The TestEQ ESS test chamber applies controlled temperature cycling and rapid temperature transitions to production units in order to expose latent manufacturing defects before shipment. Environmental stress screening complements functional test by stressing every unit, or a defined sample, with a repeatable profile. The temperature chamber model series is the ET series, and rapid-change ESS configurations use the EATH series.
Applications
- Production screening for latent manufacturing defects
- Manufacturing quality control and early-failure screening
- Electronics, PCB assemblies and modules
- Automotive and EV electronics
- Components requiring a defined screening profile
Configuration and features
- Temperature range -70 °C to +180 °C.
- Temperature change rate 5 °C/min to 25 °C/min (optional); common rates are 5, 10, 15 and 20 °C/min.
- Temperature fluctuation ≤ ±0.5 °C; temperature deviation ≤ ±2.0 °C; temperature uniformity ≤ 2.0 °C.
- Airflow 198 / 260 / 472 L/Sec (Cold Fusion) depending on model.
- Humidity and other environmental stresses can be combined depending on the screening program.
- Popular screening ranges: -40 °C to +85 °C; -45 °C to +85 °C (+125 °C); -55 °C to +85 °C (+125 °C) for military-level requirements.
- Capacity 100 L to 12,000 L.
- Pump water supply; water tank capacity 25 L or 40 L.
- Patent No.: CN201920954255.X.
Specifications
Model range (EATH series)
| Model | EATH225-40 | EATH225-70 | EATH408-40 | EATH408-70 | EATH1000-40 | EATH1000-70 |
|---|---|---|---|---|---|---|
| Capacity (m³) | 0.245 | 0.245 | 0.408 | 0.408 | 1.0 | 1.0 |
| Interior W×H×D (mm) | 700×700×500 | 700×700×500 | 700×800×730 | 700×800×730 | 1000×1000×1000 | 1000×1000×1000 |
| Exterior W×H×D (mm) | 900×1680×1300 | 900×1680×1300 | 900×1780×1500 | 900×1780×1500 | 1200×1980×1700 | 1200×1980×1700 |
| Temperature range | -40 to +180 °C | -70 to +180 °C | -40 to +180 °C | -70 to +180 °C | -40 to +180 °C | -70 to +180 °C |
| Airflow | 198 L/Sec | 198 L/Sec | 260 L/Sec | 260 L/Sec | 472 L/Sec | 472 L/Sec |
| Window W×H (mm) | 300×360 | 300×360 | 300×360 | 300×360 | 380×520 | 380×520 |
| Noise heating / cooling (dB) | 49 / 65 | 49 / 68 | 49 / 65 | 49 / 68 | 49 / 67 | 49 / 68 |
Common specifications
| Parameter | Value |
|---|---|
| Temperature fluctuation | ≤ ±0.5 °C |
| Temperature deviation | ≤ ±2.0 °C |
| Temperature uniformity | ≤ 2.0 °C |
| Temperature change rate | 5–25 °C/min (optional); common rates 5, 10, 15 and 20 °C/min |
| Temperature change range | -40 to +85 °C (popular); -45 to +85 °C (+125 °C); -55 to +85 °C (+125 °C, military level) |
| Humidity range (%RH) | 10–98 %RH |
| Humidity uniformity | ±1.0 %RH |
| Relative humidity deviation | ≤ +2.0 to −3 %RH (>75 %RH); ≤ ±5.0 %RH (≤75 %RH) |
| Water supply | pump supply |
| Water tank capacity | 25 L / 40 L |
| Power | AC380V, 3 phase 5 lines, 50/60 Hz |
| Capacity | 100 to 12,000 L |
| Patent No. | CN201920954255.X |
The humidity indicator applies to humidity-configured chambers. Ramp-rate performance depends on chamber size, test range, specimen mass, fixture design and test conditions.
Standards
ESS programs are commonly aligned with JESD22, IEC 60068, MIL-STD-810 and MIL-STD-883, and with thermal-cycling requirements such as JESD22-A104, IEC 60068-2-14, AEC-Q100 and ISO 16750.
To define a screening profile and throughput, contact us with the unit, defect history and required stress level. Related: HALT / HASS Test Chamber , Rapid Temperature Change Chamber .