Triad Solutions Dual-Dewar Vacuum Controller Rev 3.2 TC Gauge Torr Cryogenic

Triad Solutions Dual-Dewar Vacuum Controller Rev 3.2 TC Gauge Torr Cryogenic

The Triad Solutions LLC Dual-Dewar Vacuum Controller (Rev 3.2) is a benchtop instrument designed to independently monitor and control the vacuum state of two dewars simultaneously. It provides separate ON/OFF switching for each dewar channel along with a vacuum level readout in torr and millitorr, making it suited for cryogenic laboratory and research environments where maintaining proper vacuum in liquid nitrogen or liquid helium dewars is critical.

Specifications & What's Included

• Manufacturer: Triad Solutions LLC
• Model: Dual-Dewar Vacuum Controller, Revision 3.2
• Form Factor: Benchtop enclosure
• Number of Dewar Channels: 2 (Dewar #1 and Dewar #2)
• Front Panel Controls: Individual ON/OFF pushbutton for each dewar channel (red buttons)
• LCD Display: 2-line alphanumeric display showing Dewar #1 and Dewar #2 status
• Vacuum LED Display: Numeric LED readout with dual range — Torr and Millitorr
• Setpoint Indicators: Below Upper SP and Below Lower SP indicators; Push to Read Setpoints function
• Rear Panel — T.C. Gauge: RJ-style connector for thermocouple vacuum gauge
• Rear Panel — Control I/O: DB15 female connector
• Rear Panel — Power: IEC C14 inlet with integrated rocker on/off switch
• Unit powers on (confirmed); further functional testing was not performed

Applications

Dual-dewar vacuum controllers like this Triad Solutions unit are used in cryogenic laboratory setups where two separate dewar vessels — typically containing liquid nitrogen (LN2) or liquid helium (LHe) — must each be monitored and controlled from a single instrument. Maintaining proper vacuum in the insulating jacket of a dewar is essential for thermal performance; a loss of vacuum causes rapid boil-off of the cryogen. The thermocouple (T.C.) gauge interface connects to a standard Pirani or thermocouple vacuum gauge tube that measures the inter-wall vacuum, while the Control I/O port allows integration with broader system control or automation. This type of instrument is commonly found in physics and materials research labs, NMR and MRI magnet facilities, semiconductor process environments using cryogenic cooling, and any application where multiple cryogen dewars operate in parallel. The dual-range torr/millitorr display allows operators to monitor vacuum across the range from rough to medium vacuum without switching instruments.