1.5
Figure 1.2 Xentra measurement display
Figure 1.3 Xentra process variable format
1.5.1 The xentra measurement display
The measurement display is the default display that is presented to the user of the
xentra 4900. The display can be user configured to show the gas concentrations
measured by the gas sensor modules fitted and/or the external analogue inputs. The
status of the instrument plus the occurence of an alarm or fault active are also
displayed on the measurement display via icons positioned at the bottom of the screen.
The contents of the measurement display are shown in figure 1.2.
Each measured value on the display is known as a process variable and consists of
four fields as shown in figure 1.3.