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Thermo Fisher Scientific

Home the ASXpress Valve


How to home the ASXpress Valve


  • ASXpress


1 Power down the ASXPRESS PLUS electronics module, unplug any USB cables from the electronics module, and wait a few seconds.
2 Power up the electronics module and plug in the USB cables.
3 Start the Xpress Configuration Tool and make sure it is communicating with the electronics module.
4 Expand the GUI using the arrow button on the right side of the window.
5 Repeatedly click Load then Inject to switch the valve between each state.
6 If the valve is out of sync, the switching noise will start out longer, but then get shorter when the valve is synced up properly.


When experiencing an error such as "Valve Switching Error", it is a good first step to home the valve


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