LabCompanion SP-120U Programmable Temperature and Humidity Environmental Test Chamber
| Brand | LabCompanion |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | SP-120U |
| Internal Volume | 120 L |
| Internal Dimensions (W×H×D) | 500 × 600 × 400 mm |
| Temperature Range | −70 to +150 °C |
| Humidity Range | 10–98% RH (with optional dehumidification module) |
| Temperature Uniformity | ±0.5 °C |
| Temperature Deviation | ≤ ±2.0 °C |
| Humidity Deviation | ±2.5% RH |
| Heating Rate | −70 → +150 °C in ≤60 min (~3 °C/min) |
| Cooling Rate | +20 → −70 °C in ≤90 min (~1.2 °C/min) |
| Refrigerant | R507 (HFC-based, ozone-safe) |
| Control System | ETAC820 Touchscreen PLC Controller (50 programs, 2500 segments) |
| Compliance | GB/T 10586, GB/T 10592, GB/T 2423.1/3/4/34, MIL-STD-810D, GJB 150.9, IEC 60068-2-3 |
Overview
The LabCompanion SP-120U is a precision-engineered programmable temperature and humidity environmental test chamber designed specifically for reliability validation of electronic components, electrical assemblies, and optoelectronic devices under controlled climatic stress conditions. Based on dual-stage mechanical refrigeration (single-stage for standard operation; cascade configuration for extended low-temperature performance) and steam-based humidification via stainless-steel UL-type heaters, the SP-120U delivers stable, repeatable thermal-hygrometric profiles across its full operational envelope. Its architecture adheres to fundamental thermodynamic principles governing heat transfer, phase-change moisture delivery, and convective air distribution—enabling accurate simulation of real-world storage, transport, and operational environments per internationally recognized environmental stress testing protocols.
Key Features
- Robust dual-mode refrigeration system: European-sourced hermetic rotary compressors with R507 refrigerant ensure long-term stability and compliance with Montreal Protocol–aligned environmental standards.
- High-fidelity climate control: ETAC820 touchscreen controller integrates PID algorithms with platinum RTD (Pt100) sensor feedback, delivering resolution of ±0.1 °C in temperature and ±1% RH in humidity.
- BTHC (Balanced Temperature & Humidity Control) methodology enables independent, dynamic modulation of heating, cooling, humidification, and dehumidification—minimizing overshoot and improving profile fidelity during complex ramp-soak cycles.
- Uniform airflow design featuring centrifugal circulation fans and optimized baffle geometry ensures spatial temperature/humidity uniformity ≤ ±2.0 °C and ≤ ±2.5% RH across the 120 L working volume.
- Structural integrity: Interior chamber constructed from SUS304 stainless steel; exterior finished with electrostatically applied powder coating over cold-rolled steel or optional brushed stainless cladding.
- Comprehensive safety architecture: Independent dry-run protection for humidifiers, overtemperature cutoffs (dual-stage), high-pressure refrigerant monitoring, phase-loss detection, ground-fault interruption, and automatic fault logging with audible/visual alerts.
- Modern data governance: Built-in LAN interface supports SCADA/IPC integration for multi-chamber fleet monitoring; USB 2.0 port enables encrypted export of time-stamped test logs (CSV), runtime diagnostics, and alarm histories without external hardware.
Sample Compatibility & Compliance
The SP-120U accommodates PCBs, lithium-ion batteries, LCD modules, fiber optic transceivers, power semiconductors, and encapsulated sensor assemblies—supporting standardized mounting via two adjustable stainless-steel shelves and a Φ50 mm cable port with removable gasket. Its validated performance meets the physical and procedural requirements of multiple international standards, including ISO/IEC 17025-aligned calibration traceability pathways. It is routinely deployed in GLP-compliant laboratories conducting accelerated life testing per IEC 60068-2 series, qualification per MIL-STD-810G Method 507.5 (Temperature/Humidity Bias), and conformance verification per USP environmental stability guidance. The chamber’s documented uncertainty budget aligns with ASTM E2744-21 for environmental test equipment qualification.
Software & Data Management
The embedded ETAC820 controller provides full audit-trail capability compliant with FDA 21 CFR Part 11 Annex 11 requirements—including user-level access control, electronic signatures, immutable event logging, and configurable retention policies. All program definitions (up to 50 stored, each containing up to 2500 segments), real-time trend curves, and deviation reports are timestamped and checksum-verified. Optional remote supervision software enables centralized management of heterogeneous chamber fleets via secure HTTPS/TLS connections, supporting automated report generation in PDF/XLSX formats and integration with LIMS platforms through RESTful API endpoints. Data exports retain native resolution and metadata (e.g., sensor ID, calibration date, operator login).
Applications
- Qualification testing of automotive ECUs under combined thermal cycling and humidity soak per AEC-Q200.
- Accelerated moisture sensitivity level (MSL) screening of surface-mount packages per J-STD-020.
- Long-term aging studies of OLED display drivers at elevated temperature/humidity bias conditions.
- Reliability assessment of medical-grade power supplies per IEC 60601-1 Clause 10.2.3 (environmental stress).
- Validation of conformal coating integrity on aerospace avionics substrates using humidity freeze-thaw cycling.
- Stress screening of 5G RF front-end modules under rapid thermal transients coupled with high-RH exposure.
FAQ
What is the lowest achievable humidity level with the SP-120U?
With the optional desiccant-assisted dehumidification module installed, the chamber achieves ≤10% RH at 25 °C—validated per ISO 12207 Annex B.
Can the SP-120U perform temperature-humidity combination cycling per MIL-STD-883 Method 1004.2?
Yes—the controller supports fully customizable multi-segment profiles with synchronized temperature and humidity ramps, holds, and transitions required by Method 1004.2 and GB/T 2423.34.
Is calibration documentation provided with shipment?
Each unit ships with a factory-issued calibration certificate covering temperature (−70 °C to +150 °C) and humidity (20–98% RH) points, traceable to NIM (China National Institute of Metrology) standards.
Does the system support unattended operation over weekends or holidays?
Yes—integrated power-fail recovery retains program state and resumes execution from the exact segment and timestamp upon restoration, with battery-backed real-time clock and non-volatile memory.
What maintenance intervals are recommended for optimal performance?
Compressor oil analysis every 24 months; condenser coil cleaning quarterly; humidifier tank inspection biweekly; RTD verification annually per ISO/IEC 17025 internal procedure.
