Drick DRK641 Benchtop Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Drick DRK641 is a precision-engineered benchtop environmental test chamber designed for reliable, repeatable simulation of temperature and humidity conditions in laboratory, quality assurance, and R&D environments. Built upon decades of thermal chamber design expertise, the DRK641 employs a robust single-stage refrigeration architecture with a Tecumseh (France) hermetic compressor and environmentally compliant R-404A refrigerant — enabling stable operation across wide climatic ranges from −70 °C to +150 °C and 20–98% RH. Its control philosophy centers on metrological integrity: temperature uniformity ≤2 °C and fluctuation ≤±0.5 °C (at 25 °C, 50% RH), coupled with humidity stability of ±3–4% RH, meet critical requirements for accelerated aging, material stability testing, and preconditioning per IEC 60068-2, MIL-STD-810, and GB/T 2423 series standards. The chamber’s fully welded SUS304 interior, high-density fiberglass insulation, and forced-air circulation via corrosion-resistant stainless steel fan ensure minimal thermal gradients and long-term structural resilience under cyclic stress.

Key Features

• Programmable SH-1800 controller (Shanghai Songhua) supporting up to 30 independent test programs, each configurable with 100 time-temperature-humidity segments — ideal for complex profiles such as thermal shock ramping or humidity cycling per ISO 16750-4.
• Benchtop form factor with optional casters for lab mobility; modular footprint allows integration into controlled-environment laboratories without dedicated floor space.
• Dual-layer observation window with conductive heating film prevents condensation during low-temperature/high-humidity operation — maintaining unobstructed visual monitoring at all setpoints.
• Comprehensive safety architecture: dual redundant over-temperature cutouts, compressor high/low pressure switches, leakage current protection, thermal fuses, and programmable alarm thresholds with audible/visual alerts.
• Standard 50 mm cable port with silicone gasket; one adjustable stainless steel shelf included; additional shelves and custom mounting fixtures available upon request.
• Energy-efficient design: optimized refrigerant charge, low-power 316 stainless steel heating elements, and intelligent defrost logic minimize operational cost over extended test durations.

Sample Compatibility & Compliance

The DRK641 is engineered for non-hazardous, non-biological, and non-corrosive sample conditioning. It is explicitly unsuitable for flammable, explosive, volatile organic, corrosive, or biologically active materials — consistent with IEC 61000-4-2 ESD immunity guidelines and UL 61010-1 safety requirements for electrical equipment used in laboratory settings. All units comply with national Chinese standards GB/T 2423.1 (cold), GB/T 2423.2 (dry heat), GB/T 2423.3 (damp heat, steady state), and GB/T 2423.4 (damp heat, cyclic). Optional factory calibration certificates traceable to CNAS-accredited reference standards are available. The chamber supports GLP-compliant workflows through configurable data logging intervals, user-access controls, and audit-ready event logs — facilitating alignment with FDA 21 CFR Part 11 when integrated with validated third-party data acquisition systems.

Software & Data Management

The SH-1800 controller features an intuitive 7-inch TFT LCD interface with real-time trend graphs, historical data storage (≥10,000 records), and USB export capability for CSV-formatted temperature/humidity/time stamps. While the base unit does not include Ethernet or cloud connectivity, it supports RS-485 Modbus RTU communication for integration into centralized lab management platforms (e.g., LabVantage, Thermo Fisher SampleManager). Optional PC-based software enables remote monitoring, automated report generation (PDF/Excel), and deviation alerting via email/SMS — fully configurable to match internal QA documentation protocols. All logged data retains full metadata: operator ID, program name, start/stop timestamps, and environmental deviations exceeding user-defined thresholds.

Applications

• Electronics reliability testing: PCB moisture sensitivity level (MSL) preconditioning per J-STD-020, solder paste storage validation, and component burn-in screening.
• Pharmaceutical packaging stability: accelerated aging of blister packs, HDPE bottles, and aluminum foil laminates under ICH Q1A(R3) recommended conditions.
• Polymer and composite material characterization: dimensional stability assessment, hygroscopic expansion measurement, and thermal aging per ASTM D618 and ISO 291.
• Automotive component validation: climate cycling of sensors, connectors, and infotainment housings per ISO 16750-4 and GMW 3172.
• Academic research: controlled-environment studies on cellulose degradation, paper archival stability, and textile moisture regain kinetics.

FAQ

What is the standard temperature and humidity range for the DRK641?
The default operating range is −70 °C to +150 °C and 20–98% RH. Custom low-temperature configurations down to −70 °C and extended humidity ranges (e.g., 10–98% RH) are available upon engineering review.
Can the DRK641 be integrated into a LIMS or MES system?
Yes — via RS-485 Modbus RTU output. Full integration requires configuration of register mapping and protocol alignment with your existing infrastructure; technical support documentation and Modbus register tables are provided with shipment.
Is third-party calibration included with purchase?
Factory calibration at 25 °C/50% RH is performed prior to shipment. NIST-traceable calibration certificates (CNAS-accredited) and on-site verification services are available as optional add-ons.
What power supply options are supported?
Standard models operate on single-phase 220 V AC (50 Hz); three-phase 380 V AC variants are offered for larger capacities (≥800 L) and ultra-low-temperature configurations.
How is condensation managed during low-temperature, high-humidity operation?
The double-glazed observation window incorporates a transparent conductive heating film powered independently from the main chamber circuit — ensuring continuous anti-fog performance without affecting chamber stability.