Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 307)

5 Troubleshooting – Maintenance
PC Control / Touch Control
295
5.2 Diagnosis
You can carry out selective tests on the Titrando system or trigger
special functions.
Select Diagnosis in the System menu:
The diagnosis functions are written in English and are all available for
the Touch Control. With PC Control the selection is limited to those
functions marked with an *.
5.2.1 LCD test
With the LCD test you can check the function of the Touch Control
display.
Press [LCD test]. The whole screen appears in white.
Continue with [START] to show further colors and patterns. You can
use [Back] to switch back step by step.
Check whether the display has any pixel errors or other
irregularities. If this is the case please contact your local Metrohm
agency.
You can exit the LCD test automatically by switching through to the
end with [START]. It can also be exited at any time with [Home].
5.2.2 Temperature monitoring (Temperature control)
The operating temperature of the Titrando Temperature TI is
measured inside the housing.