Product Overview
Princeton Gamma-Tech Model 326A Liquid Nitrogen Auto Fill Controller, AC Line Powered with Outlet Cord
Condition
Used and in good condition. It was visually inspected and tested: it powers on and switches as expected. Front markings legible: Princeton Gamma-Tech, LN2 Auto Fill Controller, Model 326A; rear: Model 326A, Cryostat, Disable Fill, External Fill, Ready to Fill, Filling, Power. The unit pictured is representative of stock.
Ready to ship from our Idaho warehouse the same or next business day. Selling online since 1999.
Product Overview
Princeton Gamma-Tech's 326A watches a detector's liquid nitrogen supply and fills it, so a germanium detector stays cold without someone standing by the dewar. It is a Nuclear Instrumentation Module (NIM) width module that sits in a NIM bin and takes AC power through its own cord. A second attached cord ends in a three-slot outlet. Fill status shows on Filling, Overflow Full and Detector Low lamps, and the Manual Fill and Stop Fill buttons let you override the automatic cycle.
Key Features
- Mode switch, Auto and Off, with a lamp for each
- Manual Fill and Stop Fill pushbuttons
- Filling, Overflow Full and Detector Low lamps
- Rear Amphenol Cryostat connector
- Rear BNC connectors: Disable Fill, External Fill, Ready to Fill, Filling
- Two attached cords: one with a three-prong plug, one ending in a three-slot outlet
Applications
- Automating overnight and weekend LN2 fills on an HPGe gamma spectrometer
- Replacing a failed 326A on an existing dewar and cryostat setup
- Tying fill status into other lab electronics through the rear BNC lines
Frequently Asked Questions
Has it been powered up?
Yes. It powers on and switches as expected.
Does it need NIM bin power?
No. It runs from AC through the attached cord with the three-prong plug.
Is the cryostat cable included?
Not included.
Will the cryostat cable from my old 326A plug into it?
Yes. The rear panel is marked Model 326A and carries the same round Amphenol Cryostat socket, so a cable made for a 326A mates with it. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
Germanium detectors only work cold, and liquid nitrogen keeps leaving. Hook this box to the dewar and stop setting alarms for the weekend fill.
