If the Instrument_Manager application is unable to communicate with the Noise-Sentry-RT-W it may be because the USB driver failed to install properly. To check the USB driver installation follow the procedure below:
1. Disconnect the USB cable.
2. If necessary take the PC out of stand-by.
3. Reconnect the instrument to an available USB port on the PC.
4. Make sure the charge LED lights-up green (charged) or yellow (charging). If not, make sure that the PC’s USB port is functional and that the USB cable is not damaged. If necessary try on a different PC, and/or with a different USB cable. The charge LED is just an indication that the port is powered. It should light-up, even if the USB driver is not installed properly.
5. Make sure that the operation LED starts blinking. If not go to step 6.
6. Open the Instrument_Manager on the PC. This is usually found in Control Panel – System and Maintenance.
7. Just after connecting the instrument to the PC, observe that the Device Manager window refreshes.
8. Verify that an item named DDCI Platform or Noise-Sentry-RT-W has been created in the list of devices.
9. If an unknown item appears, or an item named DDCI Platform or Noise-Sentry-RT-W is found but has an exclamation mark (indicating a problem) beside it, disconnect the device and try re-installing the driver (see step 10).
10. To re-install the driver disconnect the instrument from the PC. Then Go into Start\All Programs\Noise_Sentry_RT_Management\Driver, and run DDCI_Driver_Install.exe. This re-installs the USB driver. When installing on Windows XP, follow the procedure detailed in Noise_Sentry_RT_XPDriver_Install.pdf