The probe tube is manufactured from stainless steel and contains a superconductive wire. When an electric current flows, the portion of the wire above the liquid surface remains resistive while that below is superconducting. A measure of the voltage across the wire indicates the fraction of the wire above the surface.
Probe diameter: 4.8mm • Active length: Specify at time of order (max 840mm) • Static Boil off: 4ml/hr • 150 sec low boil off: 5ml/hr • 10 sec high boil off: 25ml/hr • Continuous: 150ml/hr • Magnetic field tolerance: minimal effect up to 4T • Probe temperature tolerance: +1K at 4.2K
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