Connect a scale

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  • In EU member states, certification is legally required to use a scale as an integrated device.

  • Odoo is not certified in several countries, including France, Germany, and Switzerland. If you reside in one of these countries, you can still use a scale but without integration into your Odoo database. Alternatively, you can acquire a non-integrated certified scale that prints certified labels, which can then be scanned into your Odoo database.

To connect a scale to the IoT system, use a USB cable. In some cases, you may need a serial-to-US adapter to complete the connection. If the scale is compatible with an IoT system, no additional setup is required; the scale is automatically detected as soon as it is connected. If the scale is not detected, reboot the IoT box or restart the Windows virtual IoT service and update the scale's drivers.

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If the scale still does not function after updating the drivers, it might not be compatible with the Odoo IoT system. In such cases, a different scale must be used.

Once the scale is connected to the IoT system, follow these steps to configure it in the POS settings:

  1. Access the POS settings and select your POS, or click the vertical ellipsis button (⋮) on a POS card and click Edit.

  2. Scroll down to the Connected Devices section and enable IoT Box.

  3. Select the scale in the Electronic Scale field.

  4. Click Save.

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Connect an IoT system to a POS

The scale is then available in all the POS's sessions. If a product is configured with a price per weight, selecting it on the PoS screen opens the scale popup. The cashier can then weigh the product to automatically add the correct price to the cart.

Electronic Scale dashboard view when no items are being weighed.

Ariva S scales

For Ariva S series scales (manufactured by Mettler-Toledo, LLC.) to function with IoT systems, a specific setting must be modified, and a dedicated Mettler USB-to-proprietary RJ45 cable is required.

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The official Mettler USB-to-RJ45 cable (Mettler part number 72256236) must be used. Contact Mettler or a partner to purchase an authentic cable. No other cable works for this configuration.

To configure the Ariva S scale for IoT system recognition, refer to page 17 of Mettler’s Setup Guide for Ariva S series scales and follow these steps:

  1. Hold the >T< button for eight seconds, or until CONF appears.

  2. Press >T< until GRP 3 appears, then press >0< to confirm.

  3. Under 3.1, ensure the setting is set to 1 (USB Virtual COM ports) and press >T< to cycle through the options under group 3.1.

  4. Once 3.1 is set to 1, press >0< to confirm the selection.

  5. Continue to press >0< until GRP 4 appears.

  6. Press >T< until EXIT appears.

    Quan trọng

    Do not make any other changes unless otherwise needed.

  7. Press >0<.

  8. Press >0< again to SAVE; the scale restarts.

  9. Reboot the IoT box or restart the Windows virtual IoT service. The scale should then appear as Toledo 8217, as opposed to the previous display, where it appeared as Adam Equipment Serial.