Type / No.
Rev.
Date
Page
Total pages
EW082.695_en
5
02 August 2010
23
28
EsiWelma
s.r.l.
4.10 Residual life
The TUS40-20 terminal unit can display the residual operational lifetime of the sensor in
weeks: in figure 4.3 is shown in the sensor monitoring section as Residual life. When the
operational lifetime descends to zero, the sign becomes negative and the system continues
to operate and count down the weeks of operational lifetime but of course there is no
guarantee that the sensor is operating correctly.
4.11 Changing the contrast on the display
Keep the ENTER key pressed down to switch on the sensor
The display will show the following:
Press keys to adjust the contrast to how you want it.
Press ESC to exit and continue with the normal operations of the TUS40-20 terminal
unit.
T a s t i + e -
r e g o l a n o D i s p l a y
Fig. 4.27