Yes, ladies and gentleman, thats right we have a new micron gauge on the market. The DigiVac Bullseye!
Let me give you guys a little background on how I got my hands on one of these. A couple months ago I was finishing up with my apprenticeship at the UA training center in New Jersey. Tim Collins who is the President of DigiVac made the effort to come out and talk with the graduating class to get our opinions on his new Bullseye gauge. He went over the features and took our questions and feedback. That was not good enough for me. I wanted to put it through the paces of everyday life in the HVAC world. Tim was onboard for me to try it out and after giving me a tour of their manufacturing facility in Matawan, NJ (Yes they are Made In our United States of America!) I have been using it every chance I could get.
We have not fully geared up with the summer service calls so I intend to add to this as time goes on.
Lets get to it..
What is that hanging in the back ground you ask?
That would be the Bullseye. I can't think of any other micron gauge with a magnet so you can actually put the tool where it is convenient to view.
First and foremost, this gauge just feels tuff. It has a rubber boot around to protect the instrument. Incorporated in the boot is a kick stand to prop the tool up.
Another feature that no other gauge on the market has is the graphical displays. It actually logs the last 1min to 24 hrs of vacuum. Here are a few pics of the displays..
Now let me say I am using the Bluvac in some comparisons of the Bullseye because it seems that is what a lot of you guys including myself have been using lately.
The Graphical displays
The display reads left to right. The 2 numbers on the left show the highest and lowest numbers on that display. This was set up for 10 mins so about the 5 min mark you can see where I isolated the CRT's and shut the pump off. After 5 mins the reading rose from 690 microns to 940 microns. It leveled off at the top thus indicating off gassing and not a leak. The word "stable" shows that the rate of change has stabilized. There are also Pump, Leak, and Off Gas indicators. I use this graph the most of the 4 available displays.
One thing that takes getting used is the Word Indicators. They look over the entire length of the selected graph time so it will not change from say "pump" to "Off Gas" right away even though the microns are changing. Which is a good thing because you should be waiting a good 10-15 mins at least to analyze the readings of what is going on in the system. If I recall Tim uses microns/ min to come up with the wording.
The second picture shows me turning the pump back on and the microns decreasing. The number in the Top right corner is the current micron reading of 700. So the microns rose to 970 before I turned the pump on. The indicator changed to "Pump" and from the graph it has been on about 2 mins.
Here is an example of a leaking system. Note how the line continues to rise and not taper off.
I will continue on another page..
Let me give you guys a little background on how I got my hands on one of these. A couple months ago I was finishing up with my apprenticeship at the UA training center in New Jersey. Tim Collins who is the President of DigiVac made the effort to come out and talk with the graduating class to get our opinions on his new Bullseye gauge. He went over the features and took our questions and feedback. That was not good enough for me. I wanted to put it through the paces of everyday life in the HVAC world. Tim was onboard for me to try it out and after giving me a tour of their manufacturing facility in Matawan, NJ (Yes they are Made In our United States of America!) I have been using it every chance I could get.
We have not fully geared up with the summer service calls so I intend to add to this as time goes on.
Lets get to it..
What is that hanging in the back ground you ask?

That would be the Bullseye. I can't think of any other micron gauge with a magnet so you can actually put the tool where it is convenient to view.


First and foremost, this gauge just feels tuff. It has a rubber boot around to protect the instrument. Incorporated in the boot is a kick stand to prop the tool up.
Another feature that no other gauge on the market has is the graphical displays. It actually logs the last 1min to 24 hrs of vacuum. Here are a few pics of the displays..


Now let me say I am using the Bluvac in some comparisons of the Bullseye because it seems that is what a lot of you guys including myself have been using lately.
The Graphical displays


The display reads left to right. The 2 numbers on the left show the highest and lowest numbers on that display. This was set up for 10 mins so about the 5 min mark you can see where I isolated the CRT's and shut the pump off. After 5 mins the reading rose from 690 microns to 940 microns. It leveled off at the top thus indicating off gassing and not a leak. The word "stable" shows that the rate of change has stabilized. There are also Pump, Leak, and Off Gas indicators. I use this graph the most of the 4 available displays.
One thing that takes getting used is the Word Indicators. They look over the entire length of the selected graph time so it will not change from say "pump" to "Off Gas" right away even though the microns are changing. Which is a good thing because you should be waiting a good 10-15 mins at least to analyze the readings of what is going on in the system. If I recall Tim uses microns/ min to come up with the wording.
The second picture shows me turning the pump back on and the microns decreasing. The number in the Top right corner is the current micron reading of 700. So the microns rose to 970 before I turned the pump on. The indicator changed to "Pump" and from the graph it has been on about 2 mins.
Here is an example of a leaking system. Note how the line continues to rise and not taper off.

I will continue on another page..