How to Troubleshoot and Maintain CAS Scale Connections in Nomni POS
Maintaining a reliable connection between your CAS scale and Nomni POS is essential for smooth operations. This guide provides troubleshooting steps, restarting instructions, and best practices to ensure consistent connectivity.
Common Error Messages and Resolutions
If your scale shows as "connected" in Nomni POS but returns a "failed to weigh item" error, follow these steps:
Check the Scale Mode: Ensure the scale is set to USB ECR Mode, Type 14. If it is in RS‑232 or USB‑HID mode, the POS may not detect the weight correctly.
Reboot the Scale: After changing the mode, reboot the scale and reconnect it to the POS. Verify that the "Enable Scale" option is turned on in the Nomni POS settings.
Verify Weight Detection: Place an item on the scale to confirm that the POS reads the weight automatically.
Set Output Mode: If your scale has an output mode, set it to continuous/auto output instead of manual/print-on-demand. This ensures the weight is sent without requiring a key press.
Restarting Scale Connections
If the scale is not connecting, you can restart the connection through Nomni POS:
Navigate to Settings > External Devices in the POS.
Tap the Restart Connection button for the scale.
If the settings page is restricted, use an admin or manager PIN to access it.
Best Practices for Maintaining Scale Connectivity
To prevent connection issues:
Keep the Nomni POS app open during operations. Avoid force closing and reopening the app unnecessarily, as this can disrupt device connections like the scale.
Additional Notes
Even if a "Scale Disconnected" message appears in the UI, the scale may still function correctly if configured properly. Ensure all settings are accurate and test the scale to confirm functionality.
By following these steps and best practices, you can resolve common issues and maintain a stable connection between your CAS scale and Nomni POS.