SOLY High-Low Temperature Alternating Test Chamber
| Brand | SOLY |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | Customizable |
| Pricing | Available Upon Request |
| Internal Volume Range | 350–1000 L |
| Internal Dimensions (W×D×H) | 800 × 550 × 800 mm |
| External Dimensions (W×D×H) | 1100 × 1200 × 1900 mm |
| Temperature Range | −20 °C to +150 °C |
| Temperature Uniformity | ≤ ±2.0 °C |
| Temperature Stability | ≤ ±0.5 °C |
| Heating Rate (Empty Load, Avg.) | ≥3 °C/min |
| Cooling Rate (Empty Load, Avg., Mechanical Refrigeration Only) | ≥2 °C/min |
| Compliance Standards | GB/T 5170.2–2008, GB/T 2423.1–2008 / IEC 60068-2-1:2007, GB/T 2423.2–2006 / IEC 60068-2-2:2007, GJB 150.3–1986, GJB 150.4–1986 |
Overview
The SOLY High-Low Temperature Alternating Test Chamber is an engineered environmental simulation system designed for controlled thermal cycling of non-hazardous industrial components, electronic assemblies, automotive parts, packaging materials, and polymer-based products. It operates on a forced-air convection principle with independent heating and mechanical refrigeration circuits, enabling precise, repeatable transitions between extreme temperature extremes—from −20 °C to +150 °C—within defined stability and uniformity tolerances. The chamber supports programmable alternating profiles (e.g., hold-ramp-hold sequences), making it suitable for accelerated aging, thermal shock pre-screening, and qualification testing per internationally recognized environmental test standards. Its structural architecture prioritizes thermal inertia minimization, sensor redundancy, and long-term operational reliability under continuous duty cycles in QC laboratories and R&D facilities.
Key Features
- Modular stainless-steel inner chamber with seamless welding and electrostatically applied epoxy-coated outer enclosure for corrosion resistance and thermal insulation integrity
- Dual PID-controlled heating and cascade mechanical refrigeration systems with independent compressors, condensers, and expansion valves for stable ramp performance
- High-accuracy PT100 Class A sensors (three-point calibrated) mounted at top, center, and bottom zones to monitor spatial temperature distribution
- Programmable controller with 128-segment cycle capability, real-time trend logging, and USB data export functionality
- Over-temperature, over-pressure, and compressor overload protection circuits compliant with IEC 61000-6-2 EMC immunity requirements
- Standard RS485 interface supporting Modbus RTU protocol for integration into centralized lab automation or MES environments
Sample Compatibility & Compliance
The chamber is explicitly rated for non-hazardous, non-biological, non-corrosive, and non-electromagnetically active samples. It prohibits the testing or storage of flammable, explosive, volatile organic compounds (VOCs), strong oxidizers, acids, alkalis, live biological specimens, or devices emitting RF fields above 10 V/m at 30 MHz–1 GHz. All thermal performance specifications—including temperature deviation (≤±2.0 °C), stability (≤±0.5 °C), and ramp rates—are validated under empty-load conditions per GB/T 5170.2–2008 and aligned with the metrological traceability framework of ISO/IEC 17025 accredited calibration labs. Test reports generated using this chamber meet evidentiary requirements for ISO 9001 internal audits and supplier qualification documentation.
Software & Data Management
The embedded controller firmware supports full-cycle parameter definition (setpoint, dwell time, ramp rate, segment count) and provides timestamped CSV logs with 1-second resolution for all monitored channels. Optional PC-based software (SOLY-EnvLog Pro v3.x) enables remote monitoring via Ethernet, automated report generation in PDF/Excel format, and audit-trail-enabled user access control—fully compatible with GLP/GMP documentation workflows. Data files include operator ID, calibration certificate references, and environmental ambient condition metadata, satisfying FDA 21 CFR Part 11 electronic record retention criteria when deployed with appropriate IT governance controls.
Applications
- Qualification testing of PCBAs and connectors per IPC-9701A thermal cycling requirements
- Thermal endurance evaluation of lithium-ion battery modules under IEC 62133-2 compliance protocols
- Material coefficient of thermal expansion (CTE) screening for aerospace composites
- Accelerated life testing of elastomeric seals and gaskets used in HVAC and automotive applications
- Pre-conditioning of optical components prior to laser damage threshold measurement
- Stability assessment of pharmaceutical primary packaging under ICH Q1A(R2) long-term and accelerated storage conditions
FAQ
What is the maximum allowable sample volume relative to chamber capacity?
For optimal thermal uniformity and airflow dynamics, loaded volume should not exceed 50% of nominal internal volume. For example, in a 700 L chamber, total sample footprint must remain below 350 L.
Can the chamber operate continuously at −20 °C or +150 °C without cycling?
Yes—it supports extended static soak operation at any setpoint within its full range, with stability maintained per GB/T 2423.1 and GB/T 2423.2 requirements.
Is third-party calibration certification available?
Yes—NIST-traceable calibration certificates (per ISO/IEC 17025) are provided upon request, including as-found/as-left data for all critical sensors and controllers.
Does the system support dry air purge or inert gas injection?
Not as standard; however, optional 1/4″ NPT inlet/outlet ports and pressure-relief valve integration can be factory-installed for nitrogen purging configurations.
What maintenance intervals are recommended for sustained accuracy?
Compressor oil and refrigerant filter replacement every 24 months; sensor verification and door gasket inspection every 6 months; full system performance validation annually per GB/T 5170.2.
