Because each box has a different tare weight it is important to have the correct box type selected. There are 2 ways to have box type selected:

• You can select a particular box type by scrolling through the list.
• You can have the Contro-3 auto-select the box type based upon the gross weight from the scale.

To choose the box type explicitly (auto-select turned off) each tare must be turned OFF. To do this do the following:

• Press V key.
• The current tare is displayed, along with the current state of the auto-select (ON or OFF). If the tare is ON press the Space key to turn it OFF.
• Press V key again to select the next box type, and turn off the auto-select for this tare if necessary as well. Repeat until all the box types say OFF.
• Press V key until the actual box type you are using is displayed. This is the tare that will be used.

To have Contro-3 auto-select the box type do the following:

• Use V key to scroll through each box type.
• For each box type that you are using ensure the auto-select is on. If it is off you can turn it on by pressing the Space key.
• For all the remaining box types, ensure that the auto-select is turned off. If it is on you can turn it off by pressing the Space key.

• Start with the first box type in the list.
• Go through each box type until you find one that has auto-select on.
• Take the gross weight and deduct the box type’s tare weight. If the resulting net weight falls within the box types MIN and MAX values then use that box type.
• If the net weight falls outside the MIN and MAX range, try the next box type.
• Keep checking until the end of the list is reached.
• If none of the box types satisfied this test, use the default box type. Set the default box type by pressing V key until it is displayed.

The MIN and MAX values are entered at the PC. It is possible that some boxes will share the same MIN and MAX values. This is why it is necessary to turn the auto-select off for the box types you are not using off.