Product Overview
PGT Model 326A Liquid Nitrogen Auto Fill Controller, Sold As-Is for Parts or Repair
Condition
Used and in good cosmetic shape. The External Fill connector on the rear has been removed, leaving an open hole in the panel; testing found no other functional issues. Because of the missing rear connector, this unit is sold as-is for parts or repair. Front markings legible: Princeton Gamma-Tech, LN2 Auto Fill Controller, Model 326A, Ser. 186. Rear markings: Model 326A, Cryostat, Disable Fill, External Fill, Ready to Fill, Filling, Power, Fuse 2ASB, with a hand-written 3.
Ships same or next business day from our Idaho warehouse. Selling online since 1999.
Product Overview
Princeton Gamma-Tech's Model 326A keeps a cryogenically cooled detector topped up with liquid nitrogen. It is built in Nuclear Instrumentation Module (NIM) width to sit in a NIM bin, and it runs from AC power through cords at the rear grommet marked Power: one ends in a three-prong plug, the other in a round connector. The front has Manual Fill and Stop Fill buttons, an Auto and Off mode switch, and lamps for Filling, Overflow Full and Detector Low.
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 Cryostat connector
- Rear BNC connectors for Disable Fill, Ready to Fill and Filling
- Two attached cords at the rear: three-prong plug and a round connector
- Rear fuse, marked Fuse 2ASB
Applications
- Restoring a 326A by fitting a replacement External Fill connector
- Harvesting buttons, lamps, cords and connectors to keep other 326A controllers running
- Studying the fill logic before repairing a lab's own controller
Frequently Asked Questions
What is wrong with it?
The External Fill connector on the rear panel has been removed. Testing found no other functional issues.
Does it run from the NIM bin power?
No. Power comes in through the attached cord with the three-prong plug.
What am I taking on with a parts unit?
A 326A with one rear connector missing and an open panel hole to fill. The photos are of this unit, and the rest of it is as shown. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
Somebody took one connector and left the rest of a working fill controller behind. Fit a replacement in that hole and see how much of a 326A you get back.
