Facebook has created a Google Chrome plugin called "Facebook Pixel Helper" to help test whether a Facebook pixel is installed correctly on your website.
When you check your site that has the ConnectRetarget PowerPixel installed, you'll notice it shows many pixels.
That's completely normal, and exactly the expected behavior.
The PowerPixel tracks all kinds of behavioral data. Every "data point" will be sent over to Facebook separately. For example, when your visitor scrolls to 25% of your page, it triggers another Facebook event. Same for 50% and 75%.
To track how long they've been on your site, we're sending over an event every 20 seconds, which means the longer your visitor is on your site, the more Facebook events will be send over.