Labonce Labonce-400TH Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Labonce Labonce-400TH Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for precise, repeatable simulation of thermal and hygrothermal stress conditions in laboratory and quality assurance environments. Designed according to the technical requirements specified in GB/T 10586–2006 (“Specifications for Damp Heat Test Chambers”), this chamber enables controlled exposure of materials, components, and finished products to defined temperature and relative humidity profiles—critical for evaluating long-term stability, corrosion resistance, packaging integrity, and functional reliability under accelerated aging or climatic stress protocols. Its 400 L internal volume accommodates medium-to-large test specimens—including electronic assemblies, automotive parts, pharmaceutical packaging, and polymer samples—while maintaining stringent uniformity and stability across the working space.

Key Features

• Advanced air circulation system with optimized duct design ensures uniform temperature distribution (≤2.0 °C) and humidity homogeneity throughout the chamber interior.
• High-density polyurethane foam insulation (≥100 mm thickness) provides superior thermal retention and moisture barrier performance, minimizing energy consumption and external environmental influence.
• Corrosion-resistant stainless steel 304 mirror-finish inner chamber—non-porous, non-shedding, and compatible with cleaning validation protocols per ISO 14644 and GMP Annex 1.
• Exterior housing constructed from premium-grade cold-rolled steel with electrostatic powder coating for mechanical durability and chemical resistance.
• Hermetically sealed, high-efficiency imported compressor with low-noise operation and extended service life under continuous duty cycles.
• Programmable color touchscreen controller supporting multi-segment ramp-soak profiles, fixed-point operation, real-time monitoring, and event logging.
• Capacitive humidity sensor (imported, high-temperature rated) delivering stable, low-drift RH measurement with no routine calibration required—certified for traceable accuracy per ISO/IEC 17025 guidelines.
• Integrated safety architecture including independent over-temperature cutoff, dry-run protection for humidifier, audible alarm, and door-mounted mechanical lock.
• Standard auxiliary features: two 50 mm diameter test ports with silicone rubber plugs, adjustable leveling casters with brakes, and reinforced observation window with anti-fog heating element.

Sample Compatibility & Compliance

The Labonce-400TH supports a broad spectrum of sample types—from rigid plastics and coated metals to hygroscopic pharmaceuticals and sealed medical devices—without introducing contamination or interfering with test validity. Its stainless steel interior meets USP material compatibility requirements for pharmaceutical testing environments. The chamber is routinely deployed in accordance with ASTM D4332 (Standard Practice for Conditioning Containers, Packages, or Packaging Components for Testing), IEC 60068-2-30 (Cyclic Damp Heat), and MIL-STD-810G Method 507.6. While GB/T 10586–2006 serves as its primary design standard, performance verification data—including temperature/humidity mapping reports and uncertainty budgets—can be generated to support GLP, ISO 9001, and ISO/IEC 17025 accreditation audits.

Software & Data Management

The embedded controller records time-stamped temperature and humidity values at user-defined intervals (1–600 seconds), storing up to 3 months of continuous data internally. All logs are exportable via USB flash drive in CSV format for post-processing in Excel, MATLAB, or LIMS platforms. Optional RS485 communication interface enables integration into centralized facility monitoring systems (e.g., DeltaV, Siemens Desigo, or custom SCADA). Audit trail functionality complies with FDA 21 CFR Part 11 requirements when paired with validated third-party software solutions; electronic signatures, user access levels, and change history tracking are supported through configurable firmware settings.

Applications

• Accelerated aging studies for polymer degradation, sealant adhesion loss, and battery electrolyte volatility.
• Stability testing of sterile barrier systems (ISO 11607) and moisture permeation analysis of flexible packaging (ASTM F1249).
• Environmental qualification of aerospace avionics per DO-160 Section 4.5 (Temperature and Humidity).
• Pre-conditioning of test specimens prior to mechanical, electrical, or optical characterization per ASTM E171 and ISO 291.
• Validation of cleanroom garment laundering efficacy under cyclic humidity exposure.
• Quality control release testing for consumer electronics subjected to JEDEC JESD22-A101 humidity resistance standards.

FAQ

What is the maximum operating humidity level at 100 °C?
The Labonce-400TH is rated for 20–95 %RH across its full temperature range (0–100 °C); however, sustained operation above 85 %RH at temperatures >85 °C requires optional condensate management upgrades to prevent internal condensation on critical surfaces.
Can the chamber perform rapid temperature transitions?
Standard configuration achieves approximately 3 °C/min average ramp rate (25 °C ↔ 60 °C, unloaded); faster rates are available with optional high-capacity refrigeration and auxiliary heater modules.
Is remote monitoring supported out-of-the-box?
Native Ethernet or Wi-Fi connectivity is not included but can be added via certified industrial gateway modules compliant with Modbus TCP and OPC UA protocols.
How often does the humidity sensor require recalibration?
The capacitive sensor is factory-calibrated and designed for drift-free operation over 24 months under normal use; annual verification against NIST-traceable hygrometers is recommended for GLP/GMP applications.
Are validation documents (IQ/OQ/PQ) provided?
Factory-issued IQ/OQ documentation is available upon request; PQ execution requires site-specific mapping and load configuration, typically conducted by qualified third-party validation partners.