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ATOMFAIR® Mid-Humidity (20%-60% RH) Dry Cabinets AF-DC540A 540L for cleanroom moisture-sensitive storage

540L Mid-Humidity Dry Storage Cabinet 20%-60% RH ATOMFAIR®

$1,750.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

540L mid-humidity dry cabinet with 20%-60% RH control, Honeywell ±3% RH sensing, LCD display, 600 × 690 × 1485 mm body and 3 shelves. Order now.

SKU: AF-EI-E-DC00-MSTD-540L
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Description

540L Mid-Humidity (20%-60% RH) Dry Cabinets

Dry storage cabinet, mid-humidity control

Product Overview

The Atomfair DC-Series AF-DC540A is a 540L dry cabinet configured for 20%-60% RH relative humidity control, with a standard white cabinet body, outer dimensions of 600 x 690 x 1485 mm, inner dimensions of 555 x 640 x 1315 mm, and 3 adjustable shelves.

This model provides balanced dry storage for materials that need controlled moisture protection without an ultra-dry environment. 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 research laboratories, electronics workshops, incoming-material storage, component staging areas, optical part storage, film and powder cabinets, technical archives and quality-control rooms that need stable humidity management.

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
1. Selected Model & Dimension Parameters
Model Cabinet Body Volume Humidity Grade Humidity Range Outer Size Inner Size Shelf Count
AF-DC540A Standard white powder-coated steel body 540L Mid-Humidity 20%-60% RH 600 x 690 x 1485 mm 555 x 640 x 1315 mm 3
2. Technical Specifications
Parameter Details
Cabinet Body Standard white powder-coated steel body
Humidity Control Range 20%-60% 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®

The cabinet must be installed on a level surface with proper door seal integrity to achieve the specified 20%-60% RH control range. Extended ambient exposure of stored materials should be minimized, and ultra-low humidity applications require process validation or optional nitrogen purge and alarm systems.

  • Installation and Leveling: Confirm the cabinet is placed on a level, stable surface and adjust the leveling feet to ensure proper door alignment and sealing.
  • Door Seal Integrity: Inspect the magnetic gasket and sealing surface regularly for debris or damage to prevent humidity leakage.
  • Power Continuity: Use a stable power supply and verify the LCD display for normal operation after any power interruption.
  • Humidity Grade Matching: Select the appropriate humidity grade model (A, B, C, or D) based on the moisture sensitivity of stored materials to avoid under- or over-drying.
  • Validation for Extreme Conditions: For ultra-low or extreme-low humidity applications, validate the storage process and consider installing an over-humidity alarm or nitrogen purge system.

Follow these steps to properly initialize and operate the dry cabinet for controlled humidity storage. Ensure the unit is stable, powered, and configured before introducing moisture-sensitive materials.

Required Equipment:

  1. Transport Cabinet Upright
    Transport the cabinet upright with reinforced outer protection to prevent structural damage.
  2. Level the Cabinet
    Place the cabinet on a level surface and adjust the leveling feet to ensure stability and proper door seal alignment.
  3. Inspect Door Sealing
    Inspect the door sealing gasket and magnetic closure for any gaps or debris before loading.
  4. Connect Power Supply
    Connect the cabinet to a stable power source and verify the LCD display shows correct temperature and humidity readings.
  5. Set Humidity Set-Point
    Set the desired humidity set-point using the microcomputer control panel; the module automatically dehumidifies to the target range.
  6. Load Moisture-Sensitive Materials
    Load moisture-sensitive materials onto the adjustable shelves, ensuring uniform air circulation and avoiding overloading.
  7. Close and Secure Door
    Confirm the door is fully closed and latched; minimize the duration and frequency of door openings during normal use.

How does the mid-humidity range (20%-60% RH) of the AF-DC540A compare to lower humidity grades for preventing oxidation and solderability loss in electronic components, and what is the impact of the Honeywell sensor's ±3% RH accuracy on maintaining consistent conditions within that range?

The AF-DC540A's mid-humidity range (20%-60% RH) is designed for materials that require controlled moisture protection without ultra-dry conditions, such as preventing oxidation and solderability loss during storage. The Honeywell sensor provides ±3% RH accuracy with 0.3% annual drift, ensuring reliable measurement within this range, but users should validate storage processes for critical applications as the sensor's accuracy may affect set-point consistency at the extremes of the range.

Can the AF-DC540A be configured for ESD-sensitive environments, and what optional accessories are necessary to comply with IEC 61340-5 electrostatic discharge protection standards?

Yes, the AF-DC540A can be configured for ESD-sensitive environments by adding the optional ESD-safe anti-static coating, which is compliant with IEC 61340-5 electrostatic discharge handling requirements. No other accessories are explicitly required for ESD compliance beyond this coating, making it suitable for ESD-controlled production and storage areas.

What infrastructure is required to support the optional nitrogen purge system on the AF-DC540A, and how does it integrate with the cabinet's existing dehumidification control?

The optional nitrogen purge system requires a fast-purge gas valve configuration and an external nitrogen supply to enable accelerated dehumidification and inert-atmosphere management. It integrates with the cabinet's existing microcomputer control, which retains set-point memory after power interruption, but does not alter the standard power or leveling requirements for installation.

The Atomfair AF-DC540A 540L dry cabinet delivers controlled mid-humidity storage (20%-60% RH) using a Honeywell sensor with ±3% RH accuracy and automatic electronic dehumidification that requires no consumable desiccants, making it suitable for moisture-sensitive materials in laboratory and workshop environments.

Positive

  • High-precision Honeywell sensor with low drift: The 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 electronic dehumidification: The automatic electronic dehumidification module eliminates the need for disposable desiccant consumables, reducing ongoing maintenance and operational costs.

Trade-offs

  • Limited to mid-humidity range only: This model is configured for 20%-60% RH and cannot achieve lower humidity levels without upgrading to a different humidity grade model or adding a nitrogen purge system.
  • Large cabinet requires careful handling: With outer dimensions of 600 x 690 x 1485 mm and a 540L volume, the cabinet must be transported upright with reinforced protection and moved using suitable lifting equipment to avoid damage.

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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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