LabCompanion PL-225 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The LabCompanion PL-225 is a vertically oriented, air-cooled environmental test chamber engineered for precise and stable control of temperature and relative humidity across extended operational cycles. Designed in accordance with fundamental principles of thermodynamic equilibrium and psychrometric regulation, the chamber employs dual independent PID-controlled systems—one for refrigeration and heating, and another for humidification and dehumidification—to maintain consistent environmental conditions within its insulated workspace. Its operational envelope spans from −20 °C to +150 °C and 20–98% RH, making it suitable for accelerated aging, thermal cycling, condensation testing, and long-term stability assessment per IEC 60068-2, MIL-STD-810, and GB/T 2423 standards. The chamber’s structural integrity and thermal performance are validated through factory calibration and documented traceability to national metrological standards.

Key Features

• Robust vertical architecture with reinforced steel frame and high-strength SUS304 stainless-steel interior chamber—resistant to corrosion, thermal shock, and repeated mechanical stress.
• High-density polyurethane foam insulation (≥100 mm thickness) with closed-cell structure, minimizing thermal bridging and reducing energy consumption during prolonged operation.
• Air-cooled refrigeration system utilizing environmentally compliant R404A or R134a refrigerant (configurable), integrated with finned-tube evaporator and axial-flow condenser for uniform airflow distribution and rapid thermal response.
• Double-layer insulated observation window with low-emissivity coated glass and anti-fog heater—enabling real-time visual monitoring without compromising chamber integrity.
• High-temperature-resistant silicone rubber door gasket with multi-point compression sealing, achieving leak rates <0.5 m³/h under differential pressure testing per ISO 14644-3 Class 5 protocols.
• Electrostatically applied epoxy-polyester powder coating on exterior surfaces—providing long-term resistance to abrasion, UV exposure, and laboratory-grade chemical splashes.

Sample Compatibility & Compliance

The PL-225 accommodates samples up to 600 mm (W) × 750 mm (H) × 500 mm (D), supporting standard test specimens including printed circuit boards, polymer packaging, automotive components, pharmaceutical primary packaging, and electronic enclosures. It complies with key international test method requirements including ASTM D4332 (conditioning of plastics), ISO 4892-2 (plastics—exposure to laboratory light sources), and IEC 60068-2-30 (damp heat, cyclic). Optional data logging modules support GLP/GMP-compliant audit trails, and optional Ethernet-enabled controllers facilitate integration into centralized lab management systems adhering to FDA 21 CFR Part 11 requirements for electronic records and signatures.

Software & Data Management

Equipped with an embedded 7-inch color touchscreen HMI running LabCompanion’s proprietary T&H Control Suite v3.2, the PL-225 supports programmable multi-step profiles (up to 99 segments), real-time graphing of temperature/humidity trends, and automatic event logging (door openings, power interruptions, alarm triggers). Data export is available via USB 2.0 or RS485 Modbus RTU protocol for integration with LIMS or SCADA platforms. Optional PC-based software (T&H Manager Pro) provides advanced statistical process control (SPC) functions—including Cp/Cpk calculation, deviation mapping, and comparative analysis across multiple test runs—ensuring full traceability and compliance with internal quality management systems.

Applications

• Accelerated shelf-life testing of medical devices and sterile barrier systems under controlled humidity stress.
• Thermal-mechanical reliability screening of solder joints and conformal coatings in electronics manufacturing.
• Validation of packaging material permeability and seal integrity under combined temperature-humidity stress.
• Environmental conditioning of composite materials prior to tensile, flexural, or impact testing per ASTM D638/D790.
• Stability studies for active pharmaceutical ingredients (APIs) and formulated products per ICH Q1A(R2) guidelines.
• Calibration verification of hygrometers, thermistors, and data loggers used in regulated environments.

FAQ

What is the maximum allowable load mass inside the PL-225 chamber without affecting thermal uniformity?

The chamber is rated for a maximum static load of 50 kg distributed evenly on the standard stainless-steel shelf; exceeding this may impede airflow and compromise uniformity beyond ±2 °C.
Can the PL-225 be configured for continuous operation at 150 °C and 20% RH?

Yes—its heating system and dry-air purge capability support sustained operation at the upper temperature limit with low-humidity setpoints, provided ambient intake air meets dew point specifications (<−40 °C).
Is third-party calibration certification available upon delivery?

Yes—NIST-traceable calibration certificates (temperature and humidity sensors) can be supplied optionally, with uncertainty budgets reported per ISO/IEC 17025:2017 Annex A.
Does the chamber meet CE marking requirements for export to the European Economic Area?

The PL-225 conforms to the essential health and safety requirements of the EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU; CE documentation is provided with each unit.
How often should preventive maintenance be performed?

LabCompanion recommends biannual inspection of refrigerant charge, condenser coil cleanliness, door seal integrity, and sensor drift verification—aligned with ISO 13374-1 condition monitoring guidelines.