LabCompanion RZ-80 Benchtop Programmable Temperature and Humidity Chamber

Overview

The LabCompanion RZ-80 is a compact, benchtop-scale programmable temperature and humidity chamber engineered for precision environmental simulation in quality control laboratories, R&D facilities, and academic testing environments. It employs a balanced temperature and humidity control (BTHC) architecture—where heating, humidification, and refrigeration outputs are dynamically modulated via proportional-integral-derivative (PID) algorithms—to maintain stable thermal and hygrometric conditions over extended test durations. Unlike open-loop or on-off systems, the BTHC method ensures that energy input precisely offsets thermal and moisture losses, enabling high reproducibility in accelerated aging, stability, and stress testing protocols. The chamber operates across a wide climatic envelope (−20°C to +150°C; 30–95% RH), making it suitable for evaluating material behavior under both low-temperature desiccation and high-temperature saturated conditions—critical for validating packaging integrity, electronic component reliability, polymer dimensional stability, and pharmaceutical excipient compatibility.

Key Features

• Compact benchtop footprint (external dimensions: 94 × 86 × 83 cm) optimized for space-constrained labs without compromising internal usable volume (40 × 50 × 40 cm)
• Dual-wall construction with SUS#304 stainless steel interior and exterior panels, ensuring corrosion resistance, cleanability, and long-term structural integrity
• High-efficiency rigid polyurethane foam insulation (≥80 mm thickness) minimizing thermal bridging and external surface temperature rise
• Hermetically sealed, imported EU/US-origin refrigeration compressor paired with eco-friendly refrigerant (R134a or equivalent), compliant with current global ozone-depletion and GWP regulations
• Multi-stage evaporator design with automatic load capacity modulation, enabling precise low-temperature ramping and energy-efficient operation
• U-shaped immersion-type humidifier with stainless steel sheath and integrated dry-run protection, delivering rapid, uniform vapor generation
• Korean-manufactured programmable controller featuring full-English LCD interface, real-time curve display, and dual-mode operation (constant setpoint or multi-segment program)
• Comprehensive safety architecture including high-limit temperature cutoff, compressor high-pressure protection, phase failure detection, and auto-recovery after power interruption

Sample Compatibility & Compliance

The RZ-80 accommodates a broad range of sample types—including small electronic assemblies, polymer specimens, pharmaceutical blister packs, printed circuit boards, and coated substrates—within its thermally homogeneous workspace. Its internal geometry and forced-air circulation system (90 W stainless steel shaft motor with multi-blade impeller) ensure airflow uniformity per ISO 16750-4 and IEC 60068-3-5 requirements. The chamber meets core environmental test standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-78 (damp heat, steady state), and ASTM D4332 (conditioning of packaging). While not certified to GLP or FDA 21 CFR Part 11 out-of-the-box, its controller supports optional LAN connectivity for integration into validated networked data acquisition systems, enabling audit-trail-capable logging when paired with compliant software platforms.

Software & Data Management

The standard controller provides local data visualization—including real-time temperature/humidity curves, segment progress tracking, and alarm history—with timestamped event logging stored internally. Optional LAN interface enables remote monitoring, parameter upload/download, and integration with laboratory information management systems (LIMS) or SCADA platforms. Raw sensor data (PT100 temperature, capacitive RH) is sampled at 1 Hz and recorded with ±0.1°C / ±1% RH resolution. For regulated environments, users may implement third-party validation packages supporting IQ/OQ documentation, electronic signature workflows, and 21 CFR Part 11-compliant audit trails—though such functionality requires external software deployment and site-specific qualification.

Applications

• Accelerated shelf-life testing of medical device packaging per ISO 11607
• Thermal cycling validation of automotive ECUs per ISO 16750-4
• Moisture absorption/desorption profiling of hygroscopic polymers (e.g., nylon, PVA)
• Stability assessment of active pharmaceutical ingredients (APIs) under ICH Q1A(R2) guidelines
• Pre-conditioning of samples prior to mechanical testing (tensile, impact, peel) per ASTM D618
• Environmental stress screening (ESS) of PCBAs during new product introduction (NPI)
• Calibration verification of portable hygrometers and thermometers against traceable references

FAQ

What is the recommended calibration interval for the RZ-80’s temperature and humidity sensors?
LabCompanion recommends annual calibration using NIST-traceable reference instruments; intervals may be adjusted based on usage frequency and internal quality procedures.
Can the RZ-80 perform rapid temperature transitions (e.g., thermal shock) between extremes?
No—the RZ-80 is designed for controlled, stable environmental conditioning rather than thermal shock testing; its cooling/heating rates are optimized for repeatability, not speed.
Is the controller firmware upgradable in the field?
Yes—firmware updates are provided by LabCompanion via USB stick or LAN connection, with version history and release notes available upon request.
Does the chamber support custom test profiles exceeding 100 segments?
The standard controller supports up to 100 programmable segments; extended sequencing requires external PC-based control software.
What maintenance is required for the refrigeration system?
Routine checks include condenser coil cleaning every 3 months, refrigerant leak inspection annually, and replacement of desiccant filter drier per manufacturer schedule or after any refrigerant service.