Labonce Labonce-150CH-T Temperature and Humidity Controlled Chamber

Overview

The Labonce Labonce-150CH-T is a precision-engineered temperature and humidity controlled chamber designed for reproducible environmental simulation in materials testing, pharmaceutical stability studies, electronics reliability validation, and quality assurance laboratories. It operates on a dual-control principle—simultaneous regulation of air temperature via refrigeration-heating balance and relative humidity via steam generation and dehumidification—enabling stable, long-term exposure under defined climatic conditions. The chamber conforms to GB/T 10586–2006, the Chinese national standard specifying performance requirements for wet-heat test chambers—including uniformity, fluctuation, recovery time, and sensor accuracy—ensuring metrological traceability and regulatory acceptability in domestic and export-oriented QA/QC workflows.

Key Features

• Advanced air circulation system with optimized duct geometry and rear-mounted centrifugal blower ensures uniform temperature distribution (≤2.0 °C) and humidity homogeneity (<±3 %RH deviation) across the entire 150 L working volume.
• High-density polyurethane foam insulation (≥100 mm thick, closed-cell structure) provides superior thermal resistance and moisture barrier integrity, minimizing energy consumption and condensation risk during low-humidity operation.
• Corrosion-resistant interior constructed entirely from mirror-finish AISI 304 stainless steel; exterior finished with electrostatically applied epoxy-polyester powder coating for mechanical durability and chemical resistance.
• Hermetically sealed, high-efficiency compressor (imported origin) paired with copper-aluminum finned evaporator and condenser enables reliable cooling down to 15 °C at full RH load, with acoustic noise <62 dB(A) during continuous operation.
• Capacitive humidity sensor (imported, factory-calibrated) delivers long-term stability (<0.5 %RH/year drift), zero maintenance requirement, and immunity to condensation-induced signal degradation.
• Programmable color touchscreen controller (7-inch TFT LCD) supports up to 100 segments, 99 cycles, and real-time curve display; data logging interval configurable from 1 to 3600 seconds, with USB export capability for CSV-formatted records.
• Dual independent safety architecture: over-temperature cut-off (mechanical backup thermostat), dry-run protection for humidifier, audible/visual alarm activation, and automatic power cutoff upon critical fault detection.

Sample Compatibility & Compliance

The Labonce-150CH-T accommodates a wide range of sample types—including packaged pharmaceuticals, polymer films, printed circuit boards, battery cells, and coated metal specimens—without introducing contamination or surface reactivity. Its 304 stainless steel chamber, absence of volatile organic adhesives or painted internal surfaces, and non-oil-based humidification system meet baseline cleanliness requirements for ISO 14644 Class 8 environments. While not certified to IEC 60068-2 series by default, its performance parameters align with key clauses of IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and IEC 60068-2-78 (damp heat). For regulated industries, the data logging function supports audit-ready record retention when paired with controlled user access and timestamped export logs—compatible with GLP-compliant documentation practices.

Software & Data Management

The embedded controller firmware includes built-in data storage (≥30 days at 1-minute intervals), password-protected parameter editing, and event-triggered alarm logging (e.g., door open duration, sensor fault, power interruption). Exported USB files contain ISO 8601 timestamps, channel identifiers (T_set, T_actual, RH_set, RH_actual), and status flags—facilitating import into LIMS, ELN, or statistical process control platforms such as JMP or Minitab. Optional RS485 Modbus RTU interface (available upon request) enables integration into centralized facility monitoring systems compliant with BACnet MS/TP or SNMP v3 architectures. No proprietary software installation is required for basic operation or data retrieval.

Applications

• Accelerated stability testing per ICH Q1A(R3) guidelines for drug substances and products under intermediate and long-term storage conditions.
• Environmental stress screening (ESS) of electronic assemblies prior to burn-in or functional verification.
• Moisture absorption/desorption kinetics measurement for hygroscopic polymers and composites.
• Calibration verification of portable hygrometers and thermometers against NIST-traceable reference standards.
• Pre-conditioning of test specimens prior to tensile, impact, or dielectric strength evaluation per ASTM D618 or ISO 291.
• Validation of packaging barrier performance under cyclic humidity exposure (e.g., ASTM F1249 for water vapor transmission rate correlation).

FAQ

What is the minimum achievable humidity at 60 °C?
At 60 °C, the practical lower limit is ~25 %RH due to saturation constraints of the steam-based humidification system; operation below this level requires optional desiccant-assisted dehumidification.
Can the chamber operate continuously for 30 days without intervention?
Yes—designed for unattended long-duration tests; verified runtime exceeds 720 hours with stable setpoint adherence and no manual recalibration required.
Is the USB data export format compatible with Excel and Python pandas?
Yes—CSV output uses UTF-8 encoding, comma delimiters, and ISO 8601 timestamps; headers are English-language and column-aligned for direct ingestion.
Does the unit support remote monitoring via Ethernet or Wi-Fi?
Standard configuration includes only USB and RS485 interfaces; Ethernet/Wi-Fi modules are available as factory-installed options with custom firmware enabling HTTP API access.
What maintenance is required for the humidifier system?
The stainless steel steam generator requires quarterly descaling using citric acid solution; no filter replacements or consumables are needed under normal tap water use with hardness <150 ppm.