High Temperature Aging Test Chamber – OK-T Series (RT to 300°C, PID-Controlled, Stainless Steel Interior)

Overview

The OK-T Series High Temperature Aging Test Chamber is a precision-engineered environmental test system designed for accelerated thermal aging evaluation of electronic components, polymers, adhesives, coatings, and other industrial materials under controlled elevated temperature conditions. Operating on the principle of forced-air convection with optimized airflow distribution, the chamber maintains stable, uniform thermal environments across its working volume—critical for reproducible degradation studies, reliability screening, and qualification testing in accordance with internationally recognized standards. Its architecture supports both continuous operation at steady-state temperatures and step-change thermal profiles, enabling compliance-driven validation per GB/T 2423.2 (equivalent to IEC 60068-2-2 and ASTM D3045). The unit is not intended for flammable or hazardous substance testing; it functions strictly as a non-ventilated, dry-heat exposure apparatus.

Key Features

• Microprocessor-based PID temperature controller with auto-tuning capability and SCR (Silicon Controlled Rectifier) power regulation—ensuring rapid thermal response and minimal overshoot during setpoint transitions.
• Dual-layer thermal insulation combined with high-efficiency far-infrared nickel-chromium heating elements (2 kW rated output), delivering consistent energy delivery and extended heater service life.
• Optimized air circulation design featuring tangential blower placement and baffle-guided airflow—achieving ≤ ±1.5°C temperature uniformity across the entire working chamber, verified per ISO 17025-compliant calibration protocols.
• Multi-level safety architecture including over-temperature cut-off, real-time fault diagnostics, phase-loss protection, and grounded chassis isolation—fully compliant with IEC 61000-6-2/6-4 EMC requirements.
• Corrosion-resistant interior constructed from seamless SUS#304 stainless steel; exterior finished with electrostatic powder coating on cold-rolled steel—designed for long-term stability in laboratory and production QA environments.
• Modular configuration: Standard models OK-T-72 (72 L capacity) and OK-T-150 (150 L capacity) support custom internal dimensions and temperature range extensions up to 500°C upon request.

Sample Compatibility & Compliance

This chamber accommodates a broad range of non-volatile solid specimens—including PCB assemblies, encapsulated semiconductors, elastomeric seals, molded plastic housings, and thin-film substrates—without requiring specialized fixtures. Sample loading is facilitated by two adjustable SUS#304 tray levels, each rated for ≤15 kg load capacity. The system meets the thermal performance and instrumentation traceability requirements of GB/T 2423.2 for Test Bb (non-heating, dry heat), and is routinely deployed in GLP-regulated labs conducting material stability assessments under Chinese National Standards. While not certified to UL or CE for standalone safety marking, it conforms to the electrical safety principles outlined in IEC 61010-1 when installed per manufacturer-specified grounding and ventilation guidelines. Documentation packages include factory calibration certificates (NIST-traceable reference sensor), test reports, and compliance statements aligned with ISO/IEC 17025 quality management systems.

Software & Data Management

The OK-T chamber operates via an integrated microcontroller interface with front-panel membrane keys and LED display. Real-time temperature logging is supported through optional RS-485 Modbus RTU output (standard on OK-T-150), enabling integration into centralized lab data acquisition networks. When paired with third-party SCADA or LIMS platforms, users can configure automated data export intervals, alarm-triggered email notifications, and audit-trail-enabled event logs—including start/stop timestamps, setpoint changes, and fault codes. All controller firmware adheres to deterministic timing constraints, ensuring synchronization accuracy better than ±100 ms across 24-hour continuous runs. For regulated environments, optional 21 CFR Part 11-compliant software modules provide electronic signature capture, role-based access control, and immutable record retention—fully compatible with FDA-submission workflows.

Applications

• Accelerated life testing of automotive electronics exposed to under-hood thermal cycling.
• Evaluation of thermal oxidation resistance in engineering thermoplastics (e.g., PEEK, PSU, PEI) per ASTM D5510.
• Stability assessment of conformal coatings and solder mask materials prior to reflow soldering qualification.
• Pre-conditioning of sensors and MEMS devices before functional verification at operational temperatures.
• Quality conformance testing of industrial gaskets and sealing compounds per ISO 188 (hot air aging).
• Process validation of post-cure thermal treatments in composite manufacturing.

FAQ

What is the maximum allowable ambient temperature for safe operation?
The chamber must be installed in an environment where ambient temperature remains between 5°C and 35°C, with relative humidity ≤85% RH non-condensing and adequate free-air clearance (≥60 cm on all sides) for heat dissipation.

Can this chamber be used for temperature cycling tests?
No—the OK-T Series is configured exclusively for static high-temperature exposure. For thermal cycling applications, refer to our OK-TC Series dual-zone temperature shock chambers.

Is calibration documentation provided with shipment?
Yes—a factory calibration certificate referencing NIST-traceable standards is included, covering temperature uniformity and control accuracy at three points (low/mid/high) within the specified operating range.

What maintenance is required to sustain performance over time?
Quarterly inspection of air filter integrity, biannual verification of door gasket compression force, and annual recalibration of the reference PT100 sensor using accredited metrology services are recommended per ISO/IEC 17025 maintenance schedules.