The TestEQ ETS-series thermal shock test chamber exposes a specimen to abrupt transitions between hot and cold zones to evaluate thermal shock resistance. A two-zone or three-zone layout is selected according to whether the specimen can be moved during the test.

Applications
- Semiconductors, ICs and electronic components
- PCB assemblies and solder joints
- Automotive electronics and EV power components
- Aerospace, defense and communication equipment
- New materials, glass, ceramics and composites
- Batteries and power modules
Two-zone and three-zone designs
- Two-zone system: the specimen basket moves vertically between a pre-heated zone and a pre-cooled zone. Basket transfer time is ≤ 10 seconds, and temperature recovery is within specification typically in ≤ 5 minutes.
- Three-zone system: hot, cold and ambient zones are separate; the specimen can be kept stationary while air is switched between zones. Transition time is ≤ 3–10 seconds and mechanical stress from basket movement is eliminated.
- The three-zone layout favours precision electronic assemblies, semiconductor devices and aerospace components where repeatability and data consistency are important.

Configuration and features
- Temperature range -70 °C to +200 °C.
- Preheating range +60 °C to +200 °C; heating rate +60 °C to +200 °C ≤ 20 min.
- Cooling rate from +20 °C to -70 °C ≤ 30 min.
- Fast temperature transition and controlled recovery support repeated thermal shock cycling (>2000 cycles of continuous testing on supported configurations).
- PID control with touchscreen programming and RS-485 communication.
- Options include the number of basket positions, load capacity and test fixtures, selected against the specimen and load profile.
Specifications
| Parameter | Value |
|---|---|
| Temperature range | -70 °C to +200 °C |
| Transition (basket transfer) time | ≤ 10 s (two-zone); ≤ 3–10 s (three-zone) |
| Temperature recovery | within specification, typically ≤ 5 min |
| Preheating range | +60 °C to +200 °C |
| Heating rate (+60 → +200 °C) | ≤ 20 min |
| Cooling rate (+20 → -70 °C) | ≤ 30 min |
| Control | PID, touchscreen, RS-485 |
Model designations include the ETS series (for example ETS200-40W, ETS200-55W); the final specification depends on chamber model, transition requirement and test load.

Standards
Chambers can be configured for test programs based on MIL-STD-810H Method 503.7, IEC 60068-2-14, JESD22-A104, GJB150.5A-2009 and ISO 16750.
To select a two-zone or three-zone configuration, contact us with the specimen, required temperature range and transition requirement. Related: Rapid Temperature Change Chamber, High and Low Temperature (Humidity) Test Chamber.