LabCompanion EK Series High-Low Temperature Alternating Environmental Test Chamber

Overview

The LabCompanion EK Series High-Low Temperature Alternating Environmental Test Chamber is an engineered solution for accelerated environmental stress testing under precisely controlled temperature and humidity profiles. Designed in accordance with IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat, cyclic), and ISO 16750-4 (road vehicles — environmental conditions), this chamber supports rigorous qualification and reliability validation of electronic components, PCB assemblies, automotive ECUs, aerospace avionics, and packaging materials. Its core architecture employs a dual-chamber air circulation system with independent refrigeration and humidification paths, enabling stable thermal transitions between –70 °C and +180 °C at ramp rates up to 10 °C/min (subject to load and volume), and relative humidity control from 10% RH to 98% RH (at 20–85 °C). The chamber operates on a forced-air convection principle with axial fans and optimized baffle design to ensure uniformity of ±0.5 °C (temp) and ±2.0% RH (humidity) across the working volume—verified per ASTM E2709 and IEC 60068-3-5.

Key Features

• Robust stainless steel interior (SUS304) with high-cycle thermal fatigue resistance and corrosion immunity—ensuring long-term dimensional stability and cleanroom-compatible surface integrity.
• Triple-layer vacuum-coated observation window with integrated energy-efficient fluorescent lighting and anti-frost electric heating—eliminates condensation without mechanical wipers and maintains optical clarity during rapid thermal transients.
• Physically isolated humidification circuitry: water piping routed separately from power distribution, controller boards, and sensor wiring—minimizing risk of electrical short-circuiting due to condensate or leakage.
• High-efficiency refrigeration system featuring hermetically sealed compressors (European OEM-sourced), eco-friendly R404A/R134a blended refrigerant (ODP = 0, GWP compliant per EU F-Gas Regulation), and multi-stage expansion control for precise sub-zero stabilization.
• Intuitive 7-inch LCD touchscreen controller with real-time graphing, multi-segment programmable profiles (up to 99 cycles, 999 steps), USB data export, and password-protected parameter locking for GLP/GMP traceability.
• Structural insulation using high-density polyurethane foam (≥35 kg/m³, closed-cell >95%) with seamless cavity filling—achieving thermal conductivity ≤0.022 W/(m·K) and minimizing standby energy loss.

Sample Compatibility & Compliance

The EK Series accommodates standard test specimens up to 1000 mm × 1000 mm × 1000 mm (custom volumes available). It supports mounting fixtures for DUTs with active power input (via optional feedthrough ports rated up to 300 VAC/10 A), thermocouple access (Type K/T/J), and inert gas purging (N₂ or dry air). All models are CE-marked and conform to EN 61000-6-2 (immunity) and EN 61000-6-4 (emissions). Optional configurations include ISO 17025-compliant calibration certificates (traceable to NIM), integrated data loggers meeting FDA 21 CFR Part 11 audit trail requirements, and humidity sensor validation per ISO 17034.

Software & Data Management

The embedded controller firmware supports CSV export of time-stamped temperature/humidity/pressure logs, with timestamp resolution of 1 s and onboard storage ≥30 days of continuous data. Optional PC-based LabCompanion ChamberLink™ software enables remote monitoring via Ethernet/Wi-Fi, automated report generation (PDF/Excel), alarm escalation (email/SMS), and integration with LIMS or MES platforms through Modbus TCP or OPC UA protocols. Audit trails record all user actions—including setpoint changes, profile uploads, door openings, and calibration events—with immutable timestamps and operator IDs.

Applications

• Temperature cycling and thermal shock validation per JEDEC JESD22-A104 and MIL-STD-883 Method 1010.
• Humidity bias testing of microelectromechanical systems (MEMS) and humidity-sensitive IC packages.
• Accelerated life testing (ALT) of conformal coatings, adhesives, and encapsulants under combined thermal-hygric stress.
• Pre-conditioning of lithium-ion battery cells prior to safety testing (UN 38.3 T1–T5).
• Environmental screening of medical device PCBs per ISO 14971 and IEC 60601-1-11.
• Material compatibility studies for automotive interior trim under SAE J2412 cyclic aging protocols.

FAQ

What is the standard temperature and humidity range for the EK Series?
Standard operation spans –70 °C to +180 °C and 10–98% RH (within 20–85 °C). Extended low-temp variants down to –80 °C and high-humidity options up to 99.9% RH are available upon request.
Can the chamber be integrated into an existing factory automation system?
Yes—Modbus RTU/TCP and OPC UA interfaces are supported; custom protocol mapping (e.g., Siemens S7, Rockwell CIP) can be implemented with engineering support.
Is third-party calibration and IQ/OQ documentation provided?
Factory calibration certificates (NIST-traceable sensors) are standard; full IQ/OQ/PQ validation packages—including protocol development and execution by certified engineers—are offered as a service.
How is condensation managed on internal surfaces during rapid cooling?
The chamber uses a combination of dew-point-controlled defrost cycles, heated observation windows, and insulated chamber walls with vapor barrier lamination to suppress interstitial condensation.
What safety certifications does the EK Series hold?
CE, RoHS, and UL/cULus recognition pending (model-specific); electrical safety complies with IEC 61010-1; fire resistance meets UL 94 V-0 for internal polymer components.