KS-TH Series Environmental Stress Screening Chamber (Temperature & Humidity Cycling Test Chamber)
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | −20 °C to 150 °C (model-dependent) |
| Humidity Range | 20–98% RH |
| Internal Dimensions | 40 cm (W) × 50 cm (H) × 40 cm (D) |
| External Dimensions | 100 cm (W) × 80 cm (H) × 105 cm (D) |
| Power Supply | AC 220 V, Single Phase |
| Compliance | GB/T 5170.18, GB/T 10586, GB/T 2423.22, IEC 60068-2-14 |
Overview
The KS-TH Series Environmental Stress Screening Chamber is a precision-engineered thermal and humidity cycling test system designed for accelerated reliability evaluation of industrial components and materials under controlled, dynamically varying environmental conditions. Operating on the principle of programmable temperature-humidity profile execution—comprising rapid ramping, dwell, and transition phases—the chamber enables simulation of real-world thermal shock, condensation, and hygrothermal stress scenarios. It supports both steady-state and cyclic testing protocols, making it suitable for pre-compliance screening in product development, qualification of electronic assemblies, validation of packaging integrity, and long-term stability assessment of polymers, coatings, and metallic substrates. The chamber’s architecture integrates dual-refrigeration circuitry (for models with sub-zero capability), high-efficiency steam humidification, and precision PID-controlled air circulation—ensuring traceable, repeatable, and ISO/IEC 17025-aligned test environments.
Key Features
- Compact footprint with optimized internal volume-to-external dimension ratio—ideal for laboratory benchtop integration and multi-unit stacking configurations.
- Advanced airflow design featuring tangential blower and baffle-guided recirculation ensures ±0.5 °C temperature uniformity and ±2% RH homogeneity across the working volume (per IEC 60068-3-5).
- Programmable controller with 128-step cycle memory, real-time graphing, and user-defined ramp rates (0.5–10 °C/min typical; humidity ramping up to 10% RH/min).
- Comprehensive safety architecture including over-temperature cutoff, compressor high-pressure shutdown, heater dry-run protection, and automatic power-loss recovery with parameter retention.
- Optional data logging module (RS-485/Modbus RTU or Ethernet interface) supports time-stamped CSV export and integration with LIMS or MES platforms.
- Dual-port terminal block for external signal synchronization—enabling coordinated operation with external power analyzers, leakage current testers, or functional test fixtures via dry-contact timing triggers.
Sample Compatibility & Compliance
The KS-TH chamber accommodates standard test specimens up to 30 kg load capacity, with unobstructed airflow paths maintained for PCBs, sensor modules, battery packs, printed circuit assemblies, and small mechanical enclosures. Its thermal mass and humidity response characteristics have been validated against national metrological standards: GB/T 5170.18 (temperature fluctuation and uniformity), GB/T 2423.22 (thermal shock test methods), and GB/T 10586 (humidity performance). While not certified to UL or CE as a standalone appliance, the unit meets essential safety and EMC requirements per GB 4793.1 and GB/T 18268 for laboratory equipment. For regulated industries (e.g., medical device QSR or automotive AEC-Q200), the chamber may be deployed within GLP/GMP-compliant workflows when paired with validated calibration procedures and audit-ready documentation packages.
Software & Data Management
The integrated controller provides native support for test program creation, execution monitoring, and alarm event logging—including timestamped deviation alerts, setpoint tracking, and runtime diagnostics. Optional PC-based software (KS-LogSuite v3.x) extends functionality with multi-chamber fleet management, statistical process control (SPC) charting, PDF report generation (with digital signature fields), and 21 CFR Part 11–compliant audit trail configuration (user access logs, parameter change history, electronic signature capture). All data files are stored in open-format CSV or XML, ensuring interoperability with third-party analysis tools such as MATLAB, JMP, or Python-based reliability modeling frameworks.
Applications
- Accelerated life testing of solder joints, conformal coatings, and flexible printed circuits under thermal-hygric cycling.
- Qualification of moisture sensitivity levels (MSL) per JEDEC J-STD-020 for surface-mount components.
- Evaluation of corrosion resistance in coated metal parts using combined humidity + temperature cycling (non-salt fog mode).
- Stability assessment of adhesives, sealants, and encapsulants used in automotive ECU housings or aerospace sensors.
- Pre-screening of lithium-ion battery cells prior to HALT/HASS campaigns.
- Verification of packaging barrier performance for pharmaceutical blister packs and diagnostic reagent kits.
FAQ
What is the maximum allowable sample mass inside the working chamber?
The recommended maximum static load is 30 kg, distributed evenly to avoid airflow obstruction and thermal gradient distortion.
Does the chamber support continuous operation at 150 °C and 98% RH simultaneously?
No—maximum humidity is limited to 85% RH above 85 °C per IEC 60068-3-4 to prevent condensation-induced electrical hazards and sensor drift.
Can the controller store multiple test profiles for different product families?
Yes—up to 128 programmable cycles can be saved internally, each supporting independent ramp/dwell sequences, alarm thresholds, and data sampling intervals.
Is calibration certificate included with shipment?
A factory calibration report (traceable to NIM China) is provided; ISO/IEC 17025-accredited field calibration services are available upon request.
What communication protocols are supported for remote monitoring?
Standard RS-485 Modbus RTU; optional Ethernet/IP or OPC UA gateway modules enable SCADA integration.
