YiHeng BPS-100CH Programmable Temperature and Humidity Chamber

Overview

The YiHeng BPS-100CH is a precision-engineered upright programmable temperature and humidity chamber designed for controlled environmental simulation in quality assurance, materials testing, pharmaceutical stability studies, and electronics reliability evaluation. It operates on a dual-loop PID-controlled thermohygrometric system utilizing TMHM (Thermal-Moisture Hybrid Modulation) balancing methodology—ensuring simultaneous, independent regulation of temperature and relative humidity with high reproducibility. The chamber employs an eco-friendly refrigerant cycle, fully compliant with international ozone-depleting substance phase-out protocols (Montreal Protocol Annex A), and integrates a robust air circulation architecture with rear-mounted centrifugal fans and optimized duct geometry to maintain uniformity across the entire working volume. Its structural design adheres to ISO 16750-4 (environmental conditions for automotive electronics) and IEC 60068-2 series standards for climatic testing, making it suitable for both R&D validation and routine compliance testing under GLP/GMP-aligned workflows.

Key Features

• Programmable controller with 100 user-defined test profiles, each supporting up to 1000 segments and 999 cycles; maximum segment duration: 99 hours 59 minutes
• 7-inch full-color TFT touchscreen interface with bilingual (English/Chinese) operation menu and real-time graphical display of temperature/humidity trends
• Imported 304 mirror-finish stainless steel interior chamber with radius-rounded corners and removable adjustable shelves for simplified cleaning and contamination control
• Independent over-temperature cut-off protection with audible/visual alarm; additional safeguards include compressor overheat, motor overcurrent, fan overtemperature, and low-water-level detection
• Power failure recovery function: all set parameters and running program states are retained in non-volatile memory and automatically resumed upon power restoration
• Φ25 mm sealed access port for external sensor feedthrough or real-time monitoring without compromising chamber integrity
• Energy-efficient refrigeration system using environmentally compliant refrigerant, optimized for low power consumption and long-term operational stability

Sample Compatibility & Compliance

The BPS-100CH accommodates diverse sample types—including polymer films, coated substrates, electronic assemblies, packaged pharmaceuticals, and biological reference standards—within its 110 L internal volume (500 × 400 × 550 mm). Its humidity control range (80–95% RH) targets high-humidity stress testing per ASTM D4332, ISO 4892-2, and ICH Q1A(R2) guidelines for accelerated stability protocols. Temperature uniformity meets ≤±1.5°C (at 60°C, 90% RH) and humidity uniformity ≤±4% RH across the working space, verified per ISO 17025-accredited calibration procedures. The unit supports optional traceable calibration certificates and is compatible with external data loggers for 21 CFR Part 11-compliant audit trails when paired with validated software platforms.

Software & Data Management

While the onboard controller provides local data visualization and basic logging, optional RS-232/RS-485 serial interfaces enable integration with third-party PC-based monitoring systems (e.g., LabVIEW, MATLAB, or custom SCADA environments). Users may configure remote programming, real-time parameter acquisition, and automated report generation—including time-stamped温湿度 curves and pass/fail status flags. When equipped with certified communication firmware and encrypted session protocols, the system supports electronic signature functionality and ALCOA+ data integrity principles required for regulated industries. Optional thermal printer connectivity allows hard-copy documentation of test records for archival and regulatory submission purposes.

Applications

• Accelerated aging and shelf-life prediction of medical device packaging per ISO 11607
• Environmental stress screening (ESS) of printed circuit boards and solder joints per IPC-9701
• Moisture absorption kinetics analysis for hygroscopic polymers and composites
• Stability testing of active pharmaceutical ingredients (APIs) and final drug products under ICH climate zones II–IV conditions
• Corrosion resistance evaluation of metallic coatings under cyclic humid heat exposure (ISO 6270-2)
• Validation of humidity-sensitive sensor performance and drift characteristics

FAQ

What is the maximum allowable ambient operating temperature for the BPS-100CH?

The chamber is rated for installation in rooms maintained between 15°C and 30°C ambient temperature, with relative humidity not exceeding 80% RH non-condensing.
Can the BPS-100CH achieve humidity levels below 80% RH?

No—the standard configuration is optimized for high-humidity operation (80–95% RH); for broader humidity ranges including desiccation, consider the YiHeng BHG series chambers.
Is the internal chamber volume verified per ISO 2859-1 sampling standards?

Chamber volume is geometrically calculated; volumetric accuracy is ±1.5% as certified in factory calibration reports available upon request.
Does the controller support password-protected parameter editing?

Yes—administrator-level access requires a four-digit PIN, and screen lock mode prevents inadvertent input during active tests.
What calibration standards are applied during factory verification?

Temperature and humidity sensors are calibrated against NIST-traceable reference probes (Rotronic HC2-AW and Fluke 1523) prior to shipment, with full uncertainty budgets provided in the Certificate of Conformance.