2 ST4000 PlusWheel & Tiller AutopilotsOwner’sHandbookï Dockside rudder calibration feature, which automaticallydetermines the characteristics of your installation, and adjusts forthem, before you set sailï Raytheon CodeLock security support1.2 Extended systemsThe ST4000 Plus is compatible with other Raytheon SeaTalkinstruments. Additional fixed and hand-held SeaTalk autopilot controlunits can be connected at secondary steering and control positions.A rudder reference unit can be fitted as an optional extra, and willimprove the wheel pilotís performance. It is especially recommended ifthere is significant backlash in the steering system, or optimumperformance is required from a mechanical or cable steering system.Note: You MUST fit a rudder reference if the ST4000 Plus is installedon a hydraulic steering system.1.3 Specificationï Power Supply: 10 to 15†V dcï Drive mechanism: Wheel or Tiller, low current FET driveï Current consumption:Standby: 60†mA (less than 200†mA with full lighting)Auto: between 0.5†A and 1.5†A depending on drive type, boat trim,helm load and sailing conditionsï Operating temperature: 0∞C to +70∞C (32∞F to 158∞F)ï Eight button illuminated digital keypadï LCD display of heading, locked course and navigational data, withthree levels of illuminationï Input connections for SeaTalk, power, fluxgate compass, rudderreference unit and NMEAï Output connections for SeaTalk and motor drive
