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Type: Posts; User: jim bergmann

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  1. Replies
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    This is an example of what you could do with the...

    This is an example of what you could do with the probe, we found that the hose makes it a lot easer to use as it is flexible. We could make these with a low loss also.
    ...
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    The iManifold already does that. Multi...

    The iManifold already does that. Multi systems/compressors are easy. You could have up to 7 systems complete with superheat and subcooling all at the same time from a single iPad. (1) iManifold, 6...
  3. No he is not giving you a line. We had a lot of...

    No he is not giving you a line. We had a lot of iManifolds in the field and most of the users are now ordering the probes two at a time. We are building the probes as fast as we can get the boards...
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    Those are cool, but I am thinking those are...

    Those are cool, but I am thinking those are mostly for a local connection through WiFi. They would not work over the air as a field solution for sharing data as far as I understand them. Is there...
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    A single probe can support up to 4 outputs. The...

    A single probe can support up to 4 outputs. The wireless RH probe outputs air temperature, RH plus two line temps. The pressure probe measures pressure plus two line temps so it could measure...
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    Medic, Would you prefer to see an elevation...

    Medic,
    Would you prefer to see an elevation adjustment off GPS for airflow? That could easily be done and might make more sense as we are concerned with the average pressure due to altitude and not...
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    From here you can see it would have had to be...

    From here you can see it would have had to be between 29 and 30.5"Hg

    http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html

    From here, you can see that the weather on that day had a...
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    It's not the altitude that matters but the change...

    It's not the altitude that matters but the change in barometric pressure caused by altitude. Barometric pressure can also be impacted by weather. The iManifold measures barometric pressure and...
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    I saw that also, we should probably call that...

    I saw that also, we should probably call that approximate equivalent feet, as it is measured from a barometric pressure sensor in the iManifold. So if the barometric pressure was below that of sea...
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    There was never any disrespect at all. I love to...

    There was never any disrespect at all. I love to talk about these topics as much as anyone. Things like this are exciting and engaging and what I come here for as I am sure we all do. I appreciate...
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    Sorry guys, they were removed as a courtesy to...

    Sorry guys, they were removed as a courtesy to imperial, while not the exact formulas we are using to calculate airflow they were close enough to be of concern at this time in a public forum. While...
  12. Here are a few applications ideas.... Remote...

    Here are a few applications ideas....

    Remote pressures
    Evaporator superheat, measuring total superheat at the condenser with the iManifold
    Subcooling at the evaporator
    Pressures in rooftop...
  13. I did not take it that way, I was simply...

    I did not take it that way, I was simply explaining what it was to help justify the cost. If you are used to buying lower cost instrumentation the price can be a bit hard to swallow. This is...
  14. The probe is a Zigbee radio, precision...

    The probe is a Zigbee radio, precision RH/Temperature sensor, and two wired temperature ports. It can measure 4 variables at once and act as a repeater for the mesh network. It is a lot of...
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    The only thing that you have to watch I have seen...

    The only thing that you have to watch I have seen with this technique is if you are pumping in virgin refrigerant. Virgin refrigerant has no oil, and it will not provide any lubrication for the...
  16. I have not tested a ton of the Android tablets,...

    I have not tested a ton of the Android tablets, but some of the older ones or the ones that they loaded a ton of factory software on that runs in the background can lag. The Nexus 7 seems to work...
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    Nice post Brent, nice to see the tight results. ...

    Nice post Brent, nice to see the tight results.

    One note on the "drawback" of having to be between 70-84 indoor dry bulb. That is not a limitation of the tool, but rather the air conditioning...
  18. You should be able to right now, as most would be...

    You should be able to right now, as most would be a single stage fan with two stages of refrigeration, you would simply run on both stages, at full capacity to get the estimated airflow, enter the...
  19. Imperial Tools Wireless Pressure Probes

    http://youtu.be/NGsPL4_F95U

    For some reason the video would not show in the main link. I did not want some who were waiting for these to come out to miss the announcement.

    The pressure probes...
  20. The wireless pressure probes are available for...

    The wireless pressure probes are available for shipment. Hope you enjoy the video preview. They are very cool.


    http://youtu.be/NGsPL4_F95U
  21. All backorders are filled first in order of their...

    All backorders are filled first in order of their placement. All will be filled by the end of the day today and on the way to distribution.

    Thanks

    Jim
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    Thanks for the feedback and idea and support for...

    Thanks for the feedback and idea and support for the project. This makes a lot of sense with the wireless probes, makes a great standalone product and a great accessory for the iManifold that will...
  23. Thanks. Try one thing for me, there are two...

    Thanks. Try one thing for me, there are two battery holders, put a set of three batteries in one at a time and make sure that both sides power the iManifold individually. I am wondering if you could...
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    There are plans, not sure of the time line yet,...

    There are plans, not sure of the time line yet, it requires a lot of effort, but we do understand a lot of HVAC contractors are using windows tables for easy integration with office systems. More...
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    I agree on the multi evap, my concern was...

    I agree on the multi evap, my concern was measuring temp at the evap and pressure at the condenser inlet and not taking into consideration the line loss. I used to always install a tap on the...
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