Jianhu LTH-300P-AR Walk-in Environmental Test Chamber for Temperature & Humidity Cycling
| Brand | Jianhu |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | LTH-300P-AR |
| Pricing | Available Upon Request |
Overview
The Jianhu LTH-300P-AR is a fully integrated walk-in environmental test chamber engineered for rigorous temperature and humidity cycling validation of large-scale industrial components, subassemblies, and finished products. Designed in accordance with fundamental principles of psychrometric control and forced-convection thermal management, the chamber maintains precise, stable, and repeatable environmental profiles across wide operational ranges—enabling accelerated aging, reliability screening, and compliance verification under IEC 60068-2, MIL-STD-810, and GB/T 2423 standards. Its structural architecture supports continuous operation in laboratory, QC, and production-integrated environments, with an internal volume optimized for full-size automotive modules, aerospace enclosures, medical device cabinets, and telecom infrastructure hardware.
Key Features
- Modular insulated panel construction using stainless steel inner walls and baked enamel-coated Magnelis® steel outer cladding—ensuring corrosion resistance, structural rigidity, and long-term dimensional stability.
- Horizontal air distribution system with multi-blade centrifugal circulation fans and vertically oriented heat exchange ducts—eliminating thermal stratification and delivering ±0.5 °C temperature uniformity and ±2 % RH homogeneity (at 25 °C/60 % RH) throughout the working volume.
- Dual-stage refrigeration circuit employing hermetically sealed, OEM-sourced compressors from Europe and North America, operating with R-407C or R-134a refrigerant—compliant with EU F-Gas Regulation (EU) No 517/2014 and EPA SNAP requirements.
- Independent electric heating elements and steam-type humidification system with deionized water feed—supporting rapid ramp rates up to 3 °C/min (heating) and 2 °C/min (cooling), and humidity control from 20 % to 98 % RH at 25–85 °C.
- Programmable logic controller (PLC)-based interface with optional RS-232/RS-485 communication port—enabling remote parameter setting, real-time data logging, script-based test sequencing, and alarm-triggered email/SMS notifications via external SCADA integration.
- Comprehensive safety architecture including over-temperature cutoff, high-humidity shutoff, refrigerant pressure monitoring, door interlock, and automatic power disconnection upon critical fault detection—with on-screen diagnostic codes aligned to ISO 13849-1 Category 3 PLd functional safety guidelines.
Sample Compatibility & Compliance
The LTH-300P-AR accommodates test specimens up to 2.8 m (H) × 2.4 m (W) × 2.2 m (D), with customizable floor loading capacity (up to 1,200 kg distributed load). It supports passive and active DUT monitoring via standardized signal access ports (e.g., 0–10 V, 4–20 mA, thermocouple inputs). The chamber meets electromagnetic compatibility (EMC) per EN 61326-1 and electrical safety per EN 61010-1. Its environmental conditioning performance is validated against ASTM E145 Class I accuracy requirements and supports audit-ready documentation for GLP, GMP, and ISO/IEC 17025-accredited laboratories.
Software & Data Management
The embedded controller provides native CSV export of time-stamped temperature/humidity readings at user-defined intervals (1 s to 60 min resolution). Optional PC-based software enables graphical test plan creation, multi-channel trending, statistical process control (SPC) charting, and automated report generation compliant with FDA 21 CFR Part 11 (electronic signatures, audit trails, user role management). All data files are timestamped, digitally signed, and stored with immutable metadata—including operator ID, calibration status, and environmental deviation flags.
Applications
- Accelerated life testing of battery packs, EV power electronics, and charging infrastructure under combined thermal stress and moisture ingress conditions.
- Validation of packaging integrity and material degradation (e.g., adhesives, conformal coatings, elastomers) per ISTA 3A and ASTM D4332 protocols.
- Pre-compliance screening for automotive ECUs per ISO 16750-4 and AEC-Q200 stress categories.
- Stability studies for Class II and III medical devices under ICH Q1A(R3) and ISO 14971 risk management frameworks.
- Environmental qualification of defense-grade avionics per MIL-STD-810H Method 502.7 (temperature) and Method 507.6 (humidity).
FAQ
What is the standard temperature and humidity operating range for the LTH-300P-AR?
The chamber operates from –40 °C to +150 °C and 20 % to 98 % RH, with simultaneous capability down to –20 °C/98 % RH and up to +85 °C/98 % RH.
Does the system support validation documentation for regulated industries?
Yes—IQ/OQ templates, calibration certificates traceable to NIST, and FAT/SAT reports are available upon request for pharmaceutical, aerospace, and medical device customers.
Can the chamber be integrated into an existing facility’s BMS or MES platform?
Standard Modbus TCP and optional Profibus DP or EtherNet/IP gateways enable bidirectional communication with enterprise-level manufacturing execution systems.
Is on-site installation and commissioning included?
Jianhu-certified engineers perform mechanical and electrical commissioning, thermal mapping (per ISO 17025), and operator training as part of the delivery package.
What maintenance intervals are recommended for optimal system longevity?
Compressor oil analysis every 2,000 operating hours, condenser coil cleaning quarterly, and full refrigerant circuit inspection annually—per manufacturer-recommended preventive maintenance schedule.
