English Product Name

Overview

The OK-TH Series Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for precise, repeatable simulation of climatic conditions in laboratory and industrial quality assurance environments. Designed in accordance with fundamental principles of thermodynamic control and psychrometric regulation, the chamber maintains stable setpoints across wide operational ranges by integrating dual-stage refrigeration, PID-controlled heating, and steam-based humidification with precision dew-point monitoring. Its architecture supports both steady-state (constant) and cyclic (alternating) environmental profiles—enabling compliance-driven validation of product reliability under thermal stress, moisture exposure, and combined temperature-humidity load scenarios. The system is widely deployed in electronics qualification, automotive component testing, pharmaceutical stability studies, and aerospace hardware verification where adherence to international environmental test standards is mandatory.

Key Features

• Multi-range temperature capability: Four standard configurations (A–D) accommodate ambient-to-extreme cold applications—from 0 °C up to −70 °C minimum, with upper limit fixed at 150 °C.
• High-fidelity humidity control: Standard 20–98 %RH range, expandable to 5–98 %RH upon request; achieved via stainless-steel steam generator and calibrated capacitive RH sensors.
• Uniformity and stability engineering: Chamber interior features optimized air circulation (horizontal laminar flow), insulated double-wall construction, and real-time feedback loops ensuring ≤±0.5 °C temperature uniformity and ≤±2.5 %RH humidity uniformity per IEC 60068-3-5.
• Intuitive human-machine interface: 7-inch color LCD touch controller supports dual-language operation (English/Chinese), programmable multi-step profiles, and on-screen data logging with timestamped setpoint tracking.
• Robust mechanical design: All wetted surfaces fabricated from electropolished SUS#304 stainless steel; reinforced insulation (≥100 mm polyurethane foam); integrated safety interlocks including over-temperature, over-humidity, and refrigerant pressure cutoffs.

Sample Compatibility & Compliance

The OK-TH chamber accommodates a broad spectrum of sample geometries and material classes—including PCB assemblies, polymer enclosures, battery modules, medical device packaging, and active pharmaceutical ingredients (APIs). Internal dimensions scale from 80 L to 1000 L, with customizable internal layouts (e.g., additional ports, reinforced shelves, or non-standard mounting rails) available upon engineering review. The system meets or exceeds requirements of multiple international test standards: MIL-STD-810G Method 501.6 (High Temperature), Method 502.6 (Low Temperature), Method 507.5 (Humidity), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Cyclic Damp Heat), and GB/T 2423.1–2423.4 series. Optional calibration documentation (NIST-traceable certificates) and IQ/OQ protocol support are provided for GLP/GMP-regulated laboratories.

Software & Data Management

The embedded controller records real-time temperature and humidity values at user-defined intervals (1–600 seconds), storing up to 100 test programs and 10,000 data points internally. USB export enables CSV-formatted output compatible with Excel, MATLAB, or LIMS platforms. For networked environments, optional RS485/Modbus RTU or Ethernet (TCP/IP) interfaces allow integration into centralized monitoring systems. Audit trail functionality—including operator login, parameter modification history, and alarm event logs—supports compliance with FDA 21 CFR Part 11 when paired with validated user access controls and electronic signature modules.

Applications

• Electronics: Thermal cycling of printed circuit boards, solder joint fatigue analysis, and humidity-induced corrosion evaluation per JESD22-A101.
• Automotive: Climate endurance testing of ECUs, connectors, and interior trim materials under ISO 16750-4 environmental stress conditions.
• Pharmaceuticals: Accelerated stability testing of drug products and packaging per ICH Q1A(R2) guidelines; long-term storage condition simulation (25 °C/60 %RH).
• Aerospace: Component qualification per DO-160 Section 4 (Temperature) and Section 5 (Humidity), including rapid transition profile execution.
• Materials Science: Hygrothermal aging of composites, adhesives, and elastomers to assess dimensional stability and mechanical property degradation.

FAQ

Can the chamber be customized for non-standard internal dimensions or special electrical requirements?

Yes—custom cavity geometry, voltage/frequency adaptations (e.g., 208 V/60 Hz), and explosion-proof variants are available subject to engineering feasibility assessment and lead-time extension.

Is third-party calibration certification included with shipment?

Standard delivery includes factory calibration report. NIST-traceable certification with uncertainty budget and on-site verification services may be arranged separately.

What maintenance intervals are recommended for optimal performance?

Compressor oil inspection every 24 months; condenser coil cleaning quarterly; humidity sensor recalibration annually; full system verification every 12–18 months per ISO/IEC 17025 guidance.

Does the controller support remote monitoring via cloud platform?

Native cloud connectivity is not built-in, but Modbus-enabled gateways (e.g., Siemens Desigo CC, Ignition SCADA) can be integrated using standard protocols for enterprise-level telemetry and alarm notification.

How is compliance with GLP or GMP audit requirements addressed?

The system supports role-based user accounts, electronic signatures (via optional module), immutable audit trails, and configurable alarm escalation—meeting core technical requirements for regulated environments under Annex 11 and ALCOA+ data integrity principles.