VNF Series cryostats—sample in flowing vapor

  • Cooling type: LN2
  • Minimum temperature: 65 K to 77 K (temperatures below 77 K with optional pumping manifold)
  • Maximum temperature: 325 K
  • Sample environment: Flowing vapor
  • Cooldown: 30 min (to 77 K)
  • Sample change time: <10 min
  • Typical stability: ±50 mK (measured with temperature controller)
  • LN2 capacity: 1.2 L
  • Working time (typical): 6 h to 8 h
  • Initial cooldown time (from room temperature): Approximately 30 min
  • Approximate weight: 19 lb (11.5 kg)

The VNF cryostat is an inexpensive liquid nitrogen cryostat offering operating temperatures from 65 K to 325 K. Simple to use and refill, the VPF system uses a refill style displacer assembly and built-in heater to provide variable temperature capability. Temperatures below 77 K are achieved using an optional pumping manifold. High-temperature capability is provided using special sensors and heaters.

Optional window materials can be installed to span the far/mid- IR, VUV, and x-ray regions for a variety of spectroscopic measurements. The refill assembly permits the refilling of the LN2 reservoir without affecting the controlled temperature.

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