Не правильная выгрузка веса из 1c

  AddEventHandler("catalog", "OnBeforeProductAdd", "OnBeforeProductAddQuan");   
  AddEventHandler("catalog", "OnBeforeProductUpdate", "OnBeforeProductUpdateQuan");
  function OnBeforeProductAddQuan(&$arFields)
  { 
   if ($_REQUEST['mode']=='import') 
      {
         $w=$arFields['WEIGHT']/100;
         if ($w>0){
            $arFields['WEIGHT']=$w;  
         }

         return true;
      }
  }

if ($_REQUEST['mode']=='import') 

$_REQUEST['mode']

AddEventHandler("catalog", "OnBeforeProductAdd", "OnBeforeProductAddWeight");
AddEventHandler("catalog", "OnBeforeProductUpdate", "OnBeforeProductAddWeight");
function OnBeforeProductAddWeight($id, &$arFields)
{
    if ($_REQUEST['mode']=='import')// при импорте из 1С
    {
        //\Bitrix\Main\Diag\Debug::dumpToFile($arFields['WEIGHT']);
        $w = ($arFields['WEIGHT'] / 1000);
        if($w > 0)
            $arFields['WEIGHT'] = $w;
        return true;
    }
}