240L Low-Humidity Dry Storage Cabinet 10%-20% RH ATOMFAIR®

Description

240L Low-Humidity (10%-20% RH) Dry Cabinets

Dry storage cabinet, low-humidity control

Product Overview

The Atomfair DC-Series AF-DC240B is a 240L dry cabinet configured for 10%-20% RH relative humidity control, with a standard white cabinet body, outer dimensions of 600 x 400 x 1250 mm, inner dimensions of 555 x 370 x 1080 mm, and 3 adjustable shelves.

This model provides low-humidity storage for moisture-sensitive components that require stronger ambient humidity protection. It is used to prevent moisture absorption, oxidation, micro-structural degradation, optical haze, solderability loss and other humidity-related damage during storage, inspection, production staging or long-term preservation.

Application scenarios include electronics manufacturing lines, SMT component rooms, laboratory sample storage, precision instrument storage, optical workshops, film and powder storage, and industrial quality-control areas requiring lower humidity protection.

The cabinet integrates automatic electronic dehumidification, high-precision Honeywell temperature and humidity sensing, a digital LCD display for humidity, temperature, operating status and fault information, set-point memory after power interruption, tempered-glass viewing doors, reinforced adjustable shelves and sealed cabinet construction for repeatable daily operation.

Specifications

Model	Cabinet Body	Volume	Humidity Grade	Humidity Range	Outer Size	Inner Size	Shelf Count
1. Selected Model & Dimension Parameters
AF-DC240B	Standard white powder-coated steel body	240L	Low-Humidity	10%-20% RH	600 x 400 x 1250 mm	555 x 370 x 1080 mm	3
2. Technical Specifications
Parameter		Details
Cabinet Body		Standard white powder-coated steel body
Humidity Control Range		10%-20% RH
Temperature Display Range		0-99°C
Humidity Display Range		0%-99% RH
Sensor		Honeywell temperature and humidity sensor, ±3% RH accuracy and 0.3% annual drift
Display		High-definition LCD display for humidity, temperature, operation status and fault codes
Dehumidification System		Automatic electronic dehumidification module with no disposable desiccant consumables
Control Mode		Microcomputer automatic control with set-point memory after power interruption
Structure		1.2 mm galvanized steel cabinet, 5 mm tempered glass viewing door, magnetic sealing gasket and lockable handle

Key Features and Advantages

Selectable humidity grades are split into individual models: A mid-humidity 20%-60% RH, B low-humidity 10%-20% RH, C ultra-low-humidity 1%-10% RH and D extreme-low-humidity 1%-3% RH, allowing the cabinet to match the actual sensitivity of stored materials.
High-precision sensing uses a Honeywell temperature and humidity sensor with ±3% RH accuracy and low annual drift for reliable long-term measurement.
Efficient automatic dehumidification removes moisture rapidly, requires no disposable desiccant consumables and supports continuous operation with minimal maintenance.
Intelligent microcomputer control retains set parameters after power loss and shows real-time humidity, temperature, operating status and fault codes on the LCD display.
Robust sealed construction uses a galvanized steel cabinet body, tempered safety glass, double-frame sealing, magnetic gaskets and a lockable handle for stable dry storage.
Perforated adjustable shelves support uniform air circulation and make it easier to store components, instruments and samples of different sizes.

Optional Accessories

ESD-Safe Anti-Static Coating: Provides electrostatic protection for ESD-controlled production and storage areas, compliant with IEC 61340-5 handling requirements.
Internal LED Illumination: Moisture-resistant interior lighting improves visibility when checking stored parts, labels and shelf positions.
Premium Stainless-Steel Body: High-grade structural body option for cleanrooms, corrosive environments or facilities with stricter hygiene requirements.
Nitrogen Purge System: Fast-purge gas valve configuration supports accelerated dehumidification and inert-atmosphere management.
RS485 PC Logging Interface: Enables real-time data logging, remote monitoring and traceability of cabinet humidity and temperature status.
Over-Humidity Alarm System: Microcomputer alarm function is triggered when the internal humidity exceeds the configured set point.

For tailored configurations or formal technical quotations regarding these options, please contact our engineering team.

APPLICATION SCOPE: Engineered for research laboratories, cleanroom environments, semiconductor assembly lines, SMT component rooms, optical workshops and high-tech industrial quality-control centers managing moisture-sensitive electronic, optical, chemical and archival assets.

HANDLING REQUIREMENT: The cabinet should be transported with reinforced outer protection, kept upright, and moved with suitable lifting or handling equipment according to its volume. After installation, confirm level placement, door sealing, shelf loading and stable power before storing sensitive materials.

IMPORTANT NOTICE: Confirm the exact capacity, humidity grade, cabinet body type and optional accessories before ordering. Keep the cabinet door closed during normal use and minimize extended ambient exposure of sensitive materials. For ultra-low or extreme-low humidity applications, validate the storage process before formal production use and consider nitrogen purge or alarm options when process risk is high.

CONTROLLED DRY STORAGE SOLUTIONS

For volume selection, humidity grade confirmation or optional configuration, contact our engineering sales team.

EMAIL: inquiry@atomfair.com

Supplier: Atomfair

Brand: ATOMFAIR®

Constraints

The dry cabinet requires stable power, level placement, and sealed door for proper humidity control. Transport must be upright, and extended ambient exposure of sensitive materials should be avoided to prevent moisture damage.

Transport Constraint: The cabinet must be transported upright with reinforced outer protection to prevent internal damage.
Installation Constraint: The cabinet must be placed on a level surface and have stable power before storing materials.
Operational Constraint: Keep the cabinet door closed during normal use and minimize extended ambient exposure of stored materials.
Validation Constraint: For ultra-low or extreme-low humidity applications, validate the storage process before formal production use.
Optional Enhancement: Consider nitrogen purge or over-humidity alarm for high-risk processes.

HowTo

Initialize the cabinet by ensuring stable power and level placement, then set the humidity setpoint. Load materials only after the cabinet has reached the target humidity range.

Required Equipment: Dry storage cabinet

Transport
Transport the cabinet upright with reinforced outer protection.
Place
Place the cabinet on a level, stable surface near a power outlet.
Connect Power
Connect the cabinet to a stable power supply and verify the LCD display activates.
Set Humidity
Set the desired humidity setpoint using the microcomputer control panel.
Stabilize
Allow the cabinet to stabilize until the displayed humidity reaches the set range.
Load Materials
Load moisture-sensitive materials onto the adjustable shelves with minimal door open time.
Monitor
Close and lock the door, then monitor the display for normal operation.

FAQ

For applications requiring rapid recovery after door openings, is the standard dehumidification module in the AF-DC240B sufficient to maintain 10%-20% RH, or does the nitrogen purge option become necessary?

The standard automatic electronic dehumidification module is designed for rapid moisture removal and continuous operation with no disposable desiccant consumables, making it sufficient for typical use. However, for applications with frequent door openings or where accelerated recovery is critical, the optional nitrogen purge system provides fast-purge gas valve support to accelerate dehumidification and enable inert-atmosphere management, as stated in the optional accessories.

What types of moisture-sensitive components are appropriate for storage in the 10%-20% RH range of the AF-DC240B, and when should a lower humidity grade model be selected?

The 10%-20% RH range is suitable for components requiring stronger ambient humidity protection, such as those prone to moisture absorption, oxidation, micro-structural degradation, optical haze, or solderability loss. For materials requiring ultra-low humidity (1%-10% RH) or extreme-low humidity (1%-3% RH), such as certain advanced semiconductors or hygroscopic chemicals, the C or D grade models should be selected, as the product description specifies that humidity grades are split into individual models.

What are the critical installation and operational requirements to ensure the AF-DC240B maintains its specified 10%-20% RH performance?

The cabinet must be transported upright with reinforced outer protection, placed on a level surface, and connected to stable power before storing materials. During operation, keep the door closed and minimize extended ambient exposure of sensitive materials, as the sealed construction with magnetic gaskets and lockable handle maintains the internal environment. For ultra-low or extreme-low humidity applications, the source advises validating the storage process and considering nitrogen purge or alarm options when process risk is high.

Assessment

This 240L dry cabinet provides reliable low-humidity storage (10-20% RH) with automatic electronic dehumidification and high-precision Honeywell sensing (±3% RH accuracy), but requires careful handling during transport and installation and is limited to its specified humidity range without optional upgrades such as nitrogen purge.

Positive

High-precision Honeywell sensor: Integrated Honeywell temperature and humidity sensor delivers ±3% RH accuracy with 0.3% annual drift, enabling reliable long-term measurement for moisture-sensitive storage.
Consumable-free dehumidification: Automatic electronic dehumidification module eliminates the need for disposable desiccant consumables, reducing ongoing maintenance and operational costs.

Trade-offs

Humidity range limitation: This model is configured for 10%-20% RH only; achieving ultra-low (<10% RH) or extreme-low (<3% RH) conditions requires optional nitrogen purge or alarm systems, adding cost and infrastructure.
Handling and installation constraints: The cabinet must be transported upright with reinforced protection, placed on a level surface, and have sealed door gaskets confirmed before use; frequent door opening or improper placement compromises humidity stability.

Quality Standards & Performance Verification

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.

Shipping & Returns

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).