240L 1%-3% RH Dry Storage Cabinet AF-DC240D ATOMFAIR®

Description

240L Extreme-Low-Humidity (1%-3% RH) Dry Cabinets

Dry storage cabinet, extreme-low-humidity control

Product Overview

The Atomfair DC-Series AF-DC240D is a 240L dry cabinet configured for 1%-3% 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 extreme-low-humidity storage for highly moisture-sensitive components and process materials that require the strictest dry-storage conditions in this series. 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 high-sensitivity electronics storage, semiconductor and optoelectronic cleanrooms, advanced research laboratories, precision optical storage, process-material staging areas, and dry-room support where the lowest humidity grade in this cabinet series is required.

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-DC240D	Standard white powder-coated steel body	240L	Extreme-Low-Humidity	1%-3% 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		1%-3% 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 cabinet requires stable, level placement on a solid surface and must remain closed during normal operation to maintain humidity. Transport must be performed upright with reinforced protection, and the storage process should be validated for extreme-low-humidity applications.

Stable Level Placement: Place the cabinet on a level, solid surface and adjust for stability before loading.
Door Sealing Integrity: Confirm that the door sealing gasket and lockable handle are functional to maintain a sealed environment.
Transport Orientation: Transport the cabinet upright with reinforced outer protection to prevent structural damage.
Minimize Door Opening: Keep the cabinet door closed during normal use and minimize extended ambient exposure of stored materials.
Process Validation: For extreme-low-humidity applications, validate the storage process before formal production use and consider nitrogen purge or alarm options when process risk is high.

HowTo

Follow these steps to safely transport, install, and operate the dry cabinet for moisture-sensitive storage. Proper initialization ensures stable humidity control and protects stored materials.

Required Equipment:

Transport the Cabinet
Transport the cabinet upright with reinforced outer protection and suitable lifting equipment.
Place on Level Surface
Place the cabinet on a level, solid surface and adjust for stability.
Inspect Door Seal
Confirm the door sealing gasket and lockable handle are intact and functional.
Connect Power and Stabilize
Connect the cabinet to stable power and allow the dehumidification system to reach the target humidity range.
Load Materials
Load moisture-sensitive materials onto the adjustable shelves, ensuring uniform air circulation.
Maintain Closed Door
Keep the cabinet door closed during normal operation and minimize opening duration.

FAQ

How does the extreme-low-humidity range (1%-3% RH) in the Atomfair AF-DC240D affect electrostatic discharge risk for stored sensitive electronics, and what mitigation options are available?

The extremely dry environment increases static electricity buildup, which can damage ESD-sensitive components. To mitigate this, Atomfair offers an optional ESD-safe anti-static coating compliant with IEC 61340-5 handling requirements, providing electrostatic protection for ESD-controlled production and storage areas. The perforated adjustable shelves and sealed cabinet construction also support stable dry storage, but the ESD coating is recommended for sensitive electronics.

Can the AF-DC240D be integrated into a centralized monitoring system for real-time humidity and temperature logging, and what interface is required?

Yes, the cabinet can be equipped with an optional RS485 PC logging interface that enables real-time data logging, remote monitoring, and traceability of cabinet humidity and temperature status. This interface is available as a configured option and supports integration with facility management systems for continuous environmental tracking.

What are the critical installation and operational requirements for the 240L dry cabinet to maintain its 1%-3% RH performance during daily use?

The cabinet must be transported upright with reinforced outer protection and placed on a level surface. After installation, confirm level placement, door sealing with the magnetic gasket, and ensure shelf loading is within capacity. Keep the cabinet door closed during normal use, minimize extended ambient exposure of stored materials, and maintain stable power. For extreme-low-humidity applications, consider optional nitrogen purge or over-humidity alarm systems to mitigate process risk.

Assessment

The Atomfair 240L extreme-low-humidity dry cabinet (model AF-DC240D) achieves 1%-3% RH control using a Honeywell sensor with ±3% RH accuracy and automatic electronic dehumidification without consumable desiccants. Users must account for upright transportation requirements and process validation needs when deploying at the lowest humidity range.

Positive

Honeywell sensor with low drift: Integrated Honeywell temperature and humidity sensor provides ±3% RH accuracy and 0.3% annual drift, enabling reliable long-term measurement without frequent recalibration.
Maintenance-free dehumidification: Automatic electronic dehumidification module operates without disposable desiccant consumables, reducing ongoing maintenance and consumable replacement costs.

Trade-offs

Upright transport and handling required: Cabinet must be transported with reinforced outer protection, kept upright, and moved with suitable lifting equipment according to its 240L volume to avoid damage to the sealed construction.
Process validation needed for extreme-low humidity: For 1%-3% RH operation, the manufacturer advises validating the storage process before formal production use and considering nitrogen purge or alarm options when process risk is high.

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).