Generic Brand Temperature and Humidity Controlled Environmental Test Chamber
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,600 (approx.) |
| Operating Ambient | 25°C ± 6°C, Unloaded |
| Cooling Water Requirement | 10–28°C, 0.1–0.3 MPa |
| Compliance | GB/T 2423.1, GB/T 2423.2, IEC 60068-2-1, GJB 1032, MIL-STD-2164A |
Overview
The Generic Brand Temperature and Humidity Controlled Environmental Test Chamber is an engineered environmental simulation system designed to replicate precise, stable, and repeatable temperature and humidity conditions for reliability testing of electronic components, automotive parts, aerospace materials, and industrial products. It operates on the principle of balanced heating, humidification, and refrigeration—utilizing a dual-loop P.I.D.-controlled Balance Temperature & Humidity Control (BTHC) architecture. This ensures dynamic equilibrium between thermal/humidification input and chamber heat/moisture loss, enabling long-duration stability under load. The chamber integrates a full-capillary refrigeration circuit with automatic capacity modulation—eliminating reliance on mechanical expansion valves—and delivers smoother, more uniform temperature ramping and humidity recovery than conventional systems. Its design meets fundamental requirements for accelerated stress screening (ESS), environmental stress screening (ESS), and qualification-level testing per military and industrial standards.
Key Features
- Robust safety architecture including dry-run protection for humidifiers, independent overtemperature cutoffs, low-water level detection, compressor overload/overheat/overcurrent protection, high-pressure refrigerant cut-off switch, molded-case circuit breaker, and earth-leakage circuit interrupter (ELCI)
- Full-radius ergonomic enclosure with flush-mount, non-reactive door handles and high-gloss, corrosion-resistant stainless-steel interior surfaces
- Intuitive 7-inch capacitive touch HMI controller supporting multi-segment programmable profiles, real-time trend logging, and dual-setpoint operation for combined or independent temperature/humidity control
- BTHC system employing SSR-driven proportional-integral-derivative (P.I.D.) regulation to match heating/humidification output precisely to thermal and moisture losses—ensuring ±0.5°C temperature stability and ±2% RH uniformity (at 25°C/60% RH, unloaded)
- Optimized air circulation with backward-curved centrifugal blower and laminar-flow ducting to minimize thermal gradients and ensure spatial uniformity across working volume
Sample Compatibility & Compliance
This chamber accommodates standard test specimens up to 500 mm × 500 mm × 500 mm (W×D×H); custom internal dimensions are available upon request. It supports both static and dynamic load configurations—though thermal response time and humidity recovery rate vary with specimen mass, surface emissivity, porosity, and thermal mass distribution. All performance specifications—including nominal temperature range (−40°C to +150°C), humidity range (20–98% RH), and average ramp rates—are validated under ISO/IEC 17025-aligned procedures at 25°C ± 6°C ambient, zero-load conditions. The system complies with GB/T 2423.1 (cold), GB/T 2423.2 (dry heat), IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), GJB 1032-90 (environmental stress screening), MIL-STD-2164A (electronic equipment ESS), and supports audit-ready documentation for GLP and GMP-regulated environments.
Software & Data Management
The embedded controller provides local data storage for ≥10,000 hours of timestamped temperature/humidity readings at user-selectable intervals (1 s to 60 min). Optional Ethernet or RS-485 interfaces enable integration with LabVIEW, MATLAB, or enterprise MES/QMS platforms via Modbus RTU/TCP. Full audit trail functionality—including operator login history, parameter change logs, and alarm event timestamps—is compliant with FDA 21 CFR Part 11 requirements when paired with optional user authentication and electronic signature modules. Export formats include CSV and PDF reports with embedded calibration metadata.
Applications
This chamber is routinely deployed in: accelerated life testing of PCB assemblies; thermal cycling validation of battery modules; humidity soak testing of optical sensors and MEMS devices; preconditioning of polymer composites prior to mechanical testing; shelf-life evaluation of pharmaceutical packaging; and environmental qualification of avionics enclosures per DO-160 Section 4 and 5. Its BTHC stability makes it suitable for extended dwell tests requiring <±0.3°C drift over 72-hour periods—critical for evaluating long-term material creep, condensation resistance, or hygroscopic swelling behavior.
FAQ
What is the typical cooling water requirement for optimal performance?
Cooling water must be maintained between 10°C and 28°C, with inlet pressure regulated at 0.1–0.3 MPa. Deviations outside this range may impair condenser efficiency and extend cooldown times.
How does specimen load affect temperature ramp rates?
Ramp rates are specified as air-average values—not product-core rates—and decrease proportionally with thermal mass, surface area, and insulation properties of the test article. Load-dependent derating curves are provided in the technical manual.
Can the chamber be customized for non-standard internal dimensions?
Yes—structural modifications to chamber volume, door configuration, and port layout are supported under OEM engineering review, subject to thermal uniformity verification.
Is remote monitoring and control supported out of the box?
Standard models include RS-485 Modbus support; Ethernet connectivity and cloud-based telemetry require optional communication module installation and firmware update.
Does the system include factory calibration documentation?
Each unit ships with a NIST-traceable calibration certificate covering temperature (−40°C to +150°C) and humidity (20–98% RH) sensors, valid for 12 months from shipment date.
