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The SIRAX series represents the climatic-altitude testing solution within the DOT range, designed to perform combined environmental tests involving temperature, humidity and pressure, with simulation of high-altitude operating conditions up to 45,000 metres.
Each chamber is designed and configured according to the required test conditions, the dimensions and characteristics of the test specimens, thermal loads, target pressure levels and the specific requirements of the application.
Coordinated control of temperature, humidity and pressure makes it possible to reproduce real or extreme environmental conditions, ensuring high levels of precision, stability and repeatability during both static and dynamic test cycles.
is designed to ensure:
- customised design and configuration;
- combined control of temperature, humidity and pressure;
- high-altitude simulation up to 45,000 metres;
- programming of static and dynamic climatic and altitude cycles;
- coordinated management of temperature and pressure variations;
- high stability and uniformity of test conditions;
- precision and repeatability of results over time;
- integration with test benches, data-acquisition systems and dedicated equipment;
- configuration of specific interfaces, interlocks and safety devices;
- supervision, data logging and remote management through DOT technology.
It is one of the most advanced solutions within the DOT range, particularly suitable for laboratories, testing centres and research and development departments operating in the aerospace, defence, avionics, energy, advanced electronics and scientific research sectors.
The customised design allows each chamber to be configured according to the required temperature, humidity and pressure ranges, parameter change rates, thermal loads, applicable standards and the specific characteristics of each project.
- Available usable volumes: 504 L and 1,000 L;
- temperature configurations: −40 °C / +150 °C and −70 °C / +150 °C;
- relative humidity range: 20% to 98% RH;
- altitude simulation: up to 45,000 m;
- temperature uniformity: ±2 °C;
- temperature fluctuation: ±0.5 °C;
- humidity accuracy: ±3% RH;
- temperature change rate: ≥ 3 °C/min;
- pressure accuracy: ±1 mbar;
- vacuum system: rotary mechanical pump;
- refrigeration system: multistage;
- cooling: water-cooled;
- test compartment: AISI 304 stainless steel;
- control system: DOT AltitudeClimaLogic;
- supervision software: DiDrus;
- connectivity: Ethernet, RS485, USB.
Available Models
| MODEL | USABLE VOLUME | INTERNAL DIMENSION | TEMPERATURE RANGE |
| SIRAX 504-40 | 504 L | 700 × 900 × 800 mm | −40 °C / +150 °C |
| SIRAX 1000-40 | 1.000 L | 1.000 × 1.000 × 1.000 mm | −40 °C / +150 °C |
| SIRAX 504-70 | 504 L | 700 × 900 × 800 mm | −70 °C / +150 °C |
| SIRAX 1000-70 | 1.000 L | 1.000 × 1.000 × 1.000 mm | −70 °C / +150 °C |
Configurable Data
The values shown represent reference technical configurations. Volumes, dimensions, temperature and humidity ranges, altitude performance, parameter change rates, refrigeration system and interfaces can be adapted according to the required test conditions, the test specimen and the specific requirements of the project.
Options and Accessories
heated observation window
KF side feedthroughs for cables, sensors and fluids
KF-class test terminals / columns
internal specimen racks (2 sets)
internal video monitoring system
additional temperature and pressure sensors
advanced vacuum safety systems
certified calibration
integration with customer systems
Standards Compliance
The SIRAX chamber is designed for testing in compliance with major international standards, including:
MIL-STD-810H ↔ IEC 60068-2
MIL-STD-883 ↔ IEC 60749
RTCA DO-160 ↔ EN 60068 / EN 61000
Positioning within the DOT Range
SIRAX completes the DOT range, complementing traditional climatic test chambers and enabling combined climatic and altitude testing within a single solution.
It is the ideal choice when altitude simulation becomes a critical test parameter.
