How to Conduct a Dust Monitoring Leak Check?

Checking a Leak on Your Dust Monitor – AQS & Dust Sentry Units

Today we are going to show you how to do a leak check on your dust monitor. This can be inside the AQS one or dust entry units.

What you will need for this Dust Monitor Leak Check is:

• A vacuum gauge, which comes with your service kit.
• We are going to remove the TSP head, and we simply click our vacuum gauge in place, like so.

Performing a Leak Check

• The first thing we need to do is close the purge line.
• We can close the purge line with the tap, or we can also just pinch the tubing here.
• We have a look at our vacuum gauge. We can see that we have got a vacuum of minus 80. We’ve got no air going through the system. The pump is pulling and it is causing a vacuum.
• Now, if there are no leaks in the system, when we turn the pump off, we should be able to keep that vacuum held.
• So, let’s turn the pump off.
• Now we are maintaining that vacuum. There are no leaks in the system.
• We don’t want that to go down any faster than 10 KPA, every 10 seconds. If it is any faster than that, we have a leak
• So once there is no leak in this system you can let go of the tubing.
• You can see the vacuum come out of the system.

That is how you check if there are any leaks in your Dust Monitor.