LabCompanion HZ-80-E Benchtop Temperature and Humidity Controlled Chamber

Overview

The LabCompanion HZ-80-E is a compact, benchtop-grade temperature and humidity controlled chamber engineered for precision environmental simulation in laboratory-scale material testing, stability studies, and quality assurance workflows. It operates on the BTHC (Balanced Temperature and Humidity Control) principle—dynamically modulating heating, refrigeration, and humidification outputs to maintain setpoint conditions with minimal overshoot and high reproducibility. Unlike walk-in chambers or floor-standing units, the HZ-80-E delivers full environmental control within a footprint of 100×65 cm, making it ideal for space-constrained R&D labs, QC laboratories, and academic research settings where multi-unit stacking or modular integration is required. Its thermodynamic architecture integrates a hermetically sealed Tecumseh compressor, PT100 dry/wet-bulb sensing, and shallow-tank electric humidification—ensuring stable vapor generation without water carryover or condensation-induced sensor drift.

Key Features

• Benchtop form factor with stackable mechanical design—enables vertical arrangement of multiple units without structural reinforcement or dedicated floor space.
• High-fidelity dual-sensor feedback loop using calibrated PT100 dry-bulb and wet-bulb probes for real-time dew point calculation and RH derivation per ISO 4677 and ASTM E104.
• Optimized air circulation via forward-curved centrifugal blower and asymmetric duct geometry—achieving ±1°C temperature uniformity and ±3% RH uniformity across the entire 80 L working volume (40×50×40 cm).
• TEMI-series touchscreen controller with embedded data logging (up to 10,000 data points), user-defined ramp/soak profiles, and configurable alarm thresholds for over-temperature, low-humidity, compressor fault, and water reservoir depletion.
• Robust thermal insulation comprising rigid polyurethane foam (≥30 mm thickness) and glass wool backing—reducing external heat gain and improving energy efficiency under ambient conditions of +5°C to +30°C.
• Full safety redundancy: independent thermal cutouts, compressor overcurrent/overpressure protection, dry-run prevention for humidifier, and automatic power-loss recovery with memory retention for all active test parameters.

Sample Compatibility & Compliance

The HZ-80-E accommodates a broad range of non-hazardous solid and packaged samples—including polymer films, pharmaceutical blister packs, electronic components, printed circuit boards, and coated substrates—within its stainless steel interior (mirror-finish 304 SS) and corrosion-resistant exterior (powder-coated steel). Its operational envelope complies with key international test standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), and JIS Z 8701-2017. While not certified for Class A GLP/GMP validation out-of-the-box, the system supports IQ/OQ documentation packages and can be configured with optional RS485/Modbus RTU interface for integration into FDA 21 CFR Part 11-compliant data acquisition networks when paired with validated third-party software.

Software & Data Management

The integrated TEMI controller provides local parameter configuration, real-time trend visualization, and onboard event logging with time-stamped entries for all alarms and mode transitions. Optional USB export enables CSV-formatted datasets for post-processing in MATLAB, Python (pandas), or statistical analysis platforms. For enterprise-level deployment, the RS485 communication port (available as accessory) permits bidirectional SCADA integration—supporting remote start/stop, setpoint updates, and live telemetry streaming. Audit trail functionality meets baseline requirements for ISO/IEC 17025-accredited laboratories conducting environmental stress screening per MIL-STD-810G Method 507.5.

Applications

• Accelerated aging studies of packaging materials under controlled RH gradients (e.g., barrier film permeability vs. 40°C/75% RH).
• Stability testing of small-batch pharmaceutical intermediates per ICH Q1A(R2) guidelines.
• Thermal cycling qualification of surface-mount devices (SMDs) prior to reflow soldering process validation.
• Conditioning of hygroscopic reference standards before gravimetric moisture analysis (ASTM D4442).
• Pre-test equilibration of composite specimens for tensile, flexural, or impact testing per ASTM D638/D790/D256.
• Calibration verification of portable hygrometers and thermometers against NIST-traceable chamber conditions.

FAQ

What is the maximum sample load capacity without compromising temperature/humidity uniformity?
The chamber maintains specified uniformity up to 70% volumetric loading—i.e., ≤56 L of non-air-restricting fixtures or trays. Dense or thermally massive samples may require extended stabilization time.
Can the unit operate continuously at 100°C and 95% RH simultaneously?
No. The maximum simultaneous operating envelope is bounded by the psychrometric limit: at 100°C, saturation RH is ~100%, but the system’s humidification capacity and condensation management are rated for stable operation up to 85°C/95% RH or 100°C/60% RH.
Is the TEMI controller compliant with FDA 21 CFR Part 11 for electronic records?
The base controller supports audit-ready logging but lacks built-in electronic signatures and role-based access control. Full Part 11 compliance requires integration with validated third-party LIMS or ELN systems via Modbus.
Does the chamber include validation documentation (IQ/OQ)?
Factory-assembled units ship with a calibration certificate traceable to national standards. Formal IQ/OQ protocols and templates are available upon request and must be executed on-site by qualified personnel.
What maintenance intervals are recommended for long-term reliability?
Monthly inspection of water reservoir cleanliness and drain line integrity; quarterly verification of sensor calibration (dry/wet bulb); annual refrigerant pressure check and compressor oil assessment per manufacturer service bulletin SB-HZ-2023-01.