Unexpected disconnection of witilt v2.5

Dear all,

I’d like to ask for help about witilt v2.5.

My witilt v2.5 will disconnect with receiver side unexpectedly.

The receiver side is a bluetooth device mounted on my desktop and I use hyperterminal to connect with witilt v2.5. However, the hyperterminal would not receive the data in 1 or 10 min.

I also wrote a program on my mobile phone to receive the data, and it also disconnected with witilt unexpectedly. At first, my setting is ADC, 200Hz and I wonder if this setting could not work well. Then I tried other setting like, ADC, from 50Hz to 200Hz, and also changing data mode to Raw, from 200Hz to 300Hz, but the disconnecting situation still happened.

Any ideas?