When using a third party USB to serial adapter it may be necessary to alter the communication timing between iChart and the data logger.
1. Open iChart with the current project.
2. Hold down <ctrl> and <alt> then press "t" (without the quotes). The Communication Timing dialog should appear.
3. Select NexSens DN Sensors from the Device dropdown.
4. Select iSIC (Direct connect) from the Communication Option dropdown.

Figure 1: Communication Timing Dialog
5. Enter 1751 in the Pause after cmd (sec) box.
6. Enter 20 in the Tx char space (msec) box.
7. Click OK.

Figure 2: Change Settings