Jianhu LTH/LCT/LRT High-Temperature Aging Test Chamber (Customizable Configuration)
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Models | LTH, LCT, LRT |
| Max Operating Temperature | ≤150 °C |
| Temperature Range (Standard) | RT+5 °C to +60 °C |
| Temperature Uniformity | ≤±2 °C (empty & loaded, within 300 mm from chamber walls/floor/ceiling) |
| Setpoint Resolution | 1 °C |
| Ramp Rate | ≤30 min (from ambient to 60 °C) |
| Power Supply | 380 V / 3-Phase / 50 Hz |
| Control System | PLC-based with dual-stage PID regulation |
| Monitoring Points | Up to 6 independent real-time temperature sensors |
Overview
The Jianhu LTH/LCT/LRT High-Temperature Aging Test Chamber is an engineered environmental test system designed for long-duration thermal stress evaluation of electronic components, automotive modules, power supplies, and industrial control units under controlled, uniform, and repeatable elevated-temperature conditions. It operates on the principle of forced-air convection heating within a thermally insulated enclosure, utilizing a top-mounted recirculating air handling unit with integrated heating elements and precision airflow management. Unlike compact benchtop ovens, this chamber-class system provides volumetric temperature stability across customizable interior dimensions—enabling full-system aging of multi-unit assemblies, rack-mounted equipment, or production batches. Its architecture supports both standard qualification protocols (e.g., JEDEC JESD22-A108, MIL-STD-810H Method 501.7) and custom-defined aging profiles requiring extended dwell times at stable setpoints between ambient +5 °C and 150 °C.
Key Features
- Modular double-skinned steel panel construction with high-density polyurethane insulation (≥80 mm), ensuring low thermal leakage and surface temperature compliance per IEC 60529 IP2X safety requirements.
- Dual-stage PID temperature control via industrial PLC, enabling precise heat energy modulation and minimizing overshoot during ramp phases.
- Top-mounted air handling unit comprising centrifugal circulation fan, stainless-steel finned tubular heaters, and overheat exhaust ducting—optimized for vertical airflow distribution and minimal dead zones.
- Real-time six-point temperature monitoring with rolling digital display; sensor inputs conform to Pt100 Class B tolerance (IEC 60751) and are traceable to national metrology standards.
- Comprehensive safety interlocks: overtemperature cutoff (independent mechanical thermostat), airflow failure detection, fire smoke sensing (EN 54-7 compliant detector), and door-open shutdown protocol.
- Configurable utility integration: multiple voltage-rated outlets (110 V/220 V/380 V), shielded Ethernet ports, and dedicated power feed-throughs with individual circuit breakers for DUT-level load management.
Sample Compatibility & Compliance
The chamber accommodates diverse product geometries through fully customizable internal dimensions, test rack configurations, and access port layouts—including observation windows with double-glazed tempered glass (optional anti-fog coating) and sealed cable entry glands. Load capacity is scalable up to 15 kW total dissipation while maintaining specified uniformity. All electrical and thermal subsystems comply with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), and structural design follows ISO 16750-4 (road vehicles—electrical loads) and IEC 60068-2-2 (environmental testing—dry heat). Optional documentation packages support GLP/GMP audit readiness, including calibration certificates, FAT/SAT reports, and traceable sensor verification logs.
Software & Data Management
While the base configuration employs a standalone HMI with embedded logic controller, optional RS485/Modbus TCP or Ethernet/IP interfaces enable integration into centralized lab management systems (e.g., LabWare LIMS, Siemens Desigo CC). Data logging records timestamped temperature values from all six monitoring points at user-defined intervals (1–600 seconds), stored internally for ≥30 days or streamed in real time to external SCADA platforms. Audit trails meet FDA 21 CFR Part 11 requirements when paired with validated third-party software—supporting electronic signatures, change history, and role-based access control for validation-critical environments.
Applications
- Accelerated life testing of PCBAs, LED drivers, and battery management systems per Telcordia GR-468-CORE.
- Thermal preconditioning prior to HALT/HASS screening sequences.
- Stability assessment of adhesives, encapsulants, and conformal coatings under sustained thermal load.
- Pre-shipment burn-in for industrial IoT gateways and edge computing hardware.
- Material compatibility studies involving polymer housing deformation, solder joint reliability, and connector contact resistance drift.
FAQ
What is the standard temperature uniformity specification, and how is it verified?
Uniformity is validated per ISO 16750-4 Annex D using nine calibrated Pt100 probes placed in a 3×3 grid at mid-height; results show ≤±2 °C deviation across the defined working zone (300 mm inward from all surfaces) under both empty and loaded conditions (≤15 kW total heat load).
Can the chamber be configured for temperatures above 60 °C?
Yes—models LTH and LRT support extended ranges up to 150 °C with upgraded insulation, high-temp gaskets, and ceramic-sheathed heating elements; engineering review and thermal load analysis are required prior to quotation.
Is remote monitoring supported out of the box?
Standard HMI includes local USB data export; Ethernet connectivity and cloud telemetry require optional communication module installation and configuration by certified field service engineers.
How does the exhaust override system respond during overtemperature events?
Upon exceeding user-defined alarm threshold, the PLC triggers fail-safe activation of the axial exhaust fan and simultaneous opening of motorized fresh-air dampers—achieving rapid thermal recovery without manual intervention while maintaining Class II ventilation safety integrity.
Are calibration services included with purchase?
Factory calibration is performed pre-shipment with NIST-traceable reference standards; annual recalibration and IQ/OQ/PQ validation support are available under separate service agreement.
