- Uniformity, reproducibility
Wind simulation allows achieving minimum temperature variations of the specimen, for accurate and quick temperature changes. Specimen temperature ramp rate is 15C/min, air temperature ramp rate is 23C/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 (15C/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 | : +130C | Low temp. soak | : -45C | Ramp rate | : 15C/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 | : +125C | | Low temp. soak | : -40C | Ramp rate | : 15C/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. | | |