Tenney Lunaire CEO Environmental Test Chamber

Overview

The Tenney Lunaire CEO Environmental Test Chamber is a high-performance, large-volume stability chamber engineered for precision thermal aging, accelerated shelf-life studies, and long-term material reliability testing under controlled temperature and optional humidity conditions. Built upon Blue M’s legacy of industrial-grade environmental simulation systems, the Lunaire CEO employs a horizontal airflow architecture with centrifugal blower-driven convection—optimized to achieve ±1.0°C temperature uniformity across its expansive internal workspace (up to 58 ft³ / ~1.64 m³). Its operational temperature range spans from -70°C to +180°C, with stable thermal control at ±0.5°C fluctuation and ±1.0°C spatial deviation—making it suitable for rigorous applications including ICH-compliant stability testing, polymer aging per ASTM D3045, elastomer degradation per ISO 188, and pharmaceutical packaging qualification per USP . The system integrates non-CFC refrigeration, alloy-sheathed tubular heaters, and Vapor-Flo™ humidification technology (in humidity-capable configurations), enabling repeatable, traceable, and auditable test environments aligned with GLP and GMP requirements.

Key Features

• Four standard working volumes: 8, 16, 32, and 58 ft³—each configurable with identical thermal performance metrics and controller architecture
• Watlow F4T controller with INTUITION™ graphical interface: 4.3-inch color touchscreen, TRU-TUNE+ adaptive PID algorithm, real-time clock with battery backup, and support for up to 40 programmable ramp-and-soak profiles
• Horizontal airflow design with externally mounted motor-driven centrifugal impeller ensures consistent heat distribution and minimizes thermal stratification
• Integrated humidity system (optional): 5-gallon reservoir, water softener, reverse osmosis pre-treatment, condensate pump, external desiccant dryer (enabling down to 5% RH), and Vapor-Flo™ steam generator
• Robust mechanical construction: stainless-steel exterior, heated observation window with Lexan® sealed inner door, internal moisture-resistant dual outlets, NIST-traceable calibration ports, and optional OTP (over-temperature protection) hardware cutoff
• Communication & data integrity: RS-232/RS-485 serial interface, Ethernet Modbus TCP, USB 2.0 host port, built-in data logging with graphical trend display, and compatibility with PLC or SCADA integration

Sample Compatibility & Compliance

The Lunaire CEO accommodates diverse sample geometries—including stacked pallets, multi-tiered racks, and full-scale packaging units—within its reinforced interior cavity. Its modular rack system supports custom shelving configurations (stainless steel options available), while the chamber’s drain channel and door gasket groove facilitate moisture management during high-RH operation. All models are designed to meet critical regulatory expectations: ICH Q1A(R3) through Q5E stability protocols; ASTM D3045 (thermal aging of plastics); ISO 188 (vulcanized rubber aging); and USP (environmental testing of pharmaceutical packaging). Optional NIST-traceable calibration services are provided by Tenney Environmental in accordance with ISO/IEC 17025:2017, supporting audit readiness for FDA 21 CFR Part 11-compliant electronic records and signature workflows.

Software & Data Management

The Watlow F4T controller delivers deterministic process control via its embedded INTUITION™ firmware—supporting time-stamped event logging, alarm history with timestamped severity levels, and exportable CSV trend files. Data recording includes temperature (and humidity, if equipped), setpoint tracking, and system status flags (e.g., compressor cycle, heater duty cycle, fan speed). The controller’s Ethernet port enables secure remote monitoring via industry-standard Modbus TCP, while its USB host interface allows direct connection to a local PC for report generation or firmware updates. For regulated environments, optional audit trail modules provide immutable logs of all parameter changes, user logins, and profile executions—fully compliant with ALCOA+ principles and supporting 21 CFR Part 11 validation packages.

Applications

• Accelerated aging studies for polymers, composites, adhesives, and elastomers under elevated temperature stress
• ICH-guideline stability testing of pharmaceuticals and biologics across multiple storage conditions (e.g., long-term, intermediate, accelerated)
• Thermal cycling and dwell validation of aerospace components, automotive electronics, and military-grade assemblies
• Controlled-temperature storage and conditioning of reference standards, calibration artifacts, and biological reagents
• Humidity-accelerated corrosion testing of metallic substrates and coated surfaces
• Process validation support for curing, drying, and post-manufacturing thermal treatment steps

FAQ

What is the standard temperature calibration interval for the Lunaire CEO chamber?
Tenney recommends annual NIST-traceable calibration using ISO/IEC 17025-accredited procedures; field verification checks may be performed quarterly using certified reference probes.
Can the Lunaire CEO operate continuously at 180°C?
Yes—the chamber is rated for continuous operation across its full temperature range, including sustained dwell at maximum 180°C, with thermal protection circuits active at all times.
Is humidity control available on all volume configurations?
Humidity capability is optional and fully supported across all four standard sizes; however, low-RH operation (<20% RH) requires the external desiccant dryer add-on.
How is data integrity ensured during power interruption?
The Watlow F4T retains all programmed profiles, logged data, and real-time clock settings via non-volatile memory and onboard battery backup.
Does the system support IQ/OQ/PQ documentation packages?
Yes—Tenney provides vendor-supplied validation templates, URS alignment support, and on-site protocol execution assistance for GxP-regulated installations.