39Section 4 User Interface4.1 InstrumentThe instrument front panel provides these user interfaces:• A touch screen acting as display, touch pad and keyboard. Contrast can be adjusted.• A LED, showing when the instrument is on.• A buzzer which sounds each time the screen is touched, and when an event alarm is set.Sound level and type can be adjusted.Turning instrument On and OffThere is no power switch on the instrument. The mains must be disconnected to turn theinstrument off. The LED indicates when the instrument is on.Measurement windowThe main (numeric) measurement window continuously displays:• Sensor numeric values• Measured sensor trends (for the last 10 minutes to last hour)• Measured sensor data alarm limits and other events• Temperature4.2 Touch screenThe user interface on the front panel is a 320x240 pixels display with touch screen. To makenavigation user friendly, the interface software is Windows CE based, providing easy selectionthrough menus.Touching some items on the display calls a related function, similar to a shortcut.Figure 22 Numeric viewAll the measurement, configuration, calibration and "standardservice" routines can be called by pressing buttons and menubars on screen.Measurement display shows one measurement slope.Display can be configured to only show a sensormeasurement, or to show a parametrized graphicrepresentation of the last measurements.
