Overview

The TSA Series thermal shock chambers are engineered for high-performance thermal shock testing, combining rapid temperature cycling, environmental responsibility, and user-friendly operation. They support continuous testing with optional defrost-free operation and maintain precise temperature uniformity to ensure reliable test results.

Key Specifications and Features

• Continuous Testing: Optional defrost-free operation allows up to 1000 consecutive cycles (500 hours) without defrosting, reducing downtime and power consumption.
• Temperature Control: Rapid temperature rise/fall and recovery times (as low as 5 minutes for two-zone chambers) enable efficient testing cycles.
• Temperature Uniformity: Side-flow air system maintains specimen temperature within ±1.0 to ±1.5°C for consistent thermal stress application.
• Environmental Considerations: Use of ozone-safe HFC refrigerants, recyclable materials, noise levels below 65 dB, and reduced electrical load to minimize environmental impact and facility stress.
• Compact Design: Space-saving chamber layouts optimize laboratory footprint.

Performance Enhancements

• Defrost-Free Operation: Patented chamber design prevents frost formation by blocking outside air ingress, enabling uninterrupted testing.
• Improved Recovery: Enhanced temperature recovery shortens cycle times to 5–10 minutes depending on model.
• Conductor Resistance Evaluation: Optional integrated system for continuous electrical resistance measurement during thermal cycling with automatic data logging.

Control and Monitoring Options

• Specimen Temperature Control: Sensor-based control monitors specimen temperature directly, improving test accuracy and reducing trial runs.
• Trigger Function: Dual sensors initiate exposure timing upon reaching preset specimen temperatures for precise test control.
• Data Recording: Optional paperless recorders store multiple temperature data points on memory cards for easy management.
• User Interface: Color LCD touch-screen with interactive menus, real-time monitoring, alarms, service guides, and test resume/restart capabilities.

Safety Devices

• Leakage and circuit breakers matched to voltage specifications (200, 220, 380, 400/415V AC).
• Door switches for electric compartments and test areas.
• Temperature switches and overheat protectors for both high and low temperature chambers.
• Refrigeration system protections including high/low pressure switches, compressor protectors, and relays.
• Additional safety components such as motor temperature switches, air pressure switches, fuses, and emergency stop switches.

Accessories and Options

• Specimen baskets made of stainless steel mesh with varying sizes and load capacities.
• Shelf brackets, cartridge fuses, cable port plugs, and water-cooled system components.
• Temperature recorders (digital and paperless) with multiple pen/dot configurations.
• Specimen temperature monitoring with trigger functions for defrost-free continuous operation.
• Auxiliary cooling injectors (CO2 or nitrogen) to accelerate temperature recovery.
• Automatic vertically sliding doors with safety sensors.
• Communication interfaces including GPIB, RS-232C, and RS-485 for remote monitoring and control.
• Mobility casters, heavy-duty shelves, dew trays, exhaust ducts, and floor fixtures for installation flexibility and safety.

Performance Models and Naming Convention

• Standard Performance (S Type): Capacities from 40L to 300L, air- or water-cooled, with high, standard, or light performance levels.
• Light Performance (L Type): Similar capacities and cooling options, designed for less demanding applications.
• Model Naming: TSA-<Capacity>-<Performance>-<Condenser Type> (e.g., TSA-101-S-A for 110L standard air-cooled).

Test Conditions and Best Practices

• Follow specified ambient temperature, humidity, cooling water temperature, power voltage, and sensor placement for accurate specimen temperature control.
• Use recommended safety devices and accessories to ensure operational safety and reliability.
• Install water leak detectors for water-cooled condensers on upper floors to prevent damage.
• Utilize communication interfaces and data recorders for comprehensive data acquisition and remote monitoring.
• Consider auxiliary cooling injectors to reduce temperature recovery times during low temperature exposures.
• Employ automatic doors and emergency stop switches to enhance safety and convenience.

Thermal Shock Chamber Models Overview

• TSD Model: Two-zone chamber compliant with MIL-STD-883 and other standards; temperature zones +150°C/-60°C; 15-minute recovery time; excellent temperature uniformity and specimen temperature monitoring.
• TSE Model: Compact two-zone chamber for small specimens; temperature zones +150°C/-65°C; 5-minute recovery time; no auxiliary cooling; HFC refrigerant.
• TSB Model: Liquid-to-liquid chamber for higher thermal stress; compact footprint; reduced brine consumption; simplified operation with touch-screen interface.
• TSA-2201-W: Large capacity (~2200L) chamber for large/heavy specimens; top-mounted high-temp and rear low-temp chambers; ergonomic design for loading/unloading.

Environmental and Operational Considerations

• All models use environmentally friendly HFC refrigerants that do not deplete the ozone layer.
• Design improvements reduce operational costs, such as lower brine consumption in liquid-to-liquid chambers.
• User-friendly interfaces with color LCD touch-screens facilitate ease of operation.

Summary

The TSA Series thermal shock chambers provide reliable, precise, and environmentally responsible solutions for demanding thermal shock testing. Their advanced features—including defrost-free operation, rapid temperature cycling, specimen temperature control, and integrated data systems—make them suitable for a wide range of applications from small components to large automotive parts. Comprehensive safety devices, accessories, and communication options support safe, efficient, and flexible operation.