- Uniformity, reproducibility
Wind simulation allows achieving minimum temperature variations of the specimen, for accurate and quick temperature changes. Specimen temperature ramp rate is
15°C/min, air temperature ramp rate is
23°C/min.
- Greater temperature ramp control
High precision of the specimen temperature control achieved thanks to a sensor for temperature specimen measurement, and the embedded high-speed controller.
In addition:
- refrigeration capacities increased at low temperatures,
- minimization of the difference between test area and specimen temperatures,
- airflow speed uniformity,
lead to excellent temperature ramp control.
- Selection of the temperature control mode
Two temperature control modes are available:
- A specimen temperature control mode meeting ramp rate conditions of JEDEC standard (15°C/min.)
- An air temperature control mode for temperature cycle tests.
- Free access
Cable ports are equipped on both left and right side, to ease specimen access and wiring.
|
- Specimen temperature ramp control (Example)
| Test conditions |
| High temp. soak |
: +130°C |
| Low temp. soak |
: -45°C |
| Ramp rate |
: 15°C/min. |
| Control point |
: Front center specimen on the lower level |
| Specimen |
: Printed Circuit Board, 145 × 130 mm, 90 pcs. |
| Measurement method |
| 45 specimens placed in two rows on two levels in the specimen basket, with thermocouples attached to the surface of each specimen at the control point. |
|
- Temperature change (Example)
| Test conditions |
| High temp. soak |
: +125°C |
 |
| Low temp. soak |
: -40°C |
| Ramp rate |
: 15°C/min. |
| Control point |
: Air outlet sensor |
| Specimen |
: Printed Circuit Board, 145 × 130 mm, 90 pcs. |
| Measurement method |
| As shown on the right, thermocouples are attached to the specimens at twelve measuring point. |
|
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