The disclosed technology relates to a process for conducting a chemical reaction between at least one liquid reactant and at least one gaseous reactant in a process microchannel containing at least one catalyst, the catalyst comprising a solid phase catalyst or a homogeneous catalyst immobilized on a solid. One embodiment includes a method of sending a message over an alternate channel to a mobile device in the presence of an open TCP connection with a mobile device, including sending the message over the alternate channel to the mobile device, without utilizing the open TCP connection, responsive to determining that a timing criteria has been met. By feeding inspection signals independent from each other to source lead inspection lines while maintaining source-side switching elements in an ON state, any short circuit between adjacent ones of source lines and the like can be detected.