Can I customize data collection intervals for a device?
Collection intervals determine how frequently data is collected and are configured per datasource in the datasource definition. Remember that everything in the datasource definition propagates to all instances of that datasource in your account. You can override the collection interval for a datasource on a particular device or for all devices in a particular group by adding a custom device/device group property with a name in the format DataSourceName.pollingInterval and a value equal to the desired collection interval (in minutes).
Adding a collection Interval property
To add a custom property that dictates collection interval, navigate to the device or group in the device tree. Select manage, and scroll to the properties table.