Liquid Level Switch measures liquid nitrogen/oxygen.

Press Release Summary:

Pointsense(TM) Model LL-108 miniature ultrasonic switch, suited for cryogenic temperatures down to -400°F, incorporates ultrasonic technology and 1000:1 wet to dry ratio, and permits operation regardless of viscosity or aeration. Construction consists of 316SS sensor body with hermetically sealed epoxy tip and integral, miniature epoxy encapsulated electronic control unit that is mounted in cast aluminum, explosion-proof, watertight NEMA 4/7 enclosure.

Original Press Release:

Ultrasonic Cryogenic Temperature Liquid Level Switches

Cosense Inc. has announced the introduction of a series of miniature Ultrasonic Liquid Level Switches for cryogenic temperatures down to -400° F. The liquid level switches, designated Pointsense(TM) Model LL-108 is designed for use in liquid nitrogen and liquid oxygen for level measurement. Proven ultrasonic technology and an extremely high wet to dry ratio (1000:1 nominal), the Pointsense(TM) cryogenic liquid level switch permits operation regardless of viscosity or aeration. The miniature size of the units and standard ¾" NPT mounting fitting makes it ideal for new applications as well as replacement systems in existing installations. The Pointsense(TM) switches consist of a 316SS sensor body with a hermetically sealed epoxy tip and an integral, miniature epoxy encapsulated electronic control unit that is mounted in a cast aluminum, explosion proof, watertight NEMA 4/7 enclosure. Repeatability of measurement is ± 1mm typically. Operating power is 115/230VAC, 50/60hz with 12 or 24VDC optional. Output is available in 10Amp relay contacts or loop power two wire. Cosense manufacturers a broad line of ultrasonic instrumentation for control of liquid level, flow, product identification, and robotics applications for domestic and worldwide markets. For further information, please contact Lori Marando, Cosense Inc., 155 Ricefield Lane, Hauppauge, NY 11788.