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DESCRIPTION

The HCP421V-ELP vacuum tight plate is designed for ellipsometry applications where both thermal and atmospheric control is critical. Using a silver heating and cooling block, this plate provides a wide temperature range with precise thermal uniformity. This vacuum-tight configuration can be both gas purged and evacuated to low pressures to protect sensitive samples from moisture and oxygen as well as to study vacuum processes such as freeze drying.

THERMAL FEATURES

Temperature Control	mK2000 with programmable precision switching PID method
Thermal Block	Silver
Sample Thermal Cover	Optional removable Inner sample cover with additional window
Temperature Minimum	-190°C (with optional liquid N2 cooling)
Temperature Maximum	400°C
Temperature Sensor	100 Ω Platinum RTD
Maximum Heating Rate	+150°C per minute at 100°C
Maximum Cooling Rate	-50°C per minute at 100°C
Minimum Heating and Cooling Rate	±0.01°C per minute
Temperature Resolution	0.01°C
Temperature Stability	±0.05°C (>25°C), ±0.1°C (<25°C)
Power supply	Universal power input
Software	Windows compatible software to record and export temperature-time data; remotely control system via VCP connection (Virtual Comm Port)

OPTICAL FEATURES

Optical access	Reflection only
Optical windows	Removable and exchangeable windows permit full-spectrum transparency
Minimum Objective Working Distance	13.2 mm
Top Window	Ø27 mm
Incident light angle	70.0° from normal
Emergent light angle	70.0° from normal
Window Defrost	Integrated external window defrost

Sample Area	Ø30 mm
Chamber Height	4.3 mm
Atmosphere Control	Vacuum-tight chamber
Frame Cooling	Integrated frame cooling with optional chiller system
Mounting	Horizontal capability
Frame Dimensions	97 mm x 84 mm x 36.5 mm
Weight	600 g