Error Messages
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
501 501 Valve Defect Error
The valve fails during operation, e.g. due to a damaged piezoelectric element.
Important note!
If there is a valve error, while a maintenance is needed (according to warranty and
maintenance document), the message “Maintenance needed” is shown in the display.
or
• Switch off the MDC, remove the valve and send it to
VERMES Microdispensing or to your supplier (regular
maintenance is advisable)