Apkji AP-HX-150B3 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Apkji AP-HX-150B3 is a benchtop temperature and humidity controlled environmental test chamber engineered for precision simulation of dynamic climatic stress conditions in R&D, quality assurance, and compliance validation workflows. It operates on the principle of Balanced Temperature and Humidity Control (BTHC), integrating independent PID-regulated heating, refrigeration, humidification, and dehumidification subsystems to maintain highly reproducible thermal and hygrometric profiles across its full operational envelope. Designed for rigorous application in aerospace component qualification, automotive electronics validation, consumer appliance reliability testing, and electronic component aging studies, the chamber supports both steady-state and programmable cyclic exposure protocols—including rapid transitions between extreme low-temperature (−40 °C), high-temperature (+150 °C), and high-humidity (up to 98 % RH) environments. Its compact 150 L internal volume and air-cooled architecture make it suitable for laboratory-scale testing where floor space and infrastructure constraints limit deployment of walk-in systems.

Key Features

• Stainless steel (SUS304) interior chamber with seamless welding and electropolished finish for corrosion resistance and ease of cleaning
• Exterior housing constructed from cold-rolled steel with electrostatic powder coating for mechanical durability and chemical resistance
• High-efficiency insulation using rigid polyurethane foam (≥80 mm thickness) with thermal conductivity ≤0.022 W/m·K, minimizing energy consumption and external surface temperature rise
• Imported silicone door gasket ensuring leak-tight sealing and long-term compression set resistance at elevated humidity levels
• Korean-made 7-inch color touchscreen controller with 0.1 °C/0.1 % RH resolution, supporting up to 100 programmable segments, 999 cycles, and real-time graphical display of chamber conditions
• Independent control loops for heating (stainless steel finned air heater), humidification (shallow-pan steam generator), and cooling (hermetically sealed imported compressor with single-stage or cascade refrigeration circuit)
• Integrated water purification system and auto-fill function with level monitoring and dry-run protection
• Custom-designed axial airflow system featuring aluminum impeller blades and dedicated HVAC-grade motor for uniform temperature/humidity distribution (verified per IEC 60068-3-5)
• Large observation window with embedded LED lighting and anti-fog coating for uninterrupted visual monitoring during extended tests
• Comprehensive safety architecture including over-temperature, over-humidity, compressor high-pressure, phase failure, and door-open interlock protections

Sample Compatibility & Compliance

The AP-HX-150B3 accommodates a wide range of sample types—including PCB assemblies, polymer enclosures, lithium-ion battery modules, optical sensors, and medical device housings—within its 500 × 600 × 500 mm working volume. Its performance conforms to multiple international and national standards governing environmental testing equipment: GB/T 10586–2006 (Humidity Test Chambers), GB/T 10589–2008 (Low-Temperature Test Chambers), GB/T 10592–2008 (Temperature/Humidity Chamber Specifications), and GB/T 2423.1–2008 (Test Aa/Ab: Cold) and GB/T 2423.2–2008 (Test Bb: Dry Heat). While not certified to IEC 60068-2 series by default, its design parameters—including temperature uniformity (±2.0 °C), humidity uniformity (≤±3 % RH), and stability metrics—meet typical acceptance criteria for GLP-compliant laboratories performing internal qualification or supplier auditing. The chamber’s control system supports audit-ready data logging with time-stamped event records, enabling traceability required under ISO/IEC 17025 and FDA 21 CFR Part 11 (when paired with validated software configuration).

Software & Data Management

The embedded Korean touchscreen controller provides native support for RS485 (Modbus RTU) and optional Ethernet interfaces, enabling integration into centralized lab management platforms via standard SCADA protocols. All test profiles, runtime logs, alarm histories, and sensor calibration data are stored internally on non-volatile flash memory with automatic timestamping. Export functionality supports CSV format for post-test statistical analysis in Excel or Minitab. Optional PC-based software (sold separately) extends capabilities to remote monitoring, multi-chamber synchronization, automated report generation (PDF/Excel), and deviation alerting via email/SMS. For regulated environments, firmware versioning, user access levels (admin/operator/guest), and electronic signature support can be configured to align with GxP documentation requirements.

Applications

• Accelerated life testing of printed circuit board assemblies under combined thermal cycling and moisture ingress stress
• Validation of IP-rated enclosures per IEC 60529 against condensation-induced corrosion and seal integrity loss
• Material compatibility assessment of adhesives, conformal coatings, and potting compounds under prolonged high-RH exposure
• Pre-conditioning of lithium-ion cells prior to electrical performance characterization per UN 38.3 Section 4.4
• Environmental screening of automotive ECUs according to ISO 16750-4 (Climate Load Conditions)
• Reliability verification of IoT sensor housings subjected to diurnal temperature/humidity cycling
• Stability testing of pharmaceutical packaging materials per ICH Q1A(R2) guidelines (when operated within specified RH tolerance bands)

FAQ

What is the maximum allowable ambient temperature for stable operation?
The chamber is rated for continuous operation when ambient temperature remains between 5 °C and 30 °C. At ambient temperatures above 30 °C, cooling capacity and low-temperature reach may degrade; operation below 5 °C requires optional low-ambient kit.
Does the unit include built-in data logging capability?
Yes—the controller records temperature, humidity, setpoints, alarms, and system status at user-defined intervals (default: 1 minute) with ≥30 days of onboard storage.
Can the chamber perform ramp-and-soak profiles with humidity modulation?
Yes. The BTHC architecture allows fully independent programming of temperature and humidity ramps, holds, and transitions within a single test sequence.
Is calibration documentation provided with shipment?
A factory calibration certificate (traceable to NIM China) is included, covering temperature and humidity sensors at three points across the operating range. Full metrological recalibration services are available through Apkji’s authorized service network.
What maintenance intervals are recommended for optimal performance?
Monthly inspection of water reservoir, drain lines, and air filter; quarterly verification of door seal integrity and sensor response; annual refrigerant pressure check and humidifier descaling. Detailed procedures are outlined in the included maintenance manual.