Temperature Humidity Vibration Three-Combination Test Chamber

Product Name

Temperature-humidity-vibration three-combination test chamber / three-combination tester / vibration temperature-humidity combined test chamber

Application

The temperature-humidity-vibration three-combination test chamber is suitable for aerospace products, information and electronic instruments, materials, electrical and electronic products, and various electronic components, to test their performance indicators under temperature, humidity and vibration environments.

Chamber Structure

• Main body: the outer shell is made of high-quality A3 steel plate with powder coating; the inner shell is high-grade stainless steel mirror plate; the insulation medium is ultra-fine glass fiber wool;
• Circulation mode: centrifugal fan blades supply air from the top and return air from the bottom;
• Double-layer high-temperature-resistant high-tensile sealing strips between the door and the chamber ensure a tightly sealed test area;
• Non-reactive door handle for easier operation;
• High-quality lockable PU casters at the machine bottom;
• The observation window is multi-layer hollow tempered glass with an inner laminated conductive film (clear observation of the test process);
• Cable port (left side of the machine) for external test power or signal cables (Ø50mm);
• Guide rails under the working chamber allow the vibration table to move in and out (moved out when no vibration test is performed);
• The connection between the vibration table and the bottom of the working chamber uses a multi-layer alternating epoxy resin and high-temperature silicone rubber plug-in connection for sealing;
• The heating system uses a fin-type stainless steel heater with far-infrared nickel-chromium alloy wire heating elements;
• The two systems are controlled independently without mutual interference;
• The air circulation system uses a low-noise motor and multi-blade centrifugal blower with single circulation.

Refrigeration System

• The refrigerator uses original French “Tecumseh” fully hermetic compressors;
• The refrigeration system adopts a single-unit or binary low-temperature circuit design;
• US “ALCO” filter drier, Taiwan “Guanya” oil separator, Italy “Castel” solenoid valve;
• Multi-blade blower provides strong circulation, avoiding any dead zone and ensuring uniform temperature and humidity distribution in the test area;
• Supply and return air path design meets test standards for air pressure and velocity, with fast temperature/humidity recovery when the door is opened;
• Heating, cooling and humidification systems are fully independent, improving efficiency, reducing test cost, extending service life and lowering the failure rate.

Technical Parameters

Protection System

• Overall equipment over-temperature
• Overall equipment phase-loss / phase-reversal
• Refrigeration system overload
• Refrigeration system over-pressure
• Overall equipment timer
• Other protections: earth leakage, operation indication, automatic shutdown after fault alarm
• Vibration overheat protection
• Vibration over-current protection
• Vibration over-voltage protection
• Vibration controller “zero” position protection
• Vibration over-displacement protection

Control System

• Intelligent dual-channel high-precision digital PID microcomputer controller (directly displays humidity percentage without temperature-humidity conversion tables)
• Membrane KEYBOARD
• Power-failure memory function: after power restoration the remaining test process can continue
• Temperature control uses P·I·D + S·S·R with same-channel coordinated control, improving the stability and service life of control components and interface
• Touch-type setting, digital and direct display
• PID auto-tuning function reduces the inconvenience of manual setting
• Warning signals are provided if errors occur during operation or setting
• Power-failure record retention for 5 years
• France “Schneider” components

Vibration System

• Vibration generator: uses winding adhesive from Japan ThreeBand, excitation temperature sensor from Japan IMV, stainless steel mesh plate for the voice coil from Japan Tobu Works, and a low-noise fan;
• Switching power amplifier: uses Siemens switches and contactors, Japan Sanyo power modules, US Motorola power amplification devices, Japan Fuji Electric power modules and ultra-fast fuses for protection;
• Digital vibration controller main configuration: DSP interface box (built-in 2-channel charge amplifier), industrial computer CPU PIV 2.0G, 256MB memory, 60GB hard disk, 52X CD-ROM drive, 17-inch flat monitor; piezoelectric acceleration sensor (CGJ-1 type);
• Software: (imported US version) sine vibration control system, random vibration control system, classical shock vibration control system; color inkjet printer with accessory cables.

Standards

GB/T 2423.1-2001, GB/T 2423.2-2001, GB/T 2423.3-93, GB/T 2423.10-99 and JJG 190-97