Viscometer Technical Notes [.PDF] TN10354 Serial Communications Menus TN11123 VTX423 and D422 Wiring TN11168 Configuring Hyperterminal TN11169 Serial Port Operations TN11171 Installing the VTX423 Sensor TN11172 Installing the D422 Display Recommended Suppliers Technical References Quality CNC machining  Label printing  Prototype and production machining  Topical technical articles Free educational technical training videos [high school and college level] Engineering data Composition and physical properties of alloys Electronic component data sheets O-Ring catalog