Operation Page 5-6Viewing Calibration StatusPressing the Status button (or the F8 key on an externalkeyboard) or selecting "Status" from the main menu will cause astatus screen to be displayed. The status screen is alsodisplayed automatically when a manual calibration is started.The status screen presents information about the calibration inprogress, such as the control and monitor values of the flowcontrollers, temperature controllers and ozone generator, thestates of the solenoid valves and calculated values such astotal flow and diluted gas concentrations.There are four main status screens: Idle, Dilution, Ozone andGPT (see Figure 5-4, Figure 5-5, Figure 5-6, and Figure 5-7).If the Permeation Oven or Photometer options are installed,status screens for these devices will also be available. Thetype of status screen that is displayed depends upon the type ofsequence that is currently active.At the top of each status screen are selection buttons whichallow the status information to be presented in eitherengineering units or voltage units. To select a differentdisplay mode, press one of the arrow buttons and then pressEnter to select. An easier method is to simply press the F6 keyto toggle between engineering and voltage units.Following are examples of the main types of status screens:Figure 5-4 The Idle Status Screen