65D pump has 1/4" F-250 fittings for secure high-pressure connections.    * Rugged single-ratio drive train has auto-lubricating gears to assure long life and low maintenance.   * Each Isco D-Series syringe pump is bench tested at the factory.   * Exclusive "Smart Key" controller. All Isco D-series pumps use the same controller that can operate any four pump modules, either independently or together. Operating modes include: 

Single pump independent constant flow or pressure     Single pump flow - or pressure - ramp programming     Single pump dispensing    Dual pump continuous constant flow or pressure    Dual pump concentration gradients     Three-pump configured systems      * RS-232/485 serial interface for computer control or monitoring of operating parameters.    * Redundant safety is designed in. All D-Series pumps have mechanical and electrical fail-safes, in addition to the factory default or user-set limits.    * Corrosion resistance. Nitronic 50 - the standard material for cylinders, pistons, and caps - is an austenitic stainless steel with outstanding strength and corrosion resistance.    * Standard seals are heavy-duty, graphite-impregnated Teflon, providing very long life under harsh operating conditions.