LabCompanion PR225 High-Low Temperature Environmental Test Chamber
| Brand | LabCompanion |
|---|---|
| Origin | Guangdong, China |
| Manufacturer | LabCompanion (Guangdong Hongzhan Technology Co., Ltd.) |
| Model | PR225 |
| Temperature Range | -20 °C to +150 °C |
| Cooling Method | Compressor-based refrigeration |
| Explosion-Proof | Standard (non-explosion-proof) |
| Temperature Fluctuation | ±0.5 °C |
| Temperature Uniformity | ±2.0 °C |
| Temperature Deviation | ±2.0 °C |
| Heating Rate (20 °C → +150 °C, non-linear, no-load) | ~3 °C/min |
| Cooling Rate (20 °C → -70 °C, non-linear, no-load) | ~1.2 °C/min |
| Internal Chamber Dimensions (W×H×D) | 600 × 750 × 500 mm |
| Internal Volume | 225 L |
Overview
The LabCompanion PR225 High-Low Temperature Environmental Test Chamber is an engineered thermal stress testing system designed for precise, repeatable simulation of extreme ambient temperature conditions in laboratory and industrial quality assurance environments. Based on forced-air convection and dual-stage compressor refrigeration architecture, the chamber delivers stable thermal profiles across its operational range of –20 °C to +150 °C—enabling accelerated life testing, material stability evaluation, and component validation per international environmental stress screening (ESS) protocols. Its robust stainless-steel interior, insulated double-wall construction with high-efficiency polyurethane foam, and PID-controlled heating/cooling loops ensure minimal thermal inertia and high reproducibility between test cycles. The PR225 conforms to core design principles outlined in IEC 60068-2-1 (cold tests), IEC 60068-2-2 (dry heat), and ASTM D3418 (thermal transition analysis of polymers), making it suitable for pre-compliance verification in electronics, automotive, aerospace, and medical device development workflows.
Key Features
- Stable thermal control with ±0.5 °C temperature fluctuation and ±2.0 °C uniformity across the full 225 L working volume
- Optimized air circulation system featuring centrifugal blower and adjustable baffle plates to minimize stratification and improve thermal homogeneity
- Dual-stage compressor refrigeration unit enabling reliable operation down to –20 °C without liquid nitrogen or cascade systems
- Intuitive 7-inch color touchscreen HMI with real-time graphing, multi-segment programmable profiles (up to 99 steps), and USB data export capability
- 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 monitoring networks (e.g., LabVantage, Siemens Desigo)
Sample Compatibility & Compliance
The PR225 accommodates a wide range of test specimens—including PCB assemblies, molded plastic housings, lithium-ion battery modules, optical sensors, and sealed mechanical enclosures—within its 600 × 750 × 500 mm stainless-steel chamber. Shelves are adjustable and load-rated up to 30 kg per tier. All internal surfaces meet ISO 14644-1 Class 8 (100,000) cleanroom compatibility standards when operated under controlled ambient conditions. The chamber’s thermal performance has been validated per ISO/IEC 17025-accredited procedures, and documentation supports traceability to NIST-traceable temperature standards. It satisfies functional safety requirements referenced in UL 61010-1 and CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), and is routinely deployed in GLP-compliant laboratories conducting IPC-9701, JEDEC JESD22-A104, and MIL-STD-810H Method 501.7 qualification testing.
Software & Data Management
The embedded controller firmware supports full audit trail functionality—including user login history, parameter change logs, and cycle start/stop timestamps—aligned with FDA 21 CFR Part 11 electronic record requirements when paired with optional networked PC software (LabCompanion TC-Suite v4.2). Raw temperature data is recorded at 1-second intervals and exportable in CSV or Excel format. Optional Ethernet/WiFi connectivity enables remote monitoring via SNMP or HTTP API endpoints, facilitating integration with enterprise MES platforms such as Siemens Opcenter or Rockwell FactoryTalk. Calibration certificates include as-found/as-left data and uncertainty budgets calculated per GUM (JCGM 100:2008).
Applications
- Thermal cycling validation of automotive ECUs per ISO 16750-4
- Storage stability assessment of pharmaceutical packaging materials per ICH Q1A(R2)
- Pre-solder reflow conditioning of surface-mount components prior to assembly
- Long-term aging studies of elastomeric seals and gasket compounds
- Environmental stress screening (ESS) of avionics hardware prior to HALT/HASS
- Qualification testing of consumer electronics per GB/T 2423.1 and GB/T 2423.2
FAQ
What is the maximum payload weight the PR225 can accommodate without compromising thermal uniformity?
The chamber maintains specified uniformity (±2.0 °C) with up to 25 kg of thermally inert mass distributed evenly across two standard shelves.
Does the PR225 support ramp-soak-ramp (RSR) profile programming?
Yes—up to 99 programmable segments per test sequence, including linear and non-linear ramps, dwell periods, and loop functions.
Is external humidity control available for this model?
The PR225 is a dry-temperature-only variant; for combined temperature/humidity testing, refer to the LabCompanion PL225 or PS225 series.
Can the unit be calibrated in-house using standard PT100 reference probes?
Yes—the controller accepts external sensor inputs for field verification, and calibration procedures are documented in the included ISO/IEC 17025-aligned technical manual.
What maintenance intervals are recommended for the refrigeration system?
Compressor oil and refrigerant levels should be verified annually; filter-driers require replacement every 24 months under continuous operation.
