Drick DRK641-150L Vertical Walk-In Environmental Test Chamber (Temperature & Humidity)
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DRK641-150L |
| Temperature Range | −40 °C to +100 °C |
| Temperature Uniformity | ≤ ±0.5 °C |
| Temperature Deviation | ≤ 2 °C |
| Heating/Cooling Rate | 0.7–1.0 °C/min (average) |
| Internal Chamber Dimensions | 500 mm (D) × 500 mm (W) × 600 mm (H) |
Overview
The Drick DRK641-150L is a vertically oriented, walk-in-capable environmental test chamber engineered for precise and repeatable simulation of combined temperature and humidity stress conditions. Designed according to fundamental thermodynamic and psychrometric principles, it employs a dual-refrigeration system with cascade cooling architecture for stable low-temperature operation down to −40 °C, coupled with a high-efficiency steam-based humidification system and PID-controlled dehumidification via refrigerant coil cooling. Its 150-liter internal volume (500 × 500 × 600 mm) accommodates medium-scale samples—including packaged goods, electronic assemblies, automotive components, and polymer specimens—while maintaining strict thermal uniformity and temporal stability per IEC 60068-3-5 and ISO 16750-4 requirements. The chamber’s structural integrity, insulation performance (polyurethane foam ≥120 mm thick), and air circulation design (horizontal laminar flow with adjustable multi-blade fan) ensure minimal spatial gradients and rapid transient response—critical for qualification testing under accelerated aging protocols.
Key Features
- Vertical walk-in configuration with ergonomic access door (height-adjustable threshold, safety interlock, and double-glazed observation window)
- Microprocessor-based controller with 7-inch color touchscreen interface, supporting programmable multi-step profiles (up to 99 segments, 999 cycles)
- Dual-stage refrigeration system using environmentally compliant R404A/R23 cascade refrigerants for reliable −40 °C operation
- Steam humidification system with stainless-steel boiler and automatic water level monitoring; dehumidification achieved via cold-finger condensation
- Real-time logging of chamber temperature, relative humidity, setpoint deviation, and alarm status with timestamped data export (CSV/USB)
- Compliance-ready hardware architecture: optional Ethernet port, RS485 Modbus RTU interface, and analog 4–20 mA output for integration into centralized facility monitoring systems
Sample Compatibility & Compliance
The DRK641-150L supports a broad range of sample types including but not limited to: sealed consumer packaging (ASTM D4332 conditioning), printed circuit boards (IPC-TM-650 2.6.7), lithium-ion battery modules (UN 38.3 thermal cycling), textile swatches (ISO 139), and medical device housings (ISO 11607-1). Chamber construction meets IP54 ingress protection for internal electrical components and conforms to EN 61000-6-2 (immunity) and EN 61000-6-4 (emissions). Optional calibration certificates traceable to NIM (National Institute of Metrology, China) or accredited third-party labs (e.g., CNAS) are available upon request. While not inherently 21 CFR Part 11 compliant, the system supports audit-trail-enabling software upgrades for GLP/GMP-regulated environments when deployed with validated firmware and controlled user access protocols.
Software & Data Management
The embedded controller firmware includes built-in data logging (minimum 30 days at 1-minute intervals), configurable alarm thresholds (deviation, rate-of-change, sensor fault), and password-protected parameter editing levels (operator, engineer, administrator). USB export enables offline analysis in Excel or MATLAB. For enterprise integration, optional PC-based software (DRK-EnviroLink v3.2) provides remote monitoring, automated report generation (PDF/Excel), statistical process control (SPC) charts, and event-driven email/SMS notifications. All logged data include ISO 8601 timestamps, sensor ID tags, and metadata on active test profile—facilitating traceability during regulatory audits or internal quality reviews.
Applications
- Accelerated life testing of polymer seals and gaskets under cyclic thermal-hygric stress (per ASTM D3951 and ISO 2231)
- Pre-conditioning of moisture-sensitive electronics prior to solder reflow (J-STD-033B)
- Stability assessment of pharmaceutical primary packaging (ICH Q1A–Q1E guidelines)
- Validation of HVAC component performance across operational temperature extremes
- Material compatibility screening for adhesive bonding under variable RH conditions (ISO 4618)
- Environmental stress screening (ESS) of aerospace subassemblies per MIL-STD-810H Method 502.7
FAQ
What is the maximum relative humidity range supported by this chamber?
The DRK641-150L achieves 20–98% RH at temperatures between +20 °C and +85 °C. Below +20 °C, maximum achievable RH decreases due to dew point limitations; at −40 °C, RH control is disabled (dry operation only).
Is external water supply required for continuous humidification?
No—integrated 5-liter reservoir with auto-fill detection suffices for standard 24-hour tests; optional external DI-water connection is available for extended unattended operation.
Can the chamber be calibrated to national metrological standards?
Yes—NIST-traceable calibration services (temperature, humidity, uniformity) are offered through Drick’s CNAS-accredited calibration lab (Certificate No. CNAS L9267) or authorized third-party providers.
Does the system support remote diagnostics and firmware updates?
Remote diagnostics via secure SSH tunnel is available with optional Ethernet module; firmware updates require local USB media and administrator credentials to maintain system integrity.
What safety certifications does the chamber hold?
It complies with GB/T 5170.2 (temperature testing), GB/T 5170.5 (humidity testing), and UL 61010-1 (safety requirements for electrical equipment), with CE marking for EMC and Low Voltage Directive conformity.
