ACS SU250 Advanced Temperature and Humidity Environmental Test Chamber
| Brand | ACS |
|---|---|
| Origin | Italy |
| Model | SU250 |
| Instrument Type | Upright Chamber |
| Temperature Range | −40 °C to +180 °C |
| Humidity Range | 10 % to 98 % RH |
| Temperature Uniformity | ≤ ±0.5 °C |
| Humidity Uniformity | ≤ ±3 % RH (at >75 % RH) / ≤ ±5 % RH (at ≤75 % RH) |
| Heating Rate | 3 °C/min |
| Internal Dimensions (W×D×H) | 600 × 600 × 700 mm |
| Compliance | IEC 60068-3-5, IEC 60068-3-6, EN 60068-2-1, EN 60068-2-2, EN 60068-2-14, EN 60068-2-30 |
Overview
The ACS SU250 is a high-performance upright environmental test chamber engineered for precise, repeatable simulation of temperature and humidity stress conditions across industrial R&D, quality assurance, and regulatory validation workflows. Based on dual-duct air distribution architecture with independent refrigeration and steam humidification systems, the chamber employs a closed-loop PID control strategy governed by a certified PLC (Programmable Logic Controller) to maintain stringent thermal and hygrometric stability. Its operational envelope — spanning −40 °C to +180 °C and 10–98 % RH — supports both steady-state conditioning and dynamic temperature-humidity cycling per IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-14 (thermal shock), and IEC 60068-2-30 (damp heat cyclic) test standards. The chamber’s structural integrity, insulation performance (polyurethane foam with ≥120 mm thickness), and leak-tight inner chamber (stainless steel AISI 304) ensure long-term repeatability and minimal drift under continuous operation.
Key Features
- Integrated Kratos+ control software platform with real-time data acquisition, graphical trend analysis, and multi-parameter alarm management
- 10-inch full-color TFT touchscreen (16M colors) with intuitive HMI supporting both local and remote operation via Ethernet
- PLC-based safety architecture featuring redundant over-temperature, over-humidity, and door interlock protection circuits
- Configurable programmable test profiles: up to 30 stored programs, each supporting up to 3 nested loops and a maximum of 999 total cycles
- Remote multi-device management capability via optional Winkratos software suite for synchronized fleet-wide testing
- Comprehensive event logging with timestamped audit trail, compliant with GLP/GMP documentation requirements
- Flexible access control with role-based user authentication and password-protected parameter modification
- Real-time curve analysis tools including cursor-based point interrogation, slope calculation, zoom/pan navigation, and automated report generation
Sample Compatibility & Compliance
The SU250 accommodates a broad range of sample types — from electronic assemblies and automotive components to pharmaceutical packaging and polymer specimens — within its 252 L internal volume (600 × 600 × 700 mm). All internal surfaces are electropolished stainless steel (AISI 304), ensuring corrosion resistance and ease of cleaning in regulated environments. The chamber meets essential international compliance benchmarks including IEC 60068-3-5 (methods for determining performance characteristics), IEC 60068-3-6 (verification of performance), and EN 60068-2 series for environmental testing of electrotechnical products. Optional validation packages support IQ/OQ/PQ protocols aligned with ISO/IEC 17025 and FDA 21 CFR Part 11 requirements for electronic records and signatures.
Software & Data Management
Kratos+ serves as the unified control and data handling interface for the SU250, supporting both embedded operation and networked PC deployment. It provides native support for CSV and XML export formats, enabling seamless integration into LIMS and MES platforms. All measurement data — temperature, relative humidity, elapsed time, cycle stage, and alarm status — are continuously logged with millisecond-level timestamp resolution. Audit trails record operator actions, parameter changes, and system events in an immutable format. Software language options include English, German, French, Spanish, Italian, and Chinese — configurable per user session. Firmware updates are delivered via secure HTTPS, and configuration backups can be scheduled automatically or initiated manually.
Applications
The SU250 is routinely deployed in applications requiring rigorous environmental stress qualification: accelerated aging of adhesives and sealants; thermal cycling validation of PCBAs per IPC-9701; humidity resistance testing of medical device enclosures per ISO 11607; shelf-life studies of hygroscopic pharmaceuticals; qualification of aerospace composites under combined thermal/hygrometric load; and reliability screening of battery modules under extreme ambient conditions. Its stable low-humidity capability (<10 % RH) also supports moisture-sensitive component storage simulation and desiccant performance evaluation.
FAQ
What communication protocols does the SU250 support?
The chamber features standard Ethernet (TCP/IP) connectivity with Modbus TCP and OPC UA server options available upon request.
Is the Kratos+ software validated for use in GxP environments?
Yes — when deployed with enabled audit trail, electronic signature, and change control modules, Kratos+ complies with FDA 21 CFR Part 11 and EU Annex 11 requirements.
Can the SU250 perform temperature-humidity cross-cycling tests?
Yes — it supports simultaneous ramping of temperature and humidity per IEC 60068-2-30, with programmable dwell times and transition rates.
What is the recommended calibration interval?
ACS recommends annual calibration using NIST-traceable reference sensors; calibration certificates with uncertainty budgets are provided upon request.
Does the chamber include built-in data archiving?
Yes — internal SSD storage retains ≥12 months of continuous 1-second-interval data; archived datasets are exportable via USB or network transfer.
