LabCompanion C-225-40 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The LabCompanion C-225-40 is a vertically oriented, precision-engineered temperature and humidity controlled environmental test chamber designed for laboratory-grade stability testing, accelerated aging, material conditioning, and long-term reliability evaluation. It operates on a dual-loop PID-controlled refrigeration and humidification system, integrating a high-efficiency cascade compressor for sub-zero cooling and a stainless-steel steam generator with ultrasonic humidifier redundancy for precise RH modulation. The chamber maintains thermodynamic equilibrium through forced-air convection with adjustable airflow velocity and multi-point sensor feedback—ensuring spatial uniformity and temporal repeatability across its 150 L internal workspace (500 × 600 × 500 mm). Its operational envelope—from −40 °C to +150 °C and 20–98% RH—meets the baseline environmental stress requirements defined in IEC 60068-2, MIL-STD-810, and ISO 16750-4 for electronic component qualification, pharmaceutical stability studies per ICH Q1 guidelines, and food packaging permeability assessments.

Key Features

• Robust upright structural architecture with double-wall insulated stainless-steel interior and electrostatically coated cold-rolled steel exterior, minimizing thermal bridging and condensation risk.
• Dual-sensor monitoring system: independent platinum resistance thermometers (PT100) and capacitive humidity sensors calibrated traceably to NIST standards, with real-time deviation logging.
• Intelligent safety interlock suite including over-temperature cut-off, dry-run protection for humidifier, compressor high-pressure shutdown, and automatic water-level detection with audible/visual alarm and graceful shutdown sequence.
• Programmable ramp-soak profiles supporting up to 100 segments with variable rate control; user-defined hold conditions for extended dwell testing at critical environmental setpoints.
• Front-access observation window with low-emissivity heated glass to prevent fogging during low-temperature/high-humidity operation.

Sample Compatibility & Compliance

The C-225-40 accommodates standard laboratory sample racks, stacked trays, and custom fixtures compatible with ISO/IEC 17025-compliant calibration protocols. Its chamber geometry supports uniform exposure of PCB assemblies, blister-packed pharmaceuticals, polymer films, and biological culture vessels without airflow shadowing. The unit complies with CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. For regulated environments, it supports GLP/GMP-aligned validation documentation packages—including IQ/OQ/PQ templates—and optional audit-trail-enabled data logging compliant with FDA 21 CFR Part 11 when paired with LabCompanion’s certified software module.

Software & Data Management

Equipped with LabCompanion’s TC-Link™ control interface, the C-225-40 offers both local touchscreen operation and Ethernet-based remote monitoring via secure HTTPS web portal. All temperature and humidity readings are timestamped and stored internally (≥30 days at 1-min intervals) with optional SD card backup. Export formats include CSV and PDF reports with embedded metadata (operator ID, test ID, calibration certificate IDs). The system supports MODBUS TCP integration for centralized facility SCADA systems and includes configurable alarm escalation rules—email/SMS notifications triggered by out-of-specification excursions or hardware fault codes.

Applications

• Electronics: Thermal cycling and damp heat testing of semiconductors, connectors, and conformal-coated assemblies per JESD22-A101 and JEDEC J-STD-020.
• Pharmaceuticals: ICH Q1A(R3)-aligned long-term and accelerated stability studies under controlled temperature/humidity conditions (e.g., 25 °C/60% RH, 30 °C/65% RH).
• Materials Science: Hygrothermal aging of composites, adhesives, and elastomers to evaluate dimensional stability, modulus retention, and delamination onset.
• Food & Packaging: Water vapor transmission rate (WVTR) preconditioning of barrier films and shelf-life modeling under simulated retail storage climates.
• Academic Research: Reproducible environmental conditioning for microbiological growth studies, seed germination trials, and polymer crystallization kinetics.

FAQ

What is the maximum allowable load volume inside the chamber without compromising performance?
For optimal uniformity and stability, total sample volume should not exceed 30% of internal chamber volume (i.e., ≤45 L), with adequate clearance (≥50 mm) around all surfaces for unobstructed airflow.
Does the unit support external sensor input for monitoring samples directly?
Yes—two auxiliary Pt100 inputs are provided for real-time external probe integration, enabling concurrent chamber ambient and sample-core temperature tracking.
Is calibration certification included with shipment?
Each unit ships with a factory-as-built calibration report (temperature and humidity at three points: low/mid/high range), traceable to national metrology institutes. UKAS-accredited field calibration services are available upon request.
Can the chamber operate continuously at −40 °C and 98% RH simultaneously?
No—condensation and frost formation limit simultaneous extreme low-temperature and high-humidity operation. The controller enforces safe operating boundaries per ASHRAE Fundamentals Chapter 18 psychrometric constraints.
What maintenance intervals are recommended for sustained accuracy?
Humidifier tank cleaning every 72 hours during active use; refrigerant circuit inspection annually; sensor recalibration every 12 months or after 2000 operational hours—whichever occurs first.