HAIDA HD-E702-1000K40/60 Programmable Temperature and Humidity Environmental Test Chamber

Overview

The HAIDA HD-E702-1000K40/60 is a high-precision, freestanding programmable environmental test chamber engineered for rigorous reliability validation across aerospace, automotive, electronics, materials science, and quality assurance laboratories. It operates on a dual-refrigeration circuit architecture—combining mechanical compression cooling with optimized heat exchange—to deliver stable, repeatable thermal and hygrothermal profiles across an extended operational envelope of −60 °C to +150 °C and 20–98% RH. Unlike ambient-coupled or single-stage systems, this chamber employs independent heating, humidification, and refrigeration subsystems, enabling simultaneous control of temperature and humidity without cross-interference. Its design complies with fundamental thermodynamic constraints of psychrometric control, utilizing PT100 platinum resistance sensors (IEC 60751 Class A) and PID + SSR coordinated regulation to minimize overshoot and stabilize setpoints within ±0.5 °C and ±2% RH under steady-state conditions. The chamber’s structural integrity supports long-duration accelerated aging tests—including temperature-humidity cycling per MIL-STD-810G Method 507.6 and IEC 60068-2-30—and serves as a primary tool for evaluating product robustness against storage, transit, and operational environmental stressors.

Key Features

• Stainless steel inner chamber (SUS304, 1.0 mm thick) with seamless welding and electropolished finish for corrosion resistance, cleanability, and non-outgassing performance.
• Double-layer vacuum-insulated observation window with integrated conductive film heating to prevent condensation and ensure unobstructed visual monitoring during low-temperature or high-humidity operation.
• Dual-stage refrigeration system using two imported Tecumseh (France) hermetic compressors—3 HP total capacity—with R404A/R23 mixed refrigerant and brazed plate heat exchangers for enhanced efficiency and reliability at ultra-low temperatures.
• Isolated stainless steel immersion-type humidifier with nickel-chromium heating elements and MgO insulation, coupled with an automatic water replenishment system and front-accessible reservoir for maintenance-free operation.
• 7-inch full-color TFT touchscreen controller (UYI, Taiwan) supporting up to 120 user-defined programs, each with 99 segments; features real-time curve plotting, USB/SD data logging, RS232/RS485 remote communication, and multi-language UI (English/Chinese).
• Comprehensive safety architecture including over-temperature cutoff, phase failure/sequence protection, compressor high-pressure shutdown, fan overheat detection, leakage current interruption, and automatic fault-triggered shutdown with event logging.
• Standard 100 mm diameter test port with insulated gasket and silicone plug, plus adjustable SUS304 sample shelves (2 included, load capacity ≥20 kg/shelf, uniformly distributed).

Sample Compatibility & Compliance

The HD-E702-1000K40/60 accommodates diverse sample geometries and mass loads within its 1000 L internal volume (1000 × 1000 × 1000 mm), supporting both static exposure and dynamic cycling protocols for components ranging from PCB assemblies and polymer composites to metal alloys and lithium-ion battery modules. Its chamber geometry and forced-air circulation—via backward-curved centrifugal blower—ensure uniform thermal distribution (≤2 °C deviation) and humidity homogeneity (±3% RH) per ISO 16750-4, ASTM D4332, and GB/T 2423.3–2016. The system meets critical regulatory benchmarks for environmental simulation: compliance with MIL-STD-810G (Methods 502.6, 507.6), IEC 60068-2 series (including 60068-2-1, -2-2, -2-30), GJB 150.3A–2009 and 150.4A–2009, and GB/T 10589–2008. All control firmware implements audit-trail-capable logging (time-stamped sensor values, alarm events, program transitions) aligned with GLP/GMP documentation requirements and FDA 21 CFR Part 11 principles for electronic records.

Software & Data Management

Data acquisition and analysis are enabled through native controller functionality and optional PC-based software. The UYI controller logs temperature/humidity traces at configurable intervals (default: 1 min) onto a pre-installed 2 GB SD card, with export capability via USB flash drive. Logged files follow CSV format for direct import into MATLAB, Excel, or LIMS platforms. RS232/RS485 interfaces support integration into centralized lab monitoring networks using Modbus RTU protocol. Optional Windows-compatible software provides graphical trend visualization, statistical process reporting (min/max/mean/stdev), deviation alerts, and PDF report generation—including header metadata (operator ID, test ID, chamber serial number, calibration due date). All stored data includes cryptographic time stamps and immutable sequence numbering to satisfy traceability requirements in ISO/IEC 17025-accredited testing environments.

Applications

• Accelerated life testing of electronic enclosures, connectors, and conformal coatings under combined thermal shock and moisture ingress conditions.
• Evaluation of hygroscopic expansion, dimensional stability, and delamination resistance in fiber-reinforced polymers and laminated composites.
• Validation of packaging integrity (e.g., blister packs, foil pouches) per ASTM F1980 for medical device shelf-life estimation.
• Qualification of automotive ECUs and sensors per ISO 16750-4 (climatic loads) and SAE J2334 (corrosion resistance under cyclic humidity).
• Material compatibility testing for adhesives, sealants, and encapsulants used in aerospace structural bonding applications.
• Pre-conditioning of lithium-ion cells prior to electrical performance characterization per UN 38.3 Section 40.3.

FAQ

What is the maximum allowable sample load inside the chamber?
The standard configuration supports up to 20 kg per shelf, with two shelves provided. Total loading must not obstruct airflow or exceed 80% of internal volume occupancy to maintain specified uniformity.
Does the chamber support ramp-soak cycling per IEC 60068-2-30?
Yes—the controller supports programmable linear ramps, dwell periods, and unlimited loop iterations with independent temperature and humidity setpoint scheduling, fully compliant with Test Db requirements.
Is calibration certification included with shipment?
A factory-as-built calibration report (traceable to NIM, China) is supplied, covering PT100 sensor verification at three points per range and humidity transducer validation at 35%, 65%, and 90% RH.
Can the system be integrated into a building management system (BMS)?
Via optional RS485 Modbus RTU output, the chamber can transmit real-time status, setpoints, alarms, and runtime hours to SCADA or BMS platforms.
What maintenance intervals are recommended for optimal performance?
Compressor oil and refrigerant levels should be verified annually; desiccant in the dryer filter replaced every 18 months; and chamber seals inspected quarterly for compression integrity and silicone elasticity.