sFTP adapter

Hi Experts,

I am trying to use sFTP adatpter in place of file FTP adapter.I did all the configuration required for sFTP adapter except scheduling.Can anyone let me know how to enter scheduling in sFTP adapter.I want to poll the souce directry every 10 sec.When i enter 10 (not sure it takes in sec or not).) in interval collum , the file is not getting picked.Nothing is displaying in MONI and channels are active and up.

Is there any addtional configuration required,

Regards,

Ani