20. TROUBLESHOOTING
The unit does not switch on (the power LED on the main board
is switched off ).
When switching on, there are general problems with the LCD
(strange characters, blank display).
Erroneous readings of the input signals.
Ps = (Vmed/100 - 0.004) x (FSmax - FSmin) / 0.016 + Fsmin
Example
Ps = (1.0/100 - 0.004) x [7 - (-0.5)] / 0.016 + (-0.5) = 2.3 bar
To check the setting of the probe inputs.
Unusual alarm signal from the digital input.
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