Barnstead 47900 Operation Manual

Barnstead 47900 Operation Manual Manual pdf 16 page image

16FunctionsThis type of controller has single ramp and dwellprogramming capabilities. The Ramp and Dwellcan be configured to five different modes.1. Mode 1 (Opt. 1) is a Ramp (if needed) tothe Setpoint temperature, a Dwell, andthen a cool down.2. Mode 2 (Opt. 2) is the same as mode 1,except the controller continues to heat atthe Setpoint after the Dwell has complet-ed. (This mode does not cool down.)3. Mode 3 (Opt. 3) is the same as mode 1,except the Dwell time includes the Ramp(if needed).4. Mode 4 (Opt. 4) is the same as mode 2,except the Dwell time includes the Ramp(if needed).5. Mode 5 (Opt. 5) is a Dwell (delay time)before the controller Ramps (if needed)to the Setpoint temperature.Setting Variables• The Manual or Automatic modes can beset by changing “m-A” variable to “mAn”or “Auto.” (The Manual mode will keepthe controller from heating without settingthe Setpoint temperature below theActual temeperature. The Automaticmode will allow the controller to heat tothe Setpoint temperature. (The controllershould be left in the Automatic modeexcept when programming.)• A program mode can be set by changingthe “tm.OP” variable to “Opt. 1, Opt. 2,Opt. 3, Opt. 4, or Opt. 5.Single Ramp & DwellNoteThese instructions are used with the Single Setpoint models with OTP only(See models listed on front page).Mode 1 (Opt. 1)Mode 2 (Opt. 2)Mode 3 (Opt. 3)Mode 4 (Opt. 4)Mode 5 (Opt. 5)