Programmable Vacuum Pump Controller

KNF's Model UNC800 (formerly PU842) Vacuum Controller gives you complete control of the evaporative process. Select your preset levels with the touch of a button.  It prevents foaming and boiling, and vents instantly when needed.
Unlike other brands, this controller has no metal components in the gas stream, avoiding expensive off-site repairs. The Kalrez valve system is completely accessible from the rear of the unit for a quick on-site cleaning, if necessary, using a screwdriver. More details on features below.

UNC800 Controller Advantages

Reliable, Maintenance-free Operation
We use only premium, corrosion-resistant polypropylene and Kalrez® resin in contact with the gas stream - there are no metal (stainless steel) parts in the gas stream to corrode or replace. The UNC800 is designed to be virtually maintenance-free. All wetted components are easily accessed from the outside for occasional cleaning, using only 3 screws.

Maintains Accurate Control Throughout Your Process
The UNC800 maintains system vacuum precisely (to within ±0.2%) wherever you need it, for the duration of your evaporative process. The 12-bit microprocessor electronics is user-friendly and completely configurable.

Get Repeatable, Consistent Results
You are in complete control. Non-volatile memory remembers up to five vacuum settings  — move between them during each processing step — there’s no more guesswork. The UNC800 helps avoid foaming and boiling. Store settings for routine solvents, daily projects or even for users on different shifts.

Includes Many Features Not Found on other Controllers
Instant purge and vent control. Auto set point selection. Auto short-cycle compensation, and more, all at your fingertips and included in the UNC800. Because we listened to extensive, in-lab focus groups that included users like yourself, it’s easy to use — and it’s priced right, too!

Easy Setup and Cleanup in Minutes
Simply connect the UNC800 barbed tubing ports to the vacuum pump and to the vacuum system using 3/8" ID tubing. Plug your KNF vacuum pump into the rear of the controller and plug the controller into a wall outlet. It's that easy. No outboard valves, wires or bolted connections to contend with. All cleanable parts are easily accessed from the exterior of the cabinet by removing only 3 screws.