NRF Disconnect reason help

Hey i'm trying to to do different things depending on what reason the ble disconnect says. Hard to view this live and debug.

Got a MDBT42Q module hooked up the bangle. I wish to differentiate the gatt.device.disconnect() (user terminated disconnection) event and the event when range is reason to disconnect. Is this possible ? and what events might those be ? and how do i check them.

Currently i do this with no luck, it seems that the same event is fired for both types of disconnection.

  NRF.on('disconnect', function (reason) {
    if (reason !== BLE_HCI_REMOTE_USER_TERMINATED_CONNECTIO­N) {
      standardBuzz();
    }
    connected = false;
  });

Standard buzz never happends.