configurations, the system supports:
- Standard FTIR instruments
- Instruments with accessories
- Integrated laboratory setups
Custom solutions are also available based on specific laboratory requirements.
Conclusion
Moisture is one of the most expensive hidden risks in FTIR operation. A single exposure event can lead to irreversible damage and high replacement costs.
The MRD series moisture-proof cabinet provides a reliable, intelligent, and maintenance-free solution to protect your investment, ensuring long-term stability, accuracy, and operational efficiency.
For laboratories seeking dependable protection, a professional moisture proof cabinet is the most effective safeguard for FTIR instruments.
