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Section 4 User Interface
4.1 Instrument
The 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.
Turning instrument On and Off
There is no power switch for the wall or panel instruments. The mains must be disconnected to
turn the instrument off. The LED indicates when the instrument is on.
Measurement window
The main (numeric) measurement window continuously displays:
• Sensor numeric values
• Measured sensor trends (for the last 10 minute to last hour)
• Measured sensor data alarm limits and other events
• Temperature
4.2 Touch screen
The user interface on the front panel is a 320x240 pixels display with touch screen. To make
navigation user friendly, the interface software is Windows CE based, providing easy selection
through menus.
Touching some items on the display calls a related function, similar to a shortcut.
4.2.1 Function keys on the header bar
Figure 25 Numeric view
All the measurement, configuration, calibration and "standard
service" routines can be called by pressing buttons and menu
bars on screen.
Measurement displays shows one measurement slope.
The display can be configured to only show a sensor
measurement, or to show a parameterized graphic
representation of the last measurements.
Shortcut to the user login window. Pressing this button for more than
2 seconds calls the ID and password window. Refer to Identification
and authorization level on page 43.
• Closed padlock indicates that the touch screen is locked.
• Open padlock indicates that the instrument is in view mode only,
but no user is logged in (level 0).
• When a user is logged in, this box show the authorization level of
this user as 1, 2, 3 or 4 (4 being the highest, refer to User
management on page 92).
This icon is used for adjusting the display brightness to improve
visibility. It is available all the time to any user, regardless of the user
security level. This icon is a shortcut to the backlight adjustment
window. Refer to Screen on page 100.
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